Panasonic GPH7D, TH-42PHW7EX, TH-42PHD7EK, TH-42PHD7BK, TH-42PHD7UY Service Manual

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ORDER NO. ITD0410050C0

D10 Canada: B07

High Definition Plasma Display

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

GPH7D Chassis

Specifications

Power Source: AC120V 50/60Hz (UY version)

AC220-240V 50/60Hz (Except UY version model)

Power Consumption: 375 W (UYversion), 315 W (ExceptUY

version model) Save off 0.8W,Saveon0.5W(stand

condition) (UY version) Save off 1.0 W, Save on 0.7 W (stand-by

condition) (Except UY version model)

0.1 W (Poweroff condition) (UY version model)

0.3 W (Power off condition) (Except UY version model)

Plasma Display panel: Drive methodAC type

16:9 aspec

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 frequency15 Vertical scanning frequency 48

Connection terminals:

atio

10kH

20H

UY version)

Videoin 1.0 Vp-p (75-ohm)

-VIDEOIN

(MINI DIN 4PIN) AUDIOIN

(RCA PIN JACK × 2)

OMPONENT/RGB(UY version)

/G 1.0 Vp-p/composite(75-ohm)

B 0.7 Vp-p (75-ohm)

R 0.7 Vp-p (75-ohm)

D 1.0 - 5.0 Vp-p (highimpedance) VD 1.0 - 5.0 Vp-p (highimpedance) AUDIOIN (RCA PIN JACK×2)

HIGH

ENSITY

D-SUB15PIN)

AUDIOIN(M3JACK

ERIA

XTERNALCONTROL TERMINAL (D-SUB9PIN)

PEAKERS(External

speakers) (6WWWW)

imension

eight(Mass

W×H×D):1,020 mm × 610 mm 89mm

Y: 1 Vp-p (75-ohm),C:0.286 Vp(75-ohm)

0.5 Vrms (high impedance)

0.7 Vp-p/non-composite(75-ohm)

0.5 Vrms (high impedance)

R,G,B/0.7 Vp-p (75-ohm)

HD, VD/1.0 - 5.0 Vp-p(high impedance)

0.5Vrms (high impedance)

RS-232C COMPATIBL

16W [8W+8W] (10%THD)

pprox. 29.5 kg net (mainunitonly)

approx. 33.7 kg net (with speakers)

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

CONTENTS

Page Page

1 Applicable signals 4 2 Safety Precautions

2.1. General Guidelines

3 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices 4 About lead free solder (PbF) 5 PCB Structure sheet of GPH7D chassis 6 Service Hint 7 P.C.Board and Plasma panel replacement method

7.1. Remove the Back cover.

7.2. Remove the P-Board.

7.3. Remove the Z-Board.

7.4. Remove the D-Board.

7.5. Remove the PF-Board.

7.6. Remove the SU-Board.

7.7. Remove the SD-Board.

7.8. Remove the SC-Board.

7.9. Remove the SS3-Board.

7.10. Remove the SS2-Board.

7.11. Remove the SS-Board.

7.12. Remove the H3-Board.

7.13. Remove the Fan (L) and Fan (R).

7.14. Remove the C1-Board.

7.15. Remove the C2-Board.

7.16. Remove the Slot box (J-Board, DR-Board, HX-Board).

7.17. Remove the J-Board, the DR-Board and the HX-Board.

7.18. Remove the stand brackets.

7.19. Remove the C3-Board.

7.20. Remove the C4-Board.

7.21. Remove the S1-Board.

7.22. Remove the Plasma panel section from the Front frame (glass).

7.23. Replace the plasma panel (finished).

7.24. Connection of flexible cable

8 Location of Lead Wiring 9 Adjustment Procedure

9.1. Driver Set-up

9.2. Initialization Pulse Adjust

9.3. P.C.B. (Printed Circuit Board) exchange

9.4. Adjustment Volume Location

9.5. Test Point Location

10 Servi ce mode

10.1. CAT (computer Aided Test) mode

10.2. IIC mode structure (following items value is sample data.)

11 Alignment

6 7 8 9

10 10 10 10 11 11 11 12 12 12 13 13 13 13 14 14 14 15 15 15 15

16 16 17

18 19

19 20 21 21 21

11.1. Pedestal setting (C)

11.2. Pedestal setting (B)

11.3. NTSC panel white balance

11.4. PAL/SECAM panel white balance

11.5. PC/RGB panel white balance

11.6. HD/ 525i /525p /625I /625P panel white balance

12 Trouble shooting guide

12.1. Self Check

12.2. No Power

12.3. No Picture

12.4. Local screen failure

13 Option Setting

13.1. How to access and setting

13.2. Contents of Open Menu

14 Circuit Board Layout

14.1. PF-Board

14.2. P-Board

14.3. HA-Board

14.4. HB-Board

14.5. HX-Board

14.6. J-Board

14.7. D-Board

14.8. C1-Board

14.9. C2-Board

14.10. C3-Board

14.11. C4-Board

14.12. SC-Board

14.13. SU-Board

14.14. SD-Board

14.15. SS-Board

14.16. Z-Board

14.17. H3, S1 and V1-Board

15 Sche matic Diagr ams

15.1. Schematic Diagram Notes

15.2. Main Block Diagram

15.3. Power Block Diagram

15.4. PF-Board Schematic Diagram

15.5. P-Board (1 of 6) Schematic Diagram

15.6. P-Board (2 of 6) Schematic Diagram

15.7. P-Board (3 of 6) Schematic Diagram

15.8. P-Board (4 of 6) Schematic Diagram

15.9. P-Board (5 of 6) Schematic Diagram

15.10. P-Board (6 of 6) Schematic Diagram

15.11. HA-Board Block Diagram and Schematic Diagram

25 26 27 28 30 32

34 35 36 36

37 38

39 41 44 45 46 47 49 51 52 53 54 55 58 59 60 62 63

65 66 67 68 69 70 71 72 73 74 75

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

15.12. HB-Board Block Diagram 76

15.13. HB-Board (1 of 2) Schematic Diagram

15.14. HB-Board (2 of 2) Schematic Diagram

15.15. HX-Board Block Diagram and Schematic Diagram

15.16. J-Board Block Diagram

15.17. J-Board (1 of 4) Schematic Diagram

15.18. J-Board (2 of 4) Schematic Diagram

15.19. J-Board (3 of 4) Schematic Diagram

15.20. J-Board (4 of 4) Schematic Diagram

15.21. D-Board (1 of 2) Block Diagram

15.22. D-Board (2 of 2) Block Diagram

15.23. D-Board (1 of 12) Schematic Diagram

15.24. D-Board (2 of 12) Schematic Diagram

15.25. D-Board (3 of 12) Schematic Diagram

15.26. D-Board (4 of 12) Schematic Diagram

15.27. D-Board (5 of 12) Schematic Diagram

15.28. D-Board (6 of 12) Schematic Diagram

15.29. D-Board (7 of 12) Schematic Diagram

15.30. D-Board (8 of 12) Schematic Diagram

15.31. D-Board (9 of 12) Schematic Diagram

15.32. D-Board (10 of 12) Schematic Diagram

15.33. D-Board (11 of 12) Schematic Diagram

15.34. D-Board (12 of 12) Schematic Diagram

15.35. C1, C2, C3, C4, and V1-Board Block Diagram

15.36. C1-Board (1 of 2) Schematic Diagram

15.37. C1-Board (2 of 2) Schematic Diagram

15.38. C2-Board (1 of 2) Schematic Diagram

15.39. C2-Board (2 of 2) Schematic Diagram

77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98

99 100 101 102 103

15.40. C3-Board (1 of 2) Schematic Diagram

15.41. C3-Board (2 of 2) and V1-Board Schematic Diagram

15.42. C4-Board (1 of 2) V1-Board Schematic Diagram

15.43. C4-Board (2 of 2) Schematic Diagram

15.44. SC-Board Block Diagram

15.45. SC-Board (1 of 3) Schematic Diagram

15.46. SC-Board (2 of 3) Schematic Diagram

15.47. SC-Board (3 of 3) Schematic Diagram

15.48. SU-Board Block Diagram

15.49. SU-Board (1 of 2) Schematic Diagram

15.50. SU-Board (2 of 2) Schematic Diagram

15.51. SD-Board Block Diagram

15.52. SD-Board (1 of 2) Schematic Diagram

15.53. SD-Board (2 of 2) Schematic Diagram

15.54. SS, SS2, SS3, and S1-Board Block Diagram

15.55. SS, SS2, SS3, and S1-Board Schematic Diagram

15.56. Z-Board and H3-Board Block Diagram

15.57. Z-Board (1 of 2) and H3-Board Schematic Diagram

15.58. Z-Board (2 of 2) Schematic Diagram

16 Parts Locat ion 17 Packing Exploded Views

17.1. Packing Exploded Views (1)

17.2. Packing Exploded Views (2)

17.3. Packing Exploded Views (3)

18 Mech ani ca l Replacement Parts List 19 Repl acement Parts List

19.1. Relpacement Parts List Notes

19.2. Electrical Replacement Parts List

104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122

123 124

124 125 126

127 129

129 130

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

1 Applicable signals

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

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 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 ACplug inthe ACoutlet 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.

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 asthe 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).

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

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.

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

5 PCB Structure sheet of GPH7D chassis

Board Name Function Remarks

D Digital Signal Processor 1

J Slot Interface & SYNC processor 1

Z Audio 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

P Power 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

6 Service Hint

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

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)

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

7 P.C.Board and Plasma panel replacement method

n To 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 theZ-BoardBracket.

3. Remove the screws (×4

) and remove the Z-Board with

) 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 the bracket.

3. Remove the screws (×3

) and remove the D-Board with

) and remove the D-Board.

7.5. Remove the PF-Board.

1. Remove the couplers (PF9, PF10) and PF-Board shield cover.

2. Remove the screws (×4 with the Bracket.

), and remove the PF-Board

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

3. Remove the flexible cables (SU1, SU2, SU3, SU4) connected to the SU-Board, and remove the SU-Board.

3. Remove the coupler (PF1) and remove the screws (×3 ).

4. Remove the screw (×2

AC inlet.

5. Remove the PF-Board.

) on the AC inlet and remove the

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).

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).

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.

7.10. 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.

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.

7.11. 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.

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

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).

)

7.12. Remove the H3-Board.

1. Remove the screws(×3), removethe H3-Board andremove a coupler (H37).

7.13. Remove the Fan (L) and Fan

(R).

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.

1. Remove the screws (×3 each) remove the fan (L, R) and disconnect the relay coupler.

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 the C2-Board.

), a coupler (C32) and remove

)

2. Remove the hexagon head screws (×4 ), the pan head screws (×4

) and remove the DR-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 DRBoard and the HX-Board.

<J-Board>

1. Remove the screws (×7), disconnect the coupler (J14 HX1) and remove the J-Board.

2. Remove the screws(×6) andremove the Slot box cover.

<DR-Board>

1. Remove the screws (×4) and remove (pull out DR-Board with connector cover.

)the

<HX-Board>

1. Remove a screw ( (×4

) and remove the HX-Board.

) and the hexagon head screws

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

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.

7.18. 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).

7.21. Remove the S1-Board.

1. Remove a screw, remove the S1-Board and remove the coupler (S34).

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.

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 (C44on the C3-Board) and releasethe

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 C4Board, 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.

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

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

8 Location of Lead Wiring

9 Adjustment Procedure

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) Ve TPVE (SS) 160V ± 1V VR6145 (SS) Vda TPVDA (SS) 67V ± 1V R665 (P) Vad TPVAD (SC) -105V ± 1V VR6477

Vscn TPVSCN

(SC) Vset TPVSET

(SC) PFC C448 (+) (-) 395V ± 0.5V R443 (P) Vdat C560 (+) (-) 69V ± 0.1V R661 (P) load current:

Vsus TPVSUS 175V ± 1V R608 (P) load current:

185V ± 2V R641 (P)

(SC)

Vad*+130V ±4V---

240V ± 1V VR6541

(SC)

0.4A

1.9A

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

*See the Panel label.

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

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

9.3. P.C.B. (Printed Circuit Board) exchange

9.3.1. Caution

1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.

9.3.2. Quick adjustment after P.C.B. exchange

P.C.B. Name Test Point Voltage Volume Remarks

P Board Vsus TPVSUS (SS) 185V ± 2V R641 (P)

Vda TPVDA (SS) 67V ± 1V R665 (P)

SC Board Vad TPVAD (SC) -105V ± 1V VR6477 (SC)

Vset TPVSET (SC) 240V ± 1V VR6491 (SC) Vscn TPVSCN (SC) Vad + 130 ± 4V ---

SS Board Ve TPVE (SS) 160V ± 1V VR6145 (SS) D, J Board White blance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625i signals

*See the Panel label.

9.4. Adjustment Volume Location

9.5. Test Point Location

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

10 Service mode

10.1. CAT (computer Aided Test) mode

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 then press the Action button on the remote control.

Subject and item are mentioned on page 14.

To exit the IIC mode, press the R button on the remote control.

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

10.1.2. CD mode

Select the CD mode by Up/Down button on the remote control at the front page of CAT mode then press the Mute button on the remote control more than 5 sec.

Micom software version (IC9354), 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 then press the Action button on the remote control.

To exit the SD mode, press the R button on the remote control.

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

10.2. IIC mode structure (following items value is sample data.)

11 Alignment

11.1. Pedestal setting (C)

INPUT Alignment menu ProcedureEquipment Setting

RGB(PC)

Gray Scale Pattern

Black 2 %

Black 0 %

Picture: PANEL W/B

White balance: G cut off

Aspect:

COMPONENT /RGB-IN:

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

** Adjust at the dark room.

Normal R cut off 1) Set R,G and B cut off to "

Cool B cut off

Chroma Control:

16:9

RGB Sub Adjust:

RGB

Chroma Control:

RGB Sub Adjust:

Chroma Control:

RGB Sub Adjust:

Gun off

G Sub Bright 1

Gun off

B Sub Bright 1

Gun off

R Sub Bright 1

2) Set Gun off to "

3) Adjust G Sub bright to start some of green pixels emission at black 2% area and no emission at black 0% area.

4) Set Gun off to "

5) Adjust B Sub bright to start some of blue pixels emission at black 2% area and no emission at black 0% area.

6) Set Gun off to "

7) Adjust R Sub bright to start some of red pixels emission at black 2% area and no emission at black 0% area.

5". (Only green pixels can emit.)

3". (Only blue pixels can emit.)

6". (Only red pixels can emit.)

80 ".

Component

(525i, 525p, 625i,

720i or 1080i)

Gray Scale Pattern

Black 2 %

Black 0 %

Picture: 1) Change input to Component signal.

Normal PANEL W/B

White balance: R,G,B cut off 2) Repeat procedure 1) to 7) of RGB input signal.

Cool PANEL W/B

Aspect: R,G,B Drive

16:9

Note:

OSD is the difference between UY model and Except UY model. Picture: Normal (Except UY)/Standard (UY model) White balance (Except UY)/Color Temp (UY model)

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

11.2. Pedestal setting (B)

INPUT Alignment menu ProcedureEquipment Setting

RGB(PC)

Gray Scale Pattern

Black 2 %

Black 0 %

Picture: PANEL W/B

White balance: G cut off

Aspect:

COMPONENT /RGB-IN:

** Adjust at the dark room.

Normal R cut off 1) Press the SWAP button, change input to signal path.

2) Set R,G and B cut off to "

Cool B cut off

Chroma Control:

16:9

RGB Sub Adjust:

RGB

Chroma Control:

RGB Sub Adjust:

Chroma Control:

RGB Sub Adjust:

Gun off

G Sub Bright 2

Gun off

B Sub Bright 2

Gun off

R Sub Bright 2

3) Set Gun off to "

4) Adjust G Sub bright to start some of green pixels emission at black 2% area and no emission at black 0% area.

5) Set Gun off to "

6) Adjust B Sub bright to start some of blue pixels emission at black 2% area and no emission at black 0% area.

7) Set Gun off to "

8) Adjust R Sub bright to start some of red pixels emission at black 2% area and no emission at black 0% area.

5". (Only green pixels can emit.)

3". (Only blue pixels can emit.)

6". (Only red pixels can emit.)

Component

(525i, 525p, 625i,

720i or 1080i)

Gray Scale Pattern

Black 2 %

Black 0 %

Picture: 1) Change input to Component signal.

Normal PANEL W/B

White balance: R,G,B cut off 2) Repeat procedure 1) to 7) of RGB input signal.

Cool PANEL W/B

Aspect: R,G,B Drive

16:9

Note:

OSD is the difference between UY model and Except UY model. Picture: Normal (Except UY)/Standard (UY model) White balance (Except UY)/Color Temp (UY model)

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

11.3. NTSC panel white balance

INPUT Alignment menu ProcedureEquipment Setting

1 NTSC Color Picture: 1) Find the nearest area to brightness of 10 cd/m2 as Low

Gray Scale Analyzer Normal Sub Adjust light by color sensor. Pattern White balance: Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m

Cool exactly.

Aspect: PANEL W/B

16:9 G cut off 3) Set G cut off to " 80 ".

PANEL W/B

B cut off 4) Adjust B and R cut off to set color temperature as

R cut off shown Fig.-01.

High light 75% Sub Adjust

Low light 15% Sub Bright 5) If Sub Bright is changed re-adjust it to set Low light

to 10 cd/m

6)Find 75% of white area by color sensor.

PANEL W/B

G Drive 7) Set G Drive to " D8 ".

PANEL W/B

B Drive 8) Adjust B and R Drive to set color temperature

R Drive as shown Fig.-01.

9) Repeat item 4) to 7) to set both Low light and high light.

PANEL W/B

R,G,B Drive 10) Increase same steps of R, G and B Drive to set R,G,B Drive largest level of 3 color drive to "FC".

PANEL W/B

R,G,B cut off 11) Re-adjust Low light level again.

Color Temp. x y

Cool(Hi) 0.276 0.276

Normal(Mid) 0.288 0.296

Warm(Low) 0.313 0.329

Fig. -01

2 Picture: 1) Change white balance to "Normal".

Normal PANEL W/B

White balance: R,G,B cut off 2) Repeat procedure 3) to 11) of Cool mode.

Normal PANEL W/B

Aspect: R,G,B Drive

16:9

3 Picture: 1) Change white balance to "Warm".

Normal PANEL W/B

White balance: R,G,B cut off 2) Repeat procedure 3) to 11) of Cool mode.

Warm PANEL W/B

Aspect: R,G,B Drive

16:9

4 Picture: Picture Menu 1) Change color templature to "Cool".

Normal Sub Adjust

White balance: Sub Bright 2)Re-set Sub bright to "30"

Cool

Aspect:

16:9

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

11.4. PAL/SECAM panel white balance

INPUT Alignment menu ProcedureEquipment Setting

1 PAL Color Picture: 1) Find the nearest area to brightness of 10 cd/m2 as Low

Gray Scale Analyzer Normal Sub Adjust light by color sensor. Pattern White balance: Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m

Cool exactly.

Aspect: PANEL W/B

16:9 G cut off 3) Set G cut off to " 80 ".

PANEL W/B

B cut off 4) Adjust B and R cut off to set color temperature as

R cut off shown Fig.-02.

High light 75% Sub Adjust

Low light 15% Sub Bright 5) If Sub Bright is changed re-adjust it to set Low light

to 10 cd/m

6)Find 75% of white area by color sensor.

PANEL W/B

G Drive 7) Set G Drive to " D8 ".

PANEL W/B

B Drive 8) Adjust B and R Drive to set color temperature

R Drive as shown Fig.-02.

9) Repeat procedure 4) to 7) to set both Low light and high light.

PANEL W/B

R,G,B Drive 10) Increase same steps of R, G and B Drive to set R,G,B Drive largest level of 3 color drive to "FC".

PANEL W/B

R,G,B cut off 11) Re-adjust Low light level again.

Color Temp. x y

Cool(Hi) 0.276 0.276

Normal(Mid) 0.288 0.296

Warm(Low) 0.313 0.329

Fig. -02

2 Picture: 1) Change white balance to "Normal".

Normal PANEL W/B

White balance: R,G,B cut off 2) Repeat procedure 3) to 11) of Cool mode.

Normal PANEL W/B

Aspect: R,G,B Drive

16:9

3 Picture: 1) Change white balance to "Warm".

Normal PANEL W/B

White balance: R,G,B cut off 2) Repeat procedure 3) to 11) of Cool mode.

Warm PANEL W/B

Aspect: R,G,B Drive

16:9

4 Picture: Picture Menu 1) Change color templature to "Cool".

Normal Sub Adjust

White balance: Sub Bright 2)Re-set Sub bright to "30"

Cool

Aspect:

16:9

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

Alignment menu ProcedureEquipment Setting

5 Picture: 1) Write down each color temaparature of R,G,B drive and

Normal Cut off data as follows.

Aspect:

16:9

White

White balance:

Cool

Normal

Warm

Balance Cool Normal Warm R Drive G Drive B Drive R Cut off G Cut off B Cut off

SECAM signal 2) Input SECAM signal.

3) Copy PAL R,G,B drive and cut off data of each white balance mode to SECAM position.

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

11.5. PC/RGB panel white balance

INPUT Alignment menu ProcedureEquipment Setting

1 PC Color Picture: 1) Find the nearest area to brightness of 10 cd/m2 as Low

Gray Scale Analyzer Normal Sub Adjust light by color sensor. Pattern White balance: Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m

Cool exactly.

Aspect: PANEL W/B

16:9 G cut off 3) Set G cut off to " 80 ".

PANEL W/B

B cut off 4) Adjust B and R cut off to set color temperature as

R cut off shown Fig.-03.

High light 75% Sub Adjust

Low light 15% Sub Bright 5) If Sub Bright is changed re-adjust it to set Low light

to 10 cd/m

6)Find 75% of white area by color sensor.

PANEL W/B

G Drive 7) Set G Drive to " D8 ".

PANEL W/B

B Drive 8) Adjust B and R Drive to set color temperature

R Drive as shown Fig.-03.

9) Repeat item 4) to 7) to set both Low light and high light.

PANEL W/B

R,G,B Drive 10) Increase same steps of R, G and B Drive to set R,G,B Drive largest level of 3 color drive to "FC".

PANEL W/B

R,G,B cut off 11) Re-adjust Low light level again.

Color Temp. x y

Cool(Hi) 0.276 0.276

Normal(Mid) 0.288 0.296

Warm(Low) 0.313 0.329

Fig. -03

2 Picture: 1) Change white balance to "Normal".

Normal PANEL W/B

White balance: R,G,B cut off 2) Repeat procedure 3) to 11) of Cool mode.

Normal PANEL W/B

Aspect: R,G,B Drive

16:9

3 Picture: 1) Change white balance to "Warm".

Normal PANEL W/B

White balance: R,G,B cut off 2) Repeat procedure 3) to 11) of Cool mode.

Warm PANEL W/B

Aspect: R,G,B Drive

16:9

4 Picture: Picture Menu 1) Change color templature to "Cool".

Normal Sub Adjust

White balance: Sub Bright 2)Re-set Sub bright to "30"

Cool

Aspect:

16:9

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