Panasonic dvd rv 30 br service manual

Page 2

A WARNING

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

It does not contain warnings or cautions to advise hon-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

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

2 PREVENTION OF ELECTRO STATIC DISCHARGE (ESD) TO
ELECTROSTATICALLY SENSITIVE (ES) DEVICES ----------------- 4
3 PRECAUTION OF LASER DIODE ------------------------------------------- 5
4 HANDLING PRECAUTIONS FOR TRAVERSE DECK
4.1. Handling ol optical pickup ------------------------------

4.2. Grounding for electrostatic breakdown prevention ------------ 5
5 Optical Pickup Self-Diagnosis and Replacement Procedure ~16
6 Self-Diagnosis Function and Service Modes -------------------------- 7
6.1. Service Mode Table ------------
6.2. Self-Diagnosis Function (UHF Display)
6.3, Examples of Repairs Using Error Codes

6.4, Sales Demonstration Lock Function -------------------------------- a
7 Service Tools and Equipment ------------------------------------------------- 9
7.1. Service Tools and Equipment Table
7.2. Stonng and Handling Test Discs

a General Description -----------------------

8.1. Operating Instructions .................................................. 10
9 Assembling and Disassembling the Casing and Checking
P.C.B.s ---------------------------------------------------------------------------------- 11

9.1. Disassembly Procedure
9.2. Casing Parts and P.C.B. Pcsnions
9.3. Service Positions -------------------------
9.4. Disassembling the Top Cover --------------------------------------- 13

9.5. Disassembling the Tray ------------------------------------------------ 13
9.6. Disassembling the Front Panel -----

9.7. Disassembling the Loading Base Un
9.8. Checking the Module P.C.B. ---------

9.9. Disassembling the Rear Panel -------------------------------------- 14
9.10. Checking the Power Supply P.C.B. ------------------------------- 15
9.11. Checking the Mother P.C.B. ----------------------------------------- 15

9.12, Checking the Front Switch P.C.B.~ -16

9.13. Checking the Power Switch P.C.B.

10 Service Precautions --------------------- ~17
10.1. Initializing the DVD Player -------------------------------------------- 17
10.2, Handling After Completing Repairs ------------------------------- 17

11 Assembling and Disassembling the Optical Pickup

(Mechanical Parts) ------------------

11.1. Handling the Optical Pickup-

11.2. Disassembly Procedur
11.3. Disassembling the Clamp Base Unit ----------------------------- 19
11.4. Disassembling the Clamper Weight. Clamper Yoke,

"19
~19

Magnet and Clamper ----------------
11.5. Disassembling the Traverse Unit -
11.6. Disassembling the Stepping Motor Unit

11.7, Disassembling the Optical Pickup Uni
11.5. Disassembling the Nut Unit ............

11.9. Disassembling the Sub-Shaft Preload Spring ................ 21
11.10. Assembling the Optical Pickup ...................................... 21
11.11. Disassembling the Spindle Motor Unit ........................... 22
11.12. Optical Pickup Tilt Adjustment -----------

11.13. Disassembling the Intermediate Chassis-

11.14. Disassembling the Vertical cam and Drive gear~
11.15. Disassembling the Pulley Gear and Deceleration Gear--25
11,16. Disassembling the Mechanism Loading P.C.B. -------------- 25

12 Electrical Adjustment ------------------------------------------------------------ 26
12.1. Video Output (Luminance Signal) Adjustment"-

12.2. Video Output (Chrominance Signal) Adjustment

12.3. Video Component Signal (CB) Output Adjustment --------- 27
13 Abbreviations ------------------------------------------------------------------------ 23
14 VOLTAGE CHART ----------------------------------------------------------------- so

14.1. POWER SUPPLY P.C.B.
14.2. MODULE P.C.B.
14.3. MOTHER P.C.B.
15 BLOCK DIAGRAM"-
15.1. OVERALL BLOCK DIAGRAM --------------------------------------- 35
15.2. SERVO BLOCK DIAGRAM
15.3. VIDEO BLOCK DIAGRAM
15.4. AUDIO BLOCK DIAGRAM-

16 SCHEMATIC DIAGRAM -------------------------------------------------------- as
16.1. iNTERCONNECTiON SCHEMATIC DIAGRAM ------------- 39
16.2. POWER SUPPLY SCHEMATic DIAGRAM ------------------- 40
16.3. ADSC SECTION (MODULE P.C.B. (1/7)) SCHEMATIc

DIAGRAM-
16.4. AV DECORDER SECTION (MODULE P.C.B. (2/7))
SCHEMATIC DIAGRAM ----------------------------------------- 42
16.5. VIDEO D/A CONVERTER SECTiON (MODULE P.C.B.
(3/7)) SCHEMATIC DIAGRAM -------------------------------------- 43
16.6. AUDIO SECTION (MODULE P.C.B. (4/7)) SCHEMATIC
DIAGRAM -------------------------------------------------------------- 44
16.7. FEP SECTION (MODULE P.C.B. (5/7)) SCHEMATIC
DIAGRAM -------------------------------------------------------------- 45
16.8. cpu SECTION (MODULE P.C.B. (6/7)) SCHEMATIC
DIAGRAM -------------------------------------------------------------------- 46
16.9. 000 SECTION (MODULE P.C.B. (7/7)) SCHEMATIC
DIAGRAM -------------------------------------------------------------------- 47
16.10. VIDEO OUT SECTION (MOTHER P.C.B. (1/3))
SCHEMATIC DIAGRAM ------------------------------------- 48
16.11. AUDIO OUT SECTION (MOTHER P.C.B. (2/3))
SCHEMATIC OiAGRAM ----------------------------------------------- 49