Toshiba 50 wide plasma display panel is develope for large
screen multimedia display with space saving.
The plasma display panel use AC type Sub-field drive system
with Dual scanning system.
This panel have also Asymmetric cell and Plasma AI
technology.
Fig. A Is the CRT and Plasma Display Panel(PDP) comparison
chart.
1.3.Rear Glass Structure
Fig. C
On the rear glass the data electrode is mounted.
The dielectric is coated on the rear glass.
Red, Green and Blue colour phosphors are formed on the data
electrode with the ribs. However to improve colour reproduction
and brightness, each colour phosphors are formed different
width This is called " Asymmetrical cell ".
1.4.Front Glass Structure
1.2.Plasma display panel structure
Fig. B
Plasma display panel structure
Plasma display panel is consist of front glass, rear glass and
Aluminum base.
The front glass has each 768 lines scan and sustain
transparence electrodes.
The rear glass has 4098 (1366 x 3 ) data electrodes on the
inner surface. These electrodes are connected to the data drive
circuit boards directory.
Fig. D
On the front glass scan and sustain transparent electrodes are
mounted in pair.
The dielectrics is coated on the front grass.
MgO over coat is also applied on the dielectrics.
The front and rear glasses are piled and sealed . And low
presser gas are charged between two glasses.
4
1.5.Pixel Structure
Fig. E
50 inch plasma display panel has 1,049,088 pixels.
Each pixels structure is shown fig. E.
1.6.Sub Field Drive system
1.7.Initialization
Fig. G
To clear any remaining electric charge into the pixel, trapezoid
voltage is applied between the scan and sustain electrodes.
Plasma discharge is started but the discharge become small
gradually.
Then any electric charge is cleared.
1.8.Write
Fig. F
Brightness control of plasma display panel is carried out by
plasma discharge time change. To control each pixelÃs
brightness Sub-field drive system is used.
A sub-field is consist of Initialize, Write and sustain operation.
Fig. H
Data Pulse which is positive polarity is input to data electrode
and Scan pulse which is negative polarity is input to scan
electrode simultaneously.
That means sum of data and scan pulses voltage is applied
between two electrodes as discharge start voltage.
Discharge is started into the pixel and gas is ionized.
During discharging Ion is c harged on the scan electrode side
and electron is charged on data electrode side.
5
1.9.Wall Voltage
1.11.Sustain Step 2
Fig. I
When input pulses are stopped, Ions and Electrons which are
charged on the dielectric around the electrodes are remained.
This charge is called Wall Voltage (Pilot voltage).
This operation is called Write .
1.10.Sustain Step 1
Fig. J
Negative polarityÃs Sustain pulse is input between sustain and
scan electrodes and voltage potential between two electrodes
becomes sum of Sustain pulse and wall voltage.
Then discharge start.
Fig. K
When sustain pulse is stopped, Ions and Electrons are
remained again as Wall voltage. However polarity of wall
voltage is reversed.
1.12.Sustain Step 3
Fig. L
Positive polarity´s Sustain pulse is input between sustain and
scan electrodes and discharge start again.
6
1.13.Sustain Step 4
1.15.Repeat Step 1 to Step 5
Fig. M
When sustain pulse is stopped, Ions and Electrons are
remained again as Wall voltage. However polarity of wall
voltage is reversed.
1.14.Sustain Step 5
Fig. N
Ions and Electrons which is generated by 2nd sustain
discharge are charged on the pixel wall(dielectric) around the
electrodes.
Fig. O
To keep discharge continuously step 1 to 5 operation will be
repeated.
As the result sustain pulse is alternated. Therefore we call this
drive system AC Drive type.
If sustain operation is repeated longer, brightness level of the
pixel is increased. Therefore depend on sustain discharge time
brightness of pixel is controlled.
1.16.Sub-Field drive
Fig. P
Sub-Field drive is PDP unique system.
While one TV field period, 8 bits digital video signal component
is reproduced by 8 s ub-fields operation.
Each Sub-Field´s address period are all same.(Consist of one
initialization and 768 scanning operation)
But Sustain period of each Sub-Field are different.1st Sub-
Field(SF) reproduce only 1 step brightness.
2nd SF reproduce 2 steps brightness.
Each sub-field´s sustain period are increased gradually.
However total 256 brightness difference can be reproduced on
the screen.
7
1.17.Dual Scan
1.19.Real Black drive
Fig. Q
The sustain period of sub-field drive system. Therefore
brightness peak is limited. Because 768 horizontal lines
scanning is carried out during address period.
Dual scan system can reduce scanning time from 768 to 384 in
the address period.
Then spaced time by dual scanning can be used for sustain
operation.
As the result Brightness peak level can be increased.
1.18.Plasma AI (Adaptive
brightness Intensifier)
Fig. S
For standard sub field drive, initialization discharge is done at
each sub field. So that during one TV field period same sub
field numbers of discharges are done even black signal was
displayed.
Therefore there are small emission at the black area.
The Real Black drive system improve black reproduction.
Initialization discharge is done at first sub field only.
Remaining sub field are not required discharge because Real
Black drive circuit applies initialization electric field remainder
pulse.
Fig. R
Plasma AI control sub-field drive operation which is called
Multi-Sprit Sub-Field drive control system.
Depend on the picture contents ( APL : Average Picture Level
) sustain time format of each sub-field are also rearranged from
binary format to linear cording sustain time. (Linear coding subÂfield)
Plasma AI select the best display condition for Plasma display
panel to display natural and crisp picture.
8
2Service Hint
Baord nameFunctionBoard nameFunction
C1Data drive (Upper Left)P4Panel drive power
C2Data drive (Upper Center)P5Processing voltage control
C3Data drive (Upper Right)P6PFC oscillator
C4Data drive (Lower Left)P7High Voltage protect
C5Data drive (Lower Center)P8Low Voltage protect
C6Data drive (Lower Right)P9Regulator
C7Saving powerS1Power switch
C8Saving powerSCScan drive
DDigital process & controlSDScan drive output (Lower)
DGRGB/IFSSSustain drive
FLine FilterSS2Sustain connection (Upper)
FLine FilterSS3Sustain connection (Lower)
HRear terminalSUScan drive output (Upper)
H3Speaker terminalT11Interface
P1Power supplyV1Front switch & Remote Receiver
P3Sustain voltage control
9
3Adjustment Procedure
3.1.+B Set-up
3.1.1.Item / Preparation
1.Confirm the main voltage set switch Is set to 230V. (A, B,
and E version) Confirm the main voltage set switch is set to
110V. (U version)
Note:
230V covers input AC voltage from 200V till 260V, and
110V covers from 90V till 130V.
2.Input a Grey scale signal.
3.Set the picture controls: ÂPicture mode: Normal
White balance: Normal
3.1.2.Adjustments
Adjust and confirm indicated test point for the specified voltage.
1.Press and hold the Volume down / - button on the front panel of the unit and press the status [ +] button on the remote
control 3 times quickly within 1 second, this will place the unit into the CAT menu (Main service mode)
2.Press the Access button on the remote control.
4.2.Exit
1.To exit the IIC mode,presstheR button on the remote control.
2.To exit the CAT mode, access the ID mode by the down button of cross buttons and switch off the main power and on again.
13
4.3.IIC menu structure
14
15
5Alignment
5.1.DG contrast
(Composit video signal)
INPUTEquipmentTest PointLevelRemark
Alignment menu
SubjectItem
1NTSCOscilloscope TP8004VPC SETTING
Colour Bar
2PALOscilloscope TP8004VPC SETTING
Colour Bar
(DG Boad)
(DG Board)
5.2.DVCO adjust
Alignment menu
SubjectItem
1 NTSC or PAL - -VPC SETTING
Colour Bar
Standard signal
DG CONTRAST
DG CONTRAST
DVCO SETTING
0.7V+-0.02V
(3A)
100IRE
0.55V+-0.02V
(3A)
ProcedureINPUTEquipmentTest Point
1) Access to DVCO SETTING mode.
2) Press ACCESS key on remote then automatic
DVCO setting is started.
3) When data becomes " 1 "adjustment is completed. .
* Do not use this function without input signal.
16
5.3.NTSC panel white balance
INPUTAlignment menuProcedureEquipmentSetting
1 NTSCColorPicture: 1) Find the nearest area to brightness of 10 cd/m2 as Low
Gray ScaleAnalyzerNormal Sub Adjust light by color sensor.
PatternWhite balance:Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m
Cool exactly.
Aspect:PANEL W/B
16:9G 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.
2
.
2
Color Temp.xy
Cool(Hi)0.2720.290
Normal(Mid)0.2880.296
Warm(Low)0.3130.329
Fig. -01
2Picture: 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
3Picture: 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.
Warm PANEL W/B
Aspect:R,G,B Drive
16:9
4Picture: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
17
5.4.PAL/SECAM panel white balance
INPUTAlignment menuProcedureEquipmentSetting
1 PALColorPicture: 1) Find the nearest area to brightness of 10 cd/m2 as Low
Gray ScaleAnalyzerNormal Sub Adjust light by color sensor.
PatternWhite balance:Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m
Cool exactly.
Aspect:PANEL W/B
16:9G 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.xy
Cool(Hi)0.2720.290
Normal(Mid)0.2880.296
Warm(Low)0.3130.329
Fig. -02
2Picture: 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
3Picture: 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.
Warm PANEL W/B
Aspect:R,G,B Drive
16:9
4Picture: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
18
Alignment menuProcedureEquipmentSetting
5Picture: 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.
BalanceCoolNormalWarm
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.
19
5.5.Pedestal setting
INPUTAlignment menuProcedureEquipmentSetting
** Adjust at the dark room.
1 ComponentPicture:PANEL W/B
(525i, 525p, 625i,NormalR cut off 1) Set R,G and B cut off to "
720i or 1080i)White balance:G cut off
CoolB cut off
Gray ScaleAspect:
Pattern16:9
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 ScaleNormal PANEL W/B
PatternWhite 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 %
20
5.6.PC/RGB panel white balance
INPUTAlignment menuProcedureEquipmentSetting
1 PCColorPicture: 1) Find the nearest area to brightness of 10 cd/m2 as Low
Gray ScaleAnalyzerNormal Sub Adjust light by color sensor.
PatternWhite balance:Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m
Cool exactly.
Aspect:PANEL W/B
16:9G 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.xy
Cool(Hi)0.2720.290
Normal(Mid)0.2880.296
Warm(Low)0.3130.329
Fig. -03
2Picture: 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
3Picture: 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.
Warm PANEL W/B
Aspect:R,G,B Drive
16:9
4Picture: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
INPUTAlignment menuProcedureEquipmentSetting
5Picture: 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 PC R,G,B drive and cut off data of each white
Cool
Normal
Warm
BalanceCoolNormalWarm
R Drive
G Drive
B Drive
R Cut off
G Cut off
B Cut off
2) Input RGB signal.
balance mode to RGB position.
22
5.7.HD/ 525i /525p panel white balance
INPUTAlignment menuProcedureEquipmentSetting
1HD(720i or 1080i)ColorPicture: 1) Find the nearest area to brightness of 10 cd/m2 as Low
Gray ScaleAnalyzerNormal Sub Adjust light by color sensor.
PatternWhite balance:Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m
Cool
Aspect:PANEL W/B
16:9G 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.xy
Cool(Hi)0.2720.290
Normal(Mid)0.2880.296
Warm(Low)0.3130.329
Fig. -04
2Picture: 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
3Picture: 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.
Warm
PANEL W/B
Aspect:R,G,B Drive
16:9
4Picture: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
23
INPUTAlignment menuProcedureEquipmentSetting
5Picture: 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
BalanceCoolNormalWarm
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.
24
5.8.625i panel balance
INPUTAlignment menuProcedureEquipmentSetting
1 625iColorPicture: 1) Find the nearest area to brightness of 10 cd/m2 as Low
Gray ScaleAnalyzerNormal Sub Adjust light by color sensor.
PatternWhite balance:Sub Bright 2) Adjust Sub bright to set Low light level to 10 cd/m
Cool exactly.
Aspect:PANEL W/B
16:9G 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.xy
Cool(Hi)0.2720.290
Normal(Mid)0.2880.296
Warm(Low)0.3130.329
Fig. -05
2Picture: 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
3Picture: 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.
Warm PANEL W/B
Aspect:R,G,B Drive
16:9
4Picture: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
25
5.9.Sub brighness setting
INPUTAlignment menuProcedureEquipmentSetting
** Adjust at the dark room.
1 NTSCPicture:PANEL W/B
Gray ScaleNormalAll cut off 1) Set white balance to
PatternAspect:
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 PALPicture:PANEL W/B
Gray ScaleNormalAll cut off 1) Set white balance to
PatternAspect:
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 PCPicture:PANEL W/B
Gray ScaleNormalAll cut off 1) Set white balance to
PatternAspect:
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 8) Change to RGB input signal.
Gray Scale
Pattern 9) Copy PAL All cut off data to SECAM mode.
Cool.
Nornal.
warm.
26
Alignment menuProcedureINPUTEquipmentSetting
** Adjust at the dark room.
4 525iPicture:PANEL W/B
Gray ScaleNormalAll cut off 1) Set white balance to
PatternAspect:
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 625iPicture:PANEL W/B
Cool
Gray ScaleNormalAll cut off 1) Set white balance to
.
PatternAspect:
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.
27
5.10.Pos./Size setting
1.Receive the test pattern signal which can be found the
center and edge position and align properly.
Alignment ItemReferenceSetting/Special feature
APL Shift LevelE2Confirmation only
ABL Point10Confirmation only
ABL GainE0Confirmation only
ABL Bank Select3FConfirmation only
5.12.SG Hold
SG Hold is the alignment tool for data copy function. Color /
Signal system can be set regardless of input signal.
5.13.Aging
Aging mode is internal pattern generator for panel setting
confirmation and the after image removal.
1.Access desired colour pattern by the Volume Up or Down
button on the remote control.
2.To exit press Menu button
5.13.1.Panel Colour
There are 4 colour pattern White, Red, Blue and Green.
5.13.2.Scroll Bar
Scroll bar is for the after image removal. Display scroll bar
approximately 15 minutes after alignment is competed.
5.14.1.Side panel color setting
Colour of side panel which are left and right side blank area of
4:3 aspect mode can be adjusted as desired color and
brightness.
1.Access Side panel Y(G), U(B) and V(R) by the left or right
button on the remote control.
2.Adjust desired color and brightness of side panel Y(G), U(B)
and V(R) by Volume UP or Down button on the remote
control.
(If 4:3 aspect will be used long time, change side panel
brightness optimum level for screen burn protection.)
5.15.CAT (Computer Aided Test)
mode
ModeFunctionAccess button
IICService Alignment Action
CD
(Complete
Diagnostics)
IT (Integrated Text) Not use
SD
(Status Display)
OSD on/offOSDdisplay
ID (Initial Data)Not use
Softwareversion
informationEEP
ROM edit
Factory useAction
switch
Mute
Mute
5.13.3.Ramp pattern
Ramp pattern is for digital contrast reproduction confirmation.
5.14.LSI 33 Adjust
LSI 33 PIPCR, LSI 27 Through and ABL Bank are for factory
parameter setting for Format converter (IC9204).
(IT Mode, and ID Mode is unused in serving.)
28
6SelfCheck
6.1.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 "
29
7Trouble shooting guide
7.1.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
30
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