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ORDER NO. MD0707020CE
CD Stereo System
SA-AK860GCP
Colour (K)... Black Type
Notes: This model's CD mechanism changer unit is CRS1. Please refer to the original Service Manual (Order No. MD0509368C0) for this mechanism.
Specifications
I AMPLIFIER SECTION RMS output power Front Ch Subwoofer Ch Total RMS Dolby Digital Mode power PMPO output power I FM/AM TUNER, TERMINALS SECTION Preset station FM 20 stations AM 15 stations Frequency Modulation (FM) Frequency range Sensitivity S/N 26 dB Antenna terminal(s) Amplitude Modulation (AM) Frequency range 522 to 1629 kHz (9 kHz step) 520 to 1630 kHz (10 kHz step) Sensitivity S/N 20 dB (at 999 kHz) Phone jack Terminal MIC jack Stereo, 3.5 mm jack 1000 µV/m 87.50 to 108.00 MHz (50 kHz step) 4.0 µV (IHF) 2.2 µV 75 (unbalanced) 210 W per channel (7 ), 1 kHz, 10% THD 240 W per channel (7 ), 1 kHz, 10% THD 660 W 7200 W Sensitivity Terminal Music Port (Front) Sensitivity Terminal USB Port USB standard Media file format support USB device file system USB port power I CASSETTE DECK SECTION Track system Heads Record/playback Erasure Motor Recording system Erase system Tape speed Overall frequency response (+3 dB, -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-WTD) 0.18% (WRMS) Approx. 120 seconds with Solid permalloy head Double gap ferrite head DC servo motor AC bias 100 kHz AC erase 100 kHz 4.8 cm/s 4 track, 2 channel USB 2.0 full speed MP3 (*.mp3) FAT12, FAT16, FAT32 500 mA (Max) 100 mV, 4.7 k Stereo, 3.5 mm jack 0.7 mV, 1.2 k Mono, 3.5 mm jack (1 system)
© 2007 Matsushita Electric Industrial Co. Ltd.. All rights reserved. Unauthorized copying and distribution is a violation of law.
SA-AK860GCP
C-60 cassette tape I DISC SECTION Disc played [8 cm or 12 cm] CD, CD-R/RW (CD-DA, MP3 *) *MPEG-1 Layer 3, MPEG-2 Layer 3 Pick up Wavelength Laser power Audio output (Disc) Number of channels (FL, FR, SW) 2.1 ch 785 nm CLASS 1
Dimensions (W x H x D) Mass Operating temperature range Operating humidity range Power mode consumption in standby
250 x 331.5 x 358 mm 8.1 kg +5 to +35°C 5 to 90% RH (no condensation) 0.99 W (Approx.)
I SYSTEM SC-AK860 (GCP) Music center: SA-AK860 (GCP) Front speakers: SB-PF960 (GCP) Subwoofer: SB-WAK860 (GCP) For Information on speaker system, plesae refer to the original Service Manual (Order No. MD0707024CE) for SB-PF960GCP-K & (Order No. MD0707022CE) for SB-WAK860GCP-K. This model uses CRS1 mechanism (CD changer mechanism) Note: 1. Specifications are subject to change without notice. Mass and dimensions are approximate. 2. Total harmonic distortion is measured by the digital spectrum analyzer.
Audio performance (measurement at: CD out terminal) Frequency response (CD-Audio) S/N ratio (CD-Audio) Dynamic range (CD-Audio) Total harmonic dist. (CD-Audio) I GENERAL Power supply Power consumption AC 110 to 127/220 to 240 V, 50/60Hz 200 W 4 Hz to 20 kHz 95 dB 93 dB 0.005%
CONTENTS
Page
1 Safety Precautions 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 3 Precaution of Laser Diode 4 Handling Precautions For Traverse Unit 5 Handling the Lead Free Solder 6 Accessories 7 Operation Procedures 8 New Features 9 Self diagnosis and special mode setting 10 Assembling and Disassembling 11 Service Position 5 6 7 9 10 11 13 15 25 50 3 12 Adjustment Procedures 13 Voltage Measurement & Waveform Chart 14 Wiring Connection Diagram 15 Block Diagram 16 Notes Of Schematic Diagram 17 Schematic Diagram 18 Printed Circuit Board 19 Illustration of IC's, Transistors and Diodes 20 Terminal Function of IC's 21 Troubleshooting Flowchart (CD Section Circuit) 22 Exploded Views 23 Replacement Parts List
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56 58 63 65 73 75 89 97 98 101 103 107
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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, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly installed. 3. After servicing, check for leakage current checks to prevent 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. Using an ohmmeter measure the resistance value, 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 5.2. When the exposed metal does not have a return path to the chassis, the reading must be .
1.1.2.
Leakage Current Hot Check
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 capacitors, 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. should the measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is returned to the customer.
Fig. 1
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1.2.
Before Use
will be used. (If the power supply in your area is 110V or 120V, set to the "127V" position.) Note that this unit will be seriously damaged if this setting is not made correctly. (There is no voltage selector for some countries, the correct voltage is already set.)
Be sure to disconnect the mains cord before adjusting the voltage selector. Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit
1.3.
Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C5104, C5171, C5172, C5920, C5940 and C5950 through a 10, 1W 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 110 - 127 V, at 60 Hz in NO SIGNAL mode (at volume min in CD mode) should be ~500 mA. · Current consumption at AC 220 - 240 V, at 50 Hz in NO SIGNAL mode (at volume min in CD mode) should be ~350 mA.
1.4.
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: 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.
1.5.
Safety Part Information
Safety Parts List: in the There are special components used in this equipment which are important for safety.These parts are marked by Schematic Diagrams & Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of manufacturer.
Table 1 Reference No. F1 F2 JK5950 T5950 T5951 A2 RL5950 L5950 Z5950 S5950 360 FP5950 Part No. K5D502BLA013 K5D312BLA015 K2AA2B000011 G5CYBYY0 0006 G4C2AAJ00005 K2CQ2CA00006 K6B1AEA00003 ELF15N035AN ERZV10V511CS K0ABLB000003 RAE0165A-V K5G402AA0002 Part Name & Description FUSE FUSE JK AC INLET MAIN TRANSFORMER SUB TRANSFORMER AC CORD PC POWER RELAY LINE FILTER ZENER SW VOLTAGE SELECTOR TRAVERSE UNIT FUSE PROTECTOR Remarks [M] [M] [M] [M] [M] [M] [M] [M] [M] [M] [M] [M]
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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-equiped 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 equiped 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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3 Precaution of Laser Diode
CAUTION: This unit utilizes a class 1 laser diode in the optical pickup unit. Invisible laser radiation is emitted from the optical pickup lens. Wavelength: 785 nm When the unit is turned on: 1. Do not look directly into the pick up lens. 2. Do not use optical instruments to look at the pick up lens. 3. Do not adjust the preset variable resistor on the pickup lens. 4. Do not disassemble the optical pick up unit. 5. If the optical pick up is replaced, use the manufacturer's specified replacement pick up only. 6. Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. 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.
I Use of Caution Labels
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4 Handling Precautions For Traverse Unit
The laser diode in the traverse uint may break down due to potential difference caused by the static electricity of clothes or our human body. So, be careful of electrostatic breakdown during repair of the traverse unit. · Way of handling the traverse unit 1. Do not subject the traverse unit to static electricity as it is extremely sensitive to electrical shock. 2. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board). 3. Do not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, finish the job in as short time as possible. 4. Do not turn the variable resistor for laser power adjustment. (It is pre-adjusted during production time)
Fig 4.1
Grounding for electrostatic breakdown prevention 1. Human body grounding Use the anti-static wrist strap to discharge the static electricity from your body. 2. Work table grounding Put a conductive material (sheet) or steel sheet on the area where the traverse unit is place, and ground the sheet. Caution : The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the traverse unit. Caution when replacing the Traverse Unit The traverse unit has a short point shorted with solder to protect the laser diode against electrostatics breakdown. Be sure to remove the solder from the short point before making connections.
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Fig 4.2
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5 Handling the Lead Free Solder
5.1. 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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6 Accessories
Note : Refer to Replacement Parts List (Section 23) for the part number.
Remote Control
AC Cord
FM Indoor Antenna
AM Loop Antenna
Power Plug Adaptor
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7 Operation Procedures
7.1. Main Unit Key Buttons Operation
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7.2.
Remote Control Key Buttons Operation
7.3.
Disc Information
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8 New Features
8.1. Using the Music Port and Connecting & Playing a USB Mass Storage Class Device
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9 Self diagnosis and special mode setting
This unit is equipped with features of self-diagnostic & special mode setting for checking the functions & reliability.
9.1.
Service Mode Summary Table
The service modes can be activated by pressing various button combination on the main unit and remote control unit.Below is the summary for the various modes for checking:
Player button [ ] Remote control button unit [4], [7] Application Entering into Doctor Mode Note Refer to the section, "9.2.1 Service Mode Table 1 for more information. Note Refer to the section, "9.2.1 for more information. Refer to the section, "9.2.2 for more information. Refer to the section, "9.2.3 for more information. Refer to the section, "9.2.2 for more information. Refer to the section, "9.2.2 for more information. Refer to the section, "9.2.2 for more information. Refer to the section, "9.2.3 for more information.
Mode In Doctor Mode
Remote control button unit [ ], [4]+[7]
Application Display firmware version & EEPROM checksum
[4]
Set for cold start when reset start is executed the next time
[Muting]
Clock Setting
[0]
Tape Eject Test
[DIMMER]
All segment display for the FL
[DISC]
CRS1 Inspection
[7] [8] [9]
Volume 50 Setting check Volume 41 Setting check Volume 35 Setting check
9.2.
9.2.1.
Service Mode
Service Mode Table 1
Item Description To enter into self diagnostic checking for main unit. FL Display Key Operation Front Key 1. Select [TAPE, ] for TAPE mode (Ensure no TAPE inserted). 2. Press and hold [STOP, I] button follow by ]. [ To exit, press [ , POWER] button on main unit or remote control.
Mode Name Self -Diagnostic Mode
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Mode Name Doctor Mode
Item Description To enter into Doctor (Display 1) Mode for checking of various items and displaying EEPROM and firmware version. Note: The microprocessor version as shown is an example. It will be revise when there is an updates. FL display sequence Display 1 2
FL Display
Key Operation Front Key In CD Mode: 1. Press [STOP, I] button on main unit follow by [4] and [7] on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control.
1. The Check Sum of EEPROM and firmware version will be display * ROM correction. ** Firmware version No: checksum : (Condition 1)
(a) If there is NO EEPROM header string OR (b) If there is no EEPROM ( no data is received by micro-processor) [NO] is displayed. checksum : (Condition 2)
If the version of the EEPROM does not match or not working properly [NG] is display. checksum : (Condition 3)
If the EEPROM version matches, checksum [YYYY] is displayed. (Display 2)
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9.2.2.
Service Mode Table 2
Item Description Checking of CD Operation. FL Display Key Operation Front Key In CD mode: 1. Select [CD,
Mode Name CD Test Mode
/ ] for CD mode.
2. Press and hold [STOP, I] button follow by ]. [ , POWER] button on main To exit, press [ unit or remote control. In CD Test mode: 1. Press [0] button on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control.
CD Auto Adjustment
To check the CD auto adjustment result for FLOCK, TLOCK and CLVS. FLOCK: Focus Lock. TLOCK: Traverse Lock. CLVS: Constant Linear Velocity Speed.
CD Changer Reliability Test (CRS 1)
To determine the reliability of CD Loading Unit. (For more information, refer to section 9.2.4)
In Self-Diagnostic mode: 1. Select [CD, / ] for CD mode. 2. Press [ ] button.
Service Mode To unlock the traverse (For traverse unit) unit for service. FL display sequence Display 1 2
(Display 1)
, POWER] button on main To exit, press [ unit or remote control. (The tray will return to PLAY position and then power off) In TAPE mode: 1. With no cassette tape inserted. 2. Press [STOP, I], [ unit. ] button on main
3. Press [SINGLE CHANGE] on main unit. , POWER] button on main To exit, press [ unit or remote control. (Display 2)
CD changer unit To check the function Open / Close Test operation of changer unit. (For more information refer to 9.2.4)
In doctor mode: 1. Press [DISC] button on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control. In doctor mode: 1. Press [0] button on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control. In doctor mode: 1. Press [DIMMER] button on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control. In doctor mode: 1. Press [4] button on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control.
Tape Eject Test
To check on the tape eject function (For deck 1/2)
FL Display Test
To check the FL segments display (All segments will light up and LED will blink at 0.5 second interval) To activate cold start upon next AC power up.
Cold Start
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9.2.3.
Service Mode Table 3
Item Description To indicate that a clock time was set properly. FL Display Key Operation Front Key In doctor mode: 1. Press [MUTING] button on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control.
Mode Name Clock Setting Check
Volume Setting
To check for volume setting during this mode.
Display 1
In doctor mode: 1. Press [7] button on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control.
Display 1
In doctor mode: 2. Press [8] button on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control.
Display 1
In doctor mode: 3. Press [9] button on remote control. To exit, press [ENTER] button on remote , POWER] button on main control or press [ unit or remote control.
9.2.4.
Reliability Test Mode (CRS1 Mechanism)
Below is the process flow chart of ageing for the CD changer unit. (CRS1)
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9.3.
Error code Table Display
Self-Diagnosis Function (refer Section 9.2) 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.
9.3.1.
Error Code Table for Deck Mechanism
Description of error Detection of switch for "On" when the deck mechanism is in the driving mode. Detection time at 1.6ms in 6 times interval Automatic FL Display Remarks For Deck Mechanism Unit (Deck 1/2) ] on main unit for Press [ next error. To exit, press [POWER] button on main unit. Normal operation shall executed upon next powering on of the main unit. For Deck Mechanism Unit (Deck 1/2) ] on main unit for Press [ next error. To exit, press [POWER] button on main unit. Normal operation shall executed upon next powering on of the main unit. For Deck Mechanism Unit (Deck 1/2) Press [ ] on main unit for next error. To exit, press [POWER] button on main unit. Normal operation shall executed upon next powering on of the main unit. For Deck Mechanism Unit (Deck 1/2) ] on main unit for Press [ next error. To exit, press [POWER] button on main unit. Normal operation shall executed upon next powering on of the main unit. For Deck Mechanism Unit (Deck 1/2) Press [ ] on main unit for next error. To exit, press [POWER] button on main unit. Normal operation shall executed upon next powering on of the main unit.
Error Code Diagnosis Contents H01 Mode switch abnormal (Plunger and capstan motor)
H02
REC_INHFswitch abnormal
H03
F01
Detection of switch for presence of the FORWARD recording tab when a cassette is loaded into the deck. Detection time is 20ms at 2 times interval. HALF switch Detection of switch for "ON" abnormal state when a casstte is loaded into the deck. Detection time is 20ms at 2 times interval. When no cassette is loaded, it shall be in "OFF" state Reel pulse abnormal Detection of switch for the reel pulse signal toggling between high and low.
F02
TPS abnormal
Tape position detection signal. It is abnormal condition when the tape ends before the checking is completed
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9.3.2.
Error Code Table For CD Changer Block
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9.3.3.
Error Code Table For Power Supply
9.3.4.
CRS1 Error Code display
CRS1 Error Code display 1. The errors that occured in CRS1 Mechanism can be recalled and displayed, in the order of the occurence under self-diagnostic 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. For system with EEPROM as memory backup,memory space in EEPROM is neccesary. 2. To display all error code memorized In CRS1 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 CRS1 Self-Diagnostic mode, long press [SINGLE CHANGE] key (2s or more)
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10 Assembling and Disassembling
"ATTENTION SERVICER" Be careful when disassembling and servicing. Some chassis components may have sharp edges. Special Note: 1. This model uses a CD changer mechanism unit (CRS1). In this following section does not contain the necessary assembly and disassembly information except the assembly and disassembly of the traverse unit. Kindly refer to the original service manual for the CD changer mechanism unit. (Order No. MD0509368C0). 2. This section describes the disassembly procedures for all the major printed circuit boards and main components. 3. Before the disassembly process was carried out, do take special note that all safety precautions are to be carried out. (Ensure that no AC power supply is connected during disassembling.) 4. For assembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required. 5. The Switch Regulator IC may have high temperature after prolonged use. 6. Use caution when removing the top cabinet and avoid touching heat sinks located in the unit.
7. Select items from the following index when checks or replacement are required. · Disassembly of Top Cabinet · Disassembly of CD Changer Unit (CRS1) · Disassembly of Subwoofer Interface P.C.B · Disassembly of Rear Panel · Disassembly of Transformer P.C.B · Disassembly of Main P.C.B · Disassembly of Sub Power P.C.B · Replacement of Regulator IC (IC5101) · Replacement of Regulator Transistor (Q5111) · Replacement of Regulator Transistor (Q5112) · Replacement of Regulator Transistor (Q5105) · Replacement of Regulator Transistor (Q5106) · Disassembly of Power P.C.B · Replacement of Digital-Amp IC (IC5200) · Replacement of Digital-Amp IC (IC5000) · Replacement of Digital-Amp IC (IC5400) · Disassembly of Front Panel · Disassembly of USB P.C.B · Disassembly of Panel P.C.B, Remote Sensor P.C.B & Sub Panel P.C.B · Disassembly of Deck Mechanism Unit · Disassembly for Deck P.C.B · Disassembly of Deck Mechanism · Disassembly of Traverse Unit · Disassembly CD Lid · Disassembly Cassette Lid · Rectification for Tape Jam Problem
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10.1. 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 below.
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10.2. Main Parts Location Diagram
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10.3. Disassembly of Top Cabinet
Step 1 : Remove 3 screws on Top Cabinet (L) side.
Step 5 : Push the Top Cabinet backwards to release catches. Step 6 : Remove Top Cabinet.
10.4. Disassembly of CD Changer Unit (CRS1)
· Follow the (Step 1) - (Step 6) of Item 10.3
Step 2 : Remove 3 screws on Top Cabinet (R) side.
Step 1 : Remove 1 screw.
Step 3 : Remove 5 screws. Step 4 : Lift the both sides of Top Cabinet outwards.
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Step 2 : Release the claws outwards on both ends.
Step 3 : Lift up the CD changer unit upwards.
Step 7 : Remove 2 screws. Step 8 : Remove the CD changer mechanism as arrow shown. Note: For disassembly & assembly of traverse unit, please refer to section 10.25 of this service manual. Please refer to original Service Manual for the Disassembly and Assembly of the CD Changer Unit (CRS1).
10.5. Disassembly of Subwoofer Interface P.C.B
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4
Step 4 : Detach FFC cable at the connectors (CN2805 & CN2801) on Main P.C.B. Step 5 : Detach cable at the connector (CN2812) on Main P.C.B. Step 6 : Remove CD changer unit (with chassis). · Disassembly of CD changer mechanism Step 1 : Upset the CD changer mechanism.
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Step 2 : Remove 8 screws. Step 3 : Release 2 catches. Step 4 : Remove Rear Panel.
Step 2 : Release 2 catches and remove Subwoofer Interface P.C.B as arrow shown.
10.7. Disassembly of Transformer P.C.B
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4
10.6. Disassembly of Rear Panel
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4
Step 1 : Detach connector (CN3204) on Main P.C.B.
Step 1 : Detach cable at the connectors (CN5950 & CN5951) on Transformer P.C.B.
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Step 2 : Remove 3 screws. Step 1 : Detach connector (CN3204) on Main P.C.B.
Step 2 : Detach FFC cable at the connectors (CN2806, CN3200, CN3201 & CN3202) on Main P.C.B.
Step 3 : Remove 3 screws (Mounting screws for transformer to bottom chassis). Step 4 : Push the Transformer P.C.B backwards to remove it.
10.8. Disassembly of Main P.C.B
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4
Step 3 : Remove 4 screws. 32
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10.9. Disassembly of Sub Power P.C.B
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.8
Step 4 : Slightly pull out the rear panel as arrow (1) shown and lift up the Main P.C.B as arrow (2) shown to remove lt. Caution: Do not exert strong force when disassembly Main P.C.B as it may damage Power P.C.B.
Step 1 : Detach cable at the connectors (CN5104 & CN5204) on Sub Power P.C.B and cable at the connector (CN5950) on Transformer P.C.B.
Step 2 : Remove 1 screw for remove holder.
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10.10. Replacement of Regulator IC (IC5101)
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.6 · Follow the (Step 1) - (Step 4) of Item 10.8 · Follow the (Step 1) - (Step 5) of Item 10.9
Step 3 : Remove 2 screws (Regulator Transistor).
Step 1 : Flip over the Sub Power P.C.B and desolder the pins of IC5101. Step 2 : Remove the regulator IC.
10.11. Replacement of Regulator Transistor (Q5111)
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.6 · Follow the (Step 1) - (Step 4) of Item 10.8 · Follow the (Step 1) - (Step 5) of Item 10.9
Step 4 : Remove 2 screws. Step 5 : Remove Sub Power P.C.B. Note: Insulate the Sub Power P.C.B with insulation material to avoid short circuit.
Step 1 : Flip over the Sub Power P.C.B and desolder the pins of Q5111. Step 2 : Remove the regulator transistor.
10.12. Replacement of Regulator Transistor (Q5112)
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.6 · Follow the (Step 1) - (Step 4) of Item 10.8 · Follow the (Step 1) - (Step 5) of Item 10.9 34
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Step 1 : Flip over the Sub Power P.C.B and desolder the pins of Q5112. Step 2 : Remove the regulator transistor.
Step 1 : Flip over the Sub Power P.C.B and desolder the pins of Q5106. Step 2 : Remove the regulator transistor.
10.13. Replacement of Regulator Transistor (Q5105)
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.6 · Follow the (Step 1) - (Step 4) of Item 10.8 · Follow the (Step 1) - (Step 5) of Item 10.9
Step 1 : Flip over the Sub Power P.C.B and desolder the pins of Q5105. Step 2 : Remove the regulator transistor.
10.14. Replacement of Regulator Transistor (Q5106)
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 5) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.6 · Follow the (Step 1) - (Step 4) of Item 10.8 · Follow the (Step 1) - (Step 5) of Item 10.9
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10.15. Disassembly of Power P.C.B
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.8
10.16. Replacement of Digital-Amp IC (IC5200)
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.6 · Follow the (Step 1) - (Step 4) of Item 10.8 · Follow the (Step 1) - (Step 3) of Item 10.15
Step 1 : Remove 1 screw. Step 2 : Remove transistor clip.
Step 1 : Detach cable at the connectors (CN5104 & CN5204) on Sub Power P.C.B and cable at the connector (CN5950) on Transformer P.C.B.
Step 2 : Remove 2 screws. Step 3 : Remove 1 screw and remove Power P.C.B. Note: Insulate the Power P.C.B. with insulation material to avoid short circuit. Step 3 : Flip over the Power P.C.B and desolder the pins. 36
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Step 4 : Remove IC5200. Caution Note : Apply bond at Digital-Amp IC during assembly. Ensure the IC is seated properly with the transistor clip assembled to the heat sink unit
10.17. Replacement of Digital-Amp IC (IC5000)
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.6 · Follow the (Step 1) - (Step 4) of Item 10.8 · Follow the (Step 1) - (Step 3) of Item 10.15
Step 1 : Remove 1 screw. Step 2 : Remove transistor clip.
Step 3 : Flip over the Power P.C.B and desolder the pins. Step 4 : Remove IC5000. Caution Note : Apply bond at Digital-Amp IC during assembly. Ensure the IC is seated properly with the transistor clip assembled to the heat sink unit
10.18. Replacement of Digital-Amp IC (IC5400)
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.6 · Follow the (Step 1) - (Step 4) of Item 10.8 · Follow the (Step 1) - (Step 3) of Item 10.15
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Step 1 : Remove 1 screw. Step 2 : Remove transistor clip. Step 1 : Detach cable at the connector (CN5951) on Transformer P.C.B.
Step 2 : Detach FFC cable at the connectors (CN2806, CN3200, CN3201 & CN3202) on Main P.C.B.
Step 3 : Flip over the Power P.C.B and desolder the pins. Step 4 : Remove IC5400. Caution Note : Apply bond at Digital-Amp IC during assembly. Ensure the IC is seated properly with the transistor clip assembled to the heat sink unit
10.19. Disassembly of Front Panel
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 38
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10.20. Disassembly of USB P.C.B
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.19
Step 1 : Remove 2 screws. Step 2 : Remove USB unit. Step 3 : Release 2 catches. Step 4 : Bend the front panel slightly forward to remove front panel. 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 slot. Assembly is secured upon hearing clicking sound.
Step 3 : Remove USB bottom case as arrow shown (1)(2).
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Step 4 : Desolder 4 points. Step 5 : Remove USB P.C.B. Step 2 : Remove the MIC Volume Knob.
10.21. Disassembly for Panel P.C.B, Remote Sensor P.C.B & Sub Panel P.C.B
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.19 · Follow the (Step 1) - (Step 2) of Item 10.20
Step 1 : Remove the Earth Plate. Note: Do not misplace the Earth Plate. Keep in safe place for assembling.
Step 3 : Remove 12 screws. Step 4 : Detach connector (CN6004) on Panel P.C.B. Step 5 : Remove Panel P.C.B. · Disassembly of Remote Sensor P.C.B
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Step 9 : Remove the Volume Knob.
Step 6 : Flip over the Panel P.C.B. Step 7 : Release 2 catches and remove Remote Sensor P.C.B as arrow shown.
Step 10 : Remove 6 screws. Step 11 : Remove Sub Panel P.C.B.
10.22. Disassembly of Deck mechanism unit
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.19
Step 8 : Desolder the pins (JW6002). · Disassembly of Sub Panel P.C.B
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Step 1 : Remove 5 screws.
Step 3 : Tilt the cassette mechanism unit in the direction of arrow (1), and then remove it in the direction of arrow (2).
10.23. Disassembly of Deck P.C.B
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.19 · Follow the (Step 1) - (Step 3) of Item 10.22
Step 1 : Remove 3 screws.
Step 2 : Push the lever upward, and then open the Cassette Lid ass'y (For DECK1 and DECK2).
Step 2 : Desolder wire at Deck Motor Terminals (W1002). Step 3 : Remove Deck P.C.B.
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10.24. Disassembly for Deck Mechanism
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.19 · Follow the (Step 1) - (Step 3) of Item 10.22
10.24.2. Disassembly of capstan motor ass'y, capstan belt A, capstan belt B and winding belt
10.24.1. Disassembly of the pinch roller ass'y and head block
* The mechanism as shown below is for DECK1. For DECK 2, perform the same procedures.
Step 1 : Detach the head block connector (Deck P.C.B). Step 2 : Desolder wire (W1002) at motor assembly. Step 3 : Remove Deck P.C.B.
Step 1 : Release the catch, and then remove the pinch roller (F). Step 2 : Release 2 claws and detach the head block connector. Step 4 : Remove 3 screws (For deck 1 & 2).
Step 3 : Remove 2 screws. Step 4 : Remove head block.
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Step 5 : Remove capstan belt A/B. Step 6 : Remove the flywheel R. Step 7 : Release the claw and remove the winding lever and spring. [Installation of the belt] Step 1 : The boss and marking should be positioned horizontally. Step 2 : Put the winding belt on the pulley temporarily. Step 3 : Install the flywheel F. Step 4 : Put the winding belt on the flywheel F.
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Step 5 : Install the winding lever and spring while pressing the winding arm in the direction of arrow. Step 6 : Install the flywheel R.
Step 8 : Put the capstan belt B on the motor ass'y pulley. Step 9 : Install the sub chassis to the mechanism, and then tighten screws. Step 10 : Install 3 screws.
Step 7 : Put the capstan belt A temporarily as shown below.
Step 11 : Put the capstan belt B as shown below. Step 12 : Put the capstan belt A on the motor ass'y pulley.
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10.25. Disassembly of Traverse Unit
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 8) of Item 10.4 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 (5.3 Setting the Tray In "STOCK" position for CRS1 Service Manual order no. MD0509368C0)
Step 2 : Push the traverse slide plate as arrow shown to release the traverse unit. Caution: Do not exert strong force on the traverse slide plate.
Step 1 : Press and hold the plunger lever and rotate the gear as arrows shown until it stop.
Step 3 : Remove the traverse unit as arrow shown. · Assembly of Traverse Unit
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10.26. Disassembly of CD Lid
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4
Step 1 : Lift the Spring sideward. Note: Do not misplace the Spring.
Step 1 : Turn over the unit and install the traverse unit.
Step 2 : Push the sides of CD Lid Holders in the direction of the arrows shown. Step 3 : Remove CD Lid.
Step 2: Push the traverse slide plate as arrow shown to lock the traverse unit.
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10.27. Disassembly of Cassette Lid
· Follow the (Step 1) - (Step 6) of Item 10.3 · Follow the (Step 1) - (Step 6) of Item 10.4 · Follow the (Step 1) - (Step 4) of Item 10.19 · Follow the (Step 1) - (Step 3) of Item 10.22
10.28. Rectification for Tape Jam Problem
· Follow the (Step 1) - (Step 6) of Item 10.3
If a cassette tape cannot be removed from the deck (the tape is caught by the capstan or pinch roller during playback or recording). Step 1 : Lift the Spring sideward. (For DECK1 and DECK2). Note: Do not misplace the Spring. Step 1 : Rotate the flywheel F in the direction of the arrow to remove it.
Step 2 : Push the sides of Cassette Lid Holders in the direction of the arrows shown. (For DECK1 and DECK2) Step 3 : Remove Cassette Lid. (For Left & Right).
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Step 2 : Push the lever upward and open the Cassette Lid. Step 3 : Remove the Cassette Tape.
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11 Service Position
Note: For description of the disassembly procedures, see the Section 10
11.1. Checking & Repairing Main P.C.B
11.3. Checking & Repairing Deck Mechanism P.C.B
Step 1 : Remove the top cabinet. (Follow the Step 1 - Step 6 of Item 10.3) Step 2 : Remove the CD Changer Unit (CRS1). (Follow the Step 1 - Step 6 of Item 10.4) Step 3 : Remove the Front Panel. (Follow the Step 3 - Step 4 of Item 10.19)
Step 1 : Remove the top cabinet to service Main P.C.B. Note : Main P.C.B can be checked at its original position.
11.2. Checking & Repairing Transformer P.C.B
Step 4 : Move one side of the front panel slightly forward.
Step 1 : Remove the top cabinet to service Transformer P.C.B. Note : Transformer P.C.B can be checked at its original position.
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Step 5 : Place a box underneath the CD changer unit to adjust its position higher. Step 6 : Connect FFC cable from CD changer unit to the Main P.C.B (connectors CN2801 & CN2805).
11.4. Checking & Repairing Panel P.C.B
Step 1 : Remove the top cabinet. (Follow the Step 1 - Step 6 of Item 10.3) Step 2 : Remove the CD Changer Unit (CRS1). (Follow the Step 1 - Step 6 of Item 10.4) Step 3 : Remove the Front Panel. (Follow the Step 3 - Step 4 of Item 10.19)
Step 5 : Place a box underneath the CD changer unit to adjust its position higher. Step 6 : Connect FFC cable from CD changer unit to the Main P.C.B (connectors CN2801 & CN2805).
11.5. Checking & Repairing Deck P.C.B
Step 1 : Remove the top cabinet. (Follow the Step 1 - Step 6 of Item 10.3) Step 2 : Remove the CD Changer Unit (CRS1). (Follow the Step 1 - Step 6 of Item 10.4) Step 4 : Move one side of the front panel slightly forward. Step 3 : Remove the Front Panel. (Follow the Step 3 - Step 4 of Item 10.19)
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Step 4 : Move one side of the front panel slightly forward.
Step 6 : Move one side of the front panel slightly forward.
Step 5 : Place a box underneath the CD changer unit to adjust its position higher. Step 6 : Connect FFC cable from CD changer unit to the Main P.C.B (connectors CN2801 & CN2805).
11.6. Checking & Repairing USB P.C.B (Side B)
Step 1 : Remove the top cabinet. (Follow the Step 1 - Step 6 of Item 10.3) Step 2 : Remove the CD Changer Unit (CRS1). (Follow the Step 1 - Step 6 of Item 10.4) Step 3 : Detach FFC cable at the connector (CN3200). Step 4 : Remove the Front Panel. (Follow the Step 3 - Step 4 of Item 10.19) Step 5 : Remove the USB P.C.B. (Follow the Step 1 - Step 5 of Item 10.20) Step 7 : Place a box underneath the CD changer unit to adjust its position higher. Step 8 : Connect FFC cable from CD changer unit to the Main P.C.B (Connectors CN2801 & CN2805) and connect FFC cable from USB P.C.B to Main P.C.B (Connector CN3200).
11.7. Checking & Repairing CD Servo P.C.B
Step 1 : Remove the top cabinet. (Follow the Step 1 - Step 6 of Item 10.3) Step 2 : Remove the CD Changer Unit (CRS1). (Follow the Step 1 - Step 8 of Item 10.4)
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P.C.B (Connectors CN5104 & CN5204). Step 6 : Flip over Sub Power P.C.B.
Step 7 : Connect cable from Sub Power P.C.B to the Transformer P.C.B (Connector CN5950).
Step 3 : Place the CD changer unit as shown. Step 4 : Connect FFC cable from CD changer unit to the Main P.C.B (Connectors CN2801 & CN2805).
11.8. Checking & Repairing Sub Power P.C.B
Step 1 : Remove the top cabinet. (Follow the Step 1 - Step 6 of Item 10.3) Step 2 : Remove the CD Changer Unit (CRS1). (Follow the Step 1 - Step 6 of Item 10.4) Step 3 : Remove the Main P.C.B. (Follow the Step 1 - Step 4 of Item 10.8) Step 4 : Remove the Sub Power P.C.B. (Follow the Step 1 Step 5 of Item 10.9) Step 8 : Connect FFC cable from Front Panel to the Main P.C.B (Connectors CN3200, CN3201, CN3202 & CN2806) and connect cable from Fan to the Main P.C.B (Connector CN3204).
Step 5 : Connect cable from Power P.C.B to the Sub Power 53
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Step 8 : Place the Deck Mechanism Unit on the bottom chassis.
Step 9 : Place a box underneath the CD changer unit to adjust its position higher. Step 10 : Connect FFC cable from CD changer unit to the Main P.C.B (Connectors CN2801 & CN2805).
11.9. Checking & Repairing Power P.C.B
Step 1 : Remove the top cabinet. (Follow the Step 1 - Step 6 of Item 10.3) Step 2 : Remove the CD Changer Unit (CRS1). (Follow the Step 1 - Step 6 of Item 10.4) Step 3 : Remove the Rear Panel. (Follow the Step 1 - Step 4 of Item 10.6) Step 4 : Remove the Main P.C.B. (Follow the Step 1 - Step 4 of Item 10.8) Step 5 : Remove the Power P.C.B. (Follow the Step 1 - Step 3 of Item 10.15) Step 6 : Remove the Front Panel. (Follow the Step 1 - Step 4 of Item 10.19) Step 7 : Remove the Deck Mechanism Unit. (Follow the Step 1 - Step 3 of Item 10.22) Step 9 : Connect Main P.C.B to the Power P.C.B (Connector CN5102 & CN5103).
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Step 14 : Place both CD Changer Unit & Rear Panel on the box to adjust its position higher. Step 15 : Connect cable from Fan to the Main P.C.B (Connector CN3204). Step 10 : Place Power P.C.B on top of the Deck Mechanism Unit. Step 11 : Connect FFC cable from Deck Mechanism Unit to the Main P.C.B (Connectors CN3201 & CN3202). Step 12 : Connect FFC cable from Front Panel to the Main P.C.B (Connectors CN3200 & CN2806). Step 13 : Connect cable from Sub Power P.C.B to the Transformer P.C.B (Connectors CN5950). Step 16 : Connect FFC cable from CD changer unit to the Main P.C.B (Connectors CN2801 & CN2805).
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12 Adjustment Procedures
12.1. Cassette Deck Section
· Measurement Condition - Deck Tape Select: NORMAL - Make sure head, capstan and press roller are clean. - Judgeable room temperature 20 ± 5 °C (68 ± 9°F) · Measuring instrument - EVM (DC Electronic voltmeter) - Digital frequency counter · Test Tape - Tape speed gain adjustment (3 kHz, -10 dB); QZZCWAT
12.1.1. Tape Speed Adjustment (Deck 1/2)
1. Set the tape edit button to "NORMAL" position. 2. Insert the test tape (QZZCWAT) to DECK 2 and playback (FWD side) the middle portion of it. 3. Adjust Motor VR (DECK 2) for the output value shown below.
Adjustment target: 3000±90Hz (NORMAL speed)
4. After alignment, assure that the output frequency of the DECK 1 FWD are within 90 Hz of the value of the output frequency of DECK 2 FWD.
Fig. 1
12.1.2. Bias Voltage Check
1. Set the unit "AUX" position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and the unit to "REC" mode (use "l REC" key). 3. Measure and make sure that the output is within the standard value.
Bias voltage for Deck 2 14±4mV (Normal)
Fig. 2 Erase voltage for Deck 2 80mV (Normal)
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Fig. 3
12.1.3. Bias Frequency Adjustment (Deck 1/2)
1. Set the unit to "AUX" position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and set the unit to "REC" mode (use "l REC" key). 3. Adjust L1002 so that the output frequency is within the standard value as below.
Standard Value: 89 ~ 110 kHz
Fig. 4
12.2. Tuner section
No adjustment is required.
12.3. Aligment Points
12.3.1. Cassette Deck Section
Below is the locations of test points for Deck P.C.B.:-
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13 Voltage Measurement & Waveform Chart
Note: · Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as standard. Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester. · Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point because it may differ from actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
13.1. Voltage Measurement
13.1.1. CD SERVO P.C.B
Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY 1 0 0 21 1.6 0 41 0.2 0 61 3.2 0 81 1.6 0 1 1.6 0 21 0 0 E 3.1 0 2 0 0 22 0 0 42 2.4 0 62 0 82 1.6 0 2 0 0 22 0 0 Q7601 C 2 0.1 3 0 0 23 1.6 0 43 1.7 0 63 0 83 0 0 3 1.5 0 23 0 0 B 2.4 0 4 0 0 24 1.6 0 44 1.9 0 64 0 84 0 0 4 0 0 24 0 0 5 0 0 25 1.8 0 45 1 0 65 0 85 0 0 5 0 0 25 7.1 0 6 0 0 26 0 0 46 0 0 66 0 86 0 0 6 0 0 26 1.6 0 7 0 0 27 3.2 0 47 3.2 0 67 3 0 87 0 0 7 0 0 27 1.6 0 8 0 0 28 1.5 0 48 1.2 0 68 3 0 88 0 0 8 0 0 28 1.6 0 9 0 0 29 3.2 0 49 0 0 69 3 0 89 0 0 9 0 0 29 0 0 IC7001 10 11 0 0 0 0 IC7001 30 31 3.2 0 0 0 IC7001 50 51 1.2 1.6 0 0 IC7001 70 71 2.9 0 0 0 IC7001 90 91 0 0 0 0 IC7002 10 11 0 1.7 0 0 IC7002 30 0 0 12 0 0 32 1.6 0 52 1.6 0 72 3.2 0 92 0 0 12 3.2 0 13 0 0 33 1.6 0 53 0.9 0 73 0 0 93 3.2 0 13 3.2 0 14 0 0 34 0 0 54 1.4 0 74 1.6 0 94 0 0 14 3.2 0 15 0 0 35 0 0 55 1.5 0 75 0 0 95 0 0 15 2.8 0 16 0 0 36 1.9 0 56 1.5 0 76 1.6 0 96 0 0 16 3.8 0 17 0 0 37 1.9 0 57 0 0 77 3.2 0 97 0 0 17 3.2 0 18 0 0 38 0 0 58 3.2 0 78 0 0 98 0 0 18 3.2 0 19 0 0 39 1.7 0 59 0 0 79 3.2 0 99 0 0 19 0 0 20 3.2 0 40 1.7 0 60 0 0 80 1.6 0 100 0 0 20 7.1 0
SA-AK860GCP CD SERVO P.C.B
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13.1.2. MAIN P.C.B
Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY 1 3.7 0 21 0 0 41 0 0 61 3.2 3.2 81 3.3 3.3 1 4.6 4.6 21 4.6 4.6 41 1 7.5 7.5 1 7.6 7.8 2 0 0 22 0 0 42 0 0 62 3.3 3.3 82 0.1 0.1 2 4.6 4.6 22 4.6 4.6 42 4.6 4.6 2 7.5 7.5 3 3.1 0 23 0 0 43 0 1.3 63 0 0 83 3.2 3.3 3 4.6 4.6 23 4.6 4.6 43 4.6 4.6 3 7.5 7.5 4 0 0 24 0 0 44 0 0 64 0 0 84 0 0 4 4.6 4.6 24 4.6 4.6 5 0 0 25 0 0 45 0 0 65 1.4 1.4 85 0 0 5 4.6 4.6 25 4.6 4.6 6 0 0 26 0 0 46 3.2 3.2 66 3.2 3.2 86 3.2 3.2 6 4.6 4.6 26 4.6 4.6 46 4.6 4.6 6 7.5 7.5 6 7.5 7.7 2 5.2 4.7 6 4.6 4.6 Q2317 C 0 0 Q2501 C 1.7 0.6 Q2554 C 0 0 Q2559 C 4.2 4.2 Q2951 C 3.3 3.3 Q3502 C 0.8 0.8 Q3507 C 0 0 QR3513 C 0.1 0.1 7 0 0 27 0 0 47 3.2 3.2 67 0 0 87 0 0 7 4.6 4.6 27 4.6 4.6 47 4.6 4.6 7 7.5 7.5 7 7.6 7.7 3 5.2 4.7 7 4.6 4.6 B -0.9 0.6 B 1 1.1 B -1.8 -1.8 B 2.9 0 B 2.6 2.6 B 1.5 1.5 B 0.2 0.2 B 2.8 2.8 8 0 0 28 3.3 3.3 48 0 0 68 0 0 88 0 0 8 4.6 4.6 28 48 4.6 4.6 8 15 15.1 8 15 15.4 4 0 0 8 9.1 9.2 5 9 0 0 29 0 0 49 0 0 69 0 0 89 0.2 2.6 9 4.6 4.6 29 49 4.6 4.6 IC2801 10 11 0.8 0.7 0.7 0.7 IC2801 30 31 0 3.2 0 3.3 IC2801 50 51 0 0 0 0 IC2801 70 71 1.9 1.9 2.4 2.5 IC2801 90 91 1.4 3.3 1.8 3.3 IC2803 10 11 4.6 4.6 4.6 4.6 IC2803 30 31 4.6 4.6 4.6 4.6 IC2803 50 51 4.6 4.6 4.6 4.6 1 3.4 3.4 1 6 2 0 0 12 3.3 3.3 32 3.2 3.3 52 0 0 72 2.8 2.9 92 2.9 2.9 12 4.6 4.6 32 4.6 4.6 52 4.6 4.6 IC2805 3 1.3 1.3 13 1.6 1.6 33 0 0 53 3.2 0 73 0 0 93 2.8 2.8 13 0 0 33 4.6 4.6 53 4.6 4.6 14 0 0 34 0 0 54 0 0 74 0 0 94 2.9 2.9 14 4.6 4.6 34 4.6 4.6 54 4.6 4.6 15 1.6 1.6 35 0 3.3 55 0.1 0.1 75 2.4 0 95 2.6 2.7 15 4.6 4.6 35 4.6 4.6 55 4.6 4.6 16 3.3 3.3 36 0 0 56 0 0 76 3.3 3.3 96 0 0 16 4.6 4.6 36 4.6 4.6 56 4.6 4.6 17 3.3 3.3 37 0 0 57 0 0 77 3.1 3.3 97 3 3 17 4.6 4.6 37 4.6 4.6 18 3.3 3.3 38 0 0 58 3.3 3.3 78 3.1 3.3 98 3.3 3.3 18 4.6 4.6 38 9.2 9.3 19 0 0 39 3.2 3.1 59 3.3 3.3 79 3.3 3.3 99 3.3 3.3 19 4.6 4.6 39 3.3 0 20 1.8 1.8 40 0 3.2 60 0 0 80 0 0 100 1.6 1.6 20 4.6 4.6 40 0 0
2 3 7.6 7.3 7.8 7.4 IC2872 1 2 3 11.4 0 9 11.6 0 9 2 4.6 4.6 Q2311 E C 0 0 0 0 Q2441 E C 0 0 0 0 Q2553 E C 0 0 0 0 Q2558 E C 0 0 0 0 Q2950 E C 3.3 3.3 3.3 3.3 Q3501 E C 0 12.1 0 12.1 Q3506 E C 0 12.1 0 12.1 Q3537 E C 11.6 0 11.6 0 1 4.6 4.6 3 4.6 4.6 B -0.9 0.6 B -0.9 0.6 B -2 -1.9 B -2.4 0.7 B 2.6 2.6 B 0 0 B 0 0 B 0.1 0.1
44 45 4.6 4.6 4.6 4.6 IC2804 4 5 0 7.5 0 7.5 IC2810 4 5 0 7.4 0 7.6 1 5.1 5.1 IC3800 4 5 0 4.6 0 4.6 E 0 0 E 0.4 0.4 E 0 0 E 3.7 1.8 E 3.3 3.3 E 0 0 E 0 0 E 0 0
2 3 3.3 0 3.3 0 IC2900 7 8 -
4 5 3.3 3.4 3.3 3.4 IC2871 4 5 0 0 0 0 9 10 0 0
6 0 0 11 -
7 0 0 12 5.1 5.1
8 13 5.1 5.1 14 -
Q2341 C B 0 -0.9 0 0.6 Q2511 E C B 0 -0.9 0 1.3 1 0 Q2555 E C B 0 0 0.6 0 0 0.6 Q2803 E c B 0 3.3 0 0 3.2 0 Q2952 E C B 0 0 3.2 0 0 3.2 Q3503 E C B 12.3 0 12.2 12.2 0 12.2 Q3508 E C B 0 3.3 0 0 3.3 0 E 0 0
E 0 0 E 0 0 E 0 2.9 E 12.3 12.4 E 0 0 E 12.3 12.2 E 8.7 8.6
Q2411 C 0 0 Q2551 C -1.8 -1.9 Q2556 C -2.1 2.8 Q2936 C 0 0 Q3100 C 3.2 0 Q3504 C 0 0 Q3601 C 15.3 15
B 0.6 0.6 B 0 0 B 0 0 B 12.3 12.4 B 0 2.6 B 12.2 12.2 B 9.3 9.3
E 0 0 E 0 0 E 0 0 E 0 0 E 0 0 E 12.1 12.1 E 11.6 11.6
Q2417 C B 0 -0.9 0 0.6 Q2552 C B -1.8 0 -1.9 0 Q2557 C B 0 0.7 2.9 0 Q2937 C B 12.1 0 12.2 0 Q3500 C B 12.3 0 12.1 0 Q3505 C B 0 12.1 0 12.1 Q3535 C B 0 0.1 0 0.1
SA-AK860GCP MAIN P.C.B.
59
SA-AK860GCP
13.1.3. PANEL P.C.B
Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY IC6601 10 11 12 13 14 15 16 0 0 0 3.3 -17.1 -11 -18 0 0 0 3.3 -17 -11 -17 IC6601 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 -20.8 -24.5 -22.6 -22.7 -16.9 -22.6 -18.8 -22.7 -22.6 -23 -23.3 -23 -23.1 -22.8 -22.9 -22.9 -24.2 -24.3 -24.1 -24.2 -24.3 -24.1 -24.2 -24.2 -24.3 -24.4 -24.2 -24.1 -24.1 -24.1 -24.2 -24.2 IC6601 41 42 43 44 -22.8 -22.9 3.2 0 -24.1 -24.1 3.3 0 Q6501 Q6502 E C B E C B 0.7 5.6 0.1 5.8 9.3 5.3 0.7 5.5 0.1 5.8 9.4 5.2 1 0 0 2 0 0 3 0 0 4 0 0 5 1.8 1.8 6 1.3 1.5 7 1.9 2.5 8 2.7 2.9 9 1.9 2.4 17 18 19 20 -24.6 -24.6 -22.7 -22.7 -22.6 -24.6 -24.2 -24.2 37 38 39 40 -22.8 -22.9 -22.9 -22.8 -24.1 -24.1 -24.3 -24.1
SA-AK860GCP PANEL P.C.B.
13.1.4. SUB PANEL P.C.B
Ref No. MODE CD PLAY STANDBY
1 0 0
2 0 0
3 0 0
4 0 0
5 1.3 0
6 1.3 -
7 1.4 0
8 1.4 -
9 1.4 -
IC6701 10 11 1.9 1.8 0.2 0.2
12 1.7 0.2
13 1.5 0.2
14 1.5 0.2
SA-AK860GCP SUB PANEL P.C.B.
15 1.5 0.2
16 3.3 3.3
13.1.5. POWER P.C.B
Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY 1 2.9 2.9 21 0 0 1 2.9 2.9 21 0 0 1 2.9 2.8 21 0 0 1 0 0 E 0 0 2 0 0 22 0 0 2 0 0 22 0 0 2 0 0 22 0 0 3 0 0 23 3.7 2.2 3 0 0 23 3.7 2.2 3 0 0 23 3.7 2.2 4 0 0 5 3 2.9 E 0 0 6 2.8 2.8 Q5104 C 3.2 3.3 7 0 0 B 0 0 4 29.9 -29.9 5 0 0 6 7 -28.9 -20.7 -29.9 -20.8 8 30.3 30.3 9 91.1 92.2 4 30.1 30 5 0 0 6 -29 -29 7 -20.9 -29.9 8 30.4 30.4 9 91 90.7 4 30.1 30.2 5 0 0 6 7 -29.2 -21.1 -29.1 -21.3 8 30.4 30.6 9 91.2 90 IC5000 10 11 12 13 79.6 -29.2 -17 -29.2 78.4 -29.3 -17.2 -29.3 IC5000 IC5200 10 11 12 13 79.7 -29.2 -17.3 -29.2 79.4 -29.2 -17.2 -29.2 IC5200 IC5400 10 11 12 13 78.4 -29.2 -16.7 -29.2 80.6 -29.3 -16.8 -29.3 IC5400 14 81.1 79.7 15 92.8 91.1 16 30.3 30.6 17 -29 -29 18 -29 -29.1 19 0 0 20 30 30.2
14 79.9 79.1
15 91 90.5
16 30.4 30.3
17 -29 -29
18 -29 -29
19 0 0
20 30.1 29.9
14 78.4 80.7
15 90.2 90.9
16 30.4 30.5
17 -29 29.1
18 -29 -29.1
19 0 0
20 30 30.1
2 3 5.2 4.7 5.2 4.2 Q5103 C B 3.2 0 3.3 0
IC5500 8 2.9 2.9
9 2.9 2.9 E 0 0
10 2.9 2.3 Q5153 C 3.7 0
11 2.5 2.4 B 0 0.7
12 0 0
13 5.2 5.2 E 3.7 2.2
14 5.2 5.2 Q5154 C 0 0
B 3.2 3.2
SA-AK860GCP POWER P.C.B.
E 0 0
Q5173 C 3.7 2.2
B 0 0
60
SA-AK860GCP
13.1.6. SUB POWER P.C.B
Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY 2 5.6 5.6 Q5091 E C 0 3.7 0 3.7 Q5108 E C -45.9 -42.1 -46 -42.3 Q5114 E C 0 14.9 0 15 1 3.8 3.8 3 0 0 B 3.0 3.0 B -45.4 -45.4 B 12 12 4 12.1 12.1 5 3.3 3.3 IC5101 Q5100 C B 0 0.1 0 0.2 Q5111 E C B 15.2 28.4 15.8 15.2 28.5 15.9 Q5192 E C B 3.0 3.7 0 3.0 3.7 0 E 0 0 Q5105 D 32 32 Q5112 E C 17.1 12.1 17.3 12.1 Q5106 S D G -48.4 -46.8 -29.1 -48.4 -46.8 -29.2 Q5113 E C B 17.5 16.5 17.1 17.5 17 17.4
Q5092 C B 3.7 0 3.7 0 Q5109 E C B -4.8 -19.6 -5.4 -4.8 -19.6 -5.4 Q5191 E C B 0 3.7 3.0 0 3.7 3.0 E 3.0 3.0
S 30.3 30.4
G 47.8 47.8 B 16.4 16.4
SA-AK860GCP SUB POWER P.C.B.
13.1.7. DECK P.C.B
Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY IC1001 10 11 1.9 7.2 0 0 IC1001
1 0 0 21 6.3 0.3 1 7.9 0 E 0 0
2 0 0 22 0.7 0.3 2 0 0 Q1003 C -0.1 0
3 0.6 0.4 23 0 0 IC1004 3 0 0 B 0 0
4 5.5 0.4 24 0 0 4 0 0
5 5.5 0.2
6 2.8 0.2
7 0 0
8 0.3 0
9 0 0
12 0 0
13 11.3 0
14 0 0
15 0 0
16 0 0
17 0.3 0.3
18 0 0
19 0.2 0.2
20 5.4 0.1
5 0 0 E 0 0
Q1004 C 15.3 0
B 0 0
E 0 0
Q1005 C 15.3 0
B 0 0
E 0 0
Q1007 C 0 0
B 0 0
SA-AK860GCP DECK P.C.B.
E 0 0
Q1017 C B 11.6 -0.6 0 0
13.1.8. DECK MECHANISM P.C.B
Ref No. MODE CD PLAY STANDBY
1 0.7 0
2 5 0
IC951
3 4.2 0
4 5.3 0
1 0.5 0
2 0 0
IC971
3 3.9 0
4 5 0
SA-AK860GCP DECK MECHANISM P.C.B.
13.1.9. TRANSFORMER P.C.B
Ref No. MODE CD PLAY STANDBY
E 5.7 5.5
Q5950 C B 6.3 12.1 6.3 12.2
Q5951 E C B -25.2 -45.1 -25.8 -25.1 -44.6 -25.7
E 0 0
Q5952 C -1.1 -1.1
B 1.8 1.8
E 0 0
Q5953 C 0.7 0.7
SA-AK860GCP TRANSFORMER P.C.B.
B 0.1 0.1
E 12 12.1
Q5954 C B 29.6 11.3 29.3 11.2
61
SA-AK860GCP
13.1.10. USB P.C.B
Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY Ref No. MODE CD PLAY STANDBY 1 1.3 0 21 3.3 0 41 1.4 0 61 0 0 1 0 0 2 3.2 0 22 3.3 0 42 1.2 0 62 1.8 0.6 2 5 0 3 3.2 0 23 3.3 0 43 1.8 0 63 1.4 0 3 5 0 4 0 0 24 1.4 0 44 0 0 64 3.2 0 4 3.2 0.6 5 3.3 0 6 0.5 0 7 0.5 0 8 0.5 0 5 0 0 25 1.4 0 45 1.4 0 6 0 0 26 1.3 0 46 3.2 0 7 3.2 0.6 27 1.3 0 47 3.2 0 8 3.2 0 28 1.3 0 48 0.1 0 9 3.2 0.6 29 1.3 0 49 3.2 0 IC900 10 11 1.8 0 0.6 0 IC900 30 31 1.3 1.3 0 0 IC900 50 51 0 0 0 0 IC900 12 1.5 0 32 1.3 0.1 52 1.2 0 13 0 0 33 1.3 0 53 0.1 0 14 0 0 34 1.3 0 54 0 0 15 0 0 35 1.3 0 55 1.4 0 16 0 0 36 1.3 0 56 3.1 0 17 3.2 0 37 1.3 0 57 3.1 0 18 0 0 38 3.3 0 58 3.1 0 19 0 0 39 1.4 0 59 0 0 20 0 0 40 0 0 60 1.3 0
IC951
SA-AK860GCP USB P.C.B.
13.2. Waveform Chart
WF No. IC2801-13,15 (PLAY)
WF No. IC2803-3,4 (PLAY) WF No. IC2803-5,6,37,42 (PLAY) WF No. IC2804-1,3,5,7 (PLAY)
3.2Vp-p (50nsec/div) 0.9Vp-p (10msec/div) 0.1Vp-p (10msec/div) 0.9Vp-p (5msec/div) WF No. IC3700-1,3,5,7 (PLAY) WF No. IC3800-1,3,5,7(PLAY) WF No. IC2810-1,2,4,6 (PLAY) WF No. IC2900-2,3,12,13 (PLAY)
0.1Vp-p (10nsec/div) 0.1Vp-p (10nsec/div) 1.5Vp-p (50nsec/div) 1.3Vp-p (50usec/div) WF No. IC5000-2,22 (PLAY) WF No. IC5000-10,14 (PLAY) WF No. IC5200-2,22 (PLAY) WF No. IC5200-10,14 (PLAY)
1.2Vp-p (20usec/div) 60Vp-p (20usec/div) WF No. IC5400-2,22 (PLAY) WF No. IC5400-10,14 (PLAY)
1.2Vp-p (20usec/div)
60Vp-p (20usec/div)
1.2Vp-p (20usec/div)
60Vp-p (20usec/div)
62
SA-AK860GCP
14 Wiring Connection Diagram
MUSIC PORT
SOLDER SIDE
PbF
SOLDER SIDE
CN5104
9. . . . . . . . . . . 1 1. . . . . . . . . . . 6
E
H5104
1 . . . . . . . 9
SUB PANEL P.C.B
VR6491
CN6601 JK6751
30 29 . . . . . . . . . . . . 2 1
H6555
9 . . . . 1
CN5204
JK6551 HEADPHONE JK6501 MIC
H
POWER P.C.B
JK5000 SPEAKERS PbF
I
SUB POWER P.C.B
CN6001
1. . . . . . . . . . . 12
SOLDER SIDE
VOLUME JOG
PbF
1. . . . . . . . . . . 12
CN6604
C
JW6001
VR6511 MIC VOLUME
PANEL P.C.B
1. . . 3
H5500
6 . . . . 1 1. . . . . . . . . . . 9
For SB-WAK860
H5501 CN5102
1. . . . . . . . . . . 12
G
SUBWOOFER INTERFACE P.C.B
PbF CN9001 H9000
1 . . 3 1 . . 3
CN5103
1. . . . . . . . . . . 12
SUBWOOFER SWITCH P.C.B
SOLDER SIDE
JW7000
3...1
PbF
PbF
SOLDER SIDE
SOLDER SIDE
F A
CN7002
22 21 . . . . . . . . . . . . . . . . . .2 1
REMOTE SENSOR P.C.B
SOLDER SIDE
CD SERVO P.C.B
AUX
SOLDER SIDE
PbF
Tuner Pack
JK2803
1...3
CN2812
1 3
JW6002
1...3
Z6481 PbF
MOTOR
CN3204 CN3601
10 . . . . . 1 1 2
OPTICAL PICKUP
CN7001
2 1
REMOTE SENSOR
CN2801
1 2 . . . . . . . . . . 21 22
M
TRAVERSE MOTOR M7301
16 15
.. . . . .. . . . .. .. . . ... ...
CN2809
12 . . . . . 1
B
MAIN P.C.B
SOLDER SIDE
2- 1+
R/PHead
PLAYBACK Head
W1002
J
CN1001
DECK P.C.B
M
SPINDLE MOTOR M7302
FAN UNIT
PbF CN2808
12 . . . . . 1
CN3200
22 21 . . . . . . . . . . 1 1
2 . . . . . .. 10
1 . . . . . . . . 11
SOFTWARE WRITING
1 . . . . . . .7 2 . . . . . . .8
PbF
1 . . . . .5 2 . . .4
(DECK 2) TO R/P Head
CS1002
(DECK 1) TO PLAYBACK HEAD
1 . . . . .5 2 . . .4
CS1001
CN2805
*CN2811
CN3202 CN3201
10 . . . . . . .2 9 . . . . . . .1
TO CRS1D (CN1)
CN2806
14 . . . . 1
SOLDER SIDE
11 . . . . . . .1
30 . . . . . . . . . . . .2 29 . . . . . . . . . . . .1
SOLDER SIDE
CN5951
1 . . . 9
L
TRANSFORMER P.C.B
T5951 SUB TRANSFORMER
CN5950
9 . . . 1
D
JK5950
AC IN
PANEL EXTENT P.C.B
SOLDER SIDE
P901
1 . 2 . . . . . . . . . . . . . . . . . . . . 21 . 22
P903
6
110V-127V/220V-240V 50Hz/60Hz T5950 MAIN TRANSFORMER VOLTAGE SELECTOR
12 . . . . . . . . . 1
PbF
1 . . 9 2 . . 10
CN6002 CN971
M
UBS P.C.B
SOLDER SIDE
SOLDER SIDE
PbF
4 . . . . 1
USB
5
K
DECK MECHANISM P.C.B
CN6003
12 . . . . . . . . . 1
(SIDE B)
PbF
PbF
S5950
* FOR INDICATION ONLY
63
SA-AK860GCP
64
SA-AK860GCP
15 Block Diagram
15.1. CD SERVO
OPTICAL PICKUP
SEMICONDUCTOR LASER
STAT Q7601 LASER POWER DRIVE B MLD MCLK MDATA CN7002 CN2801 19 4 CN7002 CN2801 11 12 CN7002 CN2801 6 17 CN7002 CN2801 8 15 CN7002 CN2801 7 16 TO MAIN (1/2)
TO MAIN (2/2)
B
PHOTO DETECTOR
A 81 X1 79 82 61 TO MAIN (1/2) B F A, B, C, D, E, F CN7002 CN2801 3 20 72 3.3V 3.3V 47 31 35~40 AVDD2 AVSS2 A,B,C,D,E,F SPINDLE CPU [DSV] EFM DEMODUALTION SYNC INTERPOLATION CIRC ECC CDROM ECC [DEMECC] CIRC RAM SERVO CPU [DSV] REGON NTEST NSRVMONON NRST TIMING GENERATOR [GEN] MICRO COMPUTER INTERFACE [MCIF] DSL/PLL/VCO [DSLPLL]
TXTCK TXTD DQSY (SBCK) (SUBC) (TXNCLDCK) FLAG BLKCK 65 71
X7201 80 X2 (SMCK) (PMCK) 70 STAT 69 MLD 67 68 MDATA MCLK 51 53 52 IREF ARFIN DSLF 54 PLLF 55 PLLFO
B B
3.3V 3.3V
42 B E
ARFF
LD PD
SUBCODE INTERFACE [DEMECC]
41 50 49 48
ARFFB ARFOUT ARFDC RFOUT RFIN CENV CTRCRS CMOS RF AMPLIFIER
CN7002 CN2801 5 18
TO MAIN (2/2)
B
45 46 43
BUS CONTROL UNIT [BCU]
PRAMVDD33
20 18
1Mbit DRAM
3.3V
PRAMVSS33
VREF
IC7002 BA5948FPE2
32 34 44
OSCIN VREF RFENV
D0~D15 A0~A11 BA0,BA1 83~92,94~99 1~7,11~15 16,17 8,9 10,100
VREF
4 CH DRIVE
VREF 26
VREF
FOP
A/D CONVERTER
MP3/WMA DECORDER
NWE,NCAS NRAS,SDRCK
F-
16
D3[CH3] LEVEL SHIFT
IN3
28
22 21 23 24
PC SPOUT TRVP TRP FOP SRVMON0 SRVMON1 OUTPUT PORT
FOCUS COIL
F+ 15 D3+
FS CONVERTER [FSC]
SERIAL OUTPUT INTERFACE [DAO]
EXT0 EXT1 EXT2 (LRCK) (BCLK) (SRDATA)
62 63 64
CN7002 CN2801 6 17 CN7002 CN2801 7 16 CN7002 CN2801 8 15 TO MAIN (2/2)
T-
18
D4[CH4] LEVEL SHIFT
25 IN4 27 TRP 29 30
DIGITAL FILTER 1bitDAC PWM LOGIC [DF, MASH]
TRACKING COIL
T+
17
D4+
REGULATOR ANALOG LOWPASS FILTER
(DVDD2)
76
SPINDLE MOTOR
M7302
M
TRV+ TRV-
12 11
D1+ D1[CH2]
LEVEL SHIFT
IN2
1
TRVP
DIGITAL OUT
IOVDD2
TRAVERSE MOTOR
M7301
M
SP+ SP-
14 13
D2+ D2[CH1]
IN1 LEVEL SHIFT
3
SPOUT
IC7001 MN6627954MA
66
57
58
59
56
60
78
26
76
28
93
27
77 S7201 REST SWITCH
MUTE [CH1] MUTE [CH2]
PC1
4
PC
SERVO PROCESSOR/ DIGITAL SIGNAL PROCESSOR/ DIGITAL FILTER D/A CONVERTER
3.3V
IOVDD1
DRVDD
DVDD2
DVDD1
AVDD1
DVSS3
DVSS2
DVSS1
AVSS1
OUTR
OUTL
TX
3.3V
3.3V 3.3V 3.3V LCH OUT RCH OUT
CN7002 CN2801 21 2 CN7002 CN2801 2 21 CN7002 CN2801 4 19
TO MAIN (1/2)
PC2
2
TO MAIN (2/2)
SA-AK860GCP CD SERVO BLOCK DIAGRAM
65
SA-AK860GCP
15.2. MAIN (1/2) & SUBWOOFER INTERFACE
IC2803 C1BB00001121
AUDIO SOUND PROCESSOR
IN-L2 IN-R2 R-OUT L-OUT 42 3
IC2900 C1AB00002852
CN3601 6
FROM TUNER
3 4
AUDIO LIMITER
INA OUTA 2 2 3
IC2804 C0AABB000125
OP-AMP
1
CN3601 8 CN7002 CN2801 2 21 CN7002 CN2801 19 4
CN2809 CN5102 5 CN2809 CN5102 8
Q2317 Q2417 MUTE SWITCH
37
12
INB
OUTB
13
6 5
5 6
7
FROM CD SERVO
IN-L3 Q2311 IN-R3 MUTE SWITCH Q2411 MUTE SWITCH
MUTE SWITCH
CN2809 CN5102 2
TO POWER
11 JK2803 AUX
IN-L6 IC2810(2/2) C0ABBB000244 5
12
IN-R6
SMT OP-AMP
55 IC3800 C0ABBB000244 2 3 GV_OUT-R 16 6 5 6 7 Q2554 SUBW MUTING SWITCH Q2553 SUBWOOFER LEVEL CONTROL SWITCH 3 2
IC2810(1/2) C0ABBB000244
SMT OP-AMP
1 Q2555 SUBWOOFER LEVEL CONTROL SWITCH
CN6601 CN2806 22
FROM PANEL
7 8 56
IN-L4 GV_OUT-L IN-R4 OP-IN REC-L
CN2809 CN5102 11
CN6601 CN2806 20 CN6601 CN2806 29
SMT OP-AMP
54 1
7 Q2551 SUPPLY SWITCH SW LVL1
REC-L
53
Q2552 SUPPLY SWITCH
SW LVL2
FROM DECK
CN1001 CN3202 11 CN1001 CN3202 10
1 2
IN-L1 IN-R1 DATA CLK
REC-R
17
CN2806 CN6601 27 CN2806 CN6601 25
TO PANEL