Panasonic TH-42PM50U Service manual

Specifications

ORDER NO. MTNC050950C1

B19 Canada: B05

Progressive Wide Plasma Display

TH-42PM50U

GP8DU Chassis

Power Source AC 120 V, 50/60 Hz Power Consumption Maximum : 380 W

Stand-by condition : 0.6 W

Plasma Displ ay panel Drive method : AC type 42-inch, 16 : 9 aspect ratio Screen Size Approx. 367/32" (920mm) (W) × 2025/64“ (518 mm) (H) × 419/16“ (1056 mm) (diagonal) Dimensions ( W × H × D ) Approx. 423/64“ (1068 mm) × 2739/64“ (701 mm) × 351/64“ (96.5 mm) Mass (Weight) 71.871 lb. (32.6 kg) Net Sound

Speaker 423/32“ (120 mm) × 223/64“ (60 mm) × 2 pcs 6 W

Audio Output 16 W [ 8 W + 8 W ] (10 % THD) FEATURES 3D Y/C FILTER HDMI Accessories Supplied Remote control: EUR646539

AA Battery × 2 AC Cord Pedestal Cable clamper × 2

Operating Conditions Temperature : 32 °F - 104 °F (0 ° - 40 °C)

Humidity : 20 % - 80 % (non-condensing)

Connection Terminals AV INPUT 1- 2

AV PROG. OUT

COMPONENT VIDEO Y 1.0 Vp-p (including synchronization)

IDEO 1.0 Vp-p (75 W) (Phono Jack Type) S-VIDEO Y : 1.0 Vp-p (75 W), C : 0.286 Vp-p (75 W ) (Mini DIN 4-pin)

UDIO L-R 0.5 Vrms (Phono Jack Type × 2)

IDEO 1.0 Vp-p (75 W) (Phono Jack Type)

UDIO L-R 0.5 Vrms (Phono Jack Type × 2)

TH-42PM50U

INPUT1-2 PB/P

HDMI HDMI type A Connector

UDIO L-R 0.5 Vrms

(Phono Jack Type × 2)

UDIO L-R 0.5 Vrms

(Phono Jack Type × 2)

±0.35Vp-p

Note:

Design and Specifications are subject to change without notice. Weight and Dimensions shown are approximate.

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 Service Hint 6 Plasma panel replacement method

6.1. Remove the Back cover.

6.2. Remove the P-Board.

6.3. Remove the PB-Board

6.4. Remove the D-Board

6.5. Remove the rear terminal cover

6.6. Remove the metal frame

6.7. Remove the DV-Board

6.8. Remove the DG-Board

6.9. Remove the H-Board

6.10. Remove the PA-Board

6.11. Remove the Z-Board

6.12. Remove the SU-Board

6.13. Remove the SD-Board

6.14. Remove the SC-Board

6.15. Remove the SS-Board

6.16. Remove the C1-Board

6.17. Remove the C2-Board

6.18. Remove the K-Board

6.19. Remove the S-Board

6.20. Remove the Speaker L, R

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

6.22. Replace the plasma panel (finished).

7 Location of Lead Wiring

7.1. Lead of Wiring (1)

7.2. Lead of Wiring (2)

7.3. Lead of Wiring (3)

8 Self-check Function

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

15 15

16 17 18

6 7 8 9

9 9 9 9

8.1. How to access

8.2. Power LED Blinking timing chart

8.3. No Power

8.4. No Picture

8.5. Local screen failure

9 Serviceman Mode

9.1. How to enter into Serviceman Mode

9.2. Cancellation

9.3. Contents of adjustment mode

9.4. Option

10 Adjustment Procedure

10.1. Driver Set-up

10.2. Initialization Pulse Adjust

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

10.4. Adjustment Volume Location

10.5. Test Point Location

11 Adjustment

11.1. NTSC panel white balance adjustment

11.2. HD white balance adjustment

11.3. Sub bright adjustment

12 Conductor View

12.1. P-Board

12.2. PA-Board

12.3. PB-Board

12.4. H-Board

12.5. DV-Board

12.6. DG-Board

12.7. Z-Board

12.8. D-Board

12.9. C1-Board

12.10. C2-Board

12.11. SC-Board

12.12. SU-Board

12.13. SD-Board

12.14. SS-Board

12.15. K and S-Board

19 20 21 22 23

24 24 24 25

26 27 28 28 28

29 30 31

33 36 37 38 40 41 43 44 47 48 49 52 53 54 56

13 Block and Sche matic Diagram 57

13.1. Schematic Diagram Notes

13.2. Main Block Diagram

13.3. P-Board Block Diagram

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

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

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

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

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

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

13.10. PA and PB-Board Block Diagram

13.11. PA-Board Schematic Diagram

13.12. PB-Board Schematic Diagram

13.13. H, K, S and Z-Board Block Diagram

13.14. H Board (1 of 3) Schematic Diagram

13.15. H-Board (2 of 3) Schematic Diagram

13.16. H-Board (3 of 3) Schematic Diagram

13.17. Z-Board Schematic Diagram

13.18. K and S-Board Schematic Diagram

13.19. DV-Board Block Diagram

13.20. DV-Board Schematic Diagram

13.21. DG-Board (1 of 2) Block Diagram

13.22. DG-Board (2 of 2) Block Diagram

13.23. DG-Board (1 of 11) Schematic Diagram

13.24. DG-Board (2 of 11) Schematic Diagram

13.25. DG-Board (3 of 11) Schematic Diagram

13.26. DG-Board (4 of 11) Schematic Diagram

13.27. DG-Board (5 of 11) Schematic Diagram

13.28. DG-Board (6 of 11) Schematic Diagram

13.29. DG-Board (7 of 11) Schematic Diagram

13.30. DG-Board (8 of 11) Schematic Diagram

13.31. DG-Board (9 of 11) Schematic Diagram

57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87

13.32. DG-Board (10 of 11) Schematic Diagram

13.33. DG-Board (11 of 11) Schematic Diagram

13.34. D-Board Block Diagram

13.35. D-Board (1 of 6) Schematic Diagram

13.36. D-Board (2 of 6) Schematic Diagram

13.37. D-Board (3 of 6) Schematic Diagram

13.38. D-Board (4 of 6) Schematic Diagram

13.39. D-Board (5 of 6) Schematic Diagram

13.40. D-Board (6 of 6) Schematic Diagram

13.41. C1 and C2-Board Block Diagram

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

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

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

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

13.46. SC-Board Block Diagram

13.47. SC-Board (1 of 2) Schematic Diagram

13.48. SC-Board (2 of 2) Schematic Diagram

13.49. SU-Board Block Diagram

13.50. SU-Board Schematic Diagram

13.51. SD-Board Block Diagram

13.52. SD-Board Schematic Diagram

13.53. SS-Board Block Diagram

13.54. SS-Board Schematic Diagram

14 Parts Locatio n & Mech anica l Replaceme n t Parts List

14.1. Parts Location

14.2. Packing Exploded Views (1)

14.3. Packing Exploded Views (2)

14.4. Packing Exploded Views (3)

14.5. Mechanical Replacement Parts List

15 Repl acement P arts List

15.1. Replacement Parts List Notes

15.2. Electrical Replacement Parts List

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88 89 90 91 92 93 94 95 96 97 98

99 100 101 102 103 104 105 106 107 108 109 110

111

111 112 113 114 115

116

116 117

TH-42PM50U

1 Applicable signals

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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 ACplugintheAC outlet andrepeateach of the above measurements.

6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to the customer.

TH-42PM50U

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).

TH-42PM50U

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-42PM50U

5 Service Hint

Board Name Function Board Name Function

P Power Supply C1 Data Driver (Left) PA DC-DC Converter, Power SOS C2 Data Driver (Right) PB Audio Power SC Scan Drive

H AV Terminal, AV Switch SU Scan out (Upper) DV HDMI Interface

None serviceable. DV-Board should be exchanged for service.

DG Digital Signal Processor S Power Switch

Z Speaker out, Audio AMP

D Format Converter, Plasma AI Processor

SD Scan out (Lower) SS Sustain Drive

K Remote receiver, Keyscan

6 Plasma panel replacement method

TH-42PM50U

6.1. Remove the Back cover.

1. See Service hint (Section 5).

6.2. Remove the P-Board.

Caution:

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

1. Disconnect the couplers (P2, P5, P9, P10, P11, P12, P23 and P25).

2. Remove the screws (×5

) and remove the P-Board.

6.4. Remove the D-Board

1. Remove the PB-Board.

2. Disconnect the couplers (D3, D5, D20 and D25) and

3. Disconnect the flexible cables (D33 and D34).

4. Remove the screws (×4

) and remove the D-Board.

6.3. Remove the PB-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the couplers (PB5 and PB7).

3. Remove the screws (×3 metal frame.

4. Remove the screws (× 4

) and remove the PB-Board

) and remove the PB-Board.

TH-42PM50U

6.5. Remove the rear terminal cover

1. Remove the screws (×4 ,×3 ,×2 , and ×1 ).

2. Remove the rear terminal cover.

6.7. Remove the DV-Board

1. Unlock the cable clampers to free the cable.

2. Remove the screws (×6

3. Remove the DV-Board.

4. Remove the DV-Board unit. (Be careful the coupler (DV15) when remove the DV-Board

unit.)

and ×1 ).

6.6. Remove the metal frame

1. Unlock the cable clampers to free the cable.

2. Disconnect the couplers (D3, D5, H7, P10 and PB7) and relay connector (SP-L and SP-R).

3. Remove the screws (×5

) remove the metal frame.

6.8. Remove the DG-Board

TH-42PM50U

6.10. Remove the PA-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the couplers (DG3 and DG5).

3. Disconnect the flexible cables (DG1, DG2 and DG20).

4. Remove the screws (×2

) and remove the DG-Board.

1. Unlock the cable clampers to free the cable.

2. Disconnect the couplers (PA7 and PA10).

3. Disconnect the flexible cables (PA20 and PA30).

4. Remove the screws (×4

) and remove the PA-Board.

6.9. Remove the H-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the coupler (H7).

3. Disconnect the flexible cables (H1, H2, H30 and H50).

4. Remove the screws (×4

) and remove the H-Board.

6.11. Remove the Z-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the coupler (Z2).

3. Disconnect the flexible cable (Z50).

4. Remove the screws (×2

) and remove the Z-Board.

TH-42PM50U

6.12. Remove the SU-Board

6.13. Remove the SD-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 disconnect a coupler (SU45 or SC45).

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

1. Remove the screws (×2 )

2. Slide the SD-Board to the left to disconnect from a coupler (SC42 - SD42) on the SC-Board and disconnect a coupler (SD46 or SC46).

3. Disconnect the flexible cables (SD1, SD2 and SD3) connected to the SU-Board, and remove the SD-Board.

6.14. Remove the SC-Board

TH-42PM50U

6.16. Remove the C1-Board

1. Disconnect the couplers (SC2, SC20 and SC23).

2. Remove the screws (×6

) and remove the SC-Board.

6.15. Remove the SS-Board

1. Remove the flexible cables holder fastening screws (×6 ).

2. Disconnect the flexible cables (CB1, CB2 and CB3).

3. Disconnect the flexible cable (C11).

4. Disconnect the coupler (C12).

5. Remove the screws (×3

) and remove the C1-Board.

1. Disconnect the couplers (SS11, SS12, SS23 and SS34).

2. Disconnect the flexible cables (SS41, SS42, SS43 and SS44).

3. Remove the screws (×6

) and remove the SS-Board.

6.17. Remove the C2-Board

1. Remove the flexible cables holder fastening screws (×8 ).

2. Disconnect the flexible cables (CB4, CB5, CB6 and CB7).

3. Disconnect the flexible cable (C21).

4. Disconnect the couplers (C22 and C23).

5. Remove the screws (×3

left and remove the C2-Board.

) and slide the C2-Board to the

TH-42PM50U

6.18. Remove the K-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the couplers (H7 and SS34).

3. Remove the screws (×3

) and remove the K-Board.

6.20. Remove the Speaker L, R

6.19. Remove the S-Board

1. Remove the screw (×2 ) and remove the S-Board unit.

2. Unlock the cable clampers to free the cable.

3. Disconnect the couplers (S1 and S2).

4. Remove the screws (×2

) and remove the S-Board.

1. Remove the screw (×8 ) and remove the Speaker L, R.

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

1. Remove the front frame and the plasma panel fastening

screw (×8

2. Remove the front frame and the stand brackets fastening

screw (×6

TH-42PM50U

6.22. Replace the plasma panel (finished).

1. Place the new plasma panel (finished) on the flat surface of

the table (covered by a soft cloth), with the plasma panel surface facing downward.

2. Attach the C1-Board and the C2-Board, connect the flexible

cables (×7) from the Plasma panel to the C1-Board and C2Board, 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.

3. For leaving the plasma panel from the front frame, pull the bottom of the front frame forward, lift, and remove.

TH-42PM50U

7 Location of Lead Wiring

7.1. Lead of Wiring (1)

7.2. Lead of Wiring (2)

TH-42PM50U

7.3. Lead of Wiring (3)

TH-42PM50U

8 Self-check Function

When symptoms like “the power fails sometimes” or “sometimes there is no picture and/or sound” can not be confirmed at the time of servicing, the self-check function can be used to confirm the occurrence and to find the defective circuit.

In case of “power failure”, flashing of the “POWER” indication (red) at the front of the unit can be used to narrow down the +B line.

8.1. How to access

8.1.1. Access

Produce TV reception screen and, while pressing [VOLUME-] button on the main unit, press [SLEEP] button on the remote controller unit simultaneously.

8.1.2. Exit

Remove the AC cord.

8.1.3. Screen display

Display Ref.No. Description Board SND IC2608 BBE Viva H-Board AVSWV IC2602 Video SW H-Board AVSWA IC2605 Audio SW H-Board ADV IC4018 10Bits A/D DG-Board GC4P IC4026 GC4PRO DG-Board HDMI IC5003 HDMI I/F Receiver DV-Board MEM IC4008 EEPROM DG-Board PANEL IC9007 SUB MICON D-Board

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8.2. Power LED Blinking timing chart

1. Subject Information of LED Flashing timing chart.

2. Contents When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the

defective block can be identified by the number of blinkes of the Power LED on the front panel of the unit.

3. Remarks Above Fan function is operated during the fans are installed.

8.3. No Power

First check point

There are following 2 states of No Power indication by power LED.

1. No lit

2. Red is lit then turns red blinking a few seconds later. (See 8.2.)

1. No lit

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8.4. No Picture

8.5. Local screen failure

Plasma display may have local area failure on the screen. Fig - 1 is the possible defect P.C.B. for each local area.

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Fig - 1

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9 Serviceman Mode

9.1. How to enter into Serviceman Mode

While pressing [VOLUME- ] button of the main unit, press [RECALL] button of the remote control three times in a row (within 2 seconds).

9.1.1. Adjustment method.....Use the remote control.

“ ” button...Main items Selection in forward direction

” button...Main items Selection in reverse direction

“

” button...Sub items Selection in forward direction

“

” button...Sub items Selection in reverse direction

“ “VOL” button...Value of sub items change in forward direction (+), in reverse direction (-) “SLEEP”...EEP COPY: EXT ® INT “RETURN”...EEP COPY: INT ® EXT

9.2. Cancellation

Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

9.3. Contents of adjustment mode

· Value is shown as a hexadecimal number.

· ·

· Preset value differs depending on models.

· ·

· After entering the adjustment mode, take note of the value in each item before starting adjustment.

· ·

Main item Sub item Sample Data

PCT-ADJ PICTURE 11C

COLOR 33 TINT 05 S-BRT 800

WB-ADJ R-CUT 80

G-CUT 80 B-CUT 80 R-DRV DC G-DRV FC B-DRV E9 ALL-CUT 80 ALL-DRV FC SUB-BRT 800

OPTION OPT00 1

EEP COPY ALL

RM-SET CODE A

9.4. Option

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10 Adjustment Procedure

10.1. Driver Set-up

10.1.1. Item / Preparation

1. Input an APL 100 % white signal.

2. Set the picture controls: Picture mode: Normal White balance: Cool Aspect: 16:9

10.1.2. 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) Ve ± 2V VR6074 (SS) * Vset TPVSET

(SC) Vad TPVAD (SC) -90V ± 1V VR6477

Vscn TPVSCN

(SC) Vda TPVDA (SS) 67V ± 1V R665 (P) PFC C446 (+)(-) 395V± 0.5V R443 (P) Vlow C557 (+)(-) 73V± 0.1V R661 (P) load

Vsus TPVsus 174V± 1V R671 (P) load

Vsus ± 1V R628 (P) *

232V ± 7V Fixed

(SC)

Vad+120V ±3VFixed

current :

0.4A

current :

0.6A

*See the Panel label.

10.2. 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) --- 15 ± 10µ Sec T2 TPSS1 (SS) VR6557 (SC) 184 + 5µ / - 10µ Sec

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

10.3.1. Caution

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

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

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

P Board Vsus TPVSUS (SS) Vsus ± 1V R628 (P) *

Vda TPVDA (SS) 67V ± 1V R665 (P) PFC C446 (+) (-) (P) 395V ± 0.5V R443 (P) Vlow C557 (+) (-) (P) 73V ± 0.1V R661 (P) load current : 0.4A

Vsus TPVSUS (SS) 174V ± 0.5V R671 (P) load current : 0.6A SC Board Vad TPVAD (SC) -90V ± 1V VR6477 (SC) SS Board Ve TPVE (SS) Ve ± 2V VR6074 (SS) * D, DG Board White blance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625i signals

*See the Panel label.

10.4. Adjustment Volume Location

10.5. Test Point Location

11 Adjustment

11.1. NTSC panel white balance adjustment

Instrument Name Connection Remarks

· W/B pattern

· ·

· Color analyzer (Minolta CA-100 or equivalent)

· ·

Procedure Remarks

· Ensure aging is adequate.

· ·

· Make sure the front panel to be used on the final set is fitted.

· ·

· Make sure a color signal is not being shown before adjustment.

· ·

· Put the color analyzer where there is little color variation.

· ·

1. Output a white balance pattern.

2. Check that the color temperature is "Cool".

3. Set to factory mode, WB-ADJ.

4. Set "G-CUT", "B-CUT" and "R-CUT" as 80h.

5. Attach the sensor of color analyzer to the center of highlight window.

6. Fix G drive at E0h and adjust "B-DRV" and "R-DRV" so x, y value of color analyzer become the "Color temperature High" in table 1.

7. Increase RGB together so the maximum drive value in RGB becomes FCh. That is, set "ALL DRIVE" to FCh.

8. Confirm the highlight to the values shown in table 1 "Color temperature High". If not, readjust.

Video input Panel surface

Pic. mode : Vivid ASPECT : 16:9

· Highlight section

· ·

Signal amplitude 75%

TH-42PM50U

9. Set color temperature to "Normal".

10. Set "G-CUT", "B-CUT" and "R-CUT" as 80h.

11. Fix G drive at E0h and adjust "B-DRV" and "R-DRV" so x, y value of color analyzer become the "Color temperature Mid" in table 1.

12. Increase RGB together so the maximum drive value in RGB becomes FCh. That is, set "ALL DRIVE" to FCh.

13. Confirm the highlight to the values shown in table 1 "Color temperature Mid". If not, readjust.

14. Set color temperature to "Warm".

15. Set "G-CUT", "B-CUT" and "R-CUT" as 80h.

16. Fix G drive at E0h and adjust "B-DRV" and "R-DRV" so x, y value of color analyzer become the "Color temperature Low" in table 1.

17. Increase RGB together so the maximum drive value in RGB becomes FCh. That is, set "ALL DRIVE" to FCh.

18. Confirm the highlight to the values shown in table 1 "Color temperature Low". If not, readjust.

19. Set color temperature to "Cool"

TH-42PM50U

11.2. HD white balance adjustment

Instrument Name Connection Remarks

· W/B pattern

· ·

· Color analyzer (Minolta CA-100 or equivalent)

· ·

Procedure Remarks

· Ensure aging is adequate

· ·

· Make sure the front panel to be used on the final set is fitted.

· ·

· Make sure a color signal is not being shown before adjustment.

· ·

· Put the color analyzer where there is little color variation.

· ·

1. Output a white balance pattern.

2. Check that the color temperature is "Cool".

3. Set to Service mode, WB-ADJ.

4. Set "G-CUT", "B-CUT" and "R-CUT" as 80h.

5. Attach the sensor of color analyzer to the center of highlight window.

6. Fix G drive at E0h and adjust "B-DRV" and "R-DRV" so x, y value of color analyzer become the "Color temperature High" in table 1.

7. Increase RGB together so the maximum drive value in RGB becomes FCh. That is, set "ALL DRIVE" to FCh.

8. Confirm the highlight to the values shown in table 1 "Color temperature High". If not, readjust.

9. Set color temperature to "Normal".

10. Set "G-CUT", "B-CUT" and "R-CUT" as 80h.

11. Fix G drive at E0h and adjust "B-DRV" and "R-DRV" so x, y value of color analyzer become the "Color temperature Mid" in table 1.

12. Increase RGB together so the maximum drive value in RGB becomes FCh. That is, set "ALL DRIVE" to FCh.

13. Confirm the highlight to the values shown in table 1 "Color temperature Mid". If not, readjust.

Component input Panel surface

User setting : Normal

Image menu : Vivid ASPECT : 16:9

· Highlight section

· ·

Signal amplitude 75%

· The Color balance COOL differs from

· ·

Japanese model values.

14. Set color temperature to "Warm".

15. Set "G-CUT", "B-CUT" and "R-CUT" as 80h.

16. Fix G drive at E0h and adjust "B-DRV" and "R-DRV" so x, y value of color analyzer become the "Color temperature Low" in table 1.

17. Increase RGB together so the maximum drive value in RGB becomes FCh. That is, set "ALL DRIVE" to FCh.

18. Confirm the highlight to the values shown in table 1 "Color temperature Low". If not, readjust.

19. Set color temperature to "Cool"

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