Panasonic dvd s 77 pp service manual

Page 2

1CD Audio: 115 dB
(3) Dynamic range:
IDVD (linear audio): 102 dB
1CD Audio: 98 dB
(4) Total harmonic distortion:
1CD Audio: 0.0025 %

Digital audio output:

Optical digital output: Optical terminal

Coaxial digital output: Pin jack
HDMI AV output: 19 pin
Pickup
Wave length: 662 nm/785 nm
Laser power: CLASS IIA lCLASS l
(U.S.A.)
CLASS 2 /CLASS 3A
(Canada)

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

This model uses lead free solder (PbF).

Manutactured under license from Dolby Laboratories. Dolby, Pro Logic"
and the doublerD symbol are trademarks of Dolby Laboratories.

"DTS" and "DTS Digital Surround" are registered trademarks of
Digital Theater Systems, Inc.

Apparatus Claims of U.S. Patent Nos. 4,631,603,4,577,216, and
4.819.098. licensed for limited viewing uses only.

This product incorporates copyright protection technology that is protected
by method claims of certain U.S. patents and other intellectual property
rights owned by Macrovision Corporation and other rights owners. Use 01
this copyright protection technology must be authorized by Macrovision
Corporation, and is intended for home and other limited viewing uses only
unless otherwise authorized by Macrovision Corporation. Reverse
engineering or disassembly is prohibited.

MPEG Layer-3 audio decoding technology licensed trom Fraunhoter IIS
and Thomson multimedia.

Windows Media, and the Windows logo are trademarks,
or registered trademarks of Microsolt Corporation in the
United States and/or other countries.

WMA is a compression format developed by Microsolt
Corporation. It achieves the same sound quality as MP3
With atile size that is smaller than that 01 MP3.

HighMATw and the HighMAT logo are either trademarks or

registered trademarks 01 Microsoft Corporation in the H

United States and/or other countries. m Fl T
'- HDCD , High Detin ition Compatible Digitalw and Pacitic

Microsonics are either registered trademarks or trademarks of Pacific
Microsonics, Inc. in the United States and/or other countries.

HDCD system manutactured under license lrom Pacitic Microsonics, Inc.
This product is covered by one or more of the tollowing: In the USA :
5,479,168, 5,638,074, 5,640,161, 5,808,574, 5,838,274, 5,854,600,
5,864,311, 5,872,531, and in Australia: 669114, with other patents pending.

HDMI. the HDMI logo and High-Definition Multimedia Intertace are
trademarks or registered trademarks ot HDMI Licensing LLC.

& WARNING

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 sen/iced or repaired only by experienced protessional technicians. Any attempt to service
or repair the product or products dealt with in this service intormation 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 --

5.1. Grounding for electrostatic breakdown prevention --

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 ---------------------------- 7
6.3. Top Panel ---------------------------------------------------------- 8
6.4. Tray (When taking out disc manually) ------------------------ 8
6.5. Front Panel -------------------------------------------------------- 9
6.6. Mechanism Unit ------------------------- -9
6.7. Front (L) P.C.B. and Front (R) P.C.B -9

Page

6.8. Rear panel -------------------------------------------------------- 10
6.9. Module P.C.B. --------------------------------------------------- 10
6.10. Mother P.C.B. .................................................... 10
6.11. Power supply P.C.B. -------------------------------------------- 10
6.12. Sen/ice Position ................................................. 11

7 ASSEMBLING AND DISASSEMBLING THE MECHANISM UNIT

7.1. Disassembly Procedure -

7.2. Traverse Unit -----------

7.3. Tray ---------------------------------------------------------------- 13
7.4. Loading section -------------------------------------------------- 14
7.5. Intermediate P.C.B. --------------------------------------------- 15
7.6. Optical Pickup Unit ---------------------------------------------- 16
7.7. Traverse Motor -------------------------------------------------- 19
8 Self-Diagnosis Function and Service Modes -------------------- 21

8.1. Optical Pickup Breakdown Diagnosis
8.2. Service Mode Table 1