TOSHIBA 42WP16A, 42WP16H, 42WP16C, 42WP16E, 42WP16R Service Manual
...
FILE NO. 050-200121
SERVICE MANUAL
PLASMA DISPLAY MONITOR
42WP16A, 42WP16H
42WP16C, 42WP16E
42WP16R, 42WP16B
PRINTED IN JAPAN Dec.,2001
P
CONTENTS
1 Safety Precautions 4
1.1. General Guidelines
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
3 PCB Structure sheet of GP4D chassis
4 Service Hint
5 Location of Lead Wiring
6 Adjustment Procedure
6.1. +B Set-up
6.2. Driver Set-up
6.3. Initialization Pulse Adjust
6.4. P.C.B. (Printed Circuit Board) exchange
6.5. Adjustment Volume Location
6.6. Test Point Location
7 Serviceman mode
7.1. CAT (computer Aided Test) mode
7.2. IIC mode structure (following items value is sample data.)
8 Alignment
8.1. NTSC panel white balance
8.2. PAL/SECAM panel white balance
8.3. Pedestal setting
8.4. PC/RGB panel white balance
8.5. HD/ 525i /525p panel white balance
8.6. 625i panel balance
8.7. Sub brighness setting
9 Trouble shooting guide
9.1. Self Check
9.2. No Power
9.3. No Picture
9.4. Local screen failure
9.5. D-Board
10 IC Block Diagram
11 Conductor Views
11.1. F-Board
11.2. P1-Board
11.3. P3, P5, P6, P7 and P8-Board
11.4. HX-Board
11.5. HZ-Board (Option RTB421)
11.6. J-Board
11.7. D-Board
11.8. C1, C2, C3 and C4-Board
11.9. SC-Board
11.10. SU and SD-Board
11.11. SS, SS2 and SS3-Board
11.12. H3, S1 and V1-Board
Page Page
12 Block and Schematic Diagrams
4
5
6
7
8
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10
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14
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16
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24
26
26
27
28
28
29
31
33
33
34
37
39
40
42
44
47
49
52
54
57
12.1. Schematic Diagram Notes
12.2. Main Block Diagram
12.3. Power Block Diagram
12.4. P1-Board Schematic Diagrams
12.5. F and P3-Board Schematic Diagram
12.6. P5, P6, P7 and P8-Board Schematic diagram
12.7. HX Block Diagram
12.8. HX-Board Schematic Diagrams
12.9. HZ Block Diagrams
12.10. HZ-Board (1/2) (Option RTB421) Schematic Diagram
12.11. HZ-Board (2/2) (Option RTB421) Schematic Diagram
12.12. J-Board Block Diagrams
12.13. J-Board (1/5) Schematic Diagrams
12.14. J-Board (2/5) Schematic Diagrams
12.15. J-Board (3/5) and H3-Board Schematic Diagrams
12.16. J-Board (4/5) Schematic Diagrams
12.17. J-Board (5/5) Schematic Diagrams
12.18. D-Block Diagrams
12.19. D-Board (1/14) Schematic Diagrams
12.20. D-Board (2/14) Schematic Diagrams
12.21. D-Board (3/14) Schematic Diagrams
12.22. D-Board (4/14) Schematic Diagrams
12.23. D-Board (5/14) Schematic Diagrams
12.24. D-Board (6/14) Schematic Diagrams
12.25. D-Board (7/14) Schematic Diagrams
12.26. D-Board (8/14) Schematic Diagrams
12.27. D-Board (9/14) Schematic Diagrams
12.28. D-Board (10/14) Schematic Diagrams
12.29. D-Board (11/14) Schematic Diagrams
12.30. D-Board (12/14) Schematic Diagrams
12.31. D-Board (13/14) Schematic Diagrams
12.32. D-Board (14/14) Schematic Diagrams
12.33. C1-Board Schematic Diagrams
12.34. C2-Board Schematic Diagrams
12.35. C3-Board and V1-Board Schematic Diagrams
12.36. C4-Board Schematic Diagrams
12.37. SC-Board Block Diagrams
12.38. SC-Board (1/2) Schematic Diagrams
12.39. SC-Board (2/2) Schematic Diagrams
12.40. SU/SD Block Diagram
12.41. SU-Board Schematic Diagrams
12.42. SD-Board Schematic Diagrams
12.43. SS-Board Block Diagrams
12.44. SS, SS2, SS3 and S1-Board Schematic Diagrams
13 Mechanical Parts Location
59
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60
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103
2
14 Mechanical Replacement Parts List 105
15 Replacement Parts List
15.1. Relpacement Parts List Notes
106
106
15.2. Electrical Replacement Parts List
16 Specifications
107
128
3
1 Safety Precautions
1.1. 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.
1.1.1. 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
1M9 and 5.2M9 .
When the exposed metal does not have a return path to
the chassis, the r eading must be
.
Figure 1
1.1.2. 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 1.5k9, 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.
4
2 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).
5
3 PCB Structure sheet of GP4D chassis
Board Name Reference No. Function
Except 42WP16C 42WP16C
D TZTNP02KNSR TZTNP01KNSC Digital process & control
J TXN/J10JAS Separator / Audio Out
SS TNPA2262 Scan out
SC TNPA2261 Scan out
SU TNPA2259 Sustain connection (Upper)
SD TNPA2260 Sustain connection (Lower)
C1 TNPA2253 Data Drive (Upper Left)
C2 TNPA2254 Data Drive (Upper Right)
C3 TNPA2255 Data Drive (Lower Right)
C4 TNPA2256 Data Drive (Lower Left)
H3 TNPA2249 Speaker terminal
S1 TNPA2283 Power switch
SS2 TNPA2263 Sustain connection (Upper)
SS3 TNPA2264 Sustain connection (Lower)
V1 TNPA2282 Front SW. & Remote receiver
F TXN/F1JASE Line filter
P1 TXN/P11JASE-N Power supply
P3 TNPA1777 Drive voltage oscillator
P5 TNPA1778 Primary oscillator
P6 TNPA1779 PFC oscillator
P7 TNPA1780 Drive voltage protection
P8 TNPA1781 Process voltage protection
HX TZTNP01KNSR PC_type_Input terminal
HZ TXNHZ10JJS RCA type_Input terminal
6
4 Service Hint
7
5 Location of Lead Wiring
8
6 Adjustment Procedure
6.1. +B Set-up
6.1.1. Item / Preparation
1.Input a Grey scale signal.
2.Set the picture controls: Picture mode: Normal
White balance: Normal
6.1.2. Adjustments
Adjust and confirm indicated test point for the specified voltage.
Adjust
Test point Voltage Volume Name
P4 pin 1 (Hot) 400V ±1V R426 (P1) PFC
P1 pin 3 175V ±1V R625 (P3) Vsus
P2 pin 3 160V ±1V R498 (P1) Vbk
P12 pin 1 67V ±0.5V R519 (P1) Vda
Confirm
Test point Voltage Volume Name
P23 pin 2 15V ±0.5V +15V
P5 pin 1 13.2 ±0.5V +13V
P13 pin 1 13.5V ±0.5V Audio 15V
P13 pin 3 -13.5V ±0.5V Audio -15V
P5 pin 5 5.1V ±0.3V 5V
P7 pin4 5.0 ±0.3V STB5V (1)
P14 pin 8 5.0V ±0.3V STB5V (2)
P10 pin 1 17.0V ±0.5V FAN +B
P10 pin 4 5.1V ±0.3V FAN 5V
6.2. Driver Set-up
6.2.1. Item / Preparation
1.Input an APL 100 % white signal.
2.Set the picture controls: Picture mode: Normal
White balance: Cool
Aspect: 16:9
6.2.2. Adjustments
Adjust driver section voltages referring the panel data on the
panel data label.
Test point Voltage Volume Name
TPVSUS
(SS-BOARD)
TPVBK
(SC-BOARD)
TPVE
(SS-BOARD)
TPVSET
(SC-BOARD)
TPVAD
(SC-BOARD)
TPVDA
(SC-BOARD)
*See the Panel label.
Vsus ±1V* R625 (P3) Vsus
Vbk ±1V* R498 (P1) Vbk
Ve ± 1V* R6774 (SS) Ve
218 V ±6V --- Vset
Vad ±1V* R6477 (SC) Vad
67V±1V R519 (P1) Vda
9
6.3. 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) R6523 (SC) 20 ± 15µ Sec
T2 TPSC1 (SC) R6557 (SC) 170 ± 20µ Sec
TPSC1 SCAN OUTPUT
TPSS1 SUSTAIN OUTPUT
T1 20±15µs
VSET
T2 170±20µs
Scan
TPSC1
VSUS VBK
VSCN VAD
VSET2
6µs
VSUS
Sustain
TPSS1
INITIALIZE SCAN PRE-INITIALIZE
VE
ADDRESS PERIOD
VE2
SUSTAIN
10
VSUS
6.4. P.C.B. (Printed Circuit Board) exchange
6.4.1. Caution
1.To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
6.4.2. Quick adjustment after P.C.B. exchange
P.C.B. Item Volume Test point Level
P board PFC R426 (3) P4 connector pin 1 400V ± 1 V
Vsus R625 (P3) TPVsus (SS) 175V ± 1 V
Vbk R498 (P1) TPVBK (SC) 160V ± 5 V
Vda R519 (P1) TPVDA (SS) 67V ± 1 V
SC board Vad R6477 TPVAD (SC) -90 ± 1 V
SS board Ve R6774 TPVE (SS) 150 ± 1 V
D board White balance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625I signals.
6.5. Adjustment Volume Location
6.6. Test Point Location
11
7 Serviceman mode
7.1. CAT (computer Aided Test) mode
To exit the CAT mode, access the ID mode and switch off the main power.
7.1.1. 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.
12
7.1.2. 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 ( IC9705 / TVRJ562), this version can be upgrade by replacing with new version IC.
Memory data version D (IC9706 /TVRJ601) in the D board
Version Model Type Destination
10.** 42WP 16R/H/A/E/B Consumer Euro, H.K, U.K, Australia
11.** 42WP16C Consumer China
Memory data change
To exit the CD mode, press the R button on the remote control.
13
7.1.3. 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.
7.2. IIC mode structure (following items value is sample data.)
14
8 Alignment
8.1. 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
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
PANEL W/B
PANEL W/B
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.
exactly.
2
to 10 cd/m
6)Find 75% of white area by color sensor.
G Drive 7) Set G Drive to " D8 ".
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.
.
2
Color Temp. x y
Cool(Hi) 0.272 0.290
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
15
8.2. 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.
2.
2
Color Temp. x y
Cool(Hi) 0.272 0.290
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
16
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
SECAM signal 2) Input SECAM signal.
Balance Cool Normal Warm
R Drive
G Drive
B Drive
R Cut off
G Cut off
B Cut off
3) Copy PAL R,G,B drive and cut off data of each white
balance mode to SECAM position.
17
8.3. Pedestal setting
INPUT Alignment menu ProcedureEquipment Setting
** Adjust at the dark room.
1 Component Picture: PANEL W/B
(525i, 525p, 625i, Normal R cut off 1) Set R,G and B cut off to "
720i or 1080i) White balance: G cut off
Cool B cut off
Gray Scale Aspect:
Pattern 16:9
Black 2 %
Black 0 % at black 2% area and no emission at black 0% area.
2 RGB(PC) Picture: 1) Change input to RGB signal.
Gray Scale Normal PANEL W/B
Pattern White balance: R,G,B cut off 2) Repeat procedure 1) to 7) of Component input signal.
Aspect: R,G,B Drive
Chroma Control:
RGB Sub Adjust:
G Sub Bright
Chroma Control:
RGB Sub Adjust:
B Sub Bright
Chroma Control:
RGB Sub Adjust:
R Sub Bright
Cool PANEL W/B
16:9
2) Set Gun off to "
Gun off
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 "
Gun off
5) Adjust B Sub bright to start some of blue pixels emission
6) Set Gun off to "
Gun off
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 ".
Black 0 %
Black 2 %
18
8.4. 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.
2
.
2
Color Temp. x y
Cool(Hi) 0.272 0.290
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
19
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 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.
20
8.5. HD/ 525i /525p panel white balance
INPUT Alignment menu ProcedureEquipment Setting
1HD(720i or 1080i) 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
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.-04.
High light 75% Sub Adjust
Low light 15% Sub Bright 5) If Sub Bright is changed re-adjust it to set Low light
PANEL W/B
G Drive 7) Set G Drive to " D8 ".
PANEL W/B
R Drive as shown Fig.-04.
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.
exactly.
2
to 10 cd/m
6)Find 75% of white area by color sensor.
B Drive 8) Adjust B and R Drive to set color temperature
9) Repeat item 4) to 7) to set both Low light and
high light.
.
2
Color Temp. x y
Cool(Hi) 0.272 0.290
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 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
21
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
White balance:
RGB
Gray Scale
Pattern
High light 75%
Low light 15% 3) Copy HD drive and cut off data of each white
Cool
Normal
Warm
Balance Cool Normal Warm
R Drive
G Drive
B Drive
R Cut off
G Cut off
B Cut off
2)Change input signal to 525i and 525p.
balance mode to each signals position.
22
8.6. 625i panel balance
INPUT Alignment menu ProcedureEquipment Setting
1 625i 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.-05.
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.-05.
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.
2
.
2
Color Temp. x y
Cool(Hi) 0.272 0.290
Normal(Mid) 0.288 0.296
Warm(Low) 0.313 0.329
Fig. -05
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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8.7. Sub brighness setting
INPUT Alignment menu ProcedureEquipment Setting
** Adjust at the dark room.
1 NTSC Picture: PANEL W/B
Gray Scale Normal All cut off 1) Set white balance to
Pattern Aspect:
16:9 2) Adjust All cut off to start some pixels emission
at black 2% area and no emission at black 0% area.
3) Write down all cut off data.
Cool
.
4) Set white balance to
Black 2 %
Black 0 % 5) Adjust All cut off to set same data of Cool mode.
6) Set white balance to
7) Adjust All cut off to set same data of Cool mode.
** Adjust at the dark room.
2 PAL Picture: PANEL W/B
Gray Scale Normal All cut off 1) Set white balance to
Pattern Aspect:
16:9 2) Adjust All cut off to start some pixels emission
at black 2% area and no emission at black 0% area.
3) Write down all cut off data.
4) Set white balance to
Black 2 %
Black 0 % 5) Adjust All cut off to set same data of Cool mode.
6) Set white balance to
7) Adjust All cut off to set same data of Cool mode.
SECAM 8) Change to SECAM signal.
Gray Scale
Pattern 9) Copy PAL All cut off data to SECAM mode.
Nornal
warm
Cool
Nornal
warm
.
.
.
.
.
** Adjust at the dark room.
3 PC Picture: PANEL W/B
Gray Scale Normal All cut off 1) Set white balance to
Pattern Aspect:
16:9 2) Adjust All cut off to start some pixels emission
at black 2% area and no emission at black 0% area.
3) Write down all cut off data.
4) Set white balance to
Black 2 %
Black 0 % 5) Adjust All cut off to set same data of Cool mode.
6) Set white balance to
7) Adjust All cut off to set same data of Cool mode.
RGB
Gray Scale
Pattern
DVI
Gray Scale
Pattern
8) Change to RGB input signal.
9) Copy PC All cut off data to RGB mode.
10) Change to DVI input signal.
11) Copy PC All cut off data to DVI mode.
Cool
Nornal
warm
.
.
.
24
Alignment menu ProcedureINPUT Equipment Setting
** Adjust at the dark room.
4 525i Picture: PANEL W/B
Gray Scale Normal All cut off 1) Set white balance to
Pattern Aspect:
16:9 2) Adjust All cut off to start some pixels emission
at black 2% area and no emission at black 0% area.
3) Write down all cut off data.
Cool
.
4) Set white balance to
Nornal
.
Black 2 %
Black 0 % 5) Adjust All cut off to set same data of Cool mode.
6) Set white balance to
warm
.
7) Adjust All cut off to set same data of Cool mode.
525p 8) Change to 525p signal.
Gray Scale
Pattern 9) Copy 525i All cut off data to 525p mode.
HD
(720i or 1080i) 8) Change to HD signal.
Gray Scale
Pattern 9) Copy 525i All cut off data to HD mode.
** Adjust at the dark room.
5 625i Picture: PANEL W/B
Cool
Gray Scale Normal All cut off 1) Set white balance to
.
Pattern Aspect:
16:9 2) Adjust All cut off to start some pixels emission
at black 2% area and no emission at black 0% area.
3) Write down all cut off data.
4) Set white balance to
Nornal
.
Black 2 %
Black 0 % 5) Adjust All cut off to set same data of Cool mode.
6) Set white balance to
warm
.
7) Adjust All cut off to set same data of Cool mode.
25
9 Trouble shooting guide
9.1. Self Check
9.1.1. 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 "
Note:
In case of disconnected of HZ “IC3699 - -” is displayed.
9.1.2. Power LED Flashing timing chart
When an abnormality has occurred the unit, the protection circuit operates and cuts the power supply. At this time, the defective
part can be identified by the number of flashes of the Power LED at the front of the unit.
Above Fan function is operated during the fan is set.
26
9.2. 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
2.Red LED Blinking
When one or some of supply voltages from power supply circuit are declined red LED will be blinking as power
27
9.3. No Picture
9.4. 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
28
9.5. D-Board
9.5.1. OUTLINE
D board is consists of Analogue and Digital signal process, Discharge control and Micro control block.
D-board is operated by supply voltages of 3.3V, 5V, 13,5V and Standby 5V , RGB analogue (0.7Vp-p) and Sync. Signal.
D-board output parallel data video signal with control signal for the data driver circuit, Discharge control signal for Scan and Sustain
drive circuits and Micro control signals.
9.5.2. MAIN IC OPERATION
IC9007 ~ 9009 A/D Converter
RGB analogue signals are converted to 8 bits digital signal.
IC9204 FORMAT CONVERTER (LSI33)
Number of Horizontal line of input signals are converted to 480 lines.
This IC uses two clock lines, one is 15M 55MHz for input signal (ICK) and other one is 25M to 40MHz for out put signal. (OCK)
IC9400 PLASMA AI (LSI27)
At first input 8 bit signal data is memorized into two field memory (IC9402, IC9403), Plasma AI analyze APL level and
distribution of dark and bright components.
Plasma AI re-arrange 8 bit signal data to 12 bit signal data.
This IC also insert OSD (On-Screen Display signal) from Micro.
IC9501 SUB FIELD PROCESSOR
R,G and B 12 bit signal data is layout to fit with each electrodes of panel.
One field signal data is separated to upper 240 lines and lower 240 lines.
Both upper and lower signals are again separated odd and even number line and output.
9.5.3. DIAGNOSTIC
(1) General
Depend on the phenomenon possible defective section from Signal processing, Discharge control or Micro control section on
D-board can be diagnosed as follows.
1.Signal Processing section
a.No picture but panel has discharge.
b.Missing R, G or B signal
c.Dark Picture.
d.No OSD signal.
e.Vertical band noise appeared.
f.No picture or distortion on 1/4 area on the screen.
2.Micro control section
a.Does not turn on power.
b.No panel discharge.
3.Discharge control section
a.No discharge but Micro control is operated.
b.Dark picture
29
(2) First Check Point
Confirm that follow signals are input to D board.
Power Supply
Connector Pin Function Connector Pin Function
D5
1 13.5 V DC
3 5.0 V DC 2 3.3 V DC
- - 3 3.3 V DC
Input Signal
Connector Function Pin Function
D8-12 Analogue Green signal
D8-13 Analogue Blue signal 29 VD (Vertical Drive pulse)
D8-14 Analogue Red signal 34 CLP (Clamp pulse)
(3) Trouble shooting
D6
1 STB 5 V DC
37 HD (Horizontal Drive pulse)
D9
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