Panasonic TH-42PHW7EX User manual

Power Source: AC120V 50/60Hz (UY version)
AC220-240V 50/60Hz
(Except UY version model)
Power Consumption: 375 W (UY
v
ersion), 315 W (Exce
p
t
U
Y
version model)
Save off 0.8
W
,Saveon0.5W
(
stand
-
b
y
condition)
(UY version)
Save off 1.0 W, Save on 0.7 W (stand-by
condition)
(Except UY version model)
0.1 W (Powe
r
off condition)
(UY version model)
0.3 W (Power off condition)
(Except UY version model)
Plasma Display panel: Drive metho
d
AC type
16:9 aspec
t
r
atio
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
1
5
-
1
10kH
z
Vertical scanning frequency 48
-
1
20H
z
Connection terminals:
© 2004 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
TH-42PHW7EX
TH-42PHD7EK
TH-42PHD7BK
TH-42PHD7UY
GPH7D Chassis
A
V
(
UY versio
n
)
Video
i
n1.0 Vp-p (75-ohm)
S
-VIDEO
I
N
(MINI DIN 4PIN) Y: 1 Vp-p (75-oh
m
),
C
:
0
.286 Vp-
p
(75-ohm)
AUDIO
I
N
(RCA PIN JACK × 2) 0.5 Vrms (high imped
a
nce)
C
OMP
O
NEN
T
/RGB
(
UY version)
Y
/G 1.0 Vp-p/composite
(
75-
o
hm)
0.7 Vp-p/non-compo
s
ite
(
75-
o
hm)
P
B
/
B0.7 Vp-p (75-ohm)
P
R
/
R0.7 Vp-p (75-ohm)
H
D1.0 - 5.0 Vp-p (high
i
mped
a
nce)
VD 1.0 - 5.0 Vp-p (high
i
mped
a
nce)
AUDIO
I
N
(RCA PIN JACK×2)
0.5 Vrms (high imped
a
nce)
P
C
(
HIGH
-
D
ENS
I
TY
D-SUB15PIN)
R,G,B/0.7 Vp-p (75-
o
hm)
HD, VD/1.0 - 5.0 Vp-p
(
high
impedance)
AUDIO
I
N
(
M3
J
ACK
)
0.5Vrms (high imped
a
nce)
S
ERIA
L
E
XTE
R
NAL
C
ONT
R
OL
TERMINAL (D-SUB9PIN)
RS-232C COMPATIBL
E
S
PEA
K
ERS
(
Exte
r
nal
speakers) (6W
WW
W)16W [8W+8W] (10%
T
HD)
D
ime
n
sion
s
(
W×H
×
D):
1
,020 mm × 610 mm 89
m
m
W
eig
h
t
(
Mass
)
a
pprox. 29.5 kg net (main
u
nit
o
nly)
approx. 33.7 kg net (with speakers)
High Definition Plasma Display
Specifications
ORDER NO. ITD0410050C0
D10 Canada: B07

1 Applicable signals 4
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 PCB Structure sheet of GPH7D chassis 8
6 Service Hint 9
7 P.C.Board and Plasma panel replacement method 10
7.1. Remove the Back cover. 10
7.2. Remove the P-Board. 10
7.3. Remove the Z-Board. 10
7.4. Remove the D-Board. 10
7.5. Remove the PF-Board. 11
7.6. Remove the SU-Board. 11
7.7. Remove the SD-Board. 11
7.8. Remove the SC-Board. 12
7.9. Remove the SS3-Board. 12
7.10. Remove the SS2-Board. 12
7.11. Remove the SS-Board. 13
7.12. Remove the H3-Board. 13
7.13. Remove the Fan (L) and Fan (R). 13
7.14. Remove the C1-Board. 13
7.15. Remove the C2-Board. 14
7.16. Remove the Slot box (J-Board, DR-Board, HX-Board). 14
7.17. Remove the J-Board, the DR-Board and the HX-Board. 14
7.18. Remove the stand brackets. 15
7.19. Remove the C3-Board. 15
7.20. Remove the C4-Board. 15
7.21. Remove the S1-Board. 15
7.22. Remove the Plasma panel section from the Front frame
(glass). 16
7.23. Replace the plasma panel (finished). 16
7.24. Connection of flexible cable 17
8 Location of Lead Wiring 18
9 Adjustment Procedure 19
9.1. Driver Set-up 19
9.2. Initialization Pulse Adjust 20
9.3. P.C.B. (Printed Circuit Board) exchange 21
9.4. Adjustment Volume Location 21
9.5. Test Point Location 21
10 Service mode 22
10.1. CAT (computer Aided Test) mode 22
10.2. IIC mode structure (following items value is sample data.)
24
11 Alignment 25
11.1. Pedestal setting (C) 25
11.2. Pedestal setting (B) 26
11.3. NTSC panel white balance 27
11.4. PAL/SECAM panel white balance 28
11.5. PC/RGB panel white balance 30
11.6. HD/ 525i /525p /625I /625P panel white balance 32
12 Trouble shooting guide 34
12.1. Self Check 34
12.2. No Power 35
12.3. No Picture 36
12.4. Local screen failure 36
13 Option Setting 37
13.1. How to access and setting 37
13.2. Contents of Open Menu 38
14 Circuit Board Layout 39
14.1. PF-Board 39
14.2. P-Board 41
14.3. HA-Board 44
14.4. HB-Board 45
14.5. HX-Board 46
14.6. J-Board 47
14.7. D-Board 49
14.8. C1-Board 51
14.9. C2-Board 52
14.10. C3-Board 53
14.11. C4-Board 54
14.12. SC-Board 55
14.13. SU-Board 58
14.14. SD-Board 59
14.15. SS-Board 60
14.16. Z-Board 62
14.17. H3, S1 and V1-Board 63
15 Schematic Diagrams 65
15.1. Schematic Diagram Notes 65
15.2. Main Block Diagram 66
15.3. Power Block Diagram 67
15.4. PF-Board Schematic Diagram 68
15.5. P-Board (1 of 6) Schematic Diagram 69
15.6. P-Board (2 of 6) Schematic Diagram 70
15.7. P-Board (3 of 6) Schematic Diagram 71
15.8. P-Board (4 of 6) Schematic Diagram 72
15.9. P-Board (5 of 6) Schematic Diagram 73
15.10. P-Board (6 of 6) Schematic Diagram 74
15.11. HA-Board Block Diagram and Schematic Diagram 75
CONTENTS
Page Page
2
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

15.12. HB-Board Block Diagram 76
15.13. HB-Board (1 of 2) Schematic Diagram 77
15.14. HB-Board (2 of 2) Schematic Diagram 78
15.15. HX-Board Block Diagram and Schematic Diagram 79
15.16. J-Board Block Diagram 80
15.17. J-Board (1 of 4) Schematic Diagram 81
15.18. J-Board (2 of 4) Schematic Diagram 82
15.19. J-Board (3 of 4) Schematic Diagram 83
15.20. J-Board (4 of 4) Schematic Diagram 84
15.21. D-Board (1 of 2) Block Diagram 85
15.22. D-Board (2 of 2) Block Diagram 86
15.23. D-Board (1 of 12) Schematic Diagram 87
15.24. D-Board (2 of 12) Schematic Diagram 88
15.25. D-Board (3 of 12) Schematic Diagram 89
15.26. D-Board (4 of 12) Schematic Diagram 90
15.27. D-Board (5 of 12) Schematic Diagram 91
15.28. D-Board (6 of 12) Schematic Diagram 92
15.29. D-Board (7 of 12) Schematic Diagram 93
15.30. D-Board (8 of 12) Schematic Diagram 94
15.31. D-Board (9 of 12) Schematic Diagram 95
15.32. D-Board (10 of 12) Schematic Diagram 96
15.33. D-Board (11 of 12) Schematic Diagram 97
15.34. D-Board (12 of 12) Schematic Diagram 98
15.35. C1, C2, C3, C4, and V1-Board Block Diagram 99
15.36. C1-Board (1 of 2) Schematic Diagram 100
15.37. C1-Board (2 of 2) Schematic Diagram 101
15.38. C2-Board (1 of 2) Schematic Diagram 102
15.39. C2-Board (2 of 2) Schematic Diagram 103
15.40. C3-Board (1 of 2) Schematic Diagram 104
15.41. C3-Board (2 of 2) and V1-Board Schematic Diagram 105
15.42. C4-Board (1 of 2) V1-Board Schematic Diagram 106
15.43. C4-Board (2 of 2) Schematic Diagram 107
15.44. SC-Board Block Diagram 108
15.45. SC-Board (1 of 3) Schematic Diagram 109
15.46. SC-Board (2 of 3) Schematic Diagram 110
15.47. SC-Board (3 of 3) Schematic Diagram 111
15.48. SU-Board Block Diagram 112
15.49. SU-Board (1 of 2) Schematic Diagram 113
15.50. SU-Board (2 of 2) Schematic Diagram 114
15.51. SD-Board Block Diagram 115
15.52. SD-Board (1 of 2) Schematic Diagram 116
15.53. SD-Board (2 of 2) Schematic Diagram 117
15.54. SS, SS2, SS3, and S1-Board Block Diagram 118
15.55. SS, SS2, SS3, and S1-Board Schematic Diagram 119
15.56. Z-Board and H3-Board Block Diagram 120
15.57. Z-Board (1 of 2) and H3-Board Schematic Diagram 121
15.58. Z-Board (2 of 2) Schematic Diagram 122
16 Parts Location 123
17 Packing Exploded Views 124
17.1. Packing Exploded Views (1) 124
17.2. Packing Exploded Views (2) 125
17.3. Packing Exploded Views (3) 126
18 Mechanical Replacement Parts List 127
19 Replacement Parts List 129
19.1. Relpacement Parts List Notes 129
19.2. Electrical Replacement Parts List 130
3
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

1 Applicable signals
4
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

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
1MWand 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 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.
5
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

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-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

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-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

5 PCB Structure sheet of GPH7D chassis
Board Name Function Remarks
DDigital Signal Processor 1
JSlot Interface & SYNC processor 1
ZAudio out, DC-DC converter
SS Sustain Out 1
SC Scan out 1
SU Sustain connection (Upper) 1
SD Sustain connection (Lower) 1
C1 Data Drive (Upper Right)
C2 Data Drive (Upper Left)
C3 Data Drive (Lower Left)
C4 Data Drive (Lower Left)
H3 Speaker terminal
S1 Power switch
SS3 Sustain connection (Upper)
SS2 Sustain connection (Lower)
V1 Front SW. & Remote receiver
PF Line filter
PPower supply 1
HX PC_type_Input terminal
HB BNC Composite Video 2, 3
HA BNC Component Video 2, 3
Remarks
1.Recommend PCB´s for initial service for GPH7D chassis.
2.For System model except BK EK version
3.For Consumer model except EX version
8
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

6 Service Hint
Service position for HB-Board, HA-Board and TY-42TM6
Note:
Extension cable kit Slot Board is supplied as service fixtures and tools.
(Parts No. TZSC0704)
9
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

n
nn
nTo replace the plasma panel (finished), place the unit on
the servicing stand, remove the front frame (finished), and
replace the panel, being careful not to scratch the plasma
panel surface.
7.1. Remove the Back cover.
7.2. Remove the P-Board.
Caution:
To remove P.C.B., wait 1 minute after power was off for
discharge from electrolisis capacitors.
1.Remove the couplers (P2, P5, P9, P10, P11, P12, P23,
P25, P27).
2.Remove the screws (×8) and remove the P-Board.
7.3. Remove the Z-Board.
1.Remove the couplers (Z5, Z6, Z7, Z8, Z10, Z30, Z31).
2.Remove the screws (×4 ) and remove the Z-Board with
theZ-BoardBracket.
3.Remove the screws (×4 ) and remove the Z-Board.
7.4. Remove the D-Board.
1.Disconnect the couplers (D1, D3, D5, D20, D25, D27) and
the flexible cables (D31, D32, D33, D34).
2.Remove the screws (×5 ) and remove the D-Board with
the bracket.
3.Remove the screws (×3 ) and remove the D-Board.
7 P.C.Board and Plasma panel replacement method
10
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

7.5. Remove the PF-Board.
1.Remove the couplers (PF9, PF10) and PF-Board shield
cover.
2.Remove the screws (×4 ), and remove the PF-Board
with the Bracket.
3.Remove the coupler (PF1) and remove the screws (×3
).
4.Remove the screw (×2 ) on the AC inlet and remove the
AC inlet.
5.Remove the PF-Board.
7.6. Remove the SU-Board.
1.Remove the screws (×2).
2.Slide the SU-Board to the left to disconnect from a coupler
(SC41 - SU41) on the SC-Board and remove a coupler
(SU45 or SC45).
3.Remove the flexible cables (SU1, SU2, SU3, SU4)
connected to the SU-Board, and remove the SU-Board.
7.7. Remove the SD-Board.
1.Remove a screw ( ) to detach the Speaker Terminal (R)
and remove the screws (×2 ).
2.Slide the SD-Board to the left to disconnect from a coupler
(SC42 - SD42) on the SC-Board and remove a coupler
(SD46 or SC46).
11
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

3.Remove the flexible cables (SD1, SD2, SD3, SD4)
connected to the SD-Board, and remove the SD-Board.
7.8. Remove the SC-Board.
1.Remove the couplers (SC2, SC20, SC23), the screws (×6)
and remove the SC-Board.
7.9. Remove the SS3-Board.
1.Remove the coupler (SS22), and remove the flexible cable
(SS58).
2.Remove the screws (×2), and remove the SS3-Board.
7.10. Remove the SS2-Board.
1.Remove a screw ( ) and remove the Speaker terminal
(L).
2.Remove the coupler (SS23) and the flexible cable (SS55).
3.Remove the screws (×2 ), and remove the SS2-Board.
12
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

7.11. Remove the SS-Board.
1.Remove the SS2-Board and SS3-Board.
2.Remove the couplers (SS11, SS12, SS32, SS34, SS42).
3.Remove the flexible cables (SS51, SS52, SS53, SS54).
4.Remove the screws (×7), and remove the SS-Board.
7.12. Remove the H3-Board.
1.Remove the screws (×3), remove the H3-Board and remove
a coupler (H37).
7.13. Remove the Fan (L) and Fan
(R).
1.Remove the screws (×3 each) remove the fan (L, R) and
disconnect the relay coupler.
7.14. Remove the C1-Board.
1.Remove the fan (L).
2.Remove the flexible cable holder fastening screws (×8 )
and remove the flexible cables (CA1 ~ CA4).
3.Remove the flexible cables (C11, C12) and remove a rivet
on the flexible cable.
4.Remove the screws (×3 ) and remove the C1-Board.
13
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

7.15. Remove the C2-Board.
1.Remove the fan (R).
2.Remove the flexible cable holder fastening screws (×8 )
and remove the flexible cables (CA5 ~ CA8).
3.Remove the flexible cables (C21, C22).
4.Remove the screws (×3 ), a coupler (C32) and remove
the C2-Board.
7.16. Remove the Slot box (J-Board,
DR-Board, HX-Board).
1.Remove the couplers (J1, J3, J5, J6, J8, J10), remove the
screws (×4) and remove the Slot box.
7.17. Remove the J-Board, the DR-
Board and the HX-Board.
<DR-Board>
1.Remove the screws (×4) and remove (pull out )the
DR-Board with connector cover.
2.Remove the hexagon head screws (×4 ), the pan
head screws (×4 ) and remove the DR-Board.
<J-Board>
1.Remove the screws (×7), disconnect the coupler (J14 -
HX1) and remove the J-Board.
2.Remove the screws (×6) and remove the Slot box cover.
14
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

<HX-Board>
1.Remove a screw ( ) and the hexagon head screws
(×4 ) and remove the HX-Board.
7.18. Remove the stand brackets.
1.Remove the plasma panel section from the servicing stand
and lay on a flat surface such as a table (covered), with the
plasma panel surface facing downward.
Spread a soft cloth or similar on the table for protection, so
the panel surface is not scratched.
2.Remove the stand bracket (left, right) fastening screws (×3
each) and remove the stand brackets (left, right).
7.19. Remove the C3-Board.
1.Remove the flexible cable holder fastening screws (×8), and
remove the flexible cables (CB5, CB6, CB7, CB8).
2.Remove the couplers (C42, C44), the flexible cables (C31,
C33) and release the speaker cables from the clamper on
the C3-Board.
3.Remove the screws (×3 ), and remove the C3-Board.
7.20. Remove the C4-Board.
1.Remove the flexible cable holder fastening screws (×8 )
and remove the flexible cables (CB1, CB2, CB3).
2.Remove the flexible cables (C41, C43) and release the
speaker cables from the clampers (×2) on the C4-Board.
3.Remove the screws (×3 ), and remove the C4-Board.
7.21. Remove the S1-Board.
1.Remove a screw, remove the S1-Board and remove the
coupler (S34).
15
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

7.22. Remove the Plasma panel
section from the Front frame
(glass).
1.Remove the front frame and the plasma panel fastening
screws (×2 ).
2.Remove the coupler (C44 on the C3-Board) and release the
cables from the clamper.
3.Remove the S1-Board.
4.For leaving the plasma panel from the front frame, pull the
bottom of the front frame forward, lift, and remove.
7.23. 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 C3-Board and the C4-Board, connect the flexible
cables (×8) from the Plasma panel to the C3-Board and C4-
Board, and fix the flexible cable holders.
3.Attach the Hooks (left, right) and fit the stand brackets (left,
right) to the new plasma panel.
4.Place the plasma panel section on the servicing stand.
5.Attach the front frame and the each P.C.Board and so on,
to the new plasma panel.
* When fitting the front frame, be careful not to allow
any debris, dust or handling residues to remain
between the front glass and plasma panel.
16
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

7.24. Connection of flexible cable
C11, C21, C31, C41, CA1-CA8, D31-D34, SD1-SD4, SU1-SU4
C12, C22, C33, C43
CB1-CB8
SS51-SS55, SS58
17
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

8 Location of Lead Wiring
18
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

9.1. Driver Set-up
9.1.1. Item / Preparation
1.Input an APL 100 % white signal.
2.Set the picture controls: -
Picture mode: Normal
White balance: Cool
Aspect: 16:9
9.1.2. Adjustments
Adjust driver section voltages referring the panel data on the
panel data label.
Name Test Point Voltage Volume Remarks
Vsus TPVSUS
(SS) 185V ± 2V R641 (P)
Ve TPVE (SS) 160V ± 1V VR6145 (SS)
Vda TPVDA (SS) 67V ± 1V R665 (P)
Vad TPVAD (SC) -105V ± 1V VR6477
(SC)
Vscn TPVSCN
(SC) Vad*+130V ± 4V ---
Vset TPVSET
(SC) 240V ± 1V VR6541 (SC)
PFC C448 (+) (-) 395V ± 0.5V R443 (P)
Vdat C560 (+) (-) 69V ± 0.1V R661 (P) load current:
0.4A
Vsus TPVSUS 175V ± 1V R608 (P) load current:
1.9A
*See the Panel label.
9 Adjustment Procedure
19
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY

9.2. Initialization Pulse Adjust
1.Input a Cross hatch signal.
2.Set the picture controls: -
Picture mode: Normal
White balance: Cool
Adjust the indicated test point for the specified wave form.
Test point Volume Level
T1 TPSC1 (SC) VR6523 (SC) 10 ± 5µ Sec
T2 TPSS1 (SS) VR6557 (SC) 220 ± 10µ Sec
20
TH-42PHW7EX / TH-42PHD7EK / TH-42PHD7BK / TH-42PHD7UY