Panasonic dvd k 47 gcs service manual

Page 2

DVD-KITGCS / DVD-KAWGCU

lCD audio: 4 HZ-20 kHz
(2) S/N ratio:

lCD audio: 115 dB
(3) Dynamic range:

lDVD (linear audio): 100 dB

lCD audio: 98 dB
(4) Total harmonic distortion:

lCD audio: 0.0025 /0

Digital audio output:

Optical digital output: Optical terminal

Coaxial digital output: Pin jack
Pickup
Wave length: 662 nm/785 nm

Laser power: CLASS 2/CLASS 8A

Note:
Specifications are subject to change without notice.
Mass and dimensions are approximate.
Solder:

This model uses lead free solder (PbF).

MPEG Layer-3 audio decoding technology licensed from Fraunhofer
IIS and Thomson multimedia.

Windows Media. and lhe Windows logo are

trademarks, or registered trademarks of .
Microsoft Corporation in the United States and/ .
or other countries. ....

WMA is a compression format developed by
Microsoft Corpomtion. It achieves the same
sound quality as MP3 with a file size that is Medla'
smaller than that of MP3.

HGH
m

HighMAT and the HighMAT logo are either
trademarks or registered trademarks of
Microsoft Corporation in the United States and/
or other countries.

I Built-in decoders n l c r r A l.
You can play discs With these symbols. D m
n I o l T A I.

SURROUND

AWARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

CONTENTS

Page
1 SAFETY PRECAUTIONS --------------------------------------------------------- 4
1.1. GENERAL GUIDELINES ------------------------------------------------ 4

2 PREVENTION OF ELECTRO STATIC DISCHARGE (ESD) To
ELECTROSTATICALLY SENSITIVE (ES) DEVICES 4
3 Precaution of Laser Diode ------------------------------------ 5
4 About lead free solder (PbF) --------------------------------------------------- 5
5 PREVENTION OF STATIC ELECTRICITY DISCHARGE ------------ 6
5.1. Grounding for electrostatic breakdown prevention ------------ 6

5.2. Handling Precautions for Traverse Unit (Optical Pickup) --6
6 DISASSEMBLING THE CASING AND CHECKING P.C.B.S ------ 7
6.1. Disassembly Procedure ----------------------------------------------- 7
6.2. Casing Parts and P.C.B. Positions-

6.3. Top Panel-

6.4. Tray (When taking out disc manually)

6.5. Front Panel -------------------------------------------------------------------- 8

6.6. Module P.C.B. --------------------------------------------------------------- 9

6.7. Mic P.C.B., Front (L) P.C.B. and Front (R) P.C.B. ----------- 9

6.8. Mechanism Unit ----------------------------------------------------------- 10

6.9. Rear panel ------------------------------------------------------------------- 10
6.10. Power supply P.C.B. ---------------------------------------------------- 10
6.11. Mother P.C.B. -------------------------------------------------------------- 10

6.12. 5.1CH P.C.B. --
6.13. Service Position-
7 ASSEMBLING AND DISASSEMBLING THE MECHANISM UNIT
.............................................................................................. 12

Page
7.1. Disassembly Procedure ------------------------------------------------ 12
7.2. Traverse Unit --------------------------------------------------------------- 12

7.8. Tray ---------------
7.4. Loading section-
7.5. Intermediate P.C.B.

7.6. Optical Pickup Unit ------------------------------------------------------- 16
7.7. Traverse Motor and Spindle Motor -------------------------------- 19
8 Self-Diagnosis Function and Service Modes ------------------------ 21
8.1. Optical Pickup Breakdown Diagnosis ---------------------------- 21
8.2. Service Mode Table 1 -------------------------------------- 22

8.3. DVD Self Diagnostic Function-Error Code --------------------- 22
8.4. Last Error Code saved during NO PLAY-
8.5. Service mode table 2 --

8.6. Sales demonstration lock function-

8.7. Handling After Completing Repairs ------------------------------- 26

9 Service Precautions .............................................................. 27
9-1- Recovery after the dvd player is repaired ---------------------- 27

9.2. Firmware version-up of the DVD player ......................... 27

10 ADJUSTMENT PROCEDURES ............................................... 23
10.1. Service Tools and Equipment ....................................... 28
10.2. Important points in adjustment ...................................... 28

10.3. Storing and Handling Test Discs

10.4. Optical adjustment

11 Abbreviations ................
12 VOLTAGE CHART _________________________________________________________________ 32