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ORDER NO. MD0607233CE
DVD Stereo System
SA-VK750EE
Colour (S)... Silver Type
Notes: This model's DVD mechanism changer unit is CRS1D. Please refer to the original Service Manual (Order No. MD0603065A3) for this mechanism.
Specifications
n AMPLIFIER SECTION RMS Output Power: Dolby Digital Mode Front Ch Surround Ch Center Ch Total RMS Dolby Digital mode power PMPO output power n FM/AM TUNER, TERMINALS SECTION Preset stations Frequency Modulation (FM) Frequency range Sensitivity S/N 26 dB Antenna terminals Amplitude Modulation (AM) Frequency range 522 kHz to 1629 kHz (9-kHz step) 1000 µV/m Phone jack © 2006 Matsushita Electric Industrial Co. Ltd.. All rights reserved. Unauthorized copying and distribution is a violation of law. AM sensitivity S/N 20 dB at 999 kHz n DISC SECTION 87.50 MHz to 108.00 MHz (50-kHz step) 4.0 µV (IHF) 2.2 µV 75 (unbalanced) FM 15 stations AM 15 stations 110 W per channel (3 ), 1 kHz, 10% THD 110 W per channel (3 ), 1 kHz, 10% THD 110 W per channel (3 ), 1 kHz, 10% THD 550 W 5500 W Terminal Mic jack Sensitivity Terminal Music Port jack (Front) Sensitivity Terminal n CASSETTE DECK SECTION Type Track system Head Record/Playback Erasure Motor Recording system Erase System Tape Speed Overall Frequency Response (+3, -6 dB) at DECK OUT Normal S/N Ratio Wow and Flutter Fast Forward and Rewind Time 35 Hz to 14 kHz 50 dB (A weighted) 0.18% (WRMS) Approx. 120 seconds with C-60 cassette tape Auto Reverse 4-Track, 2 Channel Solid permalloy head Double Gap Ferrite Head DC Servo Motor AC Bias 100 kHz AC Erase 100 kHz 4.8 cm/s 100-mV, 4.7 k Stereo, 3.5-mm jack 0.7 mV, 600 Mono, 6.3-mm jack (2 system) Stereo, 3.5-mm jack
SA-VK750EE
Disc played [8 cm or 12 cm] (1) DVD (DVD-Video, DivX
#1,#2
n GENERAL )
# 2,#3
Power supply Power consumption Power consumption in standby mode: , MP3
# 2,#4
AC 230, 50Hz 230 W 0.5 W (approximate)
(2) DVD-RAM (DVD-VR, JPEG # 2,#3, MP3# 2,#4, MPEG4 # 2,#5, DivX# 1,#2) (3) DVD-R (DVD-Video, DVD-VR, JPEG DivX# 1,#2) (4) DVD-R DL (DVD-Video, DVD-VR) (5) DVD-RW (DVD-Video, DVD-VR, JPEG # 2,#3, MP3 # 2,#4, MPEG4 # 2,#5 , DivX# 1,#2) (6) +R/ +RW (Video) (7) +R DL (Video) (8) CD,CD-R/RW [CD-DA, Video CD, SVCD# 6, MP3# 2,#4, WMA# 2,#7, JPEG# 2,#3, MPEG4# 2,#5, DivX# 1,#2, HighMAT Level 2 (Audio and Image)]
#1
, MPEG4
# 2,#5
,
Dimensions (W x H x D) Mass Operating temperature range Operating humidity range n SYSTEM
250 x 330 x 334.6 mm 5.5 kg + 5 to + 35°C 5% to 90% RH (no condensation)
Plays all versions of DivX® video (including DivX®6) with standard playback of DivX® media files. Certified to the DivX Home Theater Profile. GMC (Global Motion Compensation) is not supported. The total combined maximum number of recognizable audio, picture and video contents and groups: 4000 audio, picture and video contents and 400 groups. Exif Ver 2.1 JPEG Baseline files Picture resolution: between 160 x 120 and 6144 x 4096 pixels (Sub sampling is 4:0:0, 4:2:0, 4:2:2 or 4:4:4). Extremely long and narrow pictures may not be displayed. For information on speaker system, please refer to the original Service Manual (Order No. MD0605204CE) for SB-VK750GC-S, (Order No. MD0605205CE) for SB-PS750GC-S and (Order No. MD0605206CE) for SB-PC750GC-S.
#2
#3
#4 #5
MPEG-1 Layer 3, MPEG-2 Layer 3
MPEG4 data recorded with the Panasonic SD multi cameras or DVD video recorders. Conforming to SD VIDEO specifications (ASF standard) / MPEG4 (Simple Profile) video system / G.726 audio system
#6 #7
Conforming to IEC62107 Windows Media Audio Ver. 9.0 L3
Not compatible with Multiple Bit Rate (MBR) Pick up Wavelength (DVD/CD) Laser power (DVD/CD) Audio output (Disc) Number of channels Frequency response (CD-Audio) n VIDEO SECTION Video system Signal system Composite video output Output level Terminal S-video output Y output level C output level Terminal Component video output [NTSC : 480p/480i, PAL: 576p/576i] Y output level PB output level PR output level Terminal Pin jack (Y: green, PB: blue, PR: red) (1 system) 1 Vp-p (75 ) 0.7 Vp-p (75 ) 0.7 Vp-p (75 ) 1 Vp-p (75 ) 0.3 Vp-p (75 ) (PAL) 0.286 Vp-p (75 ) (NTSC) S terminal (1 system) 1 Vp-p (75 ) Pin jack (1 system) PAL625/50, PAL525/60, NTSC (FL, FR, C, SL, SR, SW), 5.1 ch 4 Hz to 20 kHz Audio performance (measurement at: Rec out terminal) 662 nm/785 nm CLASS 1 / CLASS 1M
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Notes: 1. Specifications are subject to change without notice. Mass and dimensions are approximate. 2. Total harmonic distortion is measured by the digital spectrum analyzer.
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CONTENTS
Page
1 Safety Precautions 1.1. General Guidelines 1.2. Before Repair and Adjustment 1.3. Protection Circuitry 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 3 Handling Precautions for Traverse Unit 3.1. Handling Optical Pickup 3.2. Replacing Precautions for Optical Pickup Unit 3.3. Grounding for Preventing Electrostatic Destruction 4 Precaution of Laser Diode 5 Warning 5.1. Service caution based on legal restrictions 6 Accessories 7 Operation Procedures 7.1. Main Unit Operation Control 7.2. Remote Control Operation Control 7.3. Disc Information 7.4. DivX VOD Content 8 New Features 8.1. CRS1D Mechanism Overview 8.2. Music Port 9 About HighMAT 9.1. What HighMAT? 9.2. Why take advantage of HighMAT? 9.3. Benefits of HighMAT? 10 Self diagnosis and special mode setting 10.1. Service Mode Summary Table 10.2. Service Mode Table 1 10.3. Special Mode Table 2 11 Assembling and Disassembling 11.1. Caution 11.2. Disassembly flow chart 11.3. Main Parts Location 11.4. Disassembly of Top Cabinet 11.5. Disassembly of CD/DVD Changer Unit (CRS1D) 11.6. Disassembly of Rear Panel 11.7. Disassembly of Main P.C.B. 11.8. Disassembly of Front Panel Unit 11.9. Disassembly of Digital Amp P.C.B. 11.10. Replacement for Power Amp IC (Digital Amp P.C.B.) 11.11. Disassembly of SMPS P.C.B. 11.12. Replacement of Power Amp IC (SMPS P.C.B.) 11.13. Disassembly of Panel P.C.B., Mic P.C.B. & Tact Switch P.C.B. 48 7 8 8 8 8 9 10 10 11 12 12 13 14 16 17 17 19 20 20 20 21 24 24 24 32 40 40 41 42 43 43 44 45 45 46 46 47 47 11.18. Disassembly of Deck Mechanism 11.19. Replacement for cassette lid 11.20. Rectification for tape jam problem 12 Service Fixture and Tools 13 Service Positions 13.1. Checking and Repairing of Main P.C.B. 13.2. Checking and Repairing of SMPS P.C.B. & Digital Amp P.C.B. 13.3. Checking and Repairing of Panel, Deck & Deck Mechanism P.C.B. 14 Adjustment Procedures 14.1. Cassette Deck Section 14.2. Alignment Points 15 Voltage and Waveform Chart 15.1. DVD Module P.C.B. 15.2. Main P.C.B. 15.3. Panel P.C.B. 15.4. Deck P.C.B. & Deck Mechanism P.C.B. 15.5. Digital Amp P.C.B. & Mic P.C.B. 15.6. Waveform Chart 16 Wiring Connection Diagram 17 Block Diagram 18 Notes of Schematic Diagrams 19 Schematic Diagram 19.1. Optical Pickup Unit Circuit 19.2. (A) DVD Module (DV3.2) Circuit 19.3. (B) Main Circuit 19.4. (C) Panel Circuit 19.5. (D) Tact Switch Circuit & (E) Mic Circuit 19.6. (F) Damp Circuit 19.7. (G) Speaker Circuit 19.8. (H) SMPS Circuit 19.9. (I) Deck Circuit & (J) Deck Mechanism Circuit 20 Printed Circuit Board 20.1. (A) DVD Module P.C.B. 20.2. (B) Main P.C.B. 20.3. (C) Panel P.C.B. (J) Deck Mechanism, P.C.B. 20.5. (F) Damp P.C.B. & (G) Speaker P.C.B. 60 61 61 63 64 65 67 70 71 72 73 81 83 89 91 91 92 96 100 101 102 104 105 107 109 110 111 112 113 114 59 6 6 6 6 11.14. Disassembly of Deck mechanism unit 11.15. Disassembly of Deck P.C.B. 11.16. Disassembly of Traverse Unit
Page
49 49 50 51 53 57 57 58 58 58
11.17. Disassembly of optical pickup unit (CD/DVD mechanism)
20.4. (D) Tact Switch P.C.B., (E) Mic P.C.B., (I) Deck P.C.B. &
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20.6. (H) SMPS P.C.B. 21 Basic Troubleshooting Guide for Backend Module 21.1. Firmware and Key Download 21.2. Initialisation and Playability 22 Illustration of ICs, Transistors and Diodes 23 Terminal Function of IC
115 117 117 117 118 119
23.1. IC2600 (C2CBYY000269) System Microprocessor 24 Exploded Views 24.1. Cabinet Parts Location 24.2. Deck Mechanism Parts Location (RAA3413-1S) 24.3. Packaging 25 Replacement Parts List
119 121 121 123 124 125
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1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed. 3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1.
Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug. 2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the chassis, the reading should be between 1M and 5.2M. When the exposed metal does not have a return path to the chassis, the reading must be .
Figure 1
1.1.2.
Leakage Current Hot Check (See Figure 1)
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 2. Connect a 1.5k, 10 watts resistor, in parallel with a 0.15µF capacitor, between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1. 3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor. 4. Check each exposed metallic part, and measure the voltage at each point. 5. Reverse the AC plug in the AC outlet and repeat each of the above measurements. 6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to the customer.
1.2.
Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C2254, C2256, C2288, C2289, C2632, C2721, C2725, C2811, C2815, C2817, C5512, C5513, C5514, C5712, C5713, C5715, C5805, C5806, C5807, C5914, C5916, C5917, C5929, C5930 and C5977 through a 10, 5W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid overcurrent. Current consumption at AC 230V, 50Hz in NO SIGNAL (vol. min, at CD mode) should be ~500mA.
1.3.
Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed: · No sound is heard when the power is turned on. · Sound stops during a performance. The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are "shorted", or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used. If this occurs, follow the procedure outlines below:
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SA-VK750EE
1. Turn off the power. 2. Determine the cause of the problem and correct it. 3. Turn on the power once again after one minute. Note : When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by electro static discharge (ESD). 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminium foil, to prevent electrostatic charge build up or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsolder ES devices. 4. Use only an anti-static solder remover device. Some solder removal devices not classified as "anti-static (ESD protected)" can generate electrical charge to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices. 6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or comparable conductive material). 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. Caution Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 8. Minimize body motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device).
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SA-VK750EE
3 Handling Precautions for Traverse Unit
The laser diode used inside optical pickup could be destroyed due to static electricity as a potential difference is caused by electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic destruction during repair.
3.1.
Handling Optical Pickup
1. Do not impact on optical pickup as the unit structurally uses an extremely precise technology. 2. Short-circuit the flexible cable of optical pickup remove from the circuit board using a short-circuit pin or clip in order to prevent laser diode from electrostatic destruction (Refer to Fig. 3.1 and Fig. 3.2) 3. Do not handle flexible cables forcibly as this may cause snapping. Handle the parts carefully (Refer to Fig. 3.1) 4. A new optical pickup is equipped with an anti-static flexible cable. After replacing and connecting to the flexible board, cut the anti-static flexible cable. (Refer to Fig. 3.1)
Fig 3.1
3.2.
Replacing Precautions for Optical Pickup Unit
CD/DVD Optical Pickup The optical pickup by which part supply was carried out attaches the short clip to the flexible board for laser diode electrostatic discharge damage prevention. Please remove the short clip and be sure to check that the short land is open, before connecting. (Please remove solder, when the short land short-circuits.)
3.3.
Grounding for Preventing Electrostatic Destruction
1. Human body grounding Use the anti-static wrist strap to discharge the static electricity accumulated in your body. (Refer to Fig. 3.2) 2. Work place grounding Place a conductive material (conductive sheet) or ironboard where optical pickup is placed. (Refer to Fig. 3.2) Note : Keep your clothes away from optical pickup as wrist strap does not release the static electricity charged in clothes.
Fig. 3.2
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4 Precaution of Laser Diode
Caution : This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens. Wavelength : 785 nm(CD)/662 nm(DVD) Maximum output radiation power from pick up : 100 µW/VDE Laser radiation from pick up unit is safety level, but be sure the followings: 1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous. 2. Do not adjust the variable resistor on the pick up unit. It was already adjusted. 3. Do not look at the focus lens using optical instruments. 4. Recommend not to look at pick up lens for a long time. CAUTION!
THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
n Use of Caution Labels
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5 Warning
5.1.
5.1.1.
Service caution based on legal restrictions
General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation. The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin (Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that of the normal solder. Definition of PCB Lead Free Solder being used
The letter of "PbF" is printed either foil side or components side on the PCB using the lead free solder. (See right figure)
Service caution for repair work using Lead Free Solder (PbF) · The lead free solder has to be used when repairing the equipment for which the lead free solder is used. (Definition: The letter of "PbF" is printed on the PCB using the lead free solder.) · To put lead free solder, it should be well molten and mixed with the original lead free solder. · Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC. · Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the lead free solder. · Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30 degrees C (662±86°F). Recommended Lead Free Solder (Service Parts Route.) · The following 3 types of lead free solder are available through the service parts route. RFKZ03D01K-----------(0.3mm 100g Reel) RFKZ06D01K-----------(0.6mm 100g Reel) RFKZ10D01K-----------(1.0mm 100g Reel) Note * Ingredient: Tin (Sn), 96.5%, Silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%
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SA-VK750EE
6 Accessories
Remote control
AC power supply cord
FM indoor antenna
AM loop antenna
Video cable
Mic
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7 Operation Procedures
7.1. Main Unit Operation Control
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7.2.
Remote Control Operation Control
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7.3.
7.3.1.
Disc Information
Disc Playability
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7.3.2.
To Play MP3/ WMA and still Pictures (JPEG/ tiff)
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7.4.
DivX VOD Content
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8 New Features
8.1. CRS1D Mechanism Overview
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8.1.1.
General Feature
· This is a five disc changer mechanism for CD/DVD. The outline figure is shown below.
· The mechanism has "CHANGE WHILE PLAY" function. It open other trays for disc exchanging while one tray is at PLAY position performing recording or reproducing. · The mechanism can quickly change all trays with "CHANGE ALL" function. All trays can be move to OPEN position with one operation. · There is no sensor to indicate presence of disc on any tray.
8.1.2.
Hardware composition
Function The switch is used to detect normal tray opening The switch is used for detect tray being manually push/trigger when full open Is used to detect cam gear home position Used for normal single tray closing Used to detect cam gear rotate to Play Driving position Detect TRV clamping complete position Detect tray completely transfer for play position to stocking position Detect TRV vertical movement position Detect a default position of TRV vertical movement position To drive Motor Main driving source for changer Switching the driving source from motor to: 1. Tray open/close 2. Drive tray to play/stock position and TRV vertical movement
· Below is the hardware components of the mechanism
Name Open Switch (OPEN-SW) Home Switch (HOME-SW) Close Sensor (CLOSE-SENSOR) Play Switch (PLAY-SW) Stocking Switch (STOCK-SW) UD Sensor (UD-SENSOR) Top Switch (TOP-SW) Driver IC Motor Plunger
8.1.3.
Mechanism Operation
· This mechanism has the following state: 1. Driving of a tray to open/close 2. Up/down operation of a traverse performs a state changes of tray. By using the plunger to lift/release of a switching gear, and the cam gear to lift/release the function gear the motor can be link to several gear trains to perform various operations. · The functions that can be perform in this mechanism are described as below:
Condition Open current playing tray Open All Stock Play Play & Open Tray-* Explanation The state to change current playing disc. All tray will be open at once and current tray at PLAY position will be expose. The state where all trays being driven to OPEN position. The disc can be taken in or out from tray to tray by close tray one by one from top to bottom. The state where the trays are stored in STOCK position The state where one of the tray 5 trays is being driven to PLAY position and clamped by traverse unit The state where one of the tray is in playing position performing recording or reproducing, other trays can be used (OPEN position) for disc exchanging without stopping the recording or reproducing process.
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Condition Change Close All
Explanation The state when one of the opened tray being driven from OPEN position to STOCK position and other opened trays remain still at OPEN position. The state where all open trays will being driven from OPEN position to STOCK position, one by one from top to bottom
Note: * represent tray number (from 1 ~ 5)
8.1.4.
Note:
New CD/DVD Mechanism (CRS1D)
This service manual does not contain the following information for the mention CD/DVD Mechanism drive: · Schematic Diagram, Block Diagram and P.C.B. layout of CD/DVD Loading P.C.B. · Part List for individual parts of the mechanism. · Exploded View and Parts List for individual parts of the CD/DVD Mechanism drive. Please refer to the original service manual (Order No. MD0603065A3) for the CD/DVD Mechanism Drive CRS1D.
8.2.
Music Port
With reference to page 31 of the operating instruction manual.
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9 About HighMAT
9.1. What's HighMAT?
Consumers worldwide are using PCs to create their own collections of music, photos and even video by burning them onto CDs. But how these collections can be experienced across different devices can be confusing to navigate, time consuming to access for a DVD player, and be incomplete in terms of music information available to the customer. HighMAT offers a solution to this growing consumer problem. HighMAT dramatically improves the digital media experience on consumer electronic devices by delivering a simple, standardized approach that allows consumers who have created personal collections of digital music, photography and video on their PC to: >> Create a HighMAT CD or DVD which can be easily played back on consumer electronics devices such as CD and DVD players, and car stereos. >> Move digital media files (using recordable media such as CD-R and CD-RW) between the PC and various playback devices such as CD and DVD players. A new standard for creating personal media on consumer electronic devices, HighMAT enable easier and more seamless interoperability between Windows PCs and devices designed for your living room, or the car.
9.2.
Why take advantage of HighMAT?
A Problem Defined:Today, when consumers create their own digital audio, video or photo collections on CD-R or other physical formats, there are numerous, inconsistent ways that devices read the data. For the consumer, the playback experience can be confusing:
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A Solution Created: HighMAT delivers a better digital media access experience by creating a standard approach for PCs to structure digital media on various physical formats and for playback devices to read the data.
9.3.
Benefits of HighMAT?
Conventional HighMAT Even though DVD player is CD-R/RW compatible, the inconsistent ways HighMAT compatible products play content back with consistent that various DVD players can read the music or photos files often leads interface. This includes products which are JPEG compatible products to a confusing and inconsistant playback experince. without HighMAT support.
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HighMAT is now available for CD Burning and in Leading DVD PlayersHighMAT is a new technology that is now available in leading software and consumer electronic devices to dramatically improve the digital media experience when you create homemade CDsHighMAT delivers a simple, standardized way for PC software and consumer electronics devices to talk to each other and work better together. When you create your homemade CDs with software that supports HighMAT CD burning, and then play them back on a DVD player that supports HighMAT, you get better, easier navigation. You get folders you can access with a single click of your DVD player´s remote control. You can view important information about your music like full song names, artist titles, album names and genre. And you can get faster startup on your home entertainment device. To enjoy the benefits of HighMAT, all you need is software that supports HighMAT for CD burning of music or photos, as well as a home entertainment device like a DVD player that supports HighMAT for playback. Always look for the HighMAT logo on your software or home entertainment device to ensure it supports the HighMAT experience.
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10 Self diagnosis and special mode setting
This unit is equipped with functions for checking and inspecting namely: Self-Diagnostic and Test Mode.
10.1. Service Mode Summary Table
The service modes can be activated by pressing various button combination on the player and remote control unit. Below is the summary of major checking:
Player buttons STOP Remote control unit buttons 0 Application Error code display Note (Refer to the section, "10.2.2 DVD Self Diagnostic Function-Error Code"). (Refer to the section "10.2.1 Service Mode Table 1 for more information"). (Refer to the section "10.2.1 Service Mode Table 1 for more information").
5
Jitter checking
6 7 FUNCTIONS 3
Region display and mode Micro-processor firmware version check DVD laser drive current check CD laser drive current check Initial setting of laser drive current Initialization of the player (factory setting is restored.) Used after replacement of micro-computer, FLASH ROM IC, EEPROM and HDMI module. Region and Firmware version display DVD Module Reset (In Initialization Mode)
8 ENTER
10.2. Service Mode Table 1
By pressing various button combinations on the player and remote control unit can activate the various service modes for checking. Special Note: Due to the limitations of the no. characters that can be shown on FL Display, the "FL Display" button on the remote control unit is used to show the following page. (Display 1 / Display 2).
10.2.1. Service Mode Table 1
Item Mode Name Error code check Description Error code check. The latest error code stored in the EEPROM IC is displayed. Key Operation Remote Control Key In STOP (no disc) mode, press STOP button on the player, and "0" button on the remote control unit. *With pointing of cursor up and down on display. Error code (play_err) is expressed in the Cancelled automatically 5 seconds later. To exit, press [POWER] button on main following convention. Error code = 0 x DAXX is expressed: DVDnn unit or remote control. UXX Error code = 0 x DBXX is expressed: DVDnn HXX Error code = 0 x DXXX is expressed: DVDnn FXXX Error code = 0 x 0000 is expressed: DVDnn F--* "xx" denotes the error code In STOP (no disc) mode, press STOP button on the player, and "1" or "2" button on the remote control unit. Press STOP or PLAY button to exit. FL Display
ADSC internal RAM data check
ADSC internal RAM data check. ADSC internal RAM data is read out and displayed.
The value is shown in hexadecimal notation. The above example shows the data in ADSC address OFAh is 6901h.
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Item Mode Name CD laser drive current measurement Description CD laser drive current measurement. CD laser drive current measured and the result is displayed together with the initial value stored in the EEPROM IC. After the measurement, CD laser emission is kept on. It is turned off when POWER key is switched off. (It is also turned off when POWER button on the player is switched off.)
FL Display 1. For CD laser drive current mode
Key Operation Remote Control Key In STOP (no disc) mode, press STOP button on the player, and "3" button on the remote control unit. Cancelled automatically 5 seconds later. Press "FL Display" button on remote control unit for next page (FL Display).
2. The measurement Value (In decimal notation)
Device Name
Display the device name.
1.
2.
In STOP (no disc) mode, press STOP button on the player, and "4" button on the remote control unit. *With pointing of cursor up and down on display. Cancelled automatically 5 seconds later. To exit, press [POWER] button on main unit or remote control.
3.
Jitter check
Jitter check. Jitter rate is measured and displayed. Measurement is repeatedly done in the cycle of one second. Read error counter starts from zero upon mode setting. When target block data failed to be read out, the counter advances by one increment. When the failure is caused by minor error, it may be corrected when retired to enable successful reading. In this case, the counter advances by one. When the error persists even after retry, the counter may jump by two or more.
1. For jitter measurement mode
In STOP (no disc) mode, press STOP button on the player, and "5" button on the remote control unit. Press STOP or OPEN button to exit. Press "FL DISPLAY" button on remote control unit for next page (FL Display).
2.
Jitter rate is shown in decimal notation to one place of decimal. Focus drive value is shown in hexadecimal notation. Region display Region display & mode In STOP (no disc) mode, press STOP button on the player, and "6" button on the remote control unit. Cancelled automatically 5 seconds later.
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Item Mode Name Description Micro- processor Micro-processor firmware version firmware version display & EEPROM checksum display & display. EEPROM checksum display.
FL Display
Key Operation Remote Control Key In STOP (no disc) mode, press STOP button on the player, and "7" button on the remote control unit. Cancelled automatically 5 seconds later. Press "FL Display" button on remote control unit for next page. (FL Display) Refer to Section 10.3.1 for more information.
DVD module firmware version display
DVD module firmware version display is on the FL Display.
In STOP (no disc) mode, press STOP button on the player, and "8" button on the remote control unit. Cancelled automatically 5 seconds later.
Initialization
DVD Module Reset
DVD laser drive current measurement
Initialization. User settings are cancelled and player is initialized to factory setting. To reset DVD Module. In initialisation when the FLASH ROM IC or DVD Module is replaced. DVD laser drive current measurement. DVD laser drive current is measured and the result is displayed together with the initial value stored in the EEPROM IC. After the measurement, DVD laser emission is kept on. It is turned off when POWER key is switched off. (It is also turned off when POWER button on the player is switched off.)
In STOP (no disc) mode, press STOP button button on the player, and on the remote control unit. In initialisation mode, press and hold STOP button on the player followed by "Enter" button on the remote control. Cancelled automatically 5 seconds later. In STOP (no disc) mode, press STOP button on the player, and FUNCTIONS button on the remote control unit. Cancelled automatically 5 seconds later. Press "FL Display" button on remote control unit for next page (FL Display) on values of DVD drive current.
1. For DVD laser drive current mode
2. The measurement value (In decimal notation)
The value denotes the current in decimal notation. The above example shows the initial current is 20mA and the measured value is 20mA. CommunicDisplays the frequency of ation error display communication errors between system control IC and mechanism control IC. In STOP (no disc) mode, press STOP button on the player, and "MENU" button on the remote control unit. Cancelled automatically 5 seconds later.
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SA-VK750EE
Item Mode Name Description Initial setting of Initial setting of laser drive current. laser drive current Initial current value for each of DVD laser and CD laser is separately saved in the EEPROM IC.
FL Display 1. For DVD/CD drive current mode
2. The measurement value (In decimal notation)
Key Operation Remote Control Key In STOP (no disc) mode, press STOP button on the player, and PAUSE button on the remote control unit. Cancelled automatically 5 seconds later. Press "FL Display" button on remote control unit for next page (FL Display) on values of laser drive current.
The value denotes the current in decimal notation. The above example shows the initial current 20mA and 23mA for DVD laser and CD laser respectively when the laser is switched on. ECC error display ECC decode error display. In STOP (no disc) mode, press STOP button on the player, and TOP MENU button on the remote control unit. Cancelled automatically 5 seconds later. Press "FL Display" button on remote control unit for next page (FL Display) on values of laser drive current.
Time 1 check
Timer 1 check. Laser operation time is measured separately for DVD laser and CD laser. Press "FL Display" button for next page of FL Display (to show CD laser time).
In STOP (no disc) mode, press STOP " button on button on the player, and " the remote control unit. Cancelled automatically 5 seconds later. Shown to the left is DVD laser time, and to the right CD laser time. Time is shown in 4 digits of decimal notation in a unit of 10 hours. "0000" will follow "9999". T1_0000/0000 (display1/display2) While display Timer 1 data, press STOP " button on button on the player, and " the remote control unit. Cancelled automatically 5 seconds later. Shown to the left is DVD laser time, and to the right CD laser time. Time is shown in 4 digits of decimal notation in a unit of 10 hours.
Timer 1 reset
Timer 1 reset. Laser operation time of both DVD laser and CD laser is reset all at once.
Timer 2 check
Timer 2 check. Spindle motor operation timer. Press "FL Display" button for next page of FL Display. Time is shown in 5 digits of decimal notation in a unit of 10 hours. "0000" will follow "9999".
In STOP (no disc) mode, press STOP " button on button on the player, and " the remote control unit. Cancelled automatically 5 seconds later.
Timer 2 reset
Timer 2 reset. Spindle motor operation timer. Time is shown in 5 digits of decimal notation in a unit of 10 hours. It clears to "0000" upon reset.
While display Timer 2 data, press STOP " button on button on the player, and " the remote control unit. Cancelled automatically 5 seconds later.
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SA-VK750EE
10.2.2. DVD Self-Diagnostic Function Error Code
Error Code F010 Diagnosis Contents DVD Media disk Description of error A specification value is size from the PARENTAL LOCK value of the appointed country. There is no TT_SRPT. (RLBN is 0). Automatic FL Display Remarks Press [ ] on main unit for next error.
F020
DVD Media disk
Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F021
DVD Media disk
The number of TT_SRP is 0.
F022
DVD Media disk
A specification value. It is size from the number of TT_SRP. VTSN or in agreement with VTS_TTN. There is no SRP. A specification value. It is size from TT_SRP. PTT_Ns The number of TTU_SRP is 0.
F023
DVD Media disk
F024
DVD Media disk
F030
DVD Media disk
F031
DVD Media disk
A specification value. It is size from the number of TTU_SRP. The number of SRP1 is 0.
F040
DVD Media disk
F041
DVD Media disk
The number of PGCI_SRP is 0.
F042
DVD Media disk
A specification value. It is size from the number of PGCI_SRP. It is in agreement with Menu ID. There is no PGCI_SRP. The number of TMAP_SRP is 0.
F043
DVD Media disk
F050
DVD Media disk
F051
DVD Media disk
A specification value. It is size from the number of TMAP_SRP. Specification TMAP_SA is 0.
Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F052
DVD Media disk
F053
DVD Media disk
The number of MAP_EN is 0.
F060
DVD Media disk
Although C_POSIT exists, it is in PGC. There is no PGMAP. Although C_POSIT exists, it is in PGC. There is no PGMAP.
F061
DVD Media disk
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SA-VK750EE
Error Code F062
Diagnosis Contents DVD Media disk
Description of error A specification value inside of PGC. It is size from the number of PGes. Although C_POSIT exists, it is in PGC. There is no C_PBIT. Although C_POSIT exists, it is in PGC. The number of PGes is 0. Specification A cell number is 0.`
Automatic FL Display
Remarks Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F063
DVD Media disk
F064
DVD Media disk
F065
DVD Media disk
F066
DVD Media disk
A specification value inside of PGC. It is size from the number of Cell(s).
F067
DVD Media disk
A blocked cell is present.
Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F070
DVD Media disk
There is no NV_PACK data.
F080
DVD Media disk
Under reference. There is no Cell number. For [used as a DFD object] a user guide. A PGC control file < impossible. DFD main microcomputer. Compatibility with a DFD type < download is impossible. DFD download start. PGC reproduction error. Waiting for the completion of DFD download. PGC reproduction error. At the time of DFD download AVDEC.
F0E0
DVD Media disk
F0E1
DVD Media disk
F0E2
DVD Media disk
F0E3
DVD Media disk
F0E4
DVD Media disk
F0E5
DVD Media disk
It is the farm file lead error at the time of DFD download. DFD alteration check error of the read firmware. There is no farm file used as a DFD object and it is downloading needlessly.
F0E6
DVD Media disk
F0F0
DVD Media disk
F0F1
DVD Media disk
The firware which is in agreement with DFD download conditions < unnecessary. Big possibility of disc specification violation during highlight display Timeout when force initialization fails
Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F103
Illegal highlight Position
F4FF
Force initialize failure (time out)
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SA-VK750EE
Error Code F500
Diagnosis Contents DSC error
Description of error DSC (IC8251) stops in the occurrence of servo error (startup, focus error, etc.)
Automatic FL Display
Remarks Press [ ] on main unit for next error.
F501
DSC not Ready error
DSC-system computer communication error (Communication failure caused by idling of DSC) Similar as F500
Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F502
DSC Time out error
F503
DSC communication Failure Abnormal adjusting DSC data slice offset DSC Attention error
Communication error (result error occurred although communication command was sent)
F504
F505
Similar as F500
Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F506
Invalid media
Disc is flipped over, TOC unreadable, incompatible disc media Operation stopped because navigation data is not accessible caused by the demodulation defect Operation stopped caused by the request to access abnormal ID data
F600
F601
Access failure to management information caused by demodulation error Indeterminate sector ID requested
Press [ ] on main unit for next error.
F602
Access failure to LEAD- LEAD IN data unreadable IN caused by demodulation error Access failure to KEYDET caused by demodulation error ODC abnormality Access failure to CSS data of disc
Press [ ] on main unit for next error.
F603
Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F610
No permission for command execution
F611
No CRC OK for a specific time (CD) No CRC OK for a specific time (DVD) Laser safeguard: high temperature condition Laser safeguard: circuit failure condition MBX overflow
Access failure to seek address in CD series Access failure to ID data in DVD series
Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F612
F620
High temperature of the laser guide unit (OPU unit) Circuitry failure of the laser guide unit (OPU unit) When replying message to disc manager
F621
F700
F701
Message command does not end Message command changes
Next message is sent before replying to disc manager Message is changed before it is sent as a reply to disc manager
F702
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SA-VK750EE
Error Code F880
Diagnosis Contents Task number is not appropriate
Description of error Message coming from a non-existing task
Automatic FL Display
Remarks Press [ ] on main unit for next error.
F890
Sending message when Sending message to AV task message is being sent to AV task Message couldn't be sent to AV task Begin sending message to AV task
Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F891
F893
FLASH ROM IC problem FLASH ROM IC installed is not operating properly (Neccessary replacement of FLASH ROM IC) or firmware problem EEPROM abnormality EEPROM IC installed is not operating in normal condition (EEPROM contains neccessary data) Firm version agreement check for factory preset setting failure prevention. Check region setting & re-initialize Firm version agreement check for factory preset setting failure prevention Initialize completion check for factory preset setting failure prevention Unsuitable combination of AV DECORDER, SDRAM and FLASH ROM (firmware) Message command is not suitable
F894
Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error. Press [ ] on main unit for next error.
F895
Region setting abnormality No existence model
F896
F897
Initialize is not completed Disagreement of hardware and software
F898
F8A0
Message command is not appropriate
Press [ ] on main unit for next error.
Note: An error code will be canceled if a power supply is turned OFF. *1: CPPM is the copy guard function beforehand written in the disk for protection of copyrights.
10.2.3. Optical Pickup Breakdown Diagnosis
This unit is equipped with the optical pickup self-diagnosis function and the tilt adjustment check function. Follow the procedure described below during repair in order to perform self-diagnosis and tilt adjustment effectively. Especially when "NO DISC" is displayed, be sure to apply the self-diagnosis function before replacing with an optical pickup. Replacement of optical pickup generally requires when the present value of laser drive exceeds 45 (DVD) or 45 (CD). Note: Start diagnosis within three minutes after turning on the power (as diagnosis fails when the unit becomes warm).
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10.3. Special Mode Table 2
Mode Name Self -Diagnostic Mode Item Description To enter into self diagnostic checking for main unit. FL Display Key Operation Front Key 1. Select [ ] for DVD/CD mode.
(Ensure no disc is inserted into the drive unit.) 2. Press and hold [ seconds follow by [ To exit, press unit or remote control. In Self-Diagnostic Mode: 1. Select [ ] button for 3 ]. button on main
CD Changer Reliability Test (CRS1D)
To determine the reliability of CD/DVD Changer Unit. (For more infomation, refer to section 10.3.2.)
] for CD mode.
2. Press [1] on remote control.. button on main To exit, press unit or remote control. (The tray will return to PLAY position and then power off)
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SA-VK750EE
Mode Name Doctor Mode
Item Description To enter into "Doctor Mode" for purpose of checking various functions of the main unit (Example: Micro-p Firmware version & EEPROM IC check etc)
FL Display 1. FL will light up for all segments
Key Operation Front Key In CD mode: 1. Press [ ] button on main unit follow by [4] and [7] on remote control. (Ensure no disc is inserted into drive unit.) To exit, press [ENTER] button on remote button on main unit control or or remote control. Note: In firmware version & checksum data (EEPROM IC) displayed when the buttons is pressed twice.
2. Device display
3.
4. In doctor mode (under CD mode)
1. All segments will light up for 1 second. Cold Start Initialize backup data and start the micro-processor. In doctor mode: 1. Press [4] on remote control. To exit, press [ENTER] button on remote button on main unit control or or remote control. In doctor mode: button on remote 1. Press control.
FL Display Test
To check the segments display segments will light up LED will blink at second interval)
FL (All and 0.5
Tape Eject Test
To check on the tape Both deck will be eject automatically. eject function (For deck 1/2) Firmware version To display the micro- 1. Firmware version display & the EEPROM. check & processor firmware EEPROM IC version & checksum date Information when there is an EEPROM IC istalled
In doctor mode: 1. Press [0] button on remote control. In doctor mode: ] button on main unit 1. Press [ follow by [4] and [7] on remote control. To exit, press [ENTER] button on remote button on main unit control or or remote control. Refer to Section 10.3.1 for more information.
Firmware version To display the firmware checking (For version for the DVD DVD Module) Module (Firmware is loaded to FLASH ROM IC)
In doctor mode: 1. Press [ ] button on main unit follow by [CANCEL] on remote control. To exit, press [ENTER] button on remote button on main unit control or or remote control.
10.3.1. EEPROM Checksum (ROM Correction)
Purpose: To check for microprocessor firmware version and EEPROM checksum (ROM correction). Below are the procedures for this mode. Step 1: Enter into Doctor mode (for more information, refer to section 10.3 on the key operation to enter into this mode. Step 2: Check for firmware version and EEPROM checksum (By pressing STOP button on main unit followed by "4" and "7" on remote control). · When entering into DOCTOR MODE, the firmware version and checksum data of EEPROM (if applicable) will appear on FL
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SA-VK750EE
display. Below is the information on the EEPROM IC (ROM correction) under 3 possible situations: 1. In the case that the correction point existence data is other than 0 (ie. correction file exists), EEPROM checksum display for the microprocessor shall be made after calculating checksum by summing up the content of data area from EEPROM IC.
2. In the case when no EEPROM IC is installed. It is display as below (no display of checksum data)
3. In cases that the filename is different even though a EEPROM is installed, or no correction file exists, [NG] shall be displayed (the correction point existence data is set to 0 at this condition).
Note: Microprocessor firmware refers to version number for microprocessor IC located on PANEL P.C.B.. It is subject to change which would be updated accordingly. ROM correction checksum refers to the HEX code that is displayed upon key buttons pressed if an EEPROM is loaded in the unit.
10.3.2. CD/DVD changer unit ageing test mode
Below is the process flow chart of ageing for the CD/DVD changer unit. (CRS1D)
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10.3.3. Error Code Table
Self-Diagnosis Function (refer Section 10.3) provides information on any problems occuring for the unit and its respective components by displaying the error codes. These error code such as U**, H** and F** are stored in memory and held unless it is cleared. The error code is automatically display after entering into self-diagnostic mode.
Error Code H01 Diagnosis Contents Description of error Mode SW, plunger The tray is not able to and capstan motor open. abnormal Rec INH SW abnormal HALF SW abnormal (Spindle servo, DSC (IC8251) Spindle motor, CLV servo error) (Traverse IC8251) motor, Automatic FL Display Remarks For deck mechanism unit (For deck 1/2). Press [ ] on main unit for next error. For deck mechanism unit (For deck 2). ] on main unit for Press [ next error. For deck mechanism unit (For deck 1/2). ] on main unit for Press [ next error. For DVD unit (For Traverse). Press [ ] on main unit for next error. For DVD unit (For Traverse). ] on main unit for Press [ next error.
H02
H03
F15
RESET SW abnormal Transmission error between CD Servo LSI IC and microprocessor IC
REST SW: ON is not detected within the specified time. When set to CD mode, the sense signal does not turn "Low", a fail safe time after system command transmission is sent.
F26
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SA-VK750EE
Error Code F61
IHMS
Diagnosis Contents Description of error Power Amp IC output Upon power on, abnormal PCONT=HIGH, DCDET=L after checking LSI. Cam gear Cam gear does not abnormality rotate to "HOME" position.
Automatic FL Display
Remarks For power. Press [ next error.
] on main unit for
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
ICSL
Cam gear/gear units abnormal
Cam gear does not rotate to "PLAY" driving position and hence does not drive playing tray to "STOCK" position.
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
ISTK
Drive rack/gear assembly abnormal
The tray drive rack does not move to "STOCK" position. (Tray does not move to "STOCK" position)
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
IPLY
Drive rack/gear assembly abnormal
The tray drive rack does not move to "PLAY" position. (Tray does not move to "PLAY" position)
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
ITOP
UD assembly
UD Rack does not move to front direction. This lead to UD base not raise to top position.
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
IUDS
UD assembly
After TOP SW is detected, UD rack does not move into tray 1 position.
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
HOME
Cam gear/gear assembly abnormal
Cam gear does not move to "HOME" position under following conditions 1. After tray is load to "PLAY" position. 2. After tray is unload to "STOCK" position.
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
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SA-VK750EE
Error Code LOAD
Diagnosis Contents Description of error Tray drive assembly Tray unit does not move abnormal from "STOCK" to "PLAY" position
Automatic FL Display
Remarks For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
PDRV
Cam gear/gear assembly abnormal
Cam gear does not move from "HOME" to "PLAY" drive position.
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
UDU
UD base asssembly abnormal
UD Base assembly does not move upwards from tray 5 to tray 2 UD Base assembly does not move downwards from tray 1 to tray 5. UD Base assembly does not move to tray 1.
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error. For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error. For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error. For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
UDD
UD base asssembly abnormal
UD1
UD base asssembly abnormal
F1NG
Fail - safe mode. (For When the tray open open/close tray operation is performed, it unit(s)) fails to open. It will automatically close all trays after the time-out by the microprocessor. During this time when it fails, the error code will appear. Fail - safe mode. (For When the tray close open/close tray operation is performed, it unit(s)) fails to close. It will automatically open all trays after the time-out by the microprocessor. During this time when it fails, the error code will appear. To unlock the traverse unit for service 1. All trays set to "STOCK" position 2. Mechanism tray 5 set to to
F2NG
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
SRVC_TRV
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit.
3. Cam gear set "HOME" position
RSET
Cam gear jam/close sensor faulty
During tray re-open, the cam gear will rotate in the opposite direction to reset the cam gear position. When it fails, the error code will appear.
For CD/DVD changer unit (CRS1D). Press [SINGLE CHANGE] on main unit for next error.
CRS1D Error Code display 1. The errors that occured in CRS1D Mechanism can be recalled and displayed, in the order of the occurence under selfdiagnostic (Refer to Section 10.3 for procedures to enter this mode. · Only the first 5 errors will be memorized (in backup memory). The subsequence error shall be ignored and not memorize.
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SA-VK750EE
For system with EEPROM as memory backup,memory space in EEPROM is neccesary. 2. To display all error code memorized In CRS1D Self-Diagnostic mode, press [SINGLE CHANGE] to display subsequence error code. It shall repeat after reaching error no. 5. e.g.: [1 _ _ _ _ I H M S] [SINGLE CHANGE] [2 _ _ _ _ I T O P] [SINGLE CHANGE] [3 _ _ _ _ H O M E] [SINGLE CHANGE] [4 _ _ _ _ L O A D] [SINGLE CHANGE] [5 _ _ _ _ _ U D D] [SINGLE CHANGE] 3. To clear the error code memory In CRS1D Self-Diagnostic mode, long press [SINGLE CHANGE] key (2s or more)
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SA-VK750EE
11 Assembling and Disassembling
11.1. Caution
Special Note: This model uses a new CD/DVD changer unit CRS1D. In this following section does not contain the necessary disassembly & assembly information for the CD/DVD changer unit (CRS1D) except the disasembly & assembly of traverse unit. Kindly refer to the original service manual for the CD/DVD changer unit. (Order No. MD0603065A3). "ATTENTION SERVICER" Some chassis components may have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. 2. For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required. 3. Select items from the following index when checks or replacement are required. 4. Refer to the Parts No. on the page of "Parts Location and Replacement Parts List" (Section 25), if necessary. Warning :This product uses a laser diode. Refer to caution statement Precaution of Laser Diode. Caution: After replacing of CD/DVD Changer Unit, ageing test is necessary. Please confirm operation for CD/DVD Changer Unit.
Below is the list of disassembly sections · Disassembly of Top Cabinet · Disassembly of CD/DVD Changer Unit · Disassembly of Rear Panel · Disassembly of Main P.C.B. · Disassembly of Front Panel Unit · Disassembly of Digital Amp P.C.B. · Replacement for Power Amp IC (Digital Amp P.C.B.) · Disassembly of SMPS P.C.B. · Replacement of Power Amp IC (SMPS P.C.B.) · Disassembly of Panel P.C.B., Mic P.C.B. & Tact Switch P.C.B. · Disassembly of Deck Mechanism Unit · Disassembly for Deck P.C.B. · Disassembly of Traverse Unit · Disassembly of Optical Pickup Unit (CD/DVD Mechanism) · Disassembly of Deck Mechanism · Replacement for cassette lid · Rectification for tape jam problem
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SA-VK750EE
11.2. Disassembly flow chart
The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing. To assemble the unit, reverse the steps shown in the chart as below.
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11.3. Main Parts Location
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11.4. Disassembly of Top Cabinet
Step 1 Remove 3 screws at each side and 5 screws at rear panel. Step 2 Lift up both sides of the top cabinet, push the top cabinet towards the rear to remove the top cabinet.
11.5. Disassembly of CD/DVD Changer Unit (CRS1D)
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet Step 1 Remove 2 screws at rear panel.
Step 2 Detach the FFC cables (CN2038 & CN2036).
Step 3 Release the claws on both ends.
Step 4 Lift the CD/DVD changer unit upwards to remove it.
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SA-VK750EE
· Disassembly of Mecha Chassis
Step 5 Remove 2 screws. Step 6 Remove the Mecha Chassis. Note: For disassembly & assembly of traverse unit, please refer to section 11.16 of this service manual. Please refer to original Service Manual for the Disassembly and Assembly of the CD/DVD Changer Unit (CRS1D), section 5.
11.6. Disassembly of Rear Panel
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit Step 1 Remove 9 screws. Step 2 Remove 2 screws at Speaker P.C.B.. Step 3 Detach the fan connector CNP2913 from Main P.C.B.. Step 4 Remove rear panel.
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11.7. Disassembly of Main P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit · Follow the (Step 1) - (Step 4) of Item 11.6 - Disassembly of Rear Panel Step 1 Disconnect FFC cables (CNP2101, CNP2601 and CNP2602). Step 2 Detach CNP2710). 3 connectors (CNP2810, CNP2370 &
Step 3 Remove Main P.C.B.
11.8. Disassembly of Front Panel Unit
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit Step 1 Disconnect connectors (CN2602, CNP2601, CNP2101 and CN5904).
Step 2 Bent the front panel unit slightly forward as shown. Step 3 Release 2 claws.
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SA-VK750EE
Step 4 Remove the front panel unit. Note: Ensure 2 claws located at the bottom chassis is seated into the 2 slots at bottom of front panel at 2 catches (one on each side) of bottom chassis to be aligned to front panel's slot. Assembly is secured upon hearing clicking sound.
11.9. Disassembly of Digital Amp P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit · Follow the (Step 1) - (Step 4) of Item 11.6 - Disassembly of Rear Panel · Follow the (Step 1) - (Step 3) of Item 11.7 - Disassembly of Main P.C.B. · Follow the (Step 1) - (Step 4) of Item 11.8 - Disassembly of Front Panel Unit Step 1 Detach cable CN5604. Step 2 Disconnect connector CN5502. Step 3 Remove the 3 screws on Digital Amp P.C.B.. Step 4 Remove Digital Amp P.C.B.. Note: Make sure P.C.B. slot insert to bottom chassis guide.
11.10. Replacement for Power Amp IC (Digital Amp P.C.B.)
· Follow the (Step 1) - (Step 3) of Item 11.11 - Disassembly of Digital Amp P.C.B. Replacement of Power Amp IC (IC5100) Step 1 Remove IC clip. · IC5100 Step 2 Flip over the P.C.B..
Step 3 Desolder Power Amp IC IC5100. Step 4 Remove the Power Amp IC. Replacement of Power Amp IC (IC5300 & IC5400)
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Repeat (Step 1) - (Step 3) of Item 11.11 for removal of IC5300 & IC5400.
11.11. Disassembly of SMPS P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit · Follow the (Step 1) - (Step 4) of Item 11.6 - Disassembly of Rear Panel · Follow the (Step 1) - (Step 3) of Item 11.7 - Disassembly of Main P.C.B. · Follow the (Step 1) - (Step 4) of Item 11.8 - Disassembly of Front Panel Unit Step 1 Disconnect connector (CN5502 at Digital Amp P.C.B.). Step 2 Remove 2 screws.
11.12. Replacement of Power Amp IC (SMPS P.C.B.)
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit · Follow the (Step 1) - (Step 4) of Item 11.6 - Disassembly of Rear Panel · Follow the (Step 1) - (Step 3) of Item 11.7 - Disassembly of Main P.C.B. · Follow the (Step 1) - (Step 4) of Item 11.8 - Disassembly of Front Panel Unit Step 1 Remove 1 screw.
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· Relacement of Regulator Diodes Step 1 Desolder D5904 & D5905.
Step 2 Flip over the SMPS PCB. Step 3 Desolder IC5701. Step 4 Remove IC5701.
11.13. Disassembly of Panel P.C.B., Mic P.C.B. & Tact Switch P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit · Follow the (Step 1) - (Step 4) of Item 11.8 - Disassembly of Front Panel Unit Step 1 Remove 1 screw.
Step 2 Disconnect connector CN6701 at Mic P.C.B.. Step 3 Lift up the Mic P.C.B to remove it. Step 4 Remove 6 screws. Step 5 Release 2 catches. Step 6 Remove Panel P.C.B..
11.13.1. Disassembly of Tact Switch P.C.B.
Step 7 Remove the Volume knob.
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11.13.2. Disassembly of Lid
Step 1 Lift the spring sideward.
Step 8 Remove 6 screws..
Step 2 Remove Lid. Note: Do not misplace the spring.
11.14. Disassembly of Deck mechanism unit
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit · Follow the (Step 1) - (Step 4) of Item 11.8 - Disassembly of Front Panel Unit Step 1 Detach FFC cable (CN971). Step 2 Disconnect FFC cable (CN1001). Step 3 Remove the 5 screws. Step 4 Push the lever upward, and then open the cassette lid ass'y (For DECK1 and DECK2).
Step 5 Tilt the cassette mechanism unit in the direction of arrow (1), and then remove it in the direction of arrow (2). Note: For disassembly of parts for deck mechanism unit, refer to Section 11.18.
11.15. Disassembly of Deck P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit · Follow the (Step 1) - (Step 4) of Item 11.8 - Disassembly of Front Panel Unit Step 1 Remove 2 screws.
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Step 2 Desolder wire at deck motor terminals (W1002).
Step 3 Remove Deck P.C.B.
11.16. Disassembly of Traverse Unit
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit Important notes: Ensure all the trays are in the "STOCK" position before proceeding to the disassemble of traverse unit. For procedures to set the trays in "STOCK" position, please refer to original Service Manual for CRS1D, Section 4.3. Setting the trays in "STOCK" position, Order No. MD0603065A3.
· Assembly of Traverse Unit
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11.17. Disassembly of optical pickup unit (CD/DVD mechanism)
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit · Follow the (Step 1) - (Step 2) of Item 11.16 - Disassembly of Traverse Unit Step 1 Pull out FFC.
Step 3 Remove 4 pins.
Step 2 Widening the catch, push the pin in.
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Step 8 Remove the catch of the drive rack, and take out the drive rack.
Step 4 Remove the traverse deck. Note: As floating springs (4 pieces) come off at the same time, be careful not to lose them.
Step 5 Remove 4 screws. Step 6 Remove the DVD Servo P.C.B. and turn it over. Note: Insert a short pin into FFC of the optical pickup. Step 7 Rotate the traverse deck (B) to the arrow direction and shift the optical pickup to the furthest backward. Step 9 Place the convex part of an optical pickup to the concave part of a traverse base, then take out the optical pickup.
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11.18. Disassembly of Deck Mechanism
· Follow the (Step 1) - (Step 2) of Item 11.4 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 11.5 - Disassembly of CD/DVD Changer Unit · Follow the (Step 1) - (Step 4) of Item 11.8 - Disassembly of Front Panel Unit · Follow the (Step 1) - (Step 5) of Item 11.14 - Disassembly of Deck Mechanism Unit