DVD-LS837EEK - Panasonic DVD Service Manual (repair manual). Page 3

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1 Important Service Information ------------------------------- 4

1.1. Notes --------------------------------------------------------- 4
1.2. About DivX -------------------------------------------------- 4
1.3. Manual for Customer ------------------------------------- 5

2 Safety Precautions----------------------------------------------- 6

2.1. General Guidelines---------------------------------------- 6

Electrostatically Sensitive (ES) Devices------------------ 7

4 PRecaution Of Laser Diode ----------------------------------- 8
5 How to Replace The Lithium Battery ---------------------- 9
6 Service Caution Based On Legal Restrictions --------10

6.1. General Description About Lead Free Solder

(PbF)---------------------------------------------------------10

7 Handling Precautions For Traverse Deck ---------------11

7.1. Handling Of Optical Pickup ----------------------------11
7.2. Grounding For Electrostatic Breakdown

Prevention --------------------------------------------------11

8 Disassembly, Reassembly And Service Position-----12

8.1. Disassembly -----------------------------------------------13
8.2. P.C.B. location---------------------------------------------14
8.3. Main Cabinet Of The Unit ------------------------------14
8.4. Traverse Assembly---------------------------------------15
8.5. Optical Pick-up Unit --------------------------------------16
8.6. Disc Motor --------------------------------------------------16
8.7. Main P.C.B.-------------------------------------------------17
8.8. Operation P.C.B. ------------------------------------------17
8.9. Monitor Assembly ----------------------------------------17

8.10. Disc Cover--------------------------------------------------18

8.11. Monitor Cover ---------------------------------------------18

8.12. Mono Arm --------------------------------------------------19
8.13. Inverter P.C.B. ---------------------------------------------20
8.14. LCD Panel--------------------------------------------------20
8.15. Replacing The Fuse In The Car DC Adaptor------20
8.16. Service Position-------------------------------------------21

9 Self-diagnosis Function And Service Mode ------------22

9.1. Optical Pickup Breakdown Diagnosis ---------------22
9.2. UHF Displays ----------------------------------------------23
9.3. Service Mode Table 1 -----------------------------------24
9.4. DVD Self Diagnostic Function-Error Code ---------24
9.5. Last Error Code Saved During NO Play ------------25
9.6. Service Mode Table --------------------------------------26
9.7. Lens Cleaning ---------------------------------------------26

10 Service Precautions --------------------------------------------27

10.1. Recovery After The DVD Player Is Repaired------27
10.2. Firmware Version-up Of the DVD Player -----------27

11 Adjustment Procedures ---------------------------------------28

11.1. Service Tools and Equipment -------------------------28
11.2. Important Points In Adjustment -----------------------28
11.3. Storing and Handling Test Discs----------------------28
11.4. Optical adjustment ---------------------------------------28
11.5. Electrical Adjustment (LCD) ---------------------------31
11.6. Electrical check (Video output check) ---------------32

12 Abbreviations ---------------------------------------------------- 33
13 Voltage Chart ----------------------------------------------------- 35

13.1. Main P.C.B. ------------------------------------------------ 35

14 Block Diagram --------------------------------------------------- 38

14.1. Overall Block Diagram ---------------------------------- 38
14.2. Power Supply Block Diagram ------------------------- 39
14.3. Servo Block Diagram------------------------------------ 40
14.4. Audio Block Diagram------------------------------------ 41
14.5. Video Block Diagram------------------------------------ 43

matic Diagram Notes ------------------------------------------ 44

15.1. Interconnection Schematic Diagram ---------------- 44
15.2. Schematic Diagram Notes ----------------------------- 45

16 Schematic Diagram -------------------------------------------- 46

16.1. Charge Battery Section (Main P.C.B. (1/11))

Schematic Diagram-------------------------------------- 46

16.2. Power Supply Section (Main P.C.B. (2/11))

Schematic Diagram-------------------------------------- 47

16.3. Optical Pick Up/servo Section (Main P.C.B. (3/

11)) Schematic Diagram-------------------------------- 48

16.4. DV5 Section (Main P.C.B. (4/11)) Schematic

Diagram ---------------------------------------------------- 49

16.5. DV5 Section (Main P.C.B. (5/11)) Schematic

Diagram ---------------------------------------------------- 50

16.6. Video Out Section (Main P.C.B. (6/11))

Schematic Diagram-------------------------------------- 51

16.7. Audio Out Section (Main P.C.B. (7/11))

Schematic Diagram-------------------------------------- 52

16.8. Operation Section (Main P.C.B. (8/11))

Schematic Diagram-------------------------------------- 53

16.9. LCD IF Section (Main P.C.B. (9/11))

Schematic Diagram-------------------------------------- 54

16.10. CN Section (Main P.C.B. (10/11)) Schematic

Diagram ---------------------------------------------------- 55

16.11. Fmt Section (Main P.C.B.(11/11)) Schematic

Diagram ---------------------------------------------------- 56

16.12. Operation Section (Operation P.C.B.)

Schematic Diagram-------------------------------------- 57

17 Printed Circuit Board ------------------------------------------ 58

17.1. Main P.C.B. (1/2) (Component Side) ---------------- 58
17.2. Main P.C.B. (2/2) (Foil Side)--------------------------- 59
17.3. Operation P.C.B. ----------------------------------------- 60

18 Exploded View and Replacement Parts List ----------- 61

18.1. Exploded Views ------------------------------------------ 61
18.2. Electrical Replacement Parts List-------------------- 65