HITACHI 42PD9800TA
SERVICE MODE AND LED BILKING CODES
Adjustment
HOW TO ENTER TO SERVICE MODE
Press the SUB-POWER button, and MENU button at
the same time, and hold for more than 5 seconds. The set turns on in adjustment
mode with OSD.
Changing data and Selecting
Adjustment code
When the set is in adjustment mode, the cursor UP, DOWN , LEFT , RIGHT and OK buttons of the remote control or R-side control buttons may be used as the adjustment keys.
UP, DOWN buttons are used for selecting adjustment code.
LEFT , RIGHT buttons are used for changing data values.
OK button is used for to fix data.
After finishing the necessary adjustment press MENU button. Adjustment mode is released and the set returns to normal condition.
When the set is in adjustment mode, the cursor UP, DOWN , LEFT , RIGHT and OK buttons of the remote control or R-side control buttons may be used as the adjustment keys.
UP, DOWN buttons are used for selecting adjustment code.
LEFT , RIGHT buttons are used for changing data values.
OK button is used for to fix data.
After finishing the necessary adjustment press MENU button. Adjustment mode is released and the set returns to normal condition.
Memory Initialize operation
NOTE: The execution of this function returns the adjustment codes to the preset values, therefore, adjustment data will be lost.
Procedure
(1) Enter Adjustment Mode.
(2) Select MEMORY INIT adjustment code (No.598) and change the data value from 0 to 1.
(3) Activate MEMORY INIT by pressing OK button.
(4) Select No.407 and change data value from 1 to 0.
(5) Check that the receiving channel goes to P1. Unit is set to preset values.
NOTE: The execution of this function returns the adjustment codes to the preset values, therefore, adjustment data will be lost.
Procedure
(1) Enter Adjustment Mode.
(2) Select MEMORY INIT adjustment code (No.598) and change the data value from 0 to 1.
(3) Activate MEMORY INIT by pressing OK button.
(4) Select No.407 and change data value from 1 to 0.
(5) Check that the receiving channel goes to P1. Unit is set to preset values.
How to check method of the use
accumulation time for panel.
Select No. 594 of Service Adjustment Menu.
Select No. 594 of Service Adjustment Menu.
Do for the following when flicker
is anxious.
This phenomenon depends on a contrast inprovement function of a panel.
In the following condition, there is the case that this phenomenon occurs.
But outbreak frequency is very low.
A still image of a single raster
A signal of the video specification gradation input
This phenomenon depends on a contrast inprovement function of a panel.
In the following condition, there is the case that this phenomenon occurs.
But outbreak frequency is very low.
A still image of a single raster
A signal of the video specification gradation input
ADJ Items
|
ADJ No.
|
Init. Value
|
Max. value
|
PC mode
|
132
|
0
|
1
|
Dynamic
mode
|
129
|
0
|
1
|
Normal
mode
|
130
|
0
|
1
|
Cinema
mode
|
131
|
0
|
1
|
Power Unit Vs Adjustment
Turn on the set and perform pre-heat run more
than 1 min on burn-in screen.
Turn Vs ADJ to adjust Vs voltage to be within
±0.1V of the value specified in the label on the panel. Adjust within ± 1V at
Vs1 Adjust within ± 0.1V at Vs2.
Connect voltmeter leads to Vs and GND test
points of the power unit.
Reconfirm that Vs voltage remains within
±0.45V of the specified value. Readjust if it’s outside of the margin.
Video Color Temperature Adjustment (Cool)
Adjustment Preparations
1.Set the signal generator output as All White Picture Menu is set as [RESET].
2.Component signal (480i) Video level : 0.700Vp-p Sync level : 0.300Vp-p Setup level : 0V
2.Component signal (480i) Video level : 0.700Vp-p Sync level : 0.300Vp-p Setup level : 0V
3. Picture Mode : Dynamic
4. Confirm that the mode is set as Factory Adjustment mode.
4. Confirm that the mode is set as Factory Adjustment mode.
Adjustment Procedures
1.Perform the following adjustment with the remote control
2.Set the CRT color analyzer (CA100) at the center of the panel.
1.Perform the following adjustment with the remote control
2.Set the CRT color analyzer (CA100) at the center of the panel.
3.After receiving the video signal, step down
the two (or one) among adjustment No. 0, 1, 2 and adjust the values as shown
below.
4.Ensure that the service adjustment menu (Main (2)) No. 0, 1, 2, are all set as 255. (To display Main(2) menu, press “OK” button in Main(1) menu. No.599.) Specification
Video color temperature (Cool)
x=0.272±0.005
y=0.277±0.005
4.Ensure that the service adjustment menu (Main (2)) No. 0, 1, 2, are all set as 255. (To display Main(2) menu, press “OK” button in Main(1) menu. No.599.) Specification
Video color temperature (Cool)
x=0.272±0.005
y=0.277±0.005
Video Color Temperature Adjustment (Normal)
Preparation
1. Set signal generator output as All White
(Window ratio: 100%).
2. Component signal (480i) Video level : 0.700Vp-p Sync level : 0.300Vp-p Setup level : 0V
3.Check that Picture Menu is set as [RESET] mode.
4.Picture Mode : Dynamic Set into Factory Adjustment mode.
2. Component signal (480i) Video level : 0.700Vp-p Sync level : 0.300Vp-p Setup level : 0V
3.Check that Picture Menu is set as [RESET] mode.
4.Picture Mode : Dynamic Set into Factory Adjustment mode.
Procedure
1.Perform the following adjustment with the remote control.
2.Set the CRT Color Analyzer (CA-100) at the center of the panel.
3.Ensure that service adjustment menu (Main(2)) No. 3, 4, 5 are all set as 255.
4.After receiving the video signal, step down the two (or one) among adjustment No. 3, 4, 5 and adjust the values as shown below. (Note) At least one of the data should be 255.
2.Set the CRT Color Analyzer (CA-100) at the center of the panel.
3.Ensure that service adjustment menu (Main(2)) No. 3, 4, 5 are all set as 255.
4.After receiving the video signal, step down the two (or one) among adjustment No. 3, 4, 5 and adjust the values as shown below. (Note) At least one of the data should be 255.
<Specification>
Video color Color temperature (Normal)
x=0.285 0.005
y=0.293 0.005
Video color Color temperature (Normal)
x=0.285 0.005
y=0.293 0.005
Video Color Temperature Adjustment (Warm)
Preparation
1.Set signal generator output as All White
(Window ratio: 100%).
2.Component signal (480i) Video level : 0.700Vp-p Sync level : 0.300Vp-p Setup level : 0V
3.Check that Picture Menu is set as [RESET] mode.
4. Picture Mode : Dynamic Set into Factory Adjustment mode.
2.Component signal (480i) Video level : 0.700Vp-p Sync level : 0.300Vp-p Setup level : 0V
3.Check that Picture Menu is set as [RESET] mode.
4. Picture Mode : Dynamic Set into Factory Adjustment mode.
Procedure
1.Perform the following adjustment with the remote control.
2.Set the CRT Color Analyzer (CA100) at the center of the panel.
3.Ensure that service adjustment menu (Main(2)) No. 6, 7, 8 are all set as 255.
4.After receiving the video signal, step down the two (or one) among adjustment No. 6, 7, 8 and adjust the values as shown below. (Note) At least one of the data should be 255.
1.Perform the following adjustment with the remote control.
2.Set the CRT Color Analyzer (CA100) at the center of the panel.
3.Ensure that service adjustment menu (Main(2)) No. 6, 7, 8 are all set as 255.
4.After receiving the video signal, step down the two (or one) among adjustment No. 6, 7, 8 and adjust the values as shown below. (Note) At least one of the data should be 255.
<Specification>
Video color Color temperature (Warm)
x=0.314 0.005
y=0.327 0.005
Video color Color temperature (Warm)
x=0.314 0.005
y=0.327 0.005
Troubleshooting
How to get to Burn-in mode
This mode displays the test patterns of some single color raster in turn. These signals are from built-in generator of panel. So it can be presumed that maybe the panel has some trouble when the screen of Burn-in mode is abnormal. Using the R-side control buttons with the set turned off (standby) can activate this mode. Press the SUB-POWER( ) button and VOLUME DOWN( ) button at the same time, and hold for more than 5 seconds. (This operation is equal to select service Adjustment Menu No.407 and change data from 0 to 1.)
The set turns on with single color raster and the OSD of [BURN IN: ON].
To escape from this mode, press the SUB-POWER( ) button and button at the same time, and hold for more than 5 seconds. Burn-in mode will be released.
How to check method of the use accumulation time for panel.
Select No.594 of Service Adjustment Menu.
How to get to Burn-in mode
This mode displays the test patterns of some single color raster in turn. These signals are from built-in generator of panel. So it can be presumed that maybe the panel has some trouble when the screen of Burn-in mode is abnormal. Using the R-side control buttons with the set turned off (standby) can activate this mode. Press the SUB-POWER( ) button and VOLUME DOWN( ) button at the same time, and hold for more than 5 seconds. (This operation is equal to select service Adjustment Menu No.407 and change data from 0 to 1.)
The set turns on with single color raster and the OSD of [BURN IN: ON].
To escape from this mode, press the SUB-POWER( ) button and button at the same time, and hold for more than 5 seconds. Burn-in mode will be released.
How to check method of the use accumulation time for panel.
Select No.594 of Service Adjustment Menu.
Self-Diagnosis
Function
This chassis has 2 modes of self-diagnosis function.
(1) PDP panel check mode: It indicates the one latest record of the PDP panel failure with blinking of the power indication light (LED).
(2) Signal circuit check mode: It indicates the check result on some points of the signal circuit and the history of them with On-Screen Display (OSD).
This chassis has 2 modes of self-diagnosis function.
(1) PDP panel check mode: It indicates the one latest record of the PDP panel failure with blinking of the power indication light (LED).
(2) Signal circuit check mode: It indicates the check result on some points of the signal circuit and the history of them with On-Screen Display (OSD).
PDP panel self-diagnosis function
This function is for a PDP panel failure with no picture. To enter to this Self-Diagnosis mode, follow the next steps:
Preparation:
1) The Power Cord should be connected to AC line and the Main Power switch should be turned on.
2) Turn the power off by the SUB-POWER( ) button of the monitor or the remote control.
Procedure:
1) Press the SUB-POWER( ) button and button on the bottom of the monitor at the same time, and keep it for more than 5 seconds after the power turned on.
2) It generates red blinking series of the power indicator light.
3) Any operation would cancel the Self -Diagnosis mode.
4) The next table shows the PDP PWB in which failure most probably would be allocated according to the number of blinks.
This function is for a PDP panel failure with no picture. To enter to this Self-Diagnosis mode, follow the next steps:
Preparation:
1) The Power Cord should be connected to AC line and the Main Power switch should be turned on.
2) Turn the power off by the SUB-POWER( ) button of the monitor or the remote control.
Procedure:
1) Press the SUB-POWER( ) button and button on the bottom of the monitor at the same time, and keep it for more than 5 seconds after the power turned on.
2) It generates red blinking series of the power indicator light.
3) Any operation would cancel the Self -Diagnosis mode.
4) The next table shows the PDP PWB in which failure most probably would be allocated according to the number of blinks.
Number
of red blinks
of power indication light |
Presumed
failing PWB
of PDP panel |
1
|
Logic
|
2
|
X-SUS
|
3
|
Y-SUS,
SDM
|
4
|
X-SUS,
Y-SUS, SDM, PSU
|
5
|
ABUS,
ADM, PSU
|
6
|
ADM
temperature
|
7
|
ADM
temperature
|
8
|
All of
above-mentioned
PWB’s |
Signal circuit self-diagnosis
function
This function is for the failure of the signal circuit, for example the phenomenon as below: "Sometimes power turns off abnormally." "Sometimes picture disappears abnormally." To enter to this Self-Diagnosis mode, follow the next steps:
Preparation:
1) The Power Cord should be connected to AC line and the Main Power switch should be turned on.
2) Turn the power off by the SUB-POWER( ) button of the monitor or the remote control.
Procedure:
1) Press the SUB-POWER( ) button and INPUT ( ) button on the side of the monitor at the same time, and keep it for more than 5 seconds after the power turned on.
2) The monitor will be turned on, and it will display On-Screen Display of the Self-check result and the failure history as below.
3) Any operation would cancel the Self -Diagnosis mode.
4) The following table shows the OSD symbols and contents of failure PWB in which failure most probably would be allocated according to the number of blinks.
This function is for the failure of the signal circuit, for example the phenomenon as below: "Sometimes power turns off abnormally." "Sometimes picture disappears abnormally." To enter to this Self-Diagnosis mode, follow the next steps:
Preparation:
1) The Power Cord should be connected to AC line and the Main Power switch should be turned on.
2) Turn the power off by the SUB-POWER( ) button of the monitor or the remote control.
Procedure:
1) Press the SUB-POWER( ) button and INPUT ( ) button on the side of the monitor at the same time, and keep it for more than 5 seconds after the power turned on.
2) The monitor will be turned on, and it will display On-Screen Display of the Self-check result and the failure history as below.
3) Any operation would cancel the Self -Diagnosis mode.
4) The following table shows the OSD symbols and contents of failure PWB in which failure most probably would be allocated according to the number of blinks.
If you clear history of failure, make FACTORY
RESET: enter the factory setting mode; press the SUB-POWER button and UP button on the side of the
monitor at the same time. And keep it for more than 5 seconds after the power turned on.
