Panasonic th 37pw7bx, th 42pwd7uy, th 42pwd7bs, th 37pwd7ek, th 42pw7ex schematic

...

290W

(42i

250W

(42i

939mm(

920mm(

480(

480d

40°

ORDER NO. ITD0408033C0

D10 Canada: B07

Progressive Wide Plasma Display

TH-37PW7BX

TH-37PW7EX TH-37PWD7BK TH-37PWD7EK TH-37PWD7UY TH-42PW7EX TH-42PW7BX TH-42PWD7BK TH-42PWD7BS

Specifications

Power Source (UY Version) Power Source (Except UY) Power Consumption (UY Version)

Maximum Stand-by condition Power off condition

Power Consumption (Except UY)

Normal use Stand-by condition Power off condition

Plasma Display panel

Contrast Ratio

Screen size

(No. of pixels)

Operating condition

Temperatuer Humidity

Applicable signals

Colour System

TH-42PWD7EK TH-42PWD7ES TH-42PWD7UY

GP7D Chassis

20 V AC, 50/60 Hz 20 - 240 V AC, 50/60Hz

25 W (37 inch)

ave OFF 0.8 W,SaveON0.5

.1 W

85 W (37 inch)

ave off 1.0 W, Saveon0.7

.3 W

rive method: ACtype16:9aspec 000:1 18 mm (W) × 461mm(H)

(37 inch)

08,960 (852 (W)

2 °F - 104 °F (0°C 0%-80%

TSC, PAL, PAL60,SECAM,ModifiedNTSC

H))[2,556

atio

diagonal)

nch)

W) × 518 mm (H) × 1,056mm(diagonal)

(42 inch)

ots]

50i5

60p5

110k

120H

Y:1

)

2)0

)

R,G,B/0

1.0-

ComponentY:

PB/

CB:

PR/

CR:

610m

TH-37PW7BX

Scanning format 525(480) / 60i 60p,625(575)

25p 30p 24sF .... SMPTE274M, 1250 (1080) / 50i

PC signals VGAdisplay

VGA

SVGA, XGA, SXGA, UXGA.....(compressed)

Horizontal scanning frequency15 Vertical scanning frequency48

Connection terminals

AV (TH-37/42PWDUY) VIDEO IN / OUT (BNC)

S VIDEO IN (MINI DIN4PIN) AUDIO IN (RCA PIN JACK×2)

COMPONENT / RGB (TH37/42PWDUY)

PC (HIGH-DENSITY D-SUB15PIN

SERIAL EXTERNAL CONTROLTERMINAL(D-SU SPEAKERS (6 W) 16 W [8 W + 8 W] (10

Accessories Supplied

Remote Control Transmitter EUR646529 Batteries 2 × AA Size Fixing bands (TMME203 or TMME187) Ferrite core J0KF00000018 × 1, J0KG00000054

Dimensions ( W × H × D ) 920mm × 550 mm × 89mm(37inch) Mass (Weight) (UY Version)

main unit only approx. 54.0 lbs (37 inch) with speakers approx. 63.3 lbs (37 inch)

Mass (Weight) (Except UY)

main unit only approx. 24.0 kg net (37inch) with speakers approx. 28.2 kg (37 inch)

Y/G(BNC)

(BNC), PR / R (BNC

AUDIO IN (RCA PIN JACK

AUDIO IN (M3 JACK)

HD)

0p,750(720)

.0 Vp-p(75-oh

Vp-p(75-ohm), C: 0.286 Vp-p (75-ohm) .5 Vrms(highimpedance) .0 Vp-p

.7 Vp-p .7 Vp-p(75ohm) .5 Vrms(highimpedance)

D, VD

.0 Vp-p(75-oh

0.35 Vp-p(75-ohm)

0.35 Vp-p(75-ohm) .5 Vrms(highimpedance)

PIN)RS-232CCOMPATIBLE

,020mm

pprox.63.9lbs(42 inch) pprox.73.2lbs(42 inch)

pprox.28.5kgnet (42 inch) pprox.32.7kg(42 inch)

0p, 1125 (1080) / 60i50i24p

r high impedance)

omposite (75-ohm)

on-composite (75-ohm)

.7 Vp-p (75-ohm)

.0 Vp-p (high impedance)

include sync)

m × 89 mm (42 inch)

Notes:

· Design and specifications are subject to change without notice.Mass and dimensions shown are approximate.

CONTENTS

Page Page

1 Applicable signals 5 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 GP7D chassis

6 Service Hint 7 P.C.Board and Plasma panel replacement

7.1. Removal of the back cover

9 10 11

TH-37PW7BX

7.2. Removal of the Slot block 11

7.3. Removal of the J-Board

7.4. Removal of the HX-Board

7.5. Removal of the P-Board

7.6. Removal of the Z-Board

7.7. Removal of the D-Board

7.8. Removal of the PF-Board

7.9. Removal of the H3-Board

7.10. Removal of the SU-Board

7.11. Removal of the SD-Board

7.12. Removal of the SC-Board

7.13. Removal of the SS-Board

7.14. Removal of the C1-Board

7.15. Removal of the C2-Board

7.16. Removal of the Front frame (glass)

7.17. Removal of stand brackets

7.18. Replacement of the plasma panel

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

11.1. PC/RGB panel white balance

11.2. 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 14 Circuit Board Layout

14.1. PF-Board (37 inch)

14.2. PF-Board (42 inch)

14.3. P-Board

14.4. HA-Board

14.5. HB-Board

14.6. HX-Board (37 inch)

14.7. HX-Board (42 inch)

14.8. J-Board (37 inch)

14.9. J-Board (42 inch)

14.10. D-Board

14.11. C1-Board (37 inch)

14.12. C1-Board (42 inch)

14.13. C2-Board (37 inch)

14.14. C2-Board (42 inch)

14.15. SC-Board

14.16. SU-Board (37 inch)

14.17. SU-Board (42 inch) 11 11 12 12 12 13 13 13 13 14

14.18. SD-Board (37 inch)

14.19. SD-Board (42 inch)

14.20. SS-Board

14.21. Z-Board

14.22. H3, S1 and V1-Board

15 Sche matic Diagr ams

15.1. Schematic Diagram Notes

15.2. Main Block Diagram

15.3. PF-Board Block Diagram

15.4. PF-Board Schematic Diagram (TH-37PW7/PWD7 series) 14 14

15.5. PF-Board Schematic Diagram (TH-42PW7/PWD7 series) 14 14 15 15

16 17

17 18 19 19 19

15.6. P-Board Block Diagram

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

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

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

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

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

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

15.13. HA-Board Block and Schematic Diagram

15.14. HB-Board Block Diagram

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

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

15.17. HX-Board Block Diagram

15.18. HX-Board Schematic Diagram 22

15.19. J-Board Block Diagram

15.20. J-Board (1 of 4) Schematic Diagram (TH-37PW7/PWD7 23 26

15.21. J-Board (2 of 4) Schematic Diagram (TH-37PW7/PWD7

15.22. J-Board (3 of 4) Schematic Diagram (TH-37PW7/PWD7 29 30

15.23. J-Board (4 of 4) Schematic Diagram (TH-37PW7/PWD7 30

15.24. J-Board (1 of 4) Schematic Diagram (TH-42PW7/PWD7

15.25. J-Board (2 of 4) Schematic Diagram (TH-42PW7/PWD7 35 37

15.26. J-Board (3 of 4) Schematic Diagram (TH-42PW7/PWD7 40 41

15.27. J-Board (4 of 4) Schematic Diagram (TH-42PW7/PWD7 42 43 44 46 48 50 51 52 53 54 57

15.28. D-Board Block Diagram

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

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

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

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

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

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

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

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

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

series)

58 59 60 61 63 64

65 66 67

69 70 71 72 73 74 75 76 77 78 79 80 81 82 83

91 92 93 94 95 96 97 98

99 100 101

TH-37PW7BX

15.38. D-Board (10 of 12) Schematic Diagram 102

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

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

15.41. C1, C2 and V1-Board Block Diagram

103 104 105

15.42. C1-Board (1 of 2) Schematic Diagram (TH-37PW7/PWD7 series)

106

15.43. C1-Board (2 of 2) Schematic Diagram (TH-37PW7/PWD7 series)

107

15.44. C1-Board (1 of 2) Schematic Diagram (TH-42PW7/PWD7 series)

108

15.45. C1-Board (2 of 2) Schematic Diagram (TH-42PW7/PWD7 series)

109

15.46. C2-Board (1 of 2) and V1-Board Schematic Diagram (TH37PW7/PWD7 series)

110

15.47. C2-Board (2 of 2) Schematic Diagram (TH-37PW7/PWD7 series)

111

15.48. C2-Board (1 of 2) and V1-Board Schematic Diagram (TH42PW7/PWD7 series)

112

15.49. C2-Board (2 of 2) Schematic Diagram (TH-42PW7/PWD7 series)

15.50. SC-Board Block Diagram

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

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

15.53. SU-Board Block Diagram

113 114 115 116 117

15.54. SU-Board Schematic Diagram (TH-37PW7/PWD7 series)

15.55. SU-Board Schematic Diagram (TH-42PW7/PWD7 series)

15.56. SD-Board Block Diagram

15.57. SD-Board Schematic Diagram (TH-37PW7/PWD7 series)

15.58. SD-Board Schematic Diagram (TH-42PW7/PWD7 series)

15.59. SS and S1-Board Block Diagram

15.60. SS and S1-Board Schematic Diagram

15.61. Z and H3-Board Block Diagram

15.62. Z-Board (1 of 2) Schematic Diagram

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

16 Parts Locatio n 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 Replaceme nt Parts List 19 Repl acement Parts List

19.1. Replacement Parts List Notes

19.2. Electrical Replacement List

118

119 120

121

122 123 124 125 126 127

129 130

130 131 132

133 135

135 136

1 Applicable signals

TH-37PW7BX

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 andrepeat 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-37PW7BX

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-37PW7BX

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.

5 PCB Structure sheet of GP7D 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 (Lower Right) C2 Data Drive (Lower Left) H3 Speaker terminal S1 Power switch

SS2 Sustain connection (Upper) SS3 Sustain connection (Lower)

V1 Front SW. & Remote receiver PF Line filter

P Power supply 1 HX PC_type_Input terminal HB BNC Composite/Component Video 2 HA BNC Component Video 2

Remarks

1. Recommend PCB´s for initial service for GP7D chassis.

2. For System model except BK, BS, EK, ES model

TH-37PW7BX

6 Service Hint

Service position for HB-Board, HA-Board and TY-42TM6

Note:

Extension cable kit for Slot Board is supplied as service fixtures and tools. (Part No. TZSC07040)

7 P.C.Board and Plasma panel replacement

TH-37PW7BX

Prior to the replacement, place the unit on the pedestal stand remove the front frame.

7.1. Removal of the back cover

a. Unscrew the screws (×16 ,×6 ,×4 ) and remove the back cover.

7.2. Removal of the Slot block

a. Unscrew the couplers (J1, J3, J5, J6, J8, J10). b. Unscrew the screws (×4) and remove the slot block.

7.3. Removal of the J-Board

a. Unscrew the screws (×7) and remote the J-Board.

7.4. Removal of the HX-Board

a. Unscrew the screws (×6) and remove the slot case.

b. Unscrew the screws (×4).

c. Unscrew the screws (×2) and remove the HX-Board.

TH-37PW7BX

7.5. Removal of the P-Board

a. Remove the couplers (P2, P5, P7, P9, P10, P11, P12, P23, P25, P27).

b. Unscrew the screws (×5) and remove the P-Board.

7.6. Removal of the Z-Board

7.7. Removal of the D-Board

a. Disconnect the couplers (D1, D3, D5, D25, D27) and the flexible cables (D31, D32).

b. Remove the shield cuse.

c. Unscrew the screws (×6) and remove the D -Board.

a. Remove the couplers (Z5, Z6, Z7, Z8). b. Unscrew the screws (×4

theZ-BoardBracket. c. Unscrew the screws (×4

) and remove the Z-Board with

) and remove the Z-Board.

TH-37PW7BX

7.8. Removal of the PF-Board

a. Remove the coupler (PF1). b. Unscrew the screws (×2) and remove the AC inlet.

c. Remove the couplers (PF9, PF10). d. Unscrew the screws (×4), and remove the PF-Board.

7.10. Removal of the SU-Board

a. Unscrew the screws (×2). b. Slide the SU-Board to the left and disconnect from the

couplers (SC41) on the SC-Board. c. Remove the coupler (SU45). d. Remove the flexible cables (SU1, SU2, SU3) connected to

the SU-Board, and remove the SU-Board.

7.9. Removal of the H3-Board

a. Unscrew the screws (×2 ), and remove the H3-Board with the Bracket.

b. Unscrew the screws (×4

), and remove the H3-Board.

7.11. Removal of the SD-Board

a. Unscrew the screws (×2). b. Slide the SD-Board to the left and disconnect from the

couplers (SC42) on the SC-Board. c. Remove the coupler (SD46). d. Remove the flexible cables (SD1, SD2, SD3) connected to

the SD-Board, and remove the SD-Board.

TH-37PW7BX

7.12. Removal of the SC-Board

a. Remove the couplers (SC2, SC20, SC23, SC45, SC46).

Unscrew the screws (×6) and remove the SC-Board.

7.14. Removal of the C1-Board

a. Remove the flexible cables (CB1, CB2, CB3). b. Remove the flexible cables (C11, C12) release the speaker

cables from the clampers (×2) on the C1-Board. c. Unscrew the screws (×4), and remove the C1-Board.

7.15. Removal of the C2-Board

a. Remove the cables (CB4, CB5, CB6, CB7). b. Remove the couplers (C23, C24), a flexible cable (C21) and

release the speaker cables from the clamper on the C2-Board. c. Unscrew the screws (×4), and remove the C2-Board.

7.13. Removal of the SS-Board

a. Remove the couplers (SS11, SS12, SS23, SS34). b. Remove the flexible cables (SS41, SS42, SS43, SS44). c. Unscrew the screws (×6), and remove the SS-Board.

7.16. Removal of the Front frame (glass)

a. Remove the screws (×2) fasten on the panel and remove the front panel.

b. Release all cables from the clamper on the bracket of the front frame.

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

TH-37PW7BX

7.18. Replacement of the plasma panel

a. 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.

b. Fit the stand brackets (left, right.) fast 4 screws each on the new plasma panel.

c. Place the plasma panel section on the servicing stand. d. Attach the front frame 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.

7.17. Removal of stand brackets

a. Remove the plasma panel section from the servicing stand and lay on a table (covered), with the plasma panel surface facing downward.

Spread a soft cloth for protection, to prevent panel surface from scratching.

b. Remove the stand bracket (left, right) fastening screws (×4 each) and remove the stand brackets (left, right).

TH-37PW7BX

8 Location of Lead Wiring

9 Adjustment Procedure

TH-37PW7BX

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: Normal 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) 156V ± 1V VR6074 (SS) Vset TPVSET

(SC) Vad TPVAD (SC) -90V ± 1V VR6477

Vscn TPVSCN

(SC) Vda TPVDA (SS) 67V ± 1V R665 (P)

*See the Panel label.

174V ± 1V R628 (P)

232V ± 5V ---

(SC)

Vad*+120V ±2V---

TH-37PW7BX

9.2. Initialization Pulse Adjust

1. Input the Cross hatch signal to plasma video input.

2. Set the picture controls as follows.

· Picture mode: Normal

· White balance: Cool

3. Connect OSC: lloscope to TPSCI and adjust R6523 for 15±10µ Sec.

4. Connect OSC: lloscope to TPSCI and adjust R6557 for 184±10µ Sec.

Test point Volume Level T1 TPSC1 (SC) R6523 (SC) 15 ± 10µ Sec T2 TPSS1 (SS) R6557 (SC) 184 ± 10µ Sec

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) 174V ± 1V R628 (P)

Vda TPVDA (SS) 67V ± 1V R665 (P)

SC Board Vad TPVAD (SC) -90V ± 1V VR6477 (SC)

Vset TPVSET (SC) 232V ± 5V --Vscn TPVSCN (SC) Vad + 120 ± 2V ---

SS Board Ve TPVE (SS) 156V ± 1V VR6074 (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

TH-37PW7BX

9.5. Test Point Location

TH-37PW7BX

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-37PW7BX

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-37PW7BX

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

11 Alignment

11.1. PC/RGB panel white balance

INPUT Alignment menu ProcedureEquipment Setting

TH-37PW7BX

1 PC Color Picture:

Gray Scale Analyzer Normal Pattern White balance:

Aspect:

High light 75%

Low light 15%

1) Set G cut off to " 80 ".

Cool

16:9

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

PANEL W/B

G Drive 3) Set G Drive to " E8 ".

PANEL W/B

B Drive 4) Adjust B and R Drive to set color temperature

R Drive as shown Fig.-03.

PANEL W/B

R,G,B Drive 5) 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

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 1) to 5) 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 1) to 5) 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

Cool

Aspect:

16:9

TH-37PW7BX

INPUT 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

RGB Gray Scale Pattern

White balance:

Cool R Drive

Normal G Drive

Warm B Drive

Balance Cool Normal Warm

R Cut off G Cut off B Cut off

2) Input RGB signal.

High light 75%

Low light 15% 3) Copy PC R,G,B drive and cut off data of each white

balance mode to RGB position.

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

Normal Cut off data as follows.

Aspect:

16:9

White

DVI Gray Scale Pattern

White balance:

Cool R Drive

Normal G Drive

Warm B Drive

Balance Cool Normal Warm

R Cut off G Cut off B Cut off

2) Input NTSC signal.

High light 75%

Low light 15% 3) Copy PC R,G,B drive and cut off data of each white

balance mode to DVI position.

INPUT Alignment menu ProcedureEquipment Setting

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

Normal Cut off data as follows.

Aspect:

16:9

White

RGB Gray Scale Pattern

White balance:

Cool R Drive

Normal G Drive

Warm B Drive

Balance Cool Normal Warm

R Cut off G Cut off B Cut off

2) Input PAL signal.

High light 75%

Low light 15% 3) Copy PC R,G,B drive and cut off data of each white

balance mode to RGB position.

TH-37PW7BX

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

Normal Cut off data as follows.

Aspect:

16:9

White

DVI Gray Scale Pattern

White balance:

Cool R Drive

Normal G Drive

Warm B Drive

Balance Cool Normal Warm

R Cut off G Cut off B Cut off

2) Input DVI signal.

High light 75%

Low light 15% 3) Copy PC R,G,B drive and cut off data of each white

balance mode to DVI position.

TH-37PW7BX

11.2. HD/ 525i /525p /625i /625p panel white balance

INPUT Alignment menu ProcedureEquipment Setting

1HD(720i or 1080i) Color Picture:

Gray Scale Analyzer Normal Pattern

High light 75%

Low light 15%

White balance:

Cool

Aspect: PANEL W/B

16:9 G cut off 1) Set G cut off to " 80 ".

PANEL W/B

B cut off

R cut off

Sub Adjust

Sub Bright

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

PANEL W/B

G Drive 3) Set G Drive to " E8 ".

PANEL W/B

B Drive 4) Adjust B and R Drive to set color temperature

R Drive as shown Fig.-04.

PANEL W/B

R,G,B Drive 5) 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

Color Temp. x y

Cool(Hi) 0.276 0.276

Normal(Mid) 0.288 0.296

Warm(Low) 0.313 0.329

Fig. -04

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

Normal PANEL W/B

White balance: R,G,B cut off 2) Repeat procedure 1) to 5) 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 1) to 5) 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

Cool

Aspect:

16:9

INPUT 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

RGB Gray Scale Pattern

White balance:

Cool R Drive

Normal G Drive

Warm B Drive

Balance Cool Normal Warm

R Cut off G Cut off B Cut off

2)Change input signal to 525i and 525p.

High light 75%

Low light 15% 3) Copy HD drive and cut off data of each white

balance mode to each signals position.

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

Normal Cut off data as follows.

Aspect:

16:9

White

RGB Gray Scale Pattern

White balance:

Cool R Drive

Normal G Drive

Warm B Drive

Balance Cool Normal Warm

R Cut off G Cut off B Cut off

TH-37PW7BX

2)Change input signal to 525p and 625i.

High light 75%

Low light 15% 3) Copy HD drive and cut off data of each white

balance mode to each signals position.

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

Normal Cut off data as follows.

Aspect:

16:9

White

RGB Gray Scale Pattern

White balance:

Cool R Drive

Normal G Drive

Warm B Drive

Balance Cool Normal Warm

R Cut off G Cut off B Cut off

2)Change input signal to 625i and 625p.

High light 75%

Low light 15% 3) Copy HD drive and cut off data of each white

balance mode to each signals position.

TH-37PW7BX

12 Trouble shooting guide

12.1. Self Check

12.1.1. Display Indication

1. Self-check is used to automatically check the bus line controlled circuit of the Plasma display.

2. To get into the Self-check mode, press the volume down button on the customer controls at the front of the set, at the same time pressing the OFF-TIMER button on the remote control, and the screen will show :-

If the CCU ports have been checked and found to be incorrect Or not located then " - - " will appear in place of " OK "

12.1.2. 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.

12.2. No Power

First check point

There are following 3 states of No Power indication by power LED.

1. No lit

2. Green is lit then turns red blinking a few seconds later.

3. Only red is lit.

1. No lit

TH-37PW7BX

12.3. No Picture

12.4. 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.

Fig - 1

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