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ORDER NO.MD0507279C2
DVD Home Theater Sound System
SA-HT885WEG
Colour
(S).......................Silver Type
Specifications
lGeneral Type of Emissions:
Power Source: Data Rate 1 Mbps
AC 230 V, 50 Hz lAmplifier section
Power consumption: 25 W RMS Output Power: Dolby Digital Mode
Dimensions (W×H×D): 430×60×348.3 mm lTotal RMS Dolby Digital
Mass: 2.7 kg mode Power: 1000 W
lGeneral (For digital transmitter and receiver) At 1kHz and total harmonic of 10%
Power Source: lFront: 170 W/ Channel (6)
AC 230 V, 50 Hz lCenter: 260 W/ Channel (4)
Power consumption: lSurround: 70 W/ Channel (4)
Digital transmitter 0.3 W At 100Hz and total harmonic of 10%
Digital receiver 35 W lActive subwoofers: 260 W/ Channel (4)
Dimensions (W×H×D): DIN Output Power: Dolby Digital Mode:
Digital transmitter 97×47.5×8.5 mm lTotal DIN Dolby Digital mode Power:
Digital receiver 103×215×178 mm 750 W
Mass: At 1kHz and total harmonic of 1%
Digital transmitter 0.03 kg lFront: 140 W/ Channel (6)
Digital receiver 2.3 kg lCenter: 180 W/ Channel (4)
Wireless module: lSurround: 55 W/ Channel (4)
Frequency range 2.402-2.480 GHz At 100Hz and total harmonic of 1%
No. of channels 79 lSubwoofer: 180 W/ Channel (4)
Bandwidth/Channel 1MHz lAmplifier section (For digital receiver)
RF Output Power 13dBm (max) lTotal RMS Dolby Digital:
RF Output Impedance 50 At 1kHz and total harmonic of 10%
lSurround Ch: 70 W/ Channel (4)
© 2005 Panasonic AVC Networks Singapore Pte.
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-HT885WEG
lTotal DIN Dolby Digital: 4000 audio and picture
At 1kHz and total harmonic of 1% contents and 400 groups
lSurround Ch: 45 W/ Channel (4) lExif Ver 2.1 JPEG Baseline files
lFM tuner section lPicture resolution: between 320 x 240 and 6144 x 4096
pixels (sub sampling is 4:2:2 or 4:2:0)
Frequency Range: 87.5-108.0MHz
(13) HighMAT Level 2 (Audio and lmage)
(50kHz in step)
Pick up:
Sensitivity: 1.5µV (IHF)
Wavelength:
S/N 26dB 1.2µV
lCD: 785nm
Antenna Terminal: 75 (non balance)
lDVD: 662nm
lAM tuner section (AM/MW)
Laser Power: Class 2/ Class 3A
Frequency Range: 522-1629kHz (9kHz in step)
Audio output (DISC):
AM Sensitivity S/N 20dB at
999kHz: Number of channels: 5.1 ch (FL, FR, C, SL, SR,
560µV/m
SW)
Phone Jack:
Audio performance:
Terminal: Stereo 3.5mm jack
Frequency response:
lDisc section
DVD (linear audio): 10 Hz-22 kHz (48 kHz
Discs played [8 cm or 12 cm]: sampling)
(1) DVD-RAM (DVD-VR compatible, JPEG formatted discs, 10 Hz-44 kHz (96 kHz
MPEG4, DivX) sampling)
(2) DVD-Audio DVD-Audio: 10 Hz-88 kHz (192 kHz
(3) DVD-Video sampling)
(4) DVD-R, DVD-RW (DVD-Video compatible, DivX, DVD-VR CD-Audio: 10 Hz-20 kHz
compatible) S/N ratio:
+R, +RW (Video compatible) CD-Audio: 95 dB
(5) CD-Audio (CD-DA) Dynamic range:
(6) Video CD DVD (linear audio): 95 dB
(7) SVCD (Conforming to IEC62107) CD-Audio: 93 dB
(8) CD-R/CD-RW (CD-DA, Video-CD, SVCD, MP3, WMA, JPEG Total harmonic distortion:
formatted discs, MPEG4, DivX, HighMAT Level 2) CD-Audio: 0.005 %
(9) MP3/WMA lVideo section
lMaximum number of recognizable audio and picture contents Video system:
and groups: Signal system: PAL 625/50, PAL 525/60,
4000 audio and picture NTSC
contents and 400 groups Composite video output:
lMPEG-1 Layer 3, MPEG-2 Layer 3 Output level: 1 Vp-p (75 )
lWIndows Media Audio Ver.9.0 L3 Terminal: Pin jack (1 system)
Not compatible with multiple Bit Rate (MBR) Scart jack (1 system)
(10) DivX
lDivX 3.11,4.x, 5.x S-video output:
GMC (Global Motion Compensation) is not supported. Y output level: 1 Vp-p (75 )
lMaximum number of recognizable audio and picture contents C output level: PAL; 0.3Vp-p (75 )
and groups: NTSC; 0.286 Vp-p (75 )
4000 audio and picture Terminal S terminal (1 system)
contents and 400 groups
Scart jack (1 system)
(11) MPEG4
lMaximum number of recognizable audio and picture contents
Component video output:
and groups:
NTSC: 525(480)P/525(480)I
4000 audio and picture
contents and 400 groups PAL: 625(576)P/625(576)I
lData recorded with Panasonic SD multi cameras or DVD Y output level: 1 Vp-p (75 )
video recorders. PB output level: 0.7 Vp-p (75 )
Comforming to SD VIDEO specifications (ASF standard)/ PR output level: 0.7 Vp-p (75 )
MPEG4 (Simple Profile) video system/G.726 audio system. Terminal: Pin jack (Y: green, PB: blue,
(12) JPEG PR: red) (1 system)
lMaximum number of recognizable audio and picture contents
and groups:
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RGB video output:
R output level: 0.7 Vp-p (75 )
G output level: 0.7 Vp-p (75 )
B output level: 0.7 Vp-p (75 )
Terminal Scart jack (1 system)
Power consumption in standby mode:
approx 0.7W
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.
Solder:
This model uses lead free solder (PbF).
CONTENTS
Page Page
1 Use of Active Subwoofer 5 10.3. Grounding for electrostatic breakdown prevention 19
1.1. Checking Player when Active Subwoofer is not used 5 11 Disassembly and Main Component Replacement Procedure
2 Safety Precautions 6 21
2.1. GENERAL GUIDELINES 6 11.1. Disassembly Procedure 21
3 Prevention of Electro Static Discharge (ESD) to 11.2. Main Components and P.C.B. Locations. 22
Electrostatically Sensitive (ES) Devices 6 11.3. Disassembling the Top Cabinet 23
4 Before Repair and Adjustment (Using Active Subwoofer) 7 11.4. Disassembling the Lid assembly (When taking out disc
5 Protection Circuitry 7 manually) 23
6 Precaution of Laser Diode 8 11.5. Disassembling the Front Panel 24
7 About Lead Free Solder (PbF) 8 11.6. Disassembling the FL P.C.B., Volume P.C.B. 24
8 General Description 9 11.7. Disassembling the DVD mechanism Unit 24
8.1. Operating instructions 9 11.8. Disassembling the DVD Module P.C.B. 25
8.2. Disc information 10 11.9. Disassembling the Rear panel 25
8.3. Using of Receiver Unit (SH-FX50) - Optional 12 11.10. Disassembling the Scart P.C.B. 25
8.4. About HighMAT 13 11.11. Disassembling Main P.C.B. 25
9 Accessories 18 11.12. Service Position 26
10 Handling Precautions for Optical Pickup Unit 19 12 Assembling and disassembling the DVD mechanism Unit 27
10.1. Cautions to Be Taken in Handling the Optical Pickup Unit 12.1. Disassembly Procedure 27
19 12.2. Traverse Unit 27
10.2. Cautions to Be Taken When Replacing the Optical Pickup 12.3. Tray Unit 28
19 12.4. Loading section 29
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12.5. Tray Loading P.C.B. 30 16.4. Optical adjustment 43
12.6. Optical Pickup Unit 30 17 Abbreviations 44
12.7. Traverse Motor and Spindle Motor 32 18 Voltage Chart 46
13 Optical Pick-up Self-Diagnosis and Replacement Procedure 18.1. DVD Module P.C.B. 46
34 18.2. Main P.C.B. 47
13.1. Optical Pickup Breakdown Diagnosis 34 18.3. FL P.C.B. & Scart P.C.B. & Tray Loading P.C.B. 48
13.2. Service Mode Table 1 35 19 Wave Form Chart 49
13.3. DVD Self Diagnostic Function-Error Code 35 20 Schematic Diagram Notes 50
13.4. Service mode table 2 37 21 Block Diagram 51
13.5. Sales demonstration lock function 39 22 Schematic Diagram 57
13.6. Handling After Completing Repairs 39 23 Printed Circuit Board Diagram 67
14 Self-Diagnosis Function 40 24 Wiring Connection Diagram 71
14.1. Automatic Displayed Error Codes 40 25 Illustration of IC , Transistors and Diodes 73
14.2. Memorized Error Codes 40 26 Terminal Function of ICs 74
15 Service Precautions 41 26.1. IC2018 (C2CBJG000672): System control 74
15.1. Recovery after the DVD player is repaired 41 27 Parts Location and Replacement Parts List 75
15.2. Firmware version-up of the DVD player 41 27.1. Loading Mechanism, Traverse Unit & Cabinet 76
16 Adjustment Procedure 42 27.2. Component Parts List 79
16.1. Service Tools and Equipment 42 27.3. Packing Materials & Accessories Parts List 88
16.2. Important points in adjustment 42 27.4. Packaging 89
16.3. Storing and Handling Test Discs 42
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1 Use of Active Subwoofer
1.1. Checking Player when Active Subwoofer is not used
1. This unit uses the active subwoofer to supply the power of the component, and the active subwoofer should be connected to
the component to check operational conditions of the component.
2. If the active subwoofer is not available due to repair of the unit, use the following equipment.
Jig product number: RFKZ0182 (110V, 127V, 220V, 230V-240V for overseas domestic use)
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2 Safety Precautions
2.1. 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, carry out the following leakage current checks to prevent the customer from being exposed to shock hazards.
2.1.1. LEAKAGE CURRENT COLD 2.1.2. LEAKAGE CURRENT HOT CHECK
CHECK (See Figure 1 .)
1. Unplug the AC cord and connect a jumper between the two 1. Plug the AC cord directly into the AC outlet. Do not use an
prongs on the plug. isolation transformer for this check.
2. Measure the resistance value, with an ohmmeter, between 2. Connect a 1.5k, 10 watts resistor, in parallel with a 0.15µF
the jumpered AC plug and each exposed metallic cabinet capacitors, between each exposed metallic part on the set
part on the equipment such as screwheads, connectors, and a good earth ground such as a water pipe, as shown in
control shafts, etc. When the exposed metallic part has a Figure 1.
return path to the chassis, the reading should be between 3. Use an AC voltmeter, with 1000 ohms/volt or more
1M and 5.2M. sensitivity, to measure the potential across the resistor.
When the exposed metal does not have a return path to
4. Check each exposed metallic part, and measure the
the chassis, the reading must be .
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 outside 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
Figure 1 customer.
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static 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
aluminum foil, to prevent electrostatic charge buildup 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 removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can
generate electrical charge sufficient 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, aluminum 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.
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Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily 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).
4 Before Repair and Adjustment (Using Active Subwoofer)
Disconnect AC power, discharge Power Supply Capacitors C546~C549 through a 10 , 10 W 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 230 V, 50 Hz in NO SIGNAL mode should be ~ 620 mA.
5 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.
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6 Precaution of Laser Diode
7 About Lead Free Solder (PbF)
Distinction of PbF PCB: PCBs (manufactured) using lead free solder will have a PbF stamp on the PCB.
Caution:
· Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher.
Please use a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ±
20°F (370 ± 10°C).
· Pb free solder will tend to splash when heated too high (about 1100°F/ 600°C).
When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the
soldering points with the Pb free solder until it melts enough.
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8 General Description
8.1. Operating instructions
AV SYSTEM
TV VCR
/AV SYSTEM
TV/AV
TV/AV AUX TUNER/BAND DVD/CD TUNER/BAND,
DVD/CD
AUX
1 2 3 CH
CH
NUMBERED 4 5 6 CH
BUTTONS 7 8 9
VOLUME
-/--
CANCEL CANCEL 0 S 10 VOLUME
SKIP SLOW/SEARCH
(SKIP) (SLOW/SEARCH)
(STOP) (PAUSE) (PLAY)
TOP MENU MENU
TOP MENU MENU
DIRECT PLAY
NAVIGATOR LIST
ENTER
ENTER
FUNCTIONS RETURN
FUNCTIONS/ RETURN /TV VOL
TV VOL TV VOL
TV VOL SUBWOOFER SUPER SRND C.FOCUS MIX 2CH SUBWOOFER SUPER SRND C.FOCUS MIX 2CH
LEVEL H.BASS SFC PL
LEVEL H.BASS SFC PL
ZOOM SUBTITLE SETUP
SLEEP TIMER MANUAL SKIP AUDIO MUTING
ANGLE/PAGE
ZOOM SUBTITLE SETUP
FL DISPLAY GROUP REPEAT PLAY MODE SLEEP TIMER MANUAL SKIP AUDIO MUTING
ADVANCED PLAY SPEED TEST
SHIFT DISC REVIEW QUICK REPLAY CH SELECT
SHIFT ANGLE/PAGE
FL DISPLAY GROUP REPEAT PLAY MODE
ADVANCED PLAY SPEED TEST
DISC REVIEW QUICK REPLAY CH SELECT
OPEN/CLOSE
STANDBY/ON INDICATOR
TUNING
INPUT SELECTOR
OPEN CLOSE
TUNING
REMOTE CONTROL
INPUT SELECTOR PROGRESSIVE H.BASS VOLUME SIGNAL SENSOR
PHONES
RDS TUNE MODE FM MODE MEMORY DOWN UP
PHONES
PROGRESSIVE,RDS/ TUNE MODE /
H.BASS/H.BASS INDICATOR FM MODE / VOLUME
MEMORY
STANDBY/ON SWITCH [ I /I]
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8.2. Disc information
Discs that can be played
Indication in
Disc Logo these operating Remarks
instructions
Recorded with devices using Version 1.1 of the Video Recording Format (a
RAM unified video recording standard), such as DVD video recorders, DVD video
cameras, personal computers, etc.
Recorded with Panasonic SD multi cameras or DVD
JPEG video recorders using the DCF (Design rule for Camera
DVD-RAM File system) Standard Version 1.0.
To play JPEG,
Recorded with Panasonic SD multi cameras or DVD MPEG4 or DivX video
video recorders [conforming to SD VIDEO contents, select "Play
MPEG4 as Data Disc" in Other
specifications (ASF standard)/MPEG4 (Simple Profile) Menu
video system/G.726 audio system].
1
DivX --
DVD-A --
Some DVD-Audio discs contain DVD-Video content.
DVD-Audio To play DVD-Video content, select "Play as DVD-Video" in Other Menu.
DVD-V
--
DVD-Video
Discs recorded and finalized 2 on DVD video recorders or DVD video cameras.
DVD-R
(DVD-Video)/ DVD-V
DVD-RW
(DVD-Video)
+R (Video)/ Discs recorded and finalized 2 on DVD video recorders or DVD video cameras.
--
+RW (Video)
2
DVD-R Finalize the disc after recording.
(DivX-Video)/ 1
DivX
DVD-RW
(DivX-Video)
Discs recorded and finalized 2 on DVD video recorders or DVD video cameras
using Version 1.1 of the Video Recording Format (a unified video recording
DVD-RW DVD-RW (VR) standard).
(DVD-VR)
--
Video CD
VCD
Conforming to IEC62107
SVCD
This unit is compatible with HDCD, but does not support the Peak Extend
CD CD function (a function which expands the dynamic range of high level signals).
HDCD-encoded CD's sound better because they are encoded with 20 bits, as
compared with 16 bits for all other CD's.
WMA This unit can play CD-R/RW (audio recording disc) recorded with the formats
MP3 on the left. Close the sessions or finalize 2 the disc after recording.
JPEG HighMAT discs
CD-R WMA, MP3 or JPEG files only.
-- CD
CD-RW To play without using the HighMAT function, select "Play as Data Disc" in Other
MPEG4
1
Menu.
DivX WMA This unit does not support Multiple Bit Rate (MBR: a file that contains the
VCD same content encoded at several different bit rates).
1 Created using DivX ver.3.11, 4.x, 5.x [DivX video system/MP3, Dolby Digital or MPEG audio system].
2 A process that allows play on compatible equipment.
It may not be possible to play the above discs in all cases due to the type of discs, the condition of the recording, the recording method and how
the files were created.
Discs that cannot be played Video systems
Version 1.0 of DVD-RW, DVD-ROM, CD-ROM,CDV, CD-G, SACD This unit can play PAL and NTSC, but your television must match
and Photo CD, DVD-RAM that cannot be removed from their the system used on the disc.
cartridge, 2.6-GB and 5.2-GB DVD-RAM and "Chaoji VCD" available PAL discs cannot be correctly viewed on an NTSC television.
on the market including CVD, DVCD and SVCD that do not conform This unit can convert NTSC signals to PAL 60 for viewing on a PAL
to IEC62107. television.
Audio format of DVD's
This unit automatically recognizes
and decodes discs with these
symbols.
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8.3. Using of Receiver Unit (SH-FX50) - Optional
· This model can be equipped with the digital transmitter and receiver to enjoy surround sound wirelessly..
8.3.1. Below is tips on using the digital receiver
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8.3.2. Tips of using digital transmitter
8.4. About HighMAT
8.4.1. 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:
lCreate a HighMAT CD or DVD which can be easily played back on consumer electronics devices such as CD and DVD players,
and car stereos.
lMove 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.
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8.4.2. 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:
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.
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8.4.3. 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 Players
HighMAT 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 CDs
HighMAT delivers a simple, standardized way for PC software and consumer electronics devices to talk to each other and work
better together.
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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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9 Accessories
Remote control
AC cord
System cable
AM loop antenna
FM indoor antenna
Speaker label
Video Cable
Speaker cable
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10 Handling Precautions for Optical Pickup Unit
The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be
taken avoid to electrostatic breakdown when servicing and handling the laser diode.
10.1. Cautions to Be Taken in Handling the Optical Pickup Unit
The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothes or human body.
Special care must be taken avoid to electrostatic discharge damage when servicing the laser diode.
1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.
2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed should
be short-circuited with a short pin or a clip.
3. The flexible cable may be cut off if an excessive force is applied to it. Use with caution when handling the flexible cable.
4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexible
cable, cut off the antistatic FPC.
10.2. Cautions to Be Taken When Replacing the Optical Pickup
The flexible cable of the optical pickup unit which was supplied as a component is equipped with a short clip to prevent the laser
diode from being damaged due to electrostatic discharge. Remove the short clip before connecting the flexible cable and make
sure that the short land is open. (If the flexible cable is short-circuited, remove the solder.)
10.3. Grounding for electrostatic breakdown prevention
Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static
electricity in the working environment. Proceed servicing works under the working environment where grounding works is
completed.
10.3.1. Worktable grounding
1. Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.
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10.3.2. Human body grounding
1. Use the anti-static wrist strap to discharge the static electricity form your body.
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11 Disassembly and Main Component Replacement
Procedure
"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 assembly 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.
· Disassembling the Top Cabinet
· Disassembling the Lid assembly (When taking out disc manually)
· Disassembling the Front Panel
· Disassembling the FL P.C.B. and Volume P.C.B.
· Disassembling the DVD mechanism Unit
· Disassembling the DVD Module P.C.B
· Disassembling the Rear panel
· Disassembling the Scart P.C.B.
· Disassembling the Main.P.C.B.
11.1. Disassembly Procedure
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11.2. Main Components and P.C.B. Locations.
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11.3. Disassembling the Top
Cabinet
Step 1 Unscrew the screw.
Step 2 Lift up and remove the top cabinet.
11.4. Disassembling the Lid
assembly (When taking out
disc manually)
· Follow the (Step 1) - (Step 2) of Item 11.3.
Step 1 Separates the gear for drawing out tray from the
mechanism unit. It inserts a screw driver in the gear. (The gear
jig)
Step 2 Insert the gear jig into the tray open/ close hole.
Step 3 Turn the gear jig counterclockwise to open the tray.
Note : Do not use force to push the tray backwards as it can
damage the mechanism unit.
Turn the gear jig clockwise to return tray.
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11.5. Disassembling the Front Panel
· Follow the (Step 1) - (Step 2) of Item 11.3.
· Follow the (Step 1) - (Step 3) of Item 11.4.
Step 1 Remove the lid assembly from the tray section.
Step 2 Detach FFC cables at connectors. (CN2008, CN2009)
Step 2 Unscrew the screws.
Step 3 Remove the front angle.
Step 4 Unscrew the screws.
Step 3 Release the tabs.
11.7. Disassembling the DVD
mechanism Unit
· Follow the (Step 1) - (Step 2) of Item 11.3.
· Follow the (Step 1) - (Step 3) of Item 11.4.
· Follow the (Step 1) - (Step 4) of Item 11.5.
Step 1 Turn the gear jig clockwise to close the tray.
Step 2 Unscrew the screws.
Step 3 Detach FFC cable at connectors. (CN2004, H2000).
Step 4 Lift up the mechanism unit vertically.
Step 4 Lift up the front panel to remove it.
11.6. Disassembling the FL P.C.B.,
Volume P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.3.
· Follow the (Step 1) - (Step 3) of Item 11.4.
· Follow the (Step 1) - (Step 4) of Item 11.5.
Step 1 Remove the volume knob.
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SA-HT885WEG
11.9. Disassembling the Rear panel
· Follow the (Step 1) - (Step 2) of Item 11.3.
Step 1 Unscrew the screws.
Step 2 Release the tabs.
11.8. Disassembling the DVD
11.10. Disassembling the Scart
Module P.C.B.
P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.3.
· Follow the (Step 1) - (Step 2) of Item 11.3.
· Follow the (Step 1) - (Step 3) of Item 11.4.
· Follow the (Step 1) - (Step 2) of Item 11.9.
· Follow the (Step 1) - (Step 4) of Item 11.5.
Step 1 Detach FFC cable at connector. (CN2005)
· Follow the (Step 1) - (Step 4) of Item 11.7.
Step 1 Unscrew the screws.
Step 2 Detach FFC cable at the connectors.(FP8251, FP8531)
11.11. Disassembling Main P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.3.
· Follow the (Step 1) - (Step 3) of Item 11.4.
· Follow the (Step 1) - (Step 4) of Item 11.5.
· Follow the (Step 1) - (Step 4) of Item 11.7.
· Follow the (Step 1) - (Step 2) of Item 11.9.
· Follow the (Step 1) of Item 11.10.
Step 1 Unscrew the screws.
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11.12. Service Position
11.12.1. Servicing position of the DVD
Module P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.3.
· Follow the (Step 1) - (Step 3) of Item 11.4.
· Follow the (Step 1) - (Step 4) of Item 11.5.
· Follow the (Step 1) - (Step 4) of Item 11.7.
· Follow the (Step 1) of Item 11.8.
· Follow the (Step 1) - (Step 2) of Item 11.9.
Step 1 Connect FFC cabel at connector. (CN2008, CN2009)
Step 2 Turn Mechanism unit to vertically position.
11.12.2. Servicing position of the Main
P.C.B.
· Follow the (Step 1) - (Step 2) of Item 11.3.
· Follow the (Step 1) - (Step 3) of Item 11.4.
· Follow the (Step 1) - (Step 4) of Item 11.5.
· Follow the (Step 1) - (Step 4) of Item 11.7.
· Follow the (Step 1) of Item 11.8.
· Follow the (Step 1) - (Step 2) of Item 11.9.
Step 1 Connect FFC cabel at connector. (CN2008, CN2009)
Step 2 Turn Main P.C.B to vertically position.
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12 Assembling and 12.2. Traverse Unit
disassembling the DVD 1. Slide the lever (A) in the arrow direction (to the opposite
side) till it stops.
mechanism Unit 2. Slide the lever (A) further by bending the tab at the right
side of the lever A in the right direction. (The right groove
12.1. Disassembly Procedure opens and the boss becomes seen.)
3. Open the lever (B) to left. (The 2 grooves at the left side
open.)
4. Remove the traverse unit
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12.3. Tray Unit
1. Slide the guide tray unit while pressing the stopper in the 5. Remove the drive arm concave phase from the tray slider
arrow direction, and remove the guide tray unit. and tray.
2. Raise the loading unit. (Assembling the tray unit)
3. Slide the lever in the arrow direction till it stops and pull the 1. Insert a part of the tray into the unit sliding over the
tray out. groove on the mechanical chassis unit.
2. Insert the tray to the point before the tab of the
mechanical chassis unit.
4. Spread the tabs at the both sides and pull the tray out. (The
tray slides a little forward and stops.)
3. Hook the drive arm concave phase over the tray and the
tray slider.
4. Press in the tray.
5. Make sure that the tray and the drive arm move
smoothly.
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4. Remove the belt.
12.4. Loading section 5. Unlock the tab and remove the pulley.
6. Remove the relay gear.
1. Spread the tabs at the both sides and push out the drive
arm shaft.
7. Turn the change lever in the arrow direction till it stops.
8. Hook the change lever spring on the change lever project
part temporarily.
2. Hook the lock lever spring on the lock lever projection part
temporarily.
3. Unlock the tab and remove the lock lever.
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9. Pull the lever (B) in the bottom side to your side and remove
the change lever.
12.6. Optical Pickup Unit
12.6.1. Procedure for Disassembling the
Optical Pickup Unit
1. Spread the tabs to push in the pin.
10. Remove the drive rack, the sub rack and the drive gear.
2. Remove the pins.
12.5. Tray Loading P.C.B.
1. Unscrew the screws
3. Remove the traverse deck.
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7. Unscrew the screw
8. Slide the shaft in the arrow direction.
4. Move the optical pickup unit in the arrow direction till it
stops.
9. Lift the optical pickup unit with the shaft.
5. Unscrew the screws.
10. Remove the optical pickup unit.
6. Remove the drive rack.
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(Assembling the optical pickup unit)
1. Pass the intermediate FPC through the frame hole.
2. Align the guide section of the optical pickup unit with the
rail.
3. Install the shaft top to the holder.
11. Pull the shaft and the rubber out.
12.7. Traverse Motor and Spindle
Motor
1. Unscrew the screws.
2. Remove the cover while lifting the inner gear.
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7. Unscrew the screws with torx screw driver (T6).
8. Remove the spindle motor.
3. Remove the solders.
4. Remove the traverse motor.
5. Remove the solders.
6. Remove the screw lock as carefully as you can.
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13 Optical Pick-up Self-Diagnosis and Replacement
Procedure
13.1. Optical Pickup Breakdown Diagnosis
The optical pickup self-diagnosis function and tilt adjustment check function have been included in this unit. When repairing, use
the following procedure for effective Self-diagnosis and tilt adjustment. Be sure to use the self-diagnosis function before replacing
the optical pickup when "NO DISC" is displayed. As a guideline, you should replace the optical pickup when the value of the laser
drive current is more than 55.
Note:
Press the power button to turn on the power, and check the value within three minutes before the unit warms up. (Otherwise,
the result will be incorrect.)
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13.2. Service Mode Table 1
The service modes can be activated by pressing various button combination on the player and remote control unit.
Player buttons Remote control unit buttons Application Note
STOP 0 Error code display (Refer to the item, "13.3.