TH-37PX60U
© 2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
TH-37PX60U
TH-42PX60U
GP9DU Chassis
Digital High Definition Plasma Television
Specifications
Power Source AC 120 V, 50/60 Hz
Power Consumption
Maximum 323 W (TH-37PX60U), 390 W (TH-42PX60U)
Standby condition 0.2 W (TH-37PX60U), 0.2 W (TH-42PX60U)
Plasma Displ ay panel
Drive method AC type
Aspect Ratio 16 : 9
Contrast Ratio 3000 : 1
Visible screen size
(No. of pixels)
94 cmV (TH-37PX60U), 106 cmV (TH-42PX60U)
32.2 ” × 18.2 ” × 37.0 ” (818 mm × 461 mm × 939 mm) (TH-37PX60U)
36.3 ” × 20.4 ” × 41.6 ” (920 mm × 518 mm × 1,056 mm) (TH-42PX60U)
737,280 (1,024 (W) × 720 (H)) [3,072 × 720 dots] (TH-37PX60U)
786,432 (1,024 (W) × 768 (H)) [3,072 × 768 dots] (TH-42PX60U)
Sound
Speaker 4.8 ” × 2.4 ” (120 mm × 60 mm) × 2 pcs, 8W
Audio Output 20 W [10 W + 10 W] (10 % THD)
Channel Capability (Digital/Analog) VHF/UHF: 2 - 69, CATV: 1 - 135
Operating Conditions Temperature: 32 °F - 104 °F (0 °C - 40 °C)
Humidity: 20 % - 80 % RH (non-condensing)
Connection Terminals
INPUT 1-3 VIDEO: RCA PIN Type × 1 1.0 V [p-p] (75 W)
S-VIDEO: Mini DIN 4-pin Y: 1.0 V [p-p] (75 W) C: 0.286 V [p-p] (75 W)
AUDIO L-R: RCA PIN Type × 2 0.5 V [rms]
COMPONENT VIDEO
INPUT 1-2
Y: 1.0 V [p-p] (including synchronization)
P
B
,P
R
: ± 0.35 V [p-p]
AUDIO L-R: RCA PIN Type × 2 0.5 V [rms]
HDMI 1-2 TYPE A Connector
AUDIO L-R: RCA PIN Type × 2 0.5 V [rms]
ORDER NO.MTNC060263C1
B19 Canada: B05
1 Applicable signals 5
2 Safety Precautions
5
2.1. General Guidelines
5
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
6
4 About lead free solder (PbF)
7
5 Service Hint
8
6 Plasma panel replacement method
9
6.1. Remove the Back cover
9
6.2. Remove the fan
9
6.3. Remove the rear terminal cover
9
6.4. Remove the P-Board
9
6.5. Remove the PA-Board
10
6.6. Remove the tuner unit
10
6.7. Remove the DT-Board
10
6.8. Remove the DG-Board
11
6.9. Remove the H-Board
11
6.10. Remove the HC-Board
12
6.11. Remove the D-Board
12
6.12. Remove the SU-Board (37inch)
12
6.13. Remove the SU-Board (42inch)
12
6.14. Remove the SD-Board (37inch)
13
6.15. Remove the SD-Board (42inch)
13
6.16. Remove the SC-Board
13
6.17. Remove the SS-Board
13
6.18. Remove the C1-Board
14
6.19. Remove the C2-Board
14
6.20. Remove the front bracket
15
6.21. Remove the G-Board, GK-Board and GS-Board
15
6.22. Remove the speaker L, R
15
6.23. Remove the S-Board
15
6.24. Remove the K-Board
16
6.25. Remove the stand brackets
16
6.26. Remove the Plasma panel section from the Front frame
(glass)
16
6.27. Replace the plasma panel (finished)
17
7 Location of Lead Wiring
18
7.1. Lead of Wiring (1)
18
7.2. Lead of Wiring (2)
19
7.3. Lead of Wiring (3)
20
7.4. Lead of Wiring (4)
21
7.5. Lead of Wiring (5)
22
7.6. Lead of Wiring (6)
23
7.7. Lead of Wiring (7)
24
7.8. Lead of Wiring (8)
25
8 Self-check Function
26
8.1. Check of the IIC bus lines
26
8.2. Power LED Blinking timing chart
28
8.3. No Power
29
8.4. No Picture
30
8.5. Local screen failure
31
9 Serviceman Mode
32
9.1. How to enter into Serviceman Mode
32
9.2. Contents of adjustment mode
32
Card slot SD CARD slot × 1
AV PROG. OUT VIDEO: RCA PIN Type × 1 1.0 V [p-p] (75 W)
AUDIO L-R: RCA PIN Type × 2 0.5 V [rms]
DIGITAL AUDIO OUT PCM/Dolby Digital, Fiber Optic
FEATURES 3D Y/C FILTER
CLOSED CAPTION V-Chip
Photo Viewer
Dimensions (W × H × D)
Including pedestal 36.1 ” × 27.9 ” × 12.7 ” (917 mm × 708 mm × 321 mm) (TH-37PX60U)
40.2 ” × 30.3 ” × 12.7 ” (1,020 mm × 768 mm × 321 mm) (TH-42PX60U)
TV Set only 36.1 ” × 25.4 ” × 3.8 ” (917 mm × 645 mm × 95 mm) (TH-37PX60U)
40.2 ” × 27.8 ” × 3.8 ” (1,020 mm × 705 mm × 95 mm) (TH-42PX60U)
Weight
Including pedestal 61.7 lb. (28 kg) (TH-37PX60U), 70.5 lb. (32 kg) (TH-42PX60U)
TV Set only 57.3 lb. (26 kg) (TH-37PX60U), 66.1 lb. (30 kg) (TH-42PX60U)
Note:
Design and Specifications are subject change without notice.
Weight and Dimensions shown are approximate.
CONTENTS
Page Page
2
TH-37PX60U / TH-42PX60U
9.3. Memory edit mode 33
9.4. Device data mode
34
10 Adjustment Procedure
35
10.1. Driver Set-up
35
10.2. Initialization Pulse Adjust
36
10.3. P.C.B. (Printed Circuit Board) exchange
36
10.4. Adjustment Volume Location
37
10.5. Test Point Location
37
11 Adjustment
38
11.1. White balance adjustment
38
11.2. Sub bright adjustment
40
11.3. ABL operation level adjustment
41
12 Hotel mode
42
13 Conduct Views
43
13.1. P-Board (37inch)
43
13.2. P-Board (42inch)
46
13.3. PA-Board
49
13.4. H-Board
51
13.5. G and GS-Board
53
13.6. GK, HC, K and S-Board
54
13.7. DG-Board
55
13.8. DT-Board
57
13.9. D-Board
59
13.10. C1-Board (37inch)
61
13.11. C1-Board (42inch)
62
13.12. C2-Board (37inch)
63
13.13. C2-Board (42inch)
64
13.14. SC-Board
65
13.15. SU-Board (37inch)
68
13.16. SU-Board (42inch)
69
13.17. SD-Board (37inch)
70
13.18. SD-Board (42inch)
71
13.19. SS-Board
72
14 Schematic and Block Diagram
75
14.1. Schematic Diagram Notes
75
14.2. Main Block Diagram (37inch)
76
14.3. Main Block Diagram (42inch)
77
14.4. P-Board Block Diagram (37inch)
78
14.5. P-Board (1 of 6) Schematic Diagram (37inch)
79
14.6. P-Board (2 of 6) Schematic Diagram (37inch)
80
14.7. P-Board (3 of 6) Schematic Diagram (37inch)
81
14.8. P-Board (4 of 6) Schematic Diagram (37inch)
82
14.9. P-Board (5 of 6) Schematic Diagram (37inch)
83
14.10. P-Board (6 of 6) Schematic Diagram (37inch)
84
14.11. P-Board Block Diagram (42inch)
85
14.12. P-Board (1 of 6) Schematic Diagram (42inch)
86
14.13. P-Board (2 of 6) Schematic Diagram (42inch)
87
14.14. P-Board (3 of 6) Schematic Diagram (42inch)
88
14.15. P-Board (4 of 6) Schematic Diagram (42inch)
89
14.16. P-Board (5 of 6) Schematic Diagram (42inch)
90
14.17. P-Board (6 of 6) Schematic Diagram (42inch)
91
14.18. PA-Board Block Diagrarm
92
14.19. PA-Board (1 of 3) Schematic Diagram
93
14.20. PA-Board (2 of 3) Schematic Diagram
94
14.21. PA-Board (3 of 3) Schematic Diagram
95
14.22. H-Board Block Diagram
96
14.23. H-Board (1 of 3) Schematic Diagram
97
14.24. H-Board (2 of 3) Schematic Diagram
98
14.25. H-Board (3 of 3) Schematic Diagram
99
14.26. G, GK, HC, K and S-Board Block Diagram
100
14.27. G-Board Schematic Diagram
101
14.28. GK, K, HC and S-Board Schematic Diagram
102
14.29. DG-Board (1 of 3) Block Diagram
103
14.30. DG-Board (2 of 3) Block Diagram
104
14.31. DG-Board (3 of 3) Block Diagram
105
14.32. DG-Board (1 of 8) Schematic Diagram
106
14.33. DG-Board (2 of 8) Schematic Diagram
107
14.34. DG-Board (3 of 8) Schematic Diagram
108
14.35. DG-Board (4 of 8) Schematic Diagram
109
14.36. DG-Board (5 of 8) Schematic Diagram
110
14.37. DG-Board (6 of 8) Schematic Diagram
111
14.38. DG-Board (7 of 8) Schematic Diagram
112
14.39. DG-Board (8 of 8) Schematic Diagram
113
14.40. DT and GS-Board Block Diagram
114
14.41. DT-Board (1 of 6) Schematic Diagram
115
14.42. DT-Board (2 of 6) Schematic Diagram
116
14.43. DT-Board (3 of 6) and GS-Board Schematic Diagram
117
14.44. DT-Board (4 of 6) Schematic Diagram
118
14.45. DT-Board (5 of 6) Schematic Diagram
119
14.46. DT-Board (6 of 6) Schematic Diagram
120
14.47. D-Board Block Diagram
121
14.48. D-Board (1 of 6) Schematic Diagram
122
14.49. D-Board (2 of 6) Schematic Diagram
123
14.50. D-Board (3 of 6) Schematic Diagram
124
14.51. D-Board (4 of 6) Schematic Diagram
125
14.52. D-Board (5 of 6) Schematic Diagram
126
14.53. D-Board (6 of 6) Schematic Diagram
127
14.54. C1 and C2-Board Block Diagram
128
14.55. C1-Board (1 of 2) Schematic Diagram (37inch)
129
14.56. C1-Board (2 of 2) Schematic Diagram (37inch)
130
14.57. C1-Board (1 of 2) Schematic Diagram (42inch)
131
14.58. C1-Board (2 of 2) Schematic Diagram (42inch)
132
14.59. C2-Board (1 of 2) Schematic Diagram (37inch)
133
14.60. C2-Board (2 of 2) Schematic Diagram (37inch)
134
14.61. C2-Board (1 of 2) Schematic Diagram (42inch)
135
14.62. C2-Board (2 of 2) Schematic Diagram (42inch)
136
14.63. SC, SU and SD-Board Block Diagram (37inch)
137
14.64. SC, SU and SD-Board Block Diagram (42inch)
138
14.65. SC-Board (1 of 2) Schematic Diagram
139
14.66. SC-Board (2 of 2) Schematic Diagram
140
14.67. SU-Board (1 of 2) Schematic Diagram (37inch)
141
14.68. SU-Board (2 of 2) Schematic Diagram (37inch)
142
14.69. SU-Board (1 of 2) Schematic Diagram (42inch)
143
14.70. SU-Board (2 of 2) Schematic Diagram (42inch)
144
14.71. SD-Board (1 of 2) Schematic Diagram (37inch)
145
14.72. SD-Board (2 of 2) Schematic Diagram (37inch)
146
14.73. SD-Board (1 of 2) Schematic Diagram (42inch)
147
14.74. SD-Board (2 of 2) Schematic Diagram (42inch)
148
3
TH-37PX60U / TH-42PX60U
14.75. SS-Board Block Diagram 149
14.76. SS-Board Schematic Diagram
150
15 Parts Locatio n & Mech anica l Replaceme n t Parts List
151
15.1. Parts Location
151
15.2. Packing Exploded Views
152
15.3. Mechanical Replacement Parts List
153
16 Elect ri cal Replacement Parts List
154
16.1. Replacement Parts List Notes
154
16.2. Electrical Replacement Parts List (TH-37PX60U)
155
16.3. Electrical Replacement Parts List (TH-42PX60U)
183
4
TH-37PX60U / TH-42PX60U
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
1MW and 5.2MW.
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 1.5kW, 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.
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 ACplugintheAC outlet andrepeateach 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 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.
1 Applicable signals
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.
5
TH-37PX60U / TH-42PX60U
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alminum
foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, alminum foil or comparable
conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise hamless motion such as the brushing
together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to
damage an ES device).
6
TH-37PX60U / TH-42PX60U
4 About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d
suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol
stamped on the back of PCB.
Caution
·
Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40 °C) higher.
Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
·
Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb
solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
·
After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto
the opposite side. (see figure below)
Suggested Pb free solder
There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder.
However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.
7
TH-37PX60U / TH-42PX60U
5 Service Hint
Board Name Function Board Name Function
P Power Supply SC Scan Drive
PA DC-DC Converter,
Speaker out, Audio AMP, Fan Control
SU Scan out (Upper)
SD Scan out (Lower)
H AV Terminal, AV Switch SS Sustain Drive
DG Digital Signal Processor, Micom, HDMI Interface K Remote receiver, Power LED
DT ATSC Interface S Power Switch
D Format Converter, Plasma AI, Sub-Field Processor G Front Terminal
HC Jig Connection GS SD Card Slot
C1 Data Driver (Lower Right) GK Key Switch
C2 Data Driver (Lower Left)
8
TH-37PX60U / TH-42PX60U
6.1. Remove the Back cover
1. See Service Hint (Section 5)
6.2. Remove the fan
1. Disconnect the relay couplers.
2. Remove the screws (×3
each) and remove the fans.
6.3. Remove the rear terminal
cover
1. Remove the screws (×8 ,×5 ,×2 ).
2. Remove the rear terminal cover.
6.4. Remove the P-Board
Caution:
To remove P.C.B. wait 1 minute after power was off for
discharge from electrolysis capacitors.
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (P2, P5, P9, P10, P11, P12, P23,
and P25).
3. Remove the screws (×7
) and remove the P-Board.
6 Plasma panel replacement method
9
TH-37PX60U / TH-42PX60U
6.5. Remove the PA-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (PA2, PA5, PA10, PA31, PA32,
PA33, PA34 and PA40).
3. Disconnect the flexible cable (PA20).
4. Remove the screws (×4
) and remove the earth cable.
5. Remove the PA-Board.
6.6. Remove the tuner unit
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (DG5, G51, GS52, PA40 and earth
cable).
3. Disconnect the flexible cables (DG3 and PA20).
4. Remove the screws (×4
) remove the tuner unit.
6.7. Remove the DT-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (HC06 and DT10).
3. Remove the screws (×5
) remove the DT-Board unit.
(Be careful the coupler (DT12-DG22) when remove the DT-
Board unit.)
10
TH-37PX60U / TH-42PX60U
4. Disconnect the coupler (DT07)
5. Remove the screws (×2
).
6. Remove the DT-Board metal cover and DT-Board.
6.8. Remove the DG-Board
1. Remove the DT-Board. (See section 6.7.)
2. Remove the screws (×8
) and remove the DT-Board
metal frame.
3. Disconnect the coupler (DG2).
4. Disconnect the flexible cables (DG1, DG15 and DG20).
5. Remove the screw (×1
) remove the DG-Board.
6.9. Remove the H-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (H2, H40 and H51).
3. Disconnect the flexible cable (H1).
4. Remove the screws (×6
) and remove the H-Board.
11
TH-37PX60U / TH-42PX60U
6.10. Remove the HC-Board
1. Disconnect the couple (HC06).
2. Disconnect the flexible cable (HC15).
3. Remove the screws (×2
) and remove the HC-Board.
6.11. Remove the D-Board
1. Remove the tuner unit. (See section 6.6.)
2. Disconnect the couplers (D5, D20 and D25).
3. Disconnect the flexible cables (D3, D31 and D32).
4. Remove the screws (×4
) and remove the D-Board.
6.12. Remove the SU-Board (37inch)
1. Remove the screws (×2 ).
2. Remove the flexible cables (SU1, SU2 and SU3) and
remove the bridge connector (SU45).
3. Slide the SU-Board to the left to disconnect from a coupler
(SC41-SU41) on the SC-Board and remove the SU-Board.
6.13. Remove the SU-Board (42inch)
1. Remove the screws (×2 ).
2. Remove the flexible cables (SU1, SU2, SU3 and SU4) and
remove the bridge connector (SU45).
3. Slide the SU-Board to the left to disconnect from a coupler
(SC41-SU41) on the SC-Board and remove the SU-Board.
12
TH-37PX60U / TH-42PX60U
6.14. Remove the SD-Board (37inch)
1. Remove the screws (×2 ).
2. Remove the flexible cables (SD1, SD2 and SD3) and
remove the bridge connector (SD46).
3. Slide the SD-Board to the left to disconnect from a coupler
(SC42-SD42) on the SC-Board and remove the SD-Board.
6.15. Remove the SD-Board (42inch)
1. Remove the screws (×2 ).
2. Remove the flexible cables (SD1, SD2, SD3 and SD4) and
remove the bridge connector (SD46).
3. Slide the SD-Board to the left to disconnect from a coupler
(SC42-SD42) on the SC-Board and remove the SD-Board.
6.16. Remove the SC-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (SC2, SC20 and SC23).
3. Remove the screws (×6
) and remove the SC-Board.
6.17. Remove the SS-Board
1. Disconnect the couplers (SS11, SS12 and SS23).
2. Disconnect the flexible cables (SS41A, SS42A, SS43A and
SS44A) (37inch).
Disconnect the flexible cables (SS41, SS42, SS43 and
SS44) (42inch).
3. Remove the screws (×6
) and remove the SS-Board.
13
TH-37PX60U / TH-42PX60U
6.18. Remove the C1-Board
1. Remove the tuner unit. (See section 6.6.)
2. Unlock the cable clampers to free the cable.
3. Remove the flexible cables holder fastening screws (×8
).
4. Disconnect the flexible cables (CB1, CB2, CB3 and CB4).
5. Disconnect the flexible cables (C11 and C12).
6. Remove the screws (×4
) and remove the C1-Board.
6.19. Remove the C2-Board
1. Remove the tuner unit. (See section 6.6.)
2. Unlock the cable clampers to free the cable.
3. Remove the flexible cables holder fastening screws (×8
).
4. Disconnect the flexible cables (CB5, CB6, CB7 and CB8).
5. Disconnect the flexible cables (C21 and C22).
6. Disconnect the coupler (C23).
7. Remove the screws (×4
) and remove the C2-Board.
14
TH-37PX60U / TH-42PX60U
6.20. Remove the front bracket
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (GS52, G1 and G51).
3. Remove the screws (×5
) and remove the front bracket.
6.21. Remove the G-Board, GK-
Board and GS-Board
1. Remove the front bracket. (See section 6.20.)
2. Remove the screws (×3
) and remove the metal cover.
3. Remove the screws (×3 ) and remove the front side
metal frame.
4. Remove the screws (×5 ) and disconnect the couplers
(G3-GK3).
5. Remove the G-Board, GK-Board and GS-Board.
6.22. Remove the speaker L, R
1. Remove the screws (×2 each) and remove the speaker
L, R.
6.23. Remove the S-Board
1. Disconnect the coupler (S1).
2. Remove the screws(×2
) and remove the S-Board metal
frame.
3. Remove the screws (×2
) and remove the S-Board.
15
TH-37PX60U / TH-42PX60U
6.24. Remove the K-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (G1 and S1). (See section 6.20.
and 6.23.)
3. Remove the screws (×2
) and remove the K-Board.
6.25. Remove the stand brackets
1. Remove the plasma panel section from the servicing stand
and lay on a fiat surface such as a table (covered) with the
plasma panel surface facing downward.
2. Remove the stand brackets (left, right)fastening screws (×5
each) and remove the stand brackets (left, right).
6.26. Remove the Plasma panel
section from the Front frame
(glass)
1. Remove the front frame and the plasma panel fastening
screws (×6
).
2. Remove the front frame and the stand brackets fastening
screws (×4
).
3. For leaving the plasma panel from the front frame, pull the
bottom of the front frame forward, lift, and remove.
16
TH-37PX60U / TH-42PX60U
6.27. Replace the plasma panel
(finished)
1. Place the new plasma panel (finished) on the flat surface of
the table (covered by a soft cloth), with the plasma panel
surface facing downward.
2. Attach the C1-Board and the C2-Board, connect the flexible
cables (×8) from the Plasma panel to the C1-Board and the
C2-Board, and fit the flexible cable holders.
3. Attach the Hooks (left, right) and fit the stand brackets (L,
R) to the new plasma panel.
4. Place the plasma panel section on the servicing stand.
5. Attach the front frame and each P.C.Board and so on, to
the new plasma panel.
* When fitting the front frame, be careful to allow any
debris, dust or handling residue to remain between the
front glass and plasma panel.
17
TH-37PX60U / TH-42PX60U
7 Location of Lead Wiring
7.1. Lead of Wiring (1)
18
TH-37PX60U / TH-42PX60U
7.2. Lead of Wiring (2)
19
TH-37PX60U / TH-42PX60U
7.3. Lead of Wiring (3)
20
TH-37PX60U / TH-42PX60U
7.4. Lead of Wiring (4)
21
TH-37PX60U / TH-42PX60U
7.5. Lead of Wiring (5)
22
TH-37PX60U / TH-42PX60U
7.6. Lead of Wiring (6)
23
TH-37PX60U / TH-42PX60U
7.7. Lead of Wiring (7)
24
TH-37PX60U / TH-42PX60U
7.8. Lead of Wiring (8)
25
TH-37PX60U / TH-42PX60U
Use the self-check function to test the unit.
8 Self-check Function
1. Checking the IIC bus lines
2. Power LED Blinking timing
8.1. Check of the IIC bus lines
8.1.1. How to access
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control
for more than 3 seconds.
8.1.2. Exit
Disconnect the AC cord from wall outlet.
8.1.3. Screen display
26
TH-37PX60U / TH-42PX60U
8.1.4. Check Point
Confirm the following parts if NG was displayed.
Display Ref.No. Description Board
UV TU8200 TV Tuner DT-Board
DT1 IC8211 Front Processor DT-Board
DT2 IC8240 HDMSL PEAKS_Lite DT-Board
SND IC2603 Sound Processor H-Board
AVSWV IC2601 Video SW H-Board
AVSWA IC2602 Audio SW H-Board
ADV IC4019 10Bits A/D DG-Board
GC5 IC4037 GC5 Processor DG-Board
HDMI IC4026 HDMI I/F Reciever DG-Board
MEM IC1102 EEPROM DG-Board
RTC - - -
PANEL IC9003 MICOM D-Board
27
TH-37PX60U / TH-42PX60U
8.2. Power LED Blinking timing chart
1. Subject
Information of LED Flashing timing chart.
2. Contents
When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the
defective block can be identified by the number of blinkes of the Power LED on the front panel of the unit.
28
TH-37PX60U / TH-42PX60U
8.3. No Power
First check point
There are following 2 states of No Power indication by power LED.
1. No lit
2. Red is lit then turns red blinking a few seconds later. (See 8.2.)
1. No lit
29
TH-37PX60U / TH-42PX60U
8.4. No Picture
30
TH-37PX60U / TH-42PX60U
Loading...