Panasonic TH-37PR10B / TH-37PR10E / TH-42PR10B / TH-42PR10E Service Manual ▷ View online
1 Applicable signals
4
2 Safety Precautions
5
2.1.
General Guidelines
5
2.2.
Touch-Current Check
5
3 Prevention of Electrostatic Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
6
4 About lead free solder (PbF)
7
5 Service Hint
8
6 Disassembly TH-37PR10B/E
9
6.1.
Removal of Rear Cover
9
6.2.
Removal of Slot Block
9
6.3.
Removal of DS-Board
9
6.4.
Removal of HX-Board
10
6.5.
Removal of Speaker(L, R)
10
6.6.
Removal of DN-Board
10
6.7.
Removal of P-Board
11
6.8.
Removal of D-Board
11
6.9.
Removal of SU-Board and SD-Board
11
6.10. Removal of SC-Board
12
6.11. Removal of SS-Board
12
6.12. Removal of C1, C2-Board
12
6.13. Removal of S-Board
13
6.14. Removal of GK-Board
14
6.15. Removal of K-Board
14
6.16. Removal of Escutcheon and the Front Glass
14
6.17. Removal of Plasma Panel
16
7 DisassemblyTH-42PR10B/E
18
7.1.
Removal of Rear Cover
18
7.2.
Removal of Slot Block
18
7.3.
Removal of DS-Board
18
7.4.
Removal of HX-Board
19
7.5.
Removal of Speaker(L, R)
19
7.6.
Removal of DN-Board
19
7.7.
Removal of P-Board
20
7.8.
Removal of D-Board
20
7.9.
Removal of SU-Board and SD-Board
20
7.10. Removal of SC-Board
21
7.11. Removal of SS-Board
21
7.12. Removal of C1, C2-Board
21
7.13. Removal of S-Board
22
7.14. Removal of GK-Board
23
7.15. Removal of K-Board
23
7.16. Removal of Escutcheon and the Front Glass
23
7.17. Removal of Plasma Panel
25
8 Location of Lead Wiring
27
8.1.
Wiring for the 37 inch model
27
8.2.
Wiring for the 42 inch model
30
9 Adjustment Procedure
33
9.1.
Driver Set-up
33
9.2.
Initialization Pulse Adjust
34
9.3.
P.C.B. (Printed Circuit Board) exchange
34
9.4.
Adjustment Volume Location
35
9.5.
Test Point Location
36
10 Service mode
37
10.1. CAT (computer Aided Test) mode
37
10.2. IIC mode structure (following items value is sample data.)
40
11 Adjustment
41
VBS (use HD port)
with/picture 1.0 Vp-p (high impedance)
without/picture 0.30 Vp-p (high impedance)
AUDIO IN (M3 JACK)
0.5 Vrms (high impedance)
SERIAL
EXTERNAL CONTROL TERMINAL (D-SUB 9PIN)
RS-232C COMPATIBLE
Accessories Supplied
Fixing bands
TMME203 × 2
Dimensions (W × H × D)
36.1" (917 mm) × 25.4" (644 mm) × 3.7" (95 mm)
(4.3”(109mm)when including protruding portion of
slots)(37 inch)
slots)(37 inch)
40.2" (1,020 mm) ×27.8" (705 mm) × 3.7" (95 mm)
(4.3”(109mm)when including protruding portion of
slots)(42 inch)
slots)(42 inch)
Mass (weight)
approx. 55.1 lbs (37 inch)
approx. 61.7 lbs (42 inch)
Sound
Speaker
4.8” (120mm) × 2.4” (60mm) × 2 pcs , 8-ohm
Audio Output
20W k10W+10Wli10THDj
Notes:
· Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.
CONTENTS
Page
Page
2
TH-37PR10B / TH-37PR10E / TH-42PR10B / TH-42PR10E
11.1. RGB white balance adjustment
41
11.2. HD white balance adjustment
43
11.3. Power control adjustment
45
12 Trouble shooting guide
46
12.1. Self Check
46
12.2. No Power
47
12.3. No Picture
47
12.4. Local screen failure
48
13 Option Setting
49
14 Conduct Views
51
14.1. P-Board (37inch)
51
14.2. P-Board (42inch)
54
14.3. HX-Board
57
14.4. GK, K and S-Board
58
14.5. DS-Board
59
14.6. DN-Board
61
14.7. D-Board
63
14.8. C1-Board (37inch)
65
14.9. C1-Board (42inch)
66
14.10. C2-Board (37inch)
67
14.11. C2-Board (42inch)
68
14.12. SC-Board
69
14.13. SU-Board (37inch)
72
14.14. SU-Board (42inch)
73
14.15. SD-Board (37inch)
74
14.16. SD-Board (42inch)
75
14.17. SS-Board
76
15 Block and Schematic Diagram
79
15.1. Schematic Diagram Notes
79
15.2. Main Block Diagram (37inch)
80
15.3. Main Block Diagram (42 inch)
81
15.4. P-Board Block Diagram
82
15.5. P-Board (1 of 6) Schematic Diagram
83
15.6. P-Board (2 of 6) Schematic Diagram
84
15.7. P-Board (3 of 6) Schematic Diagram
85
15.8. P-Board (4 of 6) Schematic Diagram
86
15.9. P-Board (5 of 6) Schematic Diagram
87
15.10. P-Board (6 of 6) Schematic Diagram
88
15.11. HX-Board Block and Schematic Diagram
89
15.12. GK and K-Board Block and Schematic Diagram
90
15.13. DS-Board (1 of 2) Block Diagram
91
15.14. DS-Board (2 of 2) Block Diagram
92
15.15. DS-Board (1 of 5) Schematic Diagram
93
15.16. DS-Board (2 of 5) Schematic Diagram
94
15.17. DS-Board (3 of 5) Schematic Diagram
95
15.18. DS-Board (4 of 5) Schematic Diagram
96
15.19. DS-Board (5 of 5) Schematic Diagram
97
15.20. DN-Board (1 of 2) Block Diagram
98
15.21. DN-Board (2 of 2) Block Diagram
99
15.22. DN-Board (1 of 6) Schematic Diagram
100
15.23. DN-Board (2 of 6) Schematic Diagram
101
15.24. DN-Board (3 of 6) Schematic Diagram
102
15.25. DN-Board (4 of 6) Schematic Diagram
103
15.26. DN-Board (5 of 6) Schematic Diagram
104
15.27. DN-Board (6 of 6) Schematic Diagram
105
15.28. D-Board Block Diagram
106
15.29. D-Board (1 of 6) Schematic Diagram
107
15.30. D-Board (2 of 6) Schematic Diagram
108
15.31. D-Board (3 of 6) Schematic Diagram
109
15.32. D-Board (4 of 6) Schematic Diagram
110
15.33. D-Board (5 of 6) Schematic Diagram
111
15.34. D-Board (6 of 6) Schematic Diagram
112
15.35. C1 and C2-Board Block Diagram
113
15.36. C1-Board (1 of 2) Schematic Diagram (37inch)
114
15.37. C1-Board (2 of 2) Schematic Diagram (37inch)
115
15.38. C1-Board (1 of 2) Schematic Diagram (42inch)
116
15.39. C1-Board (2 of 2) Schematic Diagram (42inch)
117
15.40. C2-Board (1 of 2) Schematic Diagram (37inch)
118
15.41. C2-Board (2 of 2) Schematic Diagram (37inch)
119
15.42. C2-Board (1 of 2) Schematic Diagram (42inch)
120
15.43. C2-Board (2 of 2) Schematic Diagram (42inch)
121
15.44. SC-Board Block Diagram
122
15.45. SC-Board (1 of 2) Schematic Diagram
123
15.46. SC-Board (2 of 2) Schematic Diagram
124
15.47. SU and SD-Board Block Diagram
125
15.48. SU-Board (1 of 2) Schematic Diagram (37inch)
126
15.49. SU-Board (2 of 2) Schematic Diagram (37inch)
127
15.50. SU-Board (1 of 2) Schematic Diagram (42inch)
128
15.51. SU-Board (2 of 2) Schematic Diagram (42inch)
129
15.52. SD-Board (1 of 2) Schematic Diagram (37inch)
130
15.53. SD-Board (2 of 2) Schematic Diagram (37inch)
131
15.54. SD-Board (1 of 2) Schematic Diagram (42inch)
132
15.55. SD-Board (2 of 2) Schematic Diagram (42inch)
133
15.56. SS and S-Board Block Diagram
134
15.57. SS and S-Board (1 of 2) Schematic Diagram
135
15.58. SS and S-Board (2 of 2) Schematic Diagram
136
16 Parts Location
137
16.1. Exploded View
137
16.2. Cable relation
139
16.3. Packing summary
140
17 Mechanical Replacement Parts List
142
18 Replacement Parts List
143
18.1. Replacement Parts List Notes
143
18.2. TH-37PR10B/E Electrical Replacement Parts List
144
18.3. TH-42PR10B/E Electrical Replacement Parts List
164
3
TH-37PR10B / TH-37PR10E / TH-42PR10B / TH-42PR10E
1 Applicable signals
4
TH-37PR10B / TH-37PR10E / TH-42PR10B / TH-42PR10E
2 Safety Precautions
2.1. General Guidelines
1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.
2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the wires
2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the wires
have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the entire wiring unit instead.
3. When conducting repairs and servicing, do not twist the Faston connectors but plug them straight in or unplug them straight out.
4. When servicing, observe the original lead dress.If a short circuit is found, replace all parts which have been overheated or
4. When servicing, observe the original lead dress.If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
5. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
6. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
2.2. Touch-Current Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such
2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such
as a water pipe, as shown in Figure 1.
3. Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reserve the AC plug in the AC outlet and repeat each of the above measure.
6. The potential at any point (TOUGH CURRENT) expressed as voltage U
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reserve the AC plug in the AC outlet and repeat each of the above measure.
6. The potential at any point (TOUGH CURRENT) expressed as voltage U
1
and U
2
, does not exceed the following values:
For a. c.: U
1
= 35 V (peak) and U
2
= 0.35 V (peak);
For d. c.: U
1
= 1.0 V,
Note:
The limit value of U
2
= 0.35 V (peak) for a. c. and U
1
= 1.0 V for d. c. correspond to the values 0.7 mA (peak) a. c. and 2.0
mA d. c.
The limit value U
The limit value U
1
= 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.
7. In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the customer.
Figure 1
5
TH-37PR10B / TH-37PR10E / TH-42PR10B / TH-42PR10E