Text preview for : Panasonic SA-VK81DEE.pdf part of Panasonic SA-VK81DEE Panasonic SA-VK81DEE



Back to : Panasonic SA-VK81DEE.part | Home

ORDER NO. MD0409420C3




DVD Stereo System
SA-VK81DEE
Colour
(S)... Silver Type




Specifications
n AMPLIFIER SECTION Phone jack
RMS Output Power : Dolby Digital Mode Terminal Stereo, 3.5 mm jack
Front Ch Mic jack
80 W per channel (6 ), 1 kHz, 10 % THD Sensitivity 0.7 mV, 600
Surround Ch Terminal Mono, 6.3 mm jack (2 system)
35 W per channel (6 ), 1 kHz, 10 % THD n CASSETTE DECK SECTION
Center Ch Type Auto Reverse
85 W per channel (6 ), 1 kHz, 10 % THD Track system 4 Track, 2 Channel
Subwoofer Head Record / Playback Solid Permalloy Head
85 W per channel (6 ), 100 Hz, 10 % THD Erasure Double Gap Ferrite Head
Total RMS Dolby Digital mode power Motor DC Servo Motor
400 W Recording System AC Bias 100 kHz
n FM / AM TUNER, TERMINALS SECTION Erase System AC Erase 100 kHz
Preset station FM 15 stations Tape Speed 4.8 cm / s
AM / MW 15 stations Overall Frequency Response ( + 3, -6 dB) at DECK OUT
Frequency Modulation (FM) Normal (TYPE I) 35 Hz - 14 kHz
Frequency range 87.50 - 108.00 MHz (50 kHz step) S / N Ratio 50 dB (A weighted)
Sensitivity 2.5 V (IHF) Wow and Flutter 0.18 % (WRMS)
S / N 26dB 2.2 V Fast Forward and Rewind Time Approx. 120 seconds with
Antenna terminals 75 (unbalanced) C-60 cassette tape
Amplitude Modulation (AM / MW) n DISC SECTION
Frequency range 522 - 1629 kHz (9 kHz step) Disc played [8 cm or 12 cm]
AM sensitivity S / N 20 dB at 999 kHz (1) DVD-RAM (DVD-VR compatible, JPEG formatted disc)
560 V / m (2) DVD-Audio
Audio performance (Amplifier) (3) DVD-Video
Input sensitivity / Input impedance (4) DVD-R (DVD-Video compatible)
Aux 250 mV, 20 k

2004 Panasonic AVC Networks Singapore Pte.
Ltd. (RCB Registration Number: 197701580H) All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-VK81DEE




(5) CD-Audio (CD-DA) Component video output (480P / 480I)
(6) Video CD Y output level 1 Vp-p (75 )
(7) SVCD (Conforming to IEC62107) P B output level 0.7 Vp-p (75 )
(8) CD-R / CD-RW (CD-DA, Video CD, SVCD, MP3, WMA, JPEG P R output level 0.7 Vp-p (75 )
formatted disc) Terminal
(9) MP3 / WMA * Pin jack (Y: green, P B : blue, P R : red) (1 system)
Compatible compression rate: n GENERAL
MP3: between 32 kbps and 320 kbps Power supply
WMA: between 48 kbps and 192 kbps AC 230-240V, 50Hz
(10) JPEG * Power consumption 275 W
Exif Ver 2.1 JPEG Baseline files Power consumption in standby mode:
Picture resolution: between 320x240 and 6144x4096 pixels 1W
(Sub sampling is 4:2:2 or 4:2:0) Dimensions (WxHxD) 250 x 330 x 372 mm
(11) HighMAT Level 2 (Audio and Image) Mass 9.6 kg
The total combined maximum number of recognizable audio and Operating temperature range + 5 C to + 35 C
picture contents and groups: 4000 audio and picture contents
Operating humidity range 5 % to 90 % RH (no
and 400 groups.
condensation)
Pick up
Wavelength (DVD / CD) 662 nm / 785 nm
n SYSTEM
Audio ouptut (Disc)
SC-VK81D(EE) Music Center: SF-VK81D (EE)
Number of channels 5.1 ch (FL, FR, C, SL, SR, SW)
Front Speaker: SB-VK81 (GC)
Audio performance (measurement at: Line out terminal)
Center Speaker: SB-PC81 (GC) x
Frequency response 1
CD-Audio 4 Hz - 20 kHz ( + 1, -2 dB) Surround Speaker: SB-PS81 (GC)
n VIDEO SECTION x2
Video system Subwoofer: SB-WVK81 (GC) x 1
Signal system PAL625 / 50, PAL525 / 60, NTSC SF-VK81D EE-S consists of SA-VK81D EE-S & SB-PT81GC-S
Composite video output SB-PT81 GC-S consists of SB-PS81 (GC) x 2 & SB-PC81 (GC) x 1
Output level 1 Vp-p (75 ) SB-VK81D GC-S consists of SB-VK81 (GC-S) x 2 & SB-WVK81 (GC-
Terminal Pin jack (1 system) S) x 1

S VIDEO output Notes:

Y output level 1 Vp-p (75 ) 1. Specifications are subject to change without notice. Mass and
dimensions are approximate.
C output level 0.3 Vp-p (75 ) (PAL)
2. Total harmonic distortion is measured by the digital spectrum
0.286 Vp-p (75 ) (NTSC)
analyzer.
Terminal S terminal (1 system)




CONTENTS
Page Page
1 Before Repair and Adjustment 3 6.2. Replacing Precautions for Optical Pickup Unit 6
2 Protection Circuitry 4 6.3. Grounding for Preventing Electrostatic Destruction 6
3 Safety Precautions 4 7 Precaution of Laser Diode 7
3.1. General Guidelines 4 8 Accessories 8
4 Prevention of Electro Static Discharge (ESD) to 9 Operation Procedures 9
Electrostatically Sensitive (ES) Devices 5 10 Disc information 11
5 Handling the Lead-free Solder 5 11 About HighMAT 13
5.1. About lead free solder (PbF) 5 11.1. What is HighMAT? 13
6 Cautions to be taken when handling Optical Pickup 6 11.2. Why use HighMAT? 13
6.1. Handling Optical Pickup 6 11.3. The advantages of using HighMAT 13



2
SA-VK81DEE




11.4. Outline of the HighMAT standard 14 17.2. Checking the Main P.C.B., Power P.C.B., Power Supply
12 Procedure for repairing the set 16 P.C.B., Power Amp P.C.B., Transformer P.C.B. and AC
12.1. Distinguish the problem 17 Inlet P.C.B. 64
12.2. Diagnosis of Optical Pick-up Unit 20 17.3. Checking the Panel P.C.B., Tact Switch P.C.B., Mic
13 Optical Pickup Self-Diagnosis and Replacement Procedure 22 P.C.B., Deck P.C.B. & Deck Mechanism P.C.B. 65
13.1. Self-diagnosis 22 18 Measurements and Adjustments 66
13.2. Cautions to Be Taken During Replacement of Optical 18.1. Cassette Deck Section 66
Pickup and Spindle Motor 23 18.2. Tuner Section 67
14 Self-Diagnosis Function 24 18.3. Alignment Points 68
14.1. Automatic Displayed Error Codes 24 19 Block Diagram 69
14.2. Memorized Error Codes 24 20 Schematic Diagram 78
14.3. Mode Table 1 24 20.1. Optical Pickup Unit Circuit 79
14.4. DVD / CD Self-Diagnosis Error Code Description 25 20.2. (A) DVD Module Circuit 80
14.5. Error Codes Stored During No Play 25 20.3. (B) Main Circuit 87
14.6. Mode Table 2 25 20.4. (C) Panel Circuit , (D) Mic Circuit & (E) Tact Switch
14.7. Tray Lock Function 28 Circuit 96
14.8. Things to Do After Repair 28 20.5. (F) Deck Circuit & (G) Deck Mechanism Circuit 100
15 Cautions To Be Taken During Servicing 29 20.6. (H) Power Supply Circuit 102
15.1. Recovery after the dvd player is repaired 29 20.7. (I) Power Amp Circuit 104
15.2. DVD Player Firmware Version Upgrade Process 29 20.8. (J) Power Circuit 105
15.3. Firmware Version Upgrade Process by Using Disc and 20.9. (K) Transformer Circuit, (L) AC Inlet Circuit & (M) CD
Recovery Process 29 Loading Circuit 107
15.4. Using Recovery Disc 29 21 Printed Circuit Board 108
15.5. Total Usage Time Display 30 21.1. (A) DVD Module P.C.B. (Side: A & B ) 108
15.6. After replacement of DVD Module 30 21.2. (B) Main P.C.B. 110
16 Disassembly and Assembly of Main Component 31 21.3. (C) Panel P.C.B. 112
16.1. Disassembly flow chart 31 21.4. (D) Mic P.C.B. & (E) Tact P.C.B. 114
16.2. Disassembly of Top Cabinet 32 21.5. (F) Deck P.C.B. & (G) Deck Mechanism 115
16.3. Disassembly for DVD changer unit 32 21.6. (H) Power Supply P.C.B. 116
16.4. Disassembly for Panel P.C.B., MIC P.C.B. & Tact Switch 21.7. (I) Power Amp P.C.B. & (M) CD Loading P.C.B. 117
P.C.B. 32 21.8. (J) Power P.C.B. 118
16.5. Disassembly of Main P.C.B., Power P.C.B., Power Amp 21.9. (K) Transformer P.C.B. 120
P.C.B., Power Supply P.C.B., & Transformer P.C.B. 34 21.10. (L) AC Inlet P.C.B. 121
16.6. Replacement for traverse deck 37 22 Wiring Connection Diagram 122
16.7. Replacement for optical pickup unit (DVD mechanism) 37 23 Illustration of ICs, Transistors and Diodes 124
16.8. Procedure for removing CD loading mechanism 40 24 Terminal Function of IC 125
16.9. CR16 mechanism disassembly procedure 40 24.1. IC6800 (C2CBJG000486) System Microprocessor 125
16.10. CR16 MECHANISM ASSEMBLY PROCEDURE 46 25 Parts Location and Replacement Parts List 127
16.11. Disassembly for Traverse Unit 57 25.1. Deck Mechanism (RAA3412-S) 128
16.12. Disassembly of Deck Mechanism Unit 59 25.2. DVD Loading Mechanism 131
16.13. Replacement for the cassette lid ass ' y 63 25.3. Cabinet 135
16.14. Counter-measure for tape trouble 63 25.4. Electrical Parts List 138
17 Service Position 64 25.5. Packing Materials & Accessories Parts List 151
17.1. Checking Procedure 64 25.6. Packaging 152




1 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C5815~C5818, C5829~C5830, C5835~C5836 and C5841 through a
10, 5W resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 230V, 50 Hz in NO SIGNAL should be ~ 700 mA (at volume min, in CD mode).




3
SA-VK81DEE




2 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.


3 Safety Precautions
3.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

3.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis,the reading should be between 1M and 5.2M.
When the exposed metal does not have a return path to the chassis, the reading must be .




Figure 3.1

3.1.2. Leakage Current Hot Check
(See Figure 3.1)
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5k, 10 watts resistor, in parallel with a 0.15F capacitor, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 3.1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may
be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is out ofthe limits
specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to
the customer.




4
SA-VK81DEE




4 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 transistorsand
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,
whichshould 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 orcomparable
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
todamage an ES device).




5 Handling the Lead-free Solder
5.1. About lead free solder (PbF)
Distinction of PbF P.C.B.:
P.C.B.s (manufactured) using lead free solder will have a PbF stamp on the P.C.B.
Caution:
Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70F (30 - 40C) higher. Please
use a high temperature soldering iron. In case of soldering iron with temperature control,please set it to 700 20F (370
10C).
Pb free solder will tend to splash when heated too high (about 1100F/600C).
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.




5
SA-VK81DEE




6 Cautions to be taken when handling Optical Pickup
The laser diode used inside optical pickup could be destroyed due to static electricity as a potential difference is caused by
electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic destructionduring
repair.

6.1. Handling Optical Pickup
1. Do not impact on optical pickup as the unit structurally uses an extremely precise technology.
2. Short-circuit the flexible cable of optical pickup remove from the circuit board using a short-circuit pin or clip in order to prevent
laser diode from electrostatic destruction (Refer to Fig. 6.1 and Fig. 6.2)
3. Do not handle flexible cables forcibly as this may cause snapping. Handle the parts carefully (Refer to Fig. 6.1)
4. A new optical pickup is equipped with an anti-static flexible cable. After replacing and connecting to the flexible board, cut the
anti-static flexible cable. (Refer to Fig. 6.1)




Fig. 6.1


6.2. Replacing Precautions for Optical Pickup Unit
DVD/CD Optical Pickup
The optical pickup by which part supply was carried out attaches the short clip to the flexible board for laser diode electrostatic
discharge damage prevention. Please remove the short clip and be sure to check that the short land is open, beforeconnecting.
(Please remove solder, when the short land short-circuits.)

6.3. Grounding for Preventing Electrostatic Destruction
1. Human body grounding
Use the anti-static wrist strap to discharge the static electricity accumulated in your body. (Refer to Fig. 6.2)
2. Work place grounding
Place a conductive material (conductive sheet) or ironboard where optical pickup is placed. (Refer to Fig. 6.2)
Note :
Keep your clothes away from optical pickup as wrist strap does not release the static electricity charged in clothes.




Fig. 6.2




6
SA-VK81DEE




7 Precaution of Laser Diode
Caution :
This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens.
Wavelength : 662 nm(DVD)/785 nm(CD)
Maximum output radiation power from pick up : 100 W/VDE
Laser radiation from pick up unit is safety level, but be sure the followings:
1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pick up unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pick up lens for a long time.
CAUTION!
THIS PRODUCT UTILIZES A LASER.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.

n Use of Caution Labels




7
SA-VK81DEE




8 Accessories



Remote
control




AC cord




FM antenna




AM antenna




Video cable




8
SA-VK81DEE




9 Operation Procedures




9
SA-VK81DEE




10
SA-VK81DEE




10 Disc information




11
SA-VK81DEE




12
SA-VK81DEE




11 About HighMAT
11.1. What is HighMAT?
This word combines the abbreviations of Matsushita Electric Industrial Co. Ltd. and High Performance Media Access Technology,
and is a trademark of Microsoft Corporation. The products with the HighMAT logo shown below are made according to the
HighMATstandard.
HighMAT is a format that allows users to save digital contents such as photographs, audio, and images on a CD. This gives
consistency in the way of reading data when general consumer products (such as DVD players) and PCs are used, and thus, itis
easy to operate for the user.

11.2. Why use HighMAT?
Up to now, there was no harmonized standard from playing digital content stored in CD-ROM formats (including CD-R) on
consumer products like DVD players.Therefore, we used to have problems such as follow:
There was no common play list or attached information on contents, which is called metadata.
The data compression method differed according to the equipment.
As the number of CD-ROMs recorded increased retrieved the contents became more difficult.
Because display and operation methods were different depending on the equipment, the play order of the content on the same
disc could change.

11.3. The advantages of using HighMAT
Applying the HighMAT standard will solve the following problems and will improve usability.
It will create a common user interface for both PC and consumer products.




Regardless of the types of consumer products, such as DVD players, portable CD players, car stereos, and micro computers,
a consistent way to pay for digital content will be created and it will make it easier to retrieve data.




13
SA-VK81DEE




You can also play digital content on the disc, which was created in accordance with the HighMAT format with a conventional
CD-ROM player.

11.4. Outline of the HighMAT standard
1. Recording medium
CD-R/CD-RW
Supports ISO 9660 Level Expanded Joliet
For multiple session




2. Support data format
Level 1 player: WMA, MP3 (MPEG-1 Audio Layer 3)
Level 2 player: WMA, MP3 (MPEG-1 Audio Layer 3), JPEG
Level 3 player: WMA, MP3 (MPEG-1 Audio Layer 3), JPEG, WMV, MPEG4 (optional)
3. Limitation of data format



14
SA-VK81DEE




WMA, MP3 (MPEG-1 Audio Layer 3) 64 kbps - 160.999 kbps, 44.1 KHz, stereo, fixed bit rate/ variable bit rate.
WMA, V2 and above, excluding Lossless/Voice/Pro
JPEG: Max 6M pixel, Maximum file size: 3 MB
4. Limitations regarding the number of files on the media, etc.
Total number of audio files: Maximum 450
Total number of still picture files: Maximum 999
Total number of animation files: Maximum 200
Total number of directories: Maximum 400
Length of a file name: Maximum 108 characters (Unicode)
Total number of play lists: Maximum 200
Number of contents in the playlist: Maximum 900
5. Composition of HighMAT disc
Menu: Classified for the navigation of the HighMAT digital contents. When menu selected, its submenu or the play list will
be displayed.
Play list: A list in which one or more digital contents are arranged in order
Group: Sub-divided group of a play list.
Digital Contents: Audio, still picture, and animation data.




15
SA-VK81DEE




12 Procedure for repairing the set




16
SA-VK81DEE




12.1. Distinguish the problem




How to distinguish the trouble
1. View mechanical part if visual damage occurred.
Confirm the movement of mechanical parts assembly (tray ass'y, loading mechanism ass'y, etc.).
2. Diagnose if Optical Pickup Unit is faulty (refer to diagnosis of Optical Pickup Unit).
3. If mechanism and OPU are OK, it is P.C.B.

12.1.1. Troubleshooting Guide Part 1
Checking Points Possible Faults Possible Reasons Countermeasure
AC Inlet Circuit 1. Failure to power-up Wrong selection of AC Replace of fuse if found faulty.
the main unit. power to main unit.
Replace of AC Inlet if found faulty or damaged.
2. Power On switch
AC inlet JK500 is faulty.
Replace AC Line filter is found faulty or damaged.
AC Line filter L500 is
Replace Power On button switch if necessary.
faulty.
If conditions as mentioned above is in good condition.
Power On switch broken.
Check for wire connection. (W1/W2). If connection is
good, please proceed to check for Transformer Circuit.
3. Intermittent Power Check for connection. If condition 1 to 4 as mentioned above is in good
supply to main unit. condition. Check for wire connection. (W1/W2). If
connection is good, please proceed to check for
Transformer Circuit




17
SA-VK81DEE




Checking Points Possible Faults Possible Reasons Countermeasure
Transformer Circuit 1. No power supply Transformer no output Replace of Transformer T501 if found faulty.
voltage to the Power voltage.
Replace of Power Relay if found faulty.
Circuit from AC In.
Power Line filter relay
RL502.
D950 open circuit.
Power Circuit 1. No supply voltage to Fuse F3/F4 blown. Replace fuse F3/F4 if found faulty.
Power Supply Circuit
Rectifier Circuit problem. Replace D5832/D5831/D5846/D5847 if any is found to
from Transformer
be faulty or damage.
Circuit. (+VccL/+VccH/-
VccL/-VccH)
1. No supply voltage to Rectifier Circuit problem. Replace D5844 if found faulty.
Main & Power Supply
F5801/FP5802 open Replace FP5801/FP5802 of the same type as indicated
Circuit from
circuit. in the part-list if found faulty.
Transformer Circuit.
(+VccL/+VccH/-VccL/-
VccH)
1. No supply voltage to Q5815/D5835 faulty. (-VP Replace Q5815/D5835 if found faulty.
Panel Circuit. voltage not sufficient to
Replace Q5816/D5839 if found faulty.
power FL display at - 30V)
Q5816/D5839 faulty. (Sys
6V not sufficient to power
micro-processor IC at 6V.
Power Amp Circuit 1. No output FL/FR No supply voltage to Replace IC5803 if found faulty.
output signal. IC5803. (+VccL/+VccH/-
VccL/-VccH/+Vd/-Vd).
Power Supply Circuit 1. No +9V/- IC5802 problem. (Check Replace IC5802 if found faulty.
9V/SW5V/8V/LED9V/M pin 2,8,9,10,11 for
010V Supply Voltage to voltages)
Main Circuit.
2. No output SL/SR/C IC5801 problem. (Check Replace IC5801 if found faulty.
signal (Check for input pin 1,2,5 for output signal)
signal before
troubleshooting for
IC5801.)

12.1.2. Troubleshooting Guide Part 2
Checking Points Possible Faults Possible Reasons Countermeasure
Deck Circuit 1. No PLAYBACK IC1001 problem. (Check Replace IC1001 if necessary.
(PB)/Rec signal. pin 23/24 for PB input, pin
Replace Q1013/Q1012 if necessary.
5/20 for PB output).
Replace Q1020/Q1021 if necessary.
Q1013/Q1012 shorted to
ground with no muting
OFF.
Q1020/Q1021 shorted to
ground with no muting
OFF.
2. Bias frequency. L1002 /IC1004/ Replace these components if necessary when level is
Q1004/Q1005 problem. below specification.
Check level of bias
frequency and oscillation.
3. No supply voltage See section on Panel
(+B/M0+B) Circuit.
Panel Circuit 1. FL No Display -Vp too low to power FL See section on Power Circuit.
display.
Replace IC6803 is faulty.
FL Display Driver IC
problem. (IC6803)
2. Error codes See section on error codes
(Micro-processor IC6800)
Main Circuit 1. Audio Signal (I/P & Check for IC2815. Replace IC2815 if faulty.
O/P) problem.
2. Video Signal Refer to below section.
problem.

12.1.3. Checking of VIDEO COMPONENT OUTPUT
VIDEO Y C CR/PR/R CB/PB/B PY/Y/G
SIGNAL
Input Pin 5 (IC2809) Pin 3 (IC2809) Pin 14 (IC2809) Pin 12 (IC2809) Pin 8 (IC2809)

VIDEO Y C CR CB/PB/B PY
SIGNAL
Output Pin 24/25 (IC2809) Pin 32 (IC2809) Pin 17 (IC2809) Pin 19 (IC2809) Pin 21/22 (IC2809)



18
SA-VK81DEE




Terminal Defination (IC2809 - C9ZB00000377)
Pin No Pin Name Pin Description
21/22 PYOUT1/PYOUT2 Signal Output Terminal for luminance signal (progressive type)
17/19 CrOUT/CbOUT Signal Output Terminal for color-difference signal
32 COUT Signal Output Terminal for chroma signal
29/30 MIXOUT1/MIXOUT2 Signal Ouptut Terminal for Y/C Mix Signal
24/25 YOUT1/YOUT2 Signal Output Terminal for luminance signal (interlaced type)
3/12/14 CIN/CBIN/CRIN Input signal terminal for chroma signal and color difference
5/8 YIN/PYIN Input signal terminal for luminance signal




19
SA-VK81DEE




12.2. Diagnosis of Optical Pick-up Unit




How to distinguish Laser destruction/damage
Confirmation 1
Remove cover of mechanism block so that you will see the lens of optical pickup.
Confirm emission of laser at the moment when power switch is turned on.
If there is no laser emission, laser diode is faulty.
Confirmation 2



20
SA-VK81DEE




While press and hold "STOP" on main unit , press "Display" button on the remote controller. Unit display laser current on FL.
From the reading of display, you can judge if laser diode is damaged or not.
Reading on the right side should be less than 70. If reading is more than 70, laser is damaged.
How to confirm if Optical Pickup is OK
Confirmation 1
1. Confirmation of jitter value with test disc. (Refer below for how to check jitter)
2. Lens cleaning.
3. Reconfirm jitter value.
4. Perform tile adjustment. (Refer to tilt adjustment)
5. Reconfirm jitter value. (To confirm jitter value, while pressing "STOP" on main unit and "5" on remote controller.)
Unit display jitter value on FL.
Confirmation 2
If servo is very unstable due to optical error and you cannot confirm jitter value, clean the lens and check appearance of pick
up unit (cutting coil of actuator, etc), then check circuitry.




21
SA-VK81DEE




13 Optical Pickup Self-Diagnosis and Replacement
Procedure
13.1. Self-diagnosis
This unit is equipped with the optical pickup self-diagnosis function and the tilt adjustment check function. Follow the procedure
described below during repair in order to perform self-diagnosis and tilt adjustment effectively. Especially when "NODISC" is
displayed, be sure to apply the self-diagnosis function before replacing with an optical pickup. Replacement of optical pickup
generally requires when the present value of laser drive exceeds 45 (DVD) or 45 (CD).
Note:
Start diagnosis within three minutes after turning on the power (as diagnosis fails when the unit becomes warm).




22
SA-VK81DEE




13.2. Cautions to Be Taken During Replacement of Optical Pickup and
Spindle Motor
Before replacing the optical pickup and spindle motor, check a total usage time respectively. Follow the checking method described
below.
Item Status and Key Function Display
Checking DVD, CD laser usage time With the unit stopped and no disc inserted, T1_xxxx_yyyy
press the. button on the player and the xxxx(DVD), yyyy(CD): total time is displayed with a
buttonon the remote controller unit. four-digit number by the ten hours.
Checking spindle motor usage time With the unit stopped and no disc inserted, T2_xxxxx
press the button on the player and the xxxxx: total time is displayed with a four-digit
buttonon the remote controller unit. number by the ten hours.
Resetting DVD, CD laser usage time While the DVD and CD laser usage times are T1_0000_0000
displayed, press the button on the player
and the button on the remote controller
unit.
Resetting spindle motor usage time While the spindle motor usage time is T2_0000
displayed, press the button on the player
and the buttonon the remote controller
unit.


13.2.1. Cautions to be taken during replacement of optical pickup
Optical pickup could be damaged due to the static electricity discharged from human body. Wear proper protection gear against
static electricity during optical pickup and its peripheral repair. (Refer to "Cautions to Be Taken When HandlingOptical Pickup".)
Do not touch laser diode, actuator and their peripherals.
Do not check laser diode with a tester and such. (The tester will be destroyed.)
For short-circuiting or removing laser diode, the use of an anti-static soldering iron is recommended. (Recommended model:
HAKKO ESD product)
Solder the land of the flexible cable in the optical pickup.
Note:
If an anti-static soldering iron is not available, short-circuit the terminal surface of the flexible cable and then the land using a
clip or equivalent device.




23
SA-VK81DEE




14 Self-Diagnosis Function
This unit is equipped with the self-diagnosis function, which displays an error when it occurs, for use during servicing.

14.1. Automatic Displayed Error Codes
14.1.1. Automatic Display Function
For a power unit error, the code is automatically displayed.
F61: Automatically displayed on the LCD of the player.

14.1.2. Re-Display
For F61 Display
- When the code, F61 is displayed, the power is automatically turned off.
- The code, F61 is displayed for three seconds, and then the current time appears.
- To retrieve the code, turn on the power button so that the code F61 appears, however, is switched to time display after three
seconds, and the power is automatically turned off.
For F76 Display
- The abnormalities is an output or the abnormalities in a power supply of POWER AMP.

14.1.3. Description of Error Code
14.1.3.1. F61
State, Condition
When the power is turned on, the unit is automatically turned off. The power does not turn on.
Cause, Troubleshooting
Power circuit system failure and/or direct current flown to speaker terminal
Identify the cause and replace with new parts.

14.2. Memorized Error Codes
14.2.1. Activating Self-Diagnosis Function and Displaying Method
1. Turn on the power.
2. Select DVD/CD function. With no DVD/CD inserted in the player, press and hold down the button for at least two seconds,
and press the "0" buttonon the remote control for at least two seconds in order to display "DVD_F_ _ _ ".
3. Press the button. If a memorized error is detected, the result of self diagnosis is displayed. (Ex.: T H15)
If several errors are detected, press the button to display each.

14.2.2. Re-Display
Press the power button to turn off the power, and then turn on the power.
The details of self diagnosis are stored in the unit memory.
To retrieve them, follow the procedure described the above, "Activating Self-Diagnosis Function and Displaying Method".

14.3. Mode Table 1
Following modes are available with combinations of the pressed buttons on the player and on the remote controller unit.
Player Remote Controller Unit Usage
0 Error code display (Refer to the Item 15.4. DVD Error Code Description)
button 5 Tilt adjustment (Jitter)
6 Region number and broadcasting system check
8 Bulit-in program version check (Micro-P)
DISPLAY DVD laser drive current check
3 CD laser drive current check
PAUSE Writing of laser drive current value after replacement of optical pickup
(Do use this function only when optical pickup is replaced.)
Initialization of the player (factory setting is restored.)
Used after replacement of micro-computer and its peripherals and printed circuit board.




24
SA-VK81DEE




14.4. DVD / CD Self-Diagnosis Error Code Description
Error Code State, Conditon Cause, Troubleshooting
H15 The disc tray cannot be opened: it closes spontaneously. Disc tray open/close detection switch (S1001) failure.
H16 The disc tray cannot be closed: it opens spontaneously. (Check and replace)

Error Code Meaning Details
U. H. Error
U11 Focus servo failure
H01 Tray loading failure
H02 Spindle servo failure (Spindle servo, DSC, SP motor, CLV servo failure)
H03 Traverse motor failure
H04 Tracking servo error
H05 Seek timeout failure
H06 Power supply error
DSC system
F500 DSC failure DSC stops due to servo failure.
(Startup, focus failure, etc.)
F501 DSC not Ready failure Communication failure between DSC and system computer
(No communication because DSC does not move)
F502 DSC Time out failure See F500.
F503 DSC communication failure Communication failure (Result failure occurs after communication
command is transmitted.)
F505 DSC Attention Error See F500.
F506 Invalid media Disc is placed upside down; TOC is unreadable or invalid disc is
inserted.
Disc Code
F103 Ilegal highlight position Disc standard is possibly illegal when highlight is displayed.
IIC Error
F4FF Forced initialization failure (Time out)
F880 Unsuitable task number When a message arrives from not existing task
F890 A message is sent during AV task transmission During transmission of a message to AV task
F891 Unable to transmit a message to AV task When transmission of a message to AV task starts
F893 DVD Module problem Check for firmware version
F894 EEPROM failure
F895 Firmware compatibility problem Check for firm version for Main & DVD Module P.C.B.
F897 Initialization is not done properly Follow proper steps for initialization & reset
F8A0 Unsuitable message command When transmission of a message to AV task starts


14.5. Error Codes Stored During No Play
Error Code Meaning System Computer Item Setting Task Internal error in system
computer
F0BF 6) Unable to replay due to physical layer PCND_NOPLAY_PHYSICAL 0x50 DriveManager 0xD0BF
identification failure
F0C0 8) DVD: Unable to replay due to no DVD PCND_NOPLAY_VIDEO 0x70 DiscManager 0xD0C0
Video/Audio/VR
F0C1 9) DVD: Prohibited due to illegal regional PCND_NOPLAY_RCD 0x80 DiscManager 0xD0C1
code
F0C2 A) DVD: No replay due to PAL system PCND_NOPLAY_PAL 0x90 DiscManager 0xD0C2
F0C3 B) DVD: All title replay prohibited in parental PCND_NOPLAY_PTL 0xA0 DiscManager 0xD0C3
setting
F0C4 C) VCD: Prohibited due to PHOTO CD PCND_NOPLAY_PHOTOCD 0xB0 DiscManager 0xD0C4
format
F0C5 D) VCD/CD: Prohibited due to CD-ROM PCND_NOPLAY_CDROM 0xC0 DiscManager 0xD0C5
without CD-DA


14.6. Mode Table 2
Following modes are available with combinations of the pressed buttons on the player and on the remote controller unit.




25
SA-VK81DEE




Item Operational Details Display TO Exit Mode
Condition and Key
Function
Jitter display While the player is Jitter display J*1 xxx*2 _yyy *3 _zz*4 Press the STOP or
stopped and no disc is Measures and displays jitter. OPEN button.
inserted, press and Measurement is repeated every *1 : Jitter display mode
hold down the second. Read error counter starts at 0 *2 : Jitter measurement value
button on the player at the mode setting, and increased by *3 : Readerror counter
and the number one as data read fails at target block. A *4 : Focus driving value
button, "5" on small defectis allowed to correct by
theremote controller retry. Any possibility is counted as one
unit. increment. Repetitive errors after retry
increase by two levels or more. Values are shown to one decimal
place in the decimal digit.Focus
driving value is displayed in the
hexadecimal digit.
Error code display While the player is Error code display DVDnn_F--- Press the OPEN
stopped and no disc is Displays the latest error code stored in *nn: Error history button.
inserted, press and EEPROM. *--: Error number
hold down the DVD 01 FOBF
button on the player
and the number
button, "0" on
theremote controller
unit.
Measurement of laser While the player is Measurement of laser current LDO*1 _013*2 _032*3 Automatically exits
current electricity stopped and no disc is electricity initialization value the mode after five
initialization value inserted, press and Memorizes each initialization value of *1 : Laser current electricity seconds.
hold down the DVD and CD in EEPROM. measurement mode
*2
button on the player : DVD current electricity value
*3
and the button : CDcurrent electricity value
on the remote
controller unit.

Values are shown in the decimal
digit. The above example indicates
that the current electricity
initialization value is 13mA at DVD
laser and 32mA at CD laser when
laser is turned on.
Measurement of DVD While the player is Measurement of DVD laser current LDD*1 _012*2 _014*3 Automatically exits
laser current electricity stopped and no disc is electricity the mode after five
inserted, press and Measures DVD laser current electricity *1 : DVD laser current electricity seconds.
hold down the and displays the result together with measurement mode
*2
button on the player the initialization value stored in : Current electricity
and the DISPLAY EEPROM. After measurement, DVD initializationvalue stored in
button on the remote laser is lit tillthe power is turned off (or EEPROM
controller unit. goes off when the primary power is *3 : Present value of current
turned off). electricity



Values are shown in the decimal
digit. The above example indicates
that the current electricity
initialization value is 12mA and
itspresent value is 14mA.
ADSC internal RAM While the player is ADSC internal RAM display A*1 _FB0*2 _0000*3 Press the STOP or
display stopped and no disc is Reads and displays the RAM value OPEN button.
*1
inserted, press and inside ADSC. The address is renewed :ADSC internal RAM display
hold down the when the CLEAR key is pressed so mode
*2
button on the player that the values at eleven points appear. : Address
*3
and the number button : RAM value atdisplayed
"1" or "2" onthe remote address
controller unit.


Values are shown in the
hexadecimal digit. The above
example indicates that ADSC
valu