Read Panasonic TH-42PHD5 / TH-42PHW5 Service Manual online
Power Source:
AC120V 50/60Hz (UY/UZ version)
AC220-240V 50/60Hz
(Except UY/UZ version) model)
Power Consumption: 375 W
2.4W (stand-by condition)
(UY/UZ version)
3.0W (stand-by condition)
(Except UY/UZ version model)
0.9W (Power off condition)
(UY/UZ version model)
1.7W (Power off condition)
(Except UY/UZ version model)
Plasma Display panel: Drive method AC type
50-inch, 16:9 aspect ratio
Contrast Ratio
3000:1
Screen size:
920 mm (W)×518 mm (H)
1,056 mm (diagonal)
No. of pixels
786,432 (1,024 (W)×768 (H))
[3,072×768 dots]
Operating condition:
Temperature
34 °F - 104 °F (0 °C - 40 °C)
Humidity
20 % - 80 %
Horizontal scanning frequency 15.6 - 110kHz
Vertical scanning frequency 48 - 120Hz
2002
TH-42PHD5
TH-42PHW5
TH-42PHW5
GPH5D Chassis
Connection terminals:
AV
Video in
1.0 Vp-p (75-ohm)
S-VIDEO IN
(MINI DIN 4PIN)
(MINI DIN 4PIN)
Y: 1 Vp-p (75-ohm), C: 0.286 Vp-p
(75-ohm)
(75-ohm)
AUDIO IN
(RCA PIN JACK × 2)
(RCA PIN JACK × 2)
0.5 Vrms (high impedance)
COMPONENT/RGB
Y/G
1.0 Vp-p/composite (75-ohm)
0.7 Vp-p/non-composite (75-ohm)
P
B
/B
0.7 Vp-p (75-ohm)
P
R
/R
0.7 Vp-p (75-ohm)
HD
1.0 - 5.0 Vp-p (high impedance)
VD
1.0 - 5.0 Vp-p (high impedance)
AUDIO IN
(RCA PIN JACK×2)
0.5 Vrms (high impedance)
PC
(HIGH-DENSITY
D-SUB15PIN)
R,G,B/0.7 Vp-p (75-ohm)
HD, VD/1.0 - 5.0 Vp-p (high
impedance)
impedance)
AUDIO IN (M3 JACK)
0.5Vrms (high impedance)
SERIAL
EXTERNAL CONTROL
TERMINAL (D-SUB9PIN)
RS-232C COMPATIBLE
SPEAKERS (External
speakers)
speakers)
6
9 16W [8W+8W] (10% THD)
Dimensions (W×H×D): 40.2” (1,020 mm)×24” (610mm)×3.5” (89
mm)
Weight (Mass)
approx. 66.1 Ibs (29.5 kg) (main unit only)
approx. 75.4 Ibs (33.7kg) (with speakers)
Wide Plasma Display
Specifications
ORDER NO. ITD0207017C0
D10
1
Applicable signals
3
2
Safety Precautions
4
2.1.
General Guidelines
4
3
Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
5
4
About lead free solder (PbF)
6
5
PCB Structure sheet of GPH5D chassis
7
6
Service Hint
8
7
Location of Lead Wiring
9
8
Adjustment Procedure
10
8.1.
+B Set-up
10
8.2.
Driver Set-up
10
8.3.
Initialization Pulse Adjust
11
8.4.
P.C.B. (Printed Circuit Board) exchange
12
8.5.
Adjustment Volume Location
12
8.6.
Test Point Location
12
9
Service mode
13
9.1.
CAT (computer Aided Test) mode
13
9.2.
IIC mode structure (following items value is sample data.)
15
10 Alignment
16
10.1. Pedestal setting
16
10.2. NTSC panel white balance
17
10.3. PAL/SECAM panel white balance
18
10.4. PC/RGB panel white balance
20
10.5. HD/ 525i /525p panel white balance
22
10.6. 625i panel balance
24
10.7. Sub brightness setting
25
11 Troubleshooting guide
27
11.1. Self Check
27
11.2. No Power
28
11.3. No Picture
29
11.4. Local screen failure
29
12 Option Setting
30
13 Conductor Views
33
13.1. F-Board
33
13.2. P1-Board
34
13.3. P3, P5, P6, P7 and P8-Board
37
13.4. HX-Board
39
13.5. HY-Board
40
13.6. HZ-Board
42
13.7. D1-Board
44
13.8. D2-Board
46
13.9. C1-Board
49
13.10. C2-Board
50
13.11. C3-Board
51
13.12. C4-Board
52
13.13. SC-Board
53
13.14. SU-Board
56
13.15. SD-Board
57
13.16. SS-Board
58
13.17. SS2 and SS3-Board
61
13.18. Z-Board
62
13.19. H3, S1 and V1-Board
63
14 Block and Schematic Diagrams
65
14.1. Schematic Diagram Notes
65
14.2. Main Block Diagram
66
14.3. Power Block Diagram
67
14.4. P1-Board Schematic Diagram
68
14.5. F, P3, P5, P6, P7 and P8-Board Schematic Diagram
69
14.6. HX-Board Block Diagram
70
14.7. HX-Board Schematic Diagram
71
14.8. HY and HZ-Board Block Diagram
72
14.9. HY-Board (1 of 2) Schematic Diagram
73
14.10. HY-Board (2 of 2) Schematic Diagram
74
14.11. HZ-Board (1 of 2) Schematic Diagram
75
14.12. HZ-Board (2 of 2) Schematic Diagram
76
14.13. D1-Board Block Diagram
77
14.14. D1-Board (1 of 6) Schematic Diagram
78
14.15. D1-Board (2 of 6) Schematic Diagram
79
14.16. D1-Board (3 of 6) Schematic Diagram
80
14.17. D1-Board (4 of 6) Schematic Diagram
81
14.18. D1-Board (5 of 6) Schematic Diagram
82
14.19. D1-Board (6 of 6) Schematic Diagram
83
14.20. D2-Board Block Diagram
84
14.21. D2-Board (1 of 8) Schematic Diagram
85
14.22. D2-Board (2 of 8) Schematic Diagram
86
14.23. D2-Board (3 of 8) Schematic Diagram
87
14.24. D2-Board (4 of 8) Schematic Diagram
88
14.25. D2-Board (5 of 8) Schematic Diagram
89
14.26. D2-Board (6 of 8) Schematic Diagram
90
14.27. D2-Board (7 of 8) Schematic Diagram
91
14.28. D2-Board (8 of 8) Schematic Diagram
92
14.29. C1, C2, C3, and C4-Board Block Diagram
93
14.30. C1-Board Schematic Diagram
94
14.31. C2-Board Schematic Diagram
95
14.32. C3-Board Schematic Diagram
96
14.33. C4-Board Schematic Diagram
97
14.34. SC-Board Block Diagram
98
14.35. SC-Board (1 of 2) Schematic Diagram
99
CONTENTS
Page
Page
2
TH-42PHD5 / TH-42PHW5
14.36. SC-Board (2 of 2) Schematic Diagram
100
14.37. SU-Board Block Diagram
101
14.38. SU-Board (1 of 2) Schematic Diagram
102
14.39. SU-Board (2 of 2) Schematic Diagram
103
14.40. SD-Board Block Diagram
104
14.41. SD-Board (1 of 2) Schematic Diagram
105
14.42. SD-Board (2 of 2) Schematic Diagram
106
14.43. SS-Board Block Diagram
107
14.44. SS, SS2, SS3 and S1-Board Schematic Diagram
108
14.45. Z-Board Block Diagram
109
14.46. H3 and Z-Board Schematic Diagram
110
15 Parts Location
111
15.1. Parts Location1
111
15.2. Parts Location2
112
15.3. Parts Location3
113
16 Mechanical Replacement Parts List
114
17 Replacement Parts List
116
17.1. Relpacement Parts List Notes
116
17.2. Electrical Replacement Parts List
117
1 Applicable signals
3
TH-42PHD5 / TH-42PHW5
2.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two
prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between
the jumpered AC plug and each exposed metallic cabinet
part on the equipment such as screwheads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1M
part on the equipment such as screwheads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1M
9 and 5.2M9.
When the exposed metal does not have a return path to
the chassis, the reading must be
.
Figure 1
2.1.2. Leakage Current Hot Check (See
Figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use an
isolation transformer for this check.
2. Connect a 1.5k
9, 10 watts resistor, in parallel with a 0.15µF
capacitors, between each exposed metallic part on the set
and a good earth ground such as a water pipe, as shown in
Figure 1.
and a good earth ground such as a water pipe, as shown in
Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more
sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the
voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the
above measurements.
6. The potential at any point should not exceed 0.75 volts
RMS. A leakage current tester (Simpson Model 229 or
equivalent) may be used to make the hot checks, leakage
current
equivalent) may be used to make the hot checks, leakage
current
must
not
exceed
1/2
milliamp.
In
case
a
measurement is outside 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.
possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the
customer.
2 Safety Precautions
2.1. General Guidelines
1. 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.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
4
TH-42PHD5 / TH-42PHW5
