Panasonic TH-37PH9UK User manual

©2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
TH-37PH9UK
TH-42PH9UK
GPH9D Chassis
High Definition Plasma Display
Specifications
Power Source 120 V
A
C, 50/60Hz
Power Consumption
Power on 300 W (37 inch) 345 W (42 inch)
Stand-b
y
condition Save OFF 0.6 W, Save ON 0.4 W (37 inch) Save OFF 0.6 W, Save ON 0.4 W (42 inch)
Power off condition 0.1 W (37 inch) 0.1 W (42 inch)
Plasma Displa
y
panel Drive method:
A
C type 37-inch, Drive method:
A
C type 42-inch,
16:9 aspect ratio (37 inch) 16:9 aspect ratio (42 inch)
Contrast Ratio Ma
x
10000:1
Screen size 32.2” (818 mm) (W) × 18.1” (461 mm) (H) × 37” (939 mm) (diagonal) (37 inch)
36.2” (920 mm) (W) × 20.4” (518 mm) (H) × 42” (1,056 mm) (diagonal) (42 inch)
(No. of pixels) 737,280 (1,024 (W) × 720 (H)) (37 inch) 786,432 (1,024 (W) × 768 (H)) (42 inch)
[3,072 × 720 dots] [3,072 × 768 dots]
Operating condition
Temperature 32 °F - 104 °F (0 °C - 40 °C)
Humidit
y
20 % - 80 %
Applicabl
e
signals
Color System NTSC, PAL, PAL60, SECAM, Modified NTSC
Scanning format 525 (480) / 60i 60p, 625 (575)
/
50i 50p, 750 (720)
/
60p 50p, 1125 (1080) / 60i 50i 24p 25p
30p 24sF .... SMPTE274M, 1250 (1080) / 50i
PC signals VGA, SVGA, VGA, SVGA, XGA,
XGA, SXGA, UXG
A
..... (compressed) SXGA, UXG
A
..... (compressed)
(37 inch) (42 inch)
Horizontal scanning frequency 15 - 110 kHz Horizontal scanning frequency 15 - 110 kHz
Vertical scanning frequency 48 - 120 Hz Vertical scanning frequency 48 - 120 Hz
(37 inch) (42 inch)
Connection terminals
A
V VIDEO IN (BNC) 1.0 Vp-p (75-ohm or high impedance)
S VIDEO IN (MINI DIN 4PIN) Y: 1 Vp-p (75-ohm), C: 0.286 Vp-p (75-ohm)
ORDER NO. MTNC060586CE
D10 Canada: B07

1 Applicable signals 5
2 Safety Precautions 6
2.1. General Guidelines 6
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 7
4 About lead free solder (PbF) 8
5 Service Hint 9
6 Disassembly (37 inch) 11
6.1. Removal of the Back Cover 11
6.2. Removal of the HU-Board 11
6.3. Removal of the HA-Board 11
6.4. Removal of the Slot Block 11
6.5. Removal of the J-Board 12
6.6. Removal of the HX-Board 12
6.7. Removal of the PB-Board 12
6.8. Removal of the DA-Board 13
6.9. Removal of the P-Board 13
6.10. Removal of the D-Board 13
6.11. Removal of the H3-Board (L, R) 13
6.12. Removal of the SU-Board and the SD-Board 14
6.13. Removal of the SC-Board 14
6.14. Removal of the SS-Board 14
6.15. Removal of the C1, C2-Board 15
6.16. Removal of the S1-Board 15
6.17. Removal of the Fan 16
6.18. Removal of the Escutcheon 16
6.19. Removal of the V1-Board and the V2-Board 17
6.20. Removal of the Plasma Panel 17
7 Disassembly (42 inch) 20
7.1. Removal of the Back Cover 20
7.2. Removal of the HU-Board 20
7.3. Removal of the HA-Board 20
7.4. Removal of the Slot Block 20
7.5. Removal of the J-Board 21
7.6. Removal of the HX-Board 21
7.7. Removal of the PB-Board 21
7.8. Removal of the DA-Board 22
7.9. Removal of the P-Board 22
7.10. Removal of the D-Board 22
7.11. Removal of the H3-Board (L, R) 22
A
UDIO IN (RCA PIN JACK × 4) 0.5 Vrms (high impedance)
COMPONENT / RGB
Y
/ G (BNC) 1.0 Vp-p
/
with
/
syn
c
(75-ohm)
0.7 Vp-p
/
without
/
syn
c
(75-ohm)
PB/B (BNC), PR/R (BNC) 0.7 Vp-p (75-ohm)
A
UDIO IN (RCA PIN JACK × 2) 0.5 Vrms (high impedance)
PC (HIGH-DENSIT
Y
Mini-D-SUB 15PIN) R,G,B
/
0.7 Vp-p (75-ohm)
HD, VD
/
1.0 - 5.0 Vp-p (high impedance)
Component
Y
:1.0 Vp-p (75-ohm : include sync)
PB
/
CB:0.7 Vp-p (75-ohm)
PR
/
CR:0.7 Vp-p (75-ohm)
A
UDIO IN (M3 JACK) 0.5 Vrms (high impedance)
SERIAL EXTERNAL CONTROL TERMINAL (D-SUB 9PIN) RS-232C COMPATIBLE
SPEAKERS (6Ω) 16 W [8 W + 8 W] (10 % THD)
Accessories Supplied
Remote Control Transmitter EUR7636070R
Batteries 2×
AA
Size
Fixing bands (TMME203 or TMME187) × 2
Dimensions (
W
×H×D) 36.2” (920 mm) × 21.7” (550 mm) × 3.5” (89 mm) 40.2” (1,020 mm) × 24” (610 mm) × 3.5” (89 mm)
Mass (weight)
main unit onl
y
approx. 50.7 lbs (37 inch) approx. 59.5 lbs (42 inch)
with speakers approx. 59.5 lbs (37 inch) approx. 68.3 lbs (42 inch)
Notes:
· Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.
CONTENTS
Page Page
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TH-37PH9UK / TH-42PH9UK

7.12. Removal of the SU-Board and the SD-Board 23
7.13. Removal of the SC-Board 23
7.14. Removal of the SS-Board 23
7.15. Removal of the C1, C2-Board 24
7.16. Removal of the S1-Board 24
7.17. Removal of the Fan 25
7.18. Removal of the Escutcheon 25
7.19. Removal of the V1-Board and the V2-Board 26
7.20. Removal of the Plasma Panel 26
8 Location of Lead Wiring 29
8.1. Wiring for the 37 inch model 29
8.2. Wiring for the 42 inch model 32
9 Adjustment Procedure 35
9.1. Driver Set-up 35
9.2. Initialization Pulse Adjust 36
9.3. P.C.B. (Printed Circuit Board) exchange 36
9.4. Adjustment Volume Location 37
9.5. Test Point Location 38
10 Service mode 39
10.1. CAT (computer Aided Test) mode 39
10.2. IIC mode structure (following items value is sample data.)
42
11 Adjustment 43
11.1. RGB white balance adjustment 43
11.2. HD white balance adjustment 45
11.3. Power control adjustment 47
12 Trouble shooting guide 48
12.1. Self Check 48
12.2. No Power 50
12.3. No Picture 50
12.4. Local screen failure 51
13 Option Setting 52
14 Conductor Views 55
14.1. P-Board (37inch) 55
14.2. P-Board (42inch) 58
14.3. PB-Board 61
14.4. HA-Board 62
14.5. HU-Board 63
14.6. HX-Board 64
14.7. H3, S1, V1 and V2-Board 65
14.8. J-Board (37inch) 66
14.9. J-Board (42inch) 68
14.10. DA-Board 70
14.11. D-Board 72
14.12. C1-Board (37inch) 74
14.13. C1-Board (42inch) 75
14.14. C2-Board (37inch) 76
14.15. C2-Board (42inch) 77
14.16. SC-Board 78
14.17. SU-Board (37inch) 81
14.18. SU-Board (42inch) 82
14.19. SD-Board (37inch) 83
14.20. SD-Board (42inch) 84
14.21. SS-Board 85
15 Block and Schematic Diagram 87
15.1. Schematic Diagram Notes 87
15.2. Main Block Diagram (37inch) 88
15.3. Main Block Diagram (42inch) 89
15.4. P-Board Block Diagram (37inch) 90
15.5. P-Board (1 of 6) Schematic Diagram (37inch) 91
15.6. P-Board (2 of 6) Schematic Diagram (37inch) 92
15.7. P-Board (3 of 6) Schematic Diagram (37inch) 93
15.8. P-Board (4 of 6) Schematic Diagram (37inch) 94
15.9. P-Board (5 of 6) Schematic Diagram (37inch) 95
15.10. P-Board (6 of 6) Schematic Diagram (37inch) 96
15.11. P-Board Block Diagram (42inch) 97
15.12. P-Board (1 of 6) Schematic Diagram (42inch) 98
15.13. P-Board (2 of 6) Schematic Diagram (42inch) 99
15.14. P-Board (3 of 6) Schematic Diagram (42inch) 100
15.15. P-Board (4 of 6) Schematic Diagram (42inch) 101
15.16. P-Board (5 of 6) Schematic Diagram (42inch) 102
15.17. P-Board (6 of 6) Schematic Diagram (42inch) 103
15.18. PB-Board Block and Schematic Diagram 104
15.19. HA-Board Block and Schematic Diagram 105
15.20. HU-Board Block Diagram 106
15.21. HU-Board (1 of 2) Schematic Diagram 107
15.22. HU-Board (2 of 2) Schematic Diagram 108
15.23. HX-Board Block and Schematic Diagram 109
15.24. V1 and V2-Board Block and Schematic Diagram 110
15.25. J-Board (1 of 2) Block Diagram 111
15.26. J-Board (2 of 2) Block Diagram 112
15.27. J-Board (1 of 5) and H3-Board Schematic Diagram
(37inch) 113
15.28. J-Board (2 of 5) Schematic Diagram (37inch) 114
15.29. J-Board (3 of 5) Schematic Diagram (37inch) 115
15.30. J-Board (4 of 5) Schematic Diagram (37inch) 116
15.31. J-Board (5 of 5) Schematic Diagram (37inch) 117
15.32. J-Board (1 of 5) and H3-Board Schematic Diagram
(42inch) 118
15.33. J-Board (2 of 5) Schematic Diagram (42inch) 119
15.34. J-Board (3 of 5) Schematic Diagram (42inch) 120
15.35. J-Board (4 of 5) Schematic Diagram (42inch) 121
15.36. J-Board (5 of 5) Schematic Diagram (42inch) 122
15.37. DA-Board (1 of 2) Block Diagram 123
15.38. DA-Board (2 of 2) Block Diagram 124
15.39. DA-Board (1 of 6) Schematic Diagram 125
15.40. DA-Board (2 of 6) Schematic Diagram 126
15.41. DA-Board (3 of 6) Schematic Diagram 127
15.42. DA-Board (4 of 6) Schematic Diagram 128
15.43. DA-Board (5 of 6) Schematic Diagram 129
15.44. DA-Board (6 of 6) Schematic Diagram 130
15.45. D-Board Block Diagram 131
15.46. D-Board (1 of 6) Schematic Diagram 132
15.47. D-Board (2 of 6) Schematic Diagram 133
15.48. D-Board (3 of 6) Schematic Diagram 134
15.49. D-Board (4 of 6) Schematic Diagram 135
15.50. D-Board (5 of 6) Schematic Diagram 136
15.51. D-Board (6 of 6) Schematic Diagram 137
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TH-37PH9UK / TH-42PH9UK

15.52. C1 and C2-Board Block Diagram 138
15.53. C1-Board (1 of 2) Schematic Diagram (37inch) 139
15.54. C1-Board (2 of 2) Schematic Diagram (37inch) 140
15.55. C1-Board (1 of 2) Schematic Diagram (42inch) 141
15.56. C1-Board (2 of 2) Schematic Diagram (42inch) 142
15.57. C2-Board (1 of 2) Schematic Diagram (37inch) 143
15.58. C2-Board (2 of 2) Schematic Diagram (37inch) 144
15.59. C2-Board (1 of 2) Schematic Diagram (42inch) 145
15.60. C2-Board (2 of 2) Schematic Diagram (42inch) 146
15.61. SC, SU and SD-Board Block Diagram (37inch) 147
15.62. SC, SU and SD-Board Block Diagram (42inch) 148
15.63. SC-Board (1 of 2) Schematic Diagram 149
15.64. SC-Board (2 of 2) Schematic Diagram 150
15.65. SU-Board (1 of 2) Schematic Diagram (37inch) 151
15.66. SU-Board (2 of 2) Schematic Diagram (37inch) 152
15.67. SU-Board (1 of 2) Schematic Diagram (42inch) 153
15.68. SU-Board (2 of 2) Schematic Diagram (42inch) 154
15.69. SD-Board (1 of 2) Schematic Diagram (37inch) 155
15.70. SD-Board (2 of 2) Schematic Diagram (37inch) 156
15.71. SD-Board (1 of 2) Schematic Diagram (42inch) 157
15.72. SD-Board (2 of 2) Schematic Diagram (42inch) 158
15.73. SS and S1-Board Block Diagram 159
15.74. SS and S1-Board Schematic Diagram 160
16 Parts Location 161
16.1. Exploded View 161
16.2. Cable relation 164
16.3. Packing summary 165
17 Mechanical Replacement Parts List 166
18 Replacement Parts List 167
18.1. Replacement Parts List Notes 167
18.2. Electrical Replacement Parts List (37 inch) 168
18.3. Electrical Replacement Parts List (42 inch) 191
4
TH-37PH9UK / TH-42PH9UK

1 Applicable signals
5
TH-37PH9UK / TH-42PH9UK

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 screw heads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1MΩand 5.2MΩ.
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 1.5kΩ, 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 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 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.
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.
6
TH-37PH9UK / TH-42PH9UK

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
aluminum 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, aluminum 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).
7
TH-37PH9UK / TH-42PH9UK

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.
8
TH-37PH9UK / TH-42PH9UK

5 Service Hint
Board Name Function
DA Digital Signal Processor, Micon
D Format Converter, Plasma AI Processor
Sub-Field Processor
J Slot Interface (Audio / Video / Sync input
Switch),
SYNC processor, Sound processor,
SS Sustain drive
SC Scan drive
SU Scan out (Upper)
SD Scan out (Lower)
C1 Data Drive (Right)
C2 Data Drive (Left)
H3 Speaker terminal
S1 Power switch
V1 Remote receiver, LED-G, R
V2 Key switch
P Power supply
PB Fan control
HX PC / RS-232C_Input terminal
HU Dual Video terminal (BNC / S)
HA Component Video terminal (BNC)
Note:
· Extension cable kit Slot Board is supplied as service fixtures and tools.
(Parts No. TZSC0704)
9
TH-37PH9UK / TH-42PH9UK

Board Name Function
DA Digital Signal Processor, Micon
D Format Converter, Plasma AI Processor
Sub-Field Processor
J Slot Interface (Audio / Video / Sync input
Switch),
SYNC processor, Sound processor,
SS Sustain drive
SC Scan drive
SU Scan out (Upper)
SD Scan out (Lower)
C1 Data Drive (Right)
C2 Data Drive (Left)
H3 Speaker terminal
S1 Power switch
V1 Remote receiver, LED-G, R
V2 Key switch
P Power supply
PB Fan control
HX PC / RS-232C_Input terminal
HU Dual Video terminal (BNC / S)
HA Component Video terminal (BNC)
Note:
· Extension cable kit Slot Board is supplied as service fixtures and tools.
(Parts No. TZSC0704)
10
TH-37PH9UK / TH-42PH9UK

6 Disassembly (37 inch)
· To disassemble P.C.B., wait for 1 minute after power was
off for discharge from electrolysis capacitors.
· and marks indicate screw positions.
6.1. Removal of the Back Cover
1. Remove the screws (×16 ,×5 ,×4 ) and then remove
the Back Cover.
6.2. Removal of the HU-Board
1. Remove the 4 screws(A) and then remove the HU Terminal
Block.
2. Remove the 4 screws(B).
3. Remove the 3 screws(C) and then remove the HU-Board.
6.3. Removal of the HA-Board
1. Remove the 4 screws(D) and then remove the HA Terminal
Block.
2. Remove the 4 screws(E).
3. Remove the 3 screws(F) and then remove the HA-Board.
6.4. Removal of the Slot Block
1. Disconnect the couplers (J1, J2, J3, J4, J5, J6, J7, J8, J10,
J15,J30).
2. Remove the 4 screws and then remove the Slot Block.
11
TH-37PH9UK / TH-42PH9UK

6.5. Removal of the J-Board
1. Remove the HU Terminal Block and the HA Terminal Block.
(Reference to Removal of the HU-Board and the HA-Board)
2. Remove the Slot Block.
(Reference to Removal of the Slot Block)
3. The Slot Block is turned inside out.
4. Remove the 6 screws and then remove the Slot cover.
5. Remove the 4 screws.
6. Release the coupler(J14) from HX-Board and then remove
the J-Board.
6.6. Removal of the HX-Board
1. Remove the HU Terminal Block and the HA Terminal Block.
(Reference to Removal of the HU-Board and the HA-Board)
2. Remove the Slot Block.
(Reference to Removal of the Slot Block)
3. Remove the J-Board.
(Reference to Removal of the J-Board)
4. Remove the 2 screws and then remove the Slot Case.
5. Remove the 4 Hexagonal-Head screws and the 1 screw
and then remove the HX-Board.
6.7. Removal of the PB-Board
1. Disconnect the couplers(PB30, PB31, PB33, PB35).
2. Remove the 1 screw and then remove the PB-Board.
12
TH-37PH9UK / TH-42PH9UK

6.8. Removal of the DA-Board
1. Disconnect the couplers(PB30, PB31, PB33, PB35).
2. Remove the 2 screws and then remove the PB-Board
Block.
3. Disconnect the couplers(DA1, DA3, DA5, DA6).
4. Remove the Flexible Cable from the coupler(DA2).
5. Remove the 2 screws and then remove the DA-Board and
Fixed Plate.
Note:
A re-setup of the destination is performed by MS mode
after DA-Board exchange.
6.9. Removal of the P-Board
1. Disconnect the couplers(P2, P5, P9, P10, P11, P12, P23,
P25)
2. Remove the 6 screws and then remove the P-Board.
6.10. Removal of the D-Board
1. Remove the Slot Block.
(Reference to Removal of the Slot Block)
2. Disconnect the couplers(D5, D20, D25)
3. Remove the Flexible Cable from the couplers (D3, D31,
D32).
4. Remove the 4 screws and then remove the D-Board.
6.11. Removal of the H3-Board (L,
R)
1. Remove the each 1 screw and then remove the Speaker
Terminal Block (L, R).
2. Disconnect the coupler(H37).
3. Remove the 3 screws (G) and then remove the H3-Board.
13
TH-37PH9UK / TH-42PH9UK

6.12. Removal of the SU-Board and
the SD-Board
1. Remove the Speaker Terminal Block(R).
(Reference to Removal of the H3-Board(L, R))
2. Remove the Flexible Cable from the couplers(SU1, SU2,
SU3, SD1, SD2, SD3).
3. Remove the each 2 screws.
4. Disconnect the couplers(SU45, SD46).
5. Slide the SU-Board and the SD-Board to the left, remove
the SU-Board and the SD-Board from the couplers(SC41,
SC42).
6.13. Removal of the SC-Board
1. Remove the Speaker Terminal Block(R).
(Reference to Removal of the H3-Board(L, R))
2. Disconnect the couplers(SU45, SD46).
3. Remove the each 2 screws ( ) and then slide the SU-Board
and the SD-Board to the left.
4. Disconnect the couplers(SC2, SC20, SC23).
5. Remove the 6 screws and then remove the SC-Board.
6.14. Removal of the SS-Board
1. Disconnect the couplers(SS11, SS12, SS23, SS34).
2. Remove the Flexible Cable from the couplers(SS41, SS42,
SS43, SS44).
3. Remove the 6 screws and then remove the SS-Board.
14
TH-37PH9UK / TH-42PH9UK

6.15. Removal of the C1, C2-Board
1. Remove the Slot Block.
(Reference to Removal of the Slot Block)
2. Remove the Speaker Terminal Block(L, R).
(Reference to Removal of the H3-Board(L, R))
3. Remove the each 3 screws and then remove the Stand
Block(L, R).
6.15.1. Removal of the C1-Board
1. Remove the Flexible Cable from the couplers(C11, C12).
2. Remove the 8 screws ( ) and then remove the Flexible
Cable from the couplers(CB1, CB2, CB3, CB4).
3. Remove the 4 screws ( ) and then remove the C1-Board.
6.15.2. Removal of the C2-Board
1. Remove the Flexible Cable from the couplers(C21, C22).
2. Remove the 8 screws ( ) and then remove the Flexible
Cable from the couplers(CB5, CB6, CB7, CB8).
3. Remove the 4 screws ( ) and then remove the C2-Board.
6.16. Removal of the S1-Board
1. Disconnect the coupler(SS34).
2. Remove the 2 screws(H) and then remove the S1-Board
Block.
3. Disconnect the coupler(S34).
4. Remove the 1 screw(J) and then remove the S1-Board.
15
TH-37PH9UK / TH-42PH9UK

6.17. Removal of the Fan
1. Disconnect the Fan Relay Couplers.
2. Remove the each 3 screws and then remove the 2 Fan
Blocks.
3. Remove the each 4 screws (K) and then remove the Fans.
4. Reassemble the Fans in reverse order.
5. Stick the Cushion (Fan) around the Fan.
Note:
The Cushion (Fan) are unsuitable to reuse.
Please use a new one at the time of Fan exchange.
6.18. Removal of the Escutcheon
1. Remove the S1-Board Block.
(Reference to Removal of the S1-Board)
2. Disconnect the couplers(J2, J15).
3. Remove the 2 screws of the Escutcheon.
4. Pull the bottom of the Escutcheon in the direction of the
arrow1 and then lift up the Escutcheon to remove in the
direction of the arrow2.
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TH-37PH9UK / TH-42PH9UK

6.19. Removal of the V1-Board and
the V2-Board
1. Remove the Escutcheon.
(Reference to Removal of the Escutcheon)
2. Remove the 5 screws and then remove the Fixed Angle.
3. Remove the 1 screw(L).
4. Disconnect the coupler(V2) and then remove the V1-Board.
5. Remove the operation button from the V2-Board.
6. Disconnect the coupler(V15) and then remove the V2-
Board.
6.20. Removal of the Plasma Panel
1. Disconnect the Fan Relay Couplers.
2. Remove the each 3 screws ( ) and then remove the 2 Fan
Blocks.
3. Remove the each 3 screws ( ) and then remove the Stand
Black(L, R).
4. Disconnect the couplers(J1, J2, J3, J4, J5, J6, J7, J8, J10,
J15, J30).
5. Remove the 4 screws and then remove the Slot Block.
6. Disconnect the coupler(DA5).
7. Remove the Flexible Cable from the coupler(DA2).
8. Remove the 4 screws and then remove the DA-Board
Block.
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TH-37PH9UK / TH-42PH9UK

9. Disconnect the couplers(P2, P9, P11, P12, P23, P25).
10. Remove the 6 screws ( ) and then remove the P-Board.
11. Remove the each 1 screw ( ) and then remove the
Speaker Terminal Black(L, R).
12. Disconnect the coupler(D20).
13. Remove the Flexible Cable from the couplers(D31, D32).
14. Remove the 4 screws and then remove the D-Board.
15. Remove the SU-Board and the SD-Board.
(Reference to Removal of the SU-Board and the SD-Board)
16. Remote the 1 screw ( ) and then remove the clamper.
17. Remove the 6 screws ( ) and then remove the SC-Board.
18. Disconnect the couplers(SS23, SS34).
19. Remove the Flexible Cable from the couplers(SS41, SS42,
SS43, SS44)
20. Remove the 6 screws and then remove the SS-Board.
21. Remove the Flexible Cable from the coupler(C12).
22. Remove the 8 screws ( ) and then remove the Flexible
Cable from the couplers(CB1, CB2, CB3, CB4).
23. Remove the 4 screws ( ) and then remove the C1-Board.
24. Remove the 8 screws ( ) and then remove the Flexible
Cable from the couplers(CB5, CB6, CB7, CB8).
25. Remove the 4 screws ( ) and then remove the C2-Board.
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TH-37PH9UK / TH-42PH9UK

26. Remove the 2 screws ( ) and then remove the S1-Board
Block.
27. Remove the 3 screws ( ) and then remove the AC Inlet
Block.
28. Remove the 2 screws of the Escutcheon.
29. Lift up the bottom of the Plasma Panel in the direction of the
arrow 1 and pull the Plasma Panel in the direction of the
arrow 2 and then remove the Plasma Panel.
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TH-37PH9UK / TH-42PH9UK

7 Disassembly (42 inch)
· To disassemble P.C.B., wait for 1 minute after power was
off for discharge from electrolysis capacitors.
· and marks indicate screw positions.
7.1. Removal of the Back Cover
1. Remove the screws (×18 ,×6 ,×4 ) and then remove
the Back Cover.
7.2. Removal of the HU-Board
1. Remove the 4 screws(A) and then remove the HU Terminal
Block.
2. Remove the 4 screws(B).
3. Remove the 3 screws(C) and then remove the HU-Board.
7.3. Removal of the HA-Board
1. Remove the 4 screws(D) and then remove the HA Terminal
Block.
2. Remove the 4 screws(E).
3. Remove the 3 screws(F) and then remove the HA-Board.
7.4. Removal of the Slot Block
1. Disconnect the couplers (J1, J2, J3, J4, J5, J6, J7, J8, J10,
J15,J30).
2. Remove the 4 screws and then remove the Slot Block.
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TH-37PH9UK / TH-42PH9UK