Read Panasonic TU-PTA500U Service Manual online
1 Safety Precautions
3
1.1. General Guidelines
3
1.2. Leakage Current Cold Check
3
1.3. Leakage Current Hot Check (see Figure 1)
3
2 Chassis Boards Layout
5
3 Disassembly Procedure
6
3.1. Top Cover Removal
6
3.2. Rear Panel Removal
6
3.3. Front Panel Removal
6
3.4. G-Board and K-Board Removal
7
3.5. P-Board Removal
7
3.6. A-Board, DG-Board, and T-board Removal
7
4 Self-check Function
9
4.1. Self-check of the microcomputer control system (bus line) 9
5 Service Adjustment Mode
10
5.1. Entry into service adjustment mode
10
5.2. Key Function (Concurrent Mode)
10
5.3. How to Read the Serve Adjustent Mode
11
5.4. Enter to each functions
11
6 IIC Mode Function
12
6.1. FLESH TONE
12
6.2. HYBRID GAMMA
12
6.3. SCREEN ADJUSTMENT
13
7 Service Adjustment Procedures
13
7.1. +B Voltage Confirmation
13
7.2. RF AGC Confirmation
13
7.3. NTSC Adjustment
14
8 Conductor Views
17
8.1. G-Board and P-Board
17
8.2. A-Board
18
8.3. DG-Board
22
8.4. AG-Board, K-Board and T-Board
23
8.5. H-Board, X-Board and Z-Board
24
9 Block and Schematic Diagrams
25
9.1. Schematic Diagram Notes
25
9.2. Main Block Diagram
26
9.3. Audio Block Diagram
27
9.4. Power Block Diagram
28
9.5. Video Block Diagram
30
9.6. P, H, K, and A-Board (1/7)
32
9.7. A-Board (2/7)
33
9.8. Z, X and A-Board (3/7)
34
9.9. AG and A-Board (4/7)
35
9.10. G, T and A-Board (5/7)
36
9.11. A-Board (6/7)
37
9.12. A-Board (7/7)
38
9.13. DG-Board (1/2)
39
9.14. DG-Board (2/2)
40
10 Parts Location & Mechanical Replacement Parts List
41
10.1. Parts Location
41
10.2. Mechanical Replacement Parts List
42
11 Replacement Parts List
43
11.1. Relpacement Parts List Notes
43
11.2. Electrical Replacement Parts List
44
CONTENTS
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TU-PTA500U
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