17 Mechanica l Replacement Parts List
18 Replacement Parts List
18.1. Relpacement Parts List Notes
18.2. Electrical Replacement Parts List
133
134
134
135
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1 Applicable signals
TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
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.
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
1MΩ and 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.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
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 Remove device. Some solder Remove 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
todamage an ES device).
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
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
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.
stamped on the back of PCB.
8
5 PCB Structure sheet of GPH8D chassis
Board NameFunctionRemarks
DDigital Signal Processor,
Format Converter,
Plasma AI Processor
JSlot Interface (Audio/Video/Sync input Switch),
SYNC processor, Audio processor,
Speaker out amplifier,
2. Remove the 8 screws and then remove the P-Board.
4. Remove the P(P-1)-Board from the 6 molding props.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
7.8.2. Removal of the P(P-2)-Board
1. Disconnect the couplers(CN05, CN06, CN08).
2. Remove the 5 screws.(Top view)
3. Remove the 8 screws.(Bottom view)
Note:
· When assembling the P(P-1)-Board and the P(P-2)Board, the position of each hole of the insulation
sheets(A, B, C, D) is set to the position of each hole of
the P(P-1)-Board and the P(P-2)-Board and then
assemble them. (
marks indicate setting positions.)
4. Remove the P(P-2)-Board from the 6 molding props.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
7.9. Removal of the SU-Board and
the SD-Board
1. Disconnect the couplers(SC45, SC46).
2. Remove the each 4 screws.
3. Slide the SU-Board and the SD-Board to the left (arrow1).
4. Disconnect the coupler(SU45).
5. Remove the flexible cables from the couplers(SU1, SU2,
SU3, SU4) and then remove the SU-Board.
6. Disconnect the coupler(SD46).
7. Remove the flexible cables from the couplers(SD1, SD2,
SD3, SD4) and then remove the SD-Board.
7.10. Removal of the SC-Board
1. Disconnect the couplers(PB31, PB32).
2. Remove the each 4 screws and then remove the Fan Block
(C).
3. Slide the SU-Board and the SD-Board to the left.
(Refarence to Removal of the SU-Board and the SD-Board)
4. Disconnect the couplers(SC2, SC20, SC23).
5. Remove the 10 screws of the SC-Board and slide the SCBoard in the direction of the arrow (A) and then remove the
SC-Board.
Note:
Remove the SC-Board not to damage the flexible cables
of the SU-Board and the SD-Board, parts on the SCBoard.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
7.11. Removal of the SS2-Board and
the SS3-Board
1. Disconnect the coupler(SS23).
2. Remove the flexible cables from the couplers(SS51, SS52).
3. Disconnect the coupler(SS27).
4. Remove the flexible cables from the couplers(SS57, SS58).
5. Remove the each 3 screws and then remove the SS2-
Board and the SS3-Board.
7.13. Removal of the H3-Board (L,
R)
1. Remove the each 2 screws and then remove the Speaker
Terminal Blocks (L, R).
7.12. Removal of the SS-Board
1. Disconnect the couplers(PB35, PB38).
2. Remove the 4 screws and then remove the Fan Block (D).
4. Remove the flexible cables from the couplers(SS53, SS54,
SS55, SS56).
5. Remove the 10 screws of the SS-Board and slide the SSBoard in the direction of the arrow (B) and then remove the
SS-Board.
Note:
Remove the SS-Board not to damage the flexible cables
of the Plasma Panel and parts on the SS-Board.
2. Disconnect the coupler(H37).
3. Remove the 3 screws (K) and then remove the H3-Board.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
7.14. Removal of the C1, C2, C3, C4,
C5 and the C6-Board
1. Remove the each 4 screws and then remove the Fan
Blocks (A, B).
2. Remove the each 2 screws and then remove the Speaker
Terminal Blocks (L, R).
7.14.1. Removal of the C1-Board
1. Remove the flexible cable from the coupler(C10).
2. Disconnect the coupler(C11).
3. Remove the 8 screws and then remove the flexible cables
from the couplers(CA1, CA2, CA3, CA4).
4. Remove the 6 screws and then remove the C1-Board.
7.14.2. Removal of the C2-Board
1. Remove the flexible cables from the couplers(C20, C21,
C24, C25).
2. Disconnect the couplers(C22, C23).
3. Remove the 6 screws and then remove the flexible cables
from the couplers(CA5, CA6, CA7).
4. Remove the 6 screws and then remove the C2-Board.
7.14.3. Removal of the C3-Board
1. Remove the flexible cable from the coupler(C31).
2. Disconnect the couplers(C33, C35).
3. Remove the 8 screws and then remove the flexible cables
from the couplers(CA8, CA9, CA10, CA11).
4. Remove the 6 screws and then remove the C3-Board.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
7.14.4. Removal of the C4-Board
1. Remove the flexible cable from the coupler(C41).
2. Disconnect the couplers(C42, C43, C44).
3. Remove the 8 screws and then remove the flexible cables
from the couplers(CB8, CB9, CB10, CB11).
4. Remove the 6 screws and then remove the C4-Board.
7.14.5. Removal of the C5-Board
1. Remove the flexible cables from the couplers(C50, C51,
C54, C55).
2. Disconnect the couplers(C52, C53).
3. Remove the 6 screws and then remove the flexible cables
from the couplers(CB5, CB6, CB7).
4. Remove the 6 screws and then remove the C5-Board.
7.14.6. Removal of the C6-Board
1. Remove the flexible cable from the coupler(C60).
2. Disconnect the coupler(C61).
3. Remove the 8 screws and then remove the flexible cables
from the couplers(CB1, CB2, CB3, CB4).
4. Remove the 6 screws and then remove the C6-Board.
7.15. Removal of the Fan
1. Disconnect the couplers(PB31, PB32, PB33, PB34, PB35,
PB37, PB38).
2. Remove the each 4 screws and then remove the Fan
Blocks(A, B, C, D).
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
7.15.1. Removal of the Fan (Middle/R)
1. Remove the 4 screws and then remove the Fan (Middle/R).
7.15.2. Removal of the Fan (Big) and the
Fan (Middle/L)
1. Remove the 4 screws and then remove the Fan (Big).
2. Remove the 4 screws and then remove the Fan (Middle/L).
7.15.4. Removal of the Fan (SC/SS) on the
SS-Board side
1. Remove the each 4 screws and then remove the Fans (SC/
SS).
7.16. Removal of the Escutcheon
1. Disconnect the couplers(J34, SS34).
2. Remove the 13 screws.
7.15.3. Removal of the Fan (SC/SS) on the
SC-Board side
1. Remove the each 4 screws and then remove the Fans
(SC/SS).
3. Pull the bottom of the Escutcheon in the direction of the
arrow1 and lift up the Escutcheon in the direction of the
arrow2 and then remove the Escutcheon.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
4. Remove the 2 screws(L) and then remove the S1-Board
Block and then Power Button Block.
5. Remove the 2 screws(M) amd then remove the V1-Board
and the Hinge Button Block.
7.17. Removal of the S1-Board and
the V1-Board
1. Remove the Escutcheon.
(Refernce to Removal of Escutcheon)
2. Remove the 2 screws (N) and then remove the S1-Board
Block.
3. Remove the 1 screw (P) and then remove the S1-Board.
4. Remove the 2 screws (R) and then remove the V1-Board.
5. Disconnect the coupler(S34) and then remove the S1-
Board.
6. Disconnect the coupler(V34) and then remove the V1-
Board.
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7.18. Removal of the Plasma Panel
1. Disconnect the couplers(PB31, PB32, PB33, PB34, PB35,
PB37, PB38).
2. Remove the each 4 screws and then remove the Fan
Blocks(A, B, C, D).
TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
9. Disconnect the couplers(P2, P9, P11, P12, P23).
10. Remove the 8 screws and then remove the P-Board.
11. Remove the each 2 screws and then remove the Speaker
Terminal Blocks (L, R).
3. Remove the each 2 screws and then remove the
Reinforcement Angles (L, R).
4. Remove the each 2 screws and then remove the
Connection Plate (A, B, C, D).
5. Remove of the Slot Block.
(Reference to Removal of the Slot Block).
6. Disconnect the couplers(D20, D25, PB30).
7. Remove the flexible cables from the couplers(D31, D32,
D33, D34).
8. Remove the 7 screws and then remove the PB-Board Block
and D-Board.
12. Disconnect the couplers(SC45, SC46).
13. Remove the each 4 screws and then slide the SU-Board
and the SD-Board to the left (arrow 1).
14. Remove the flexible cables from the couplers(SU1, SU2,
SU3, SU4, SD1, SD2, SD3, SD4) and then remove the SUBoard and the SD-Board.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
15. Remove the 10 screws and then remove the SC-Board.
22. Disconnect the couplers(C11, C33).
23. Remove the flexible cables from the couplers(C10, C21,
C24, C25).
24. Remove the each 6 screws and then remove the C1-Board,
the C2-Board and the C3-Board.
16. Remove the SS2-Board and the SS3-Board.
(Reference to Removal of the SS2-Board and the SS3-
Board).
17. Disconnect the couplers(SS34, SS35, SS42, SS44).
18. Remove the flexible cables from the couplers(SS53, SS54,
SS55, SS56).
19. Remove the 10 screws and then remove the SS-Board.
20. Remove the 22 screws.
21. Remove the flexible cables from the couplers(CA1, CA2,
CA3, CA4, CA5, CA6, CA7, CA8, CA9, CA10, CA11).
25. Remove the 22 screws.
26. Remove the flexible cables from the couplers(CB1, CB2,
CB3, CB4, CB5, CB6, CB7, CB8, CB9, CB10, CB11).
27. Disconnect the couplers(C43, C61).
28. Remove the flexible cables from the couplers(C41, C50,
C54, C55).
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
29. Remove the each 6 screws and then remove the C4-Board,
the C5-Board and the C6-Board.
30. Remove the each 2 screws and then remove the Shield
Plate and the Angle.
31. Remove the 4 screws and then remove the AC Inlet Block.
arrow2 and then remove the Plasma Panel.
32. Remove the each 2 screws and then remove the Shield
Plates (A, B).
33. Remove the each 3 screws and then remove the Cable
Holders (A, B) and the flexible cables.
34. Remove the 13 screws of the Escutcheon.
35. Lift up the bottom of the Plasma Panel in the direction of the
arrow1 and pull the Plasma Panel in the direction of the
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
8 Location of Lead Wiring
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
25
TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
9 Adjustment Procedure
9.1. Driver Set-up
9.1.1. Item / Preparation
1. Input a white signal of the RGB signal generator.
2. Set the picture adjustment items as follows.
·Picture menu : Standard
·Color temperature : Normal
·Picture : 25
·Aspect : Full
9.1.2. Adjustments
Adjust driver section voltages referring the panel data on the panel data label.
Caution
1. First perform Vsus voltage adjustment.
2. Confirmation of Vscn voltage should be performed after confirmation of Vad voltage adjustment.
When Vad = -85V, Voltage of Vscn is 35V ± 4V.
26
9.2. Initialization Pulse Adjust
1. Input a white signal to plasma video input.
2. Set the picture adjustment items as follows.
·Picture menu : Standard
·Color temperature : Normal
·Picture : 25
·Aspect : Full
3. Connect Oscilloscope to TPSC1 (T1) and check for 20 ± 15µ Sec.
4. Connect Oscilloscope to TPSC1 (T2) and adjust VR6602 for 155 ± 10µ Sec.
D, J BoardWhite balance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625i signals
*See the Panel label.
Caution:
Absolutely do not reduce Vsus below Ve not to damage the P.C.B.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
9.4. Adjustment Volume Location
9.5. Test Point Location
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10 Service mode
10.1. CAT (computer Aided Test) mode
TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
To exit the CAT mode, access the ID mode and switch off the main power.
10.1.1. IIC mode
Select the IIC mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button
on the remote control.
Subject and item are mentioned on “IIC mode structure”.
To exit the IIC mode, press the R button on the remote control.
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TH-65PHD8BK / TH-65PHD8EK / TH-65PHD8UK
10.1.2. CD mode
Select the CD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button
on the remote control more than 5 seconds.
Micom software version (IC9702), this version can be upgrade by
1. replace of new version IC
2. Loading the new version software from loader tool, TZSC07036.
Memory data change
To exit the CD mode, press the R button on the remote control.
10.1.3. SD mode
Select the SD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button
on the remote control.
To exit the SD mode, press the R button on the remote control.
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