Table Of Contents - Panasonic TC-L42D2 Service Manual

TABLE OF CONTENTS

1 Safety Precautions -----------------------------------------------3
1.1. General Guidelines ----------------------------------------3
2 Warning --------------------------------------------------------------4
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices ----------4
2.2. About lead free solder (PbF) ----------------------------5
3 Service Navigation------------------------------------------------6
3.1. Service Hint--------------------------------------------------6
3.2. Applicable signals ------------------------------------------6
4 Specifications ------------------------------------------------------7
5 Service Mode -------------------------------------------------------8
5.1. How to enter into Service Mode ------------------------8
5.2. SRV-TOOL ------------------------------------------------- 10
5.3. Hotel mode------------------------------------------------- 11
5.4. Data Copy by SD Card --------------------------------- 12
6 Troubleshooting Guide---------------------------------------- 15
6.1. Check of the IIC bus lines------------------------------ 15
6.2. Power LED Blinking timing chart --------------------- 16
6.3. No Power--------------------------------------------------- 17
7 Disassembly and Assembly Instructions --------------- 18
7.1. Pedestal ---------------------------------------------------- 18
7.2. Rear cover ------------------------------------------------- 18
7.3. AC cord ----------------------------------------------------- 18
7.4. P-Board ----------------------------------------------------- 19
7.5. Side AV bracket------------------------------------------- 19
7.6. A-Board ----------------------------------------------------- 20
7.7. Control panel ---------------------------------------------- 20
7.8. Speaker ----------------------------------------------------- 20
7.9. Metal bracket bottom ------------------------------------ 21
7.10. TC-Board --------------------------------------------------- 21
7.11. Metal support---------------------------------------------- 22
7.12. LCD Panel ------------------------------------------------- 22
7.13. V-Board ----------------------------------------------------- 22
7.14. EMI processing ------------------------------------------- 23
8 Measurements and Adjustments -------------------------- 27
8.1. VCOM Adjustment (Flicker Adjustment) ----------- 27
8.2. Voltage chart of A-board-------------------------------- 28
8.3. Picture level adjustment (RF) ------------------------- 28
9 Block Diagram --------------------------------------------------- 29
9.1. Main Block Diagram ------------------------------------- 29
9.2. Block (1/3) Diagram ------------------------------------- 30
9.3. Block (2/3) Diagram ------------------------------------- 31
9.4. Block (3/3) Diagram ------------------------------------- 32
10 Wiring Connection Diagram --------------------------------- 33
10.1. Caution statement.--------------------------------------- 33
10.2. Wiring (1) --------------------------------------------------- 33
10.3. Wiring (2) --------------------------------------------------- 34
11 Schematic Diagram--------------------------------------------- 35
11.1. Schematic Diagram Notes ----------------------------- 35
11.2. A-Board (1/13) Schematic Diagram ----------------- 36
11.3. A-Board (2/13) Schematic Diagram ----------------- 37
11.4. A-Board (3/13) Schematic Diagram ----------------- 38
11.5. A-Board (4/13) Schematic Diagram ----------------- 39
11.6. A-Board (5/13) Schematic Diagram ----------------- 40
11.7. A-Board (6/13) Schematic Diagram ----------------- 41
11.8. A-Board (7/13) Schematic Diagram ----------------- 42
11.9. A-Board (8/13) Schematic Diagram ----------------- 43
11.10. A-Board (9/13) Schematic Diagram ----------------- 44
PAGE
11.11. A-Board (10/13) Schematic Diagram --------------- 45
11.12. A-Board (11/13) Schematic Diagram --------------- 46
11.13. A-Board (12/13) and V-Board Schematic
Diagram ---------------------------------------------------- 47
11.14. A-Board (13/13) Schematic Diagram --------------- 48
11.15. TC-Board (1/6) Schematic Diagram ---------------- 49
11.16. TC-Board (2/6) Schematic Diagram ---------------- 50
11.17. TC-Board (3/6) Schematic Diagram ---------------- 51
11.18. TC-Board (4/6) Schematic Diagram ---------------- 52
11.19. TC-Board (5/6) Schematic Diagram ---------------- 53
11.20. TC-Board (6/6) Schematic Diagram ---------------- 54
12 Printed Circuit Board------------------------------------------ 55
12.1. A-Board ---------------------------------------------------- 55
12.2. V-Board----------------------------------------------------- 57
12.3. TC-Board -------------------------------------------------- 58
13 Exploded View and Replacement Parts List----------- 59
13.1. Exploded View and Mechanical Replacement
Parts List --------------------------------------------------- 59
13.2. Electrical Replacement Parts List ------------------- 64
2
PAGE