Panasonic TX-PR50VT30 Service Manual ▷ View online
33
10 Measurements and Adjustments
10.1. Adjustment
10.1.1. Vsus selection
Caution:
When Plasma panel or A-board is replaced, Vsus should be set to LOW.
Procedure
1. Go into main item [VSUS] in Service Mode. LOW will be displayed.
2. Press [OK] button to go to TEST stage.
2. Press [OK] button to go to TEST stage.
White pattern without On-Screen Display will be displayed during TEST and CONF stage. Press [5] button to display the
On-Screen Display.
On-Screen Display.
3. In LOW setting
If no several dead pixel is visible remarkably in white pattern, press [3] button to go to CONF stage.
4. Press [OK] button in CONF stage to store LOW.
5. Exit Service Mode by pressing [Power] button.
5. Exit Service Mode by pressing [Power] button.
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10.1.2. Sub-Contrast adjustment
Name of measuring instrument
Connection
Remarks
RF generator
Base Band signal generator
HD signal generator
Base Band signal generator
HD signal generator
Steps
Remarks
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
And after SRQ-L, begin an adjustment 2 seconds later.
Adjustment of TV (RF system)
Note:
In adjustment, you must setting to modulation of signal at 90%.
1. Receive a RF PAL 100% Full White or Split Colour bar shown as below.
2. Goes into service mode.
3. Push a [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].
3. Push a [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].
Adjustment
1. The colour key yellow button of remote control is pushed.
2. The OSD character of sub-contrast becomes red.
2. The OSD character of sub-contrast becomes red.
(Inside under automatic adjustment)
3. The OSD character of sub-contrast returns to black.
When [NG] is displayed, adjustment failure.
4. End.
Note:
Sub-contrast adjustment is unadjusted
for AV/ HD input.
But, when needing the adjustment cho-
sen manually, please refer to [ alterna-
tive method ].
for AV/ HD input.
But, when needing the adjustment cho-
sen manually, please refer to [ alterna-
tive method ].
Steps
Remarks
Another procedure
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
And after SRQ-L, begin an adjustment 2 seconds later.
Adjustment of AV system
1. PAL 100% Full White or Split Colour bar receive AV1(or AV2), shown as below.
2. Goes into service mode.
3. Push [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].
3. Push [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].
Adjustment
1. The colour key yellow button of remote control is pushed.
2. The OSD character of sub-contrast becomes red.
2. The OSD character of sub-contrast becomes red.
(Inside under automatic adjustment)
3. The OSD character of sub-contrast returns to black.
When [NG] is displayed, adjustment failure.
4. End.
35
Steps
Remarks
Another procedure
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
And after SRQ-L, begin an adjustment 2 seconds later.
Adjustment of HD system
1. At 1080i 100% Full White or Split colour bar receive component signal, as shown below.
2. Goes into service mode.
3. Push [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].
3. Push [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].
Adjustment
1. The colour key yellow button of remote control is pushed.
2. The OSD character of sub-contrast becomes red.
2. The OSD character of sub-contrast becomes red.
(Inside under automatic adjustment)
3. The OSD character of sub-contrast returns to black.
When [NG] is displayed, adjustment failure.
4. End.
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10.1.3. THX white balance adjustment
The adjusting method is different according to the PEAKS EEPROM version.
[copy adjustment] : Peaks EEPROM ver.1.00-
[Differential (Normal) + copy + WARM adjustment] : Peaks EEPROM ver.1.**-
[copy adjustment] : Peaks EEPROM ver.1.00-
[Differential (Normal) + copy + WARM adjustment] : Peaks EEPROM ver.1.**-
Name of measuring instrument
Connection
Remarks
W/ B pattern
Color analyzer
(Minolta CA-100 or equivalent)
Color analyzer
(Minolta CA-100 or equivalent)
Panel surface
Steps
Remarks
[copy adjustment]
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
• Make sure the front panel to be used on the final set is fitted.
• Make sure a color signal is not being shown before adjustment.
• Put the color analyzer where there is little color variation.
• Make sure a color signal is not being shown before adjustment.
• Put the color analyzer where there is little color variation.
Note:
Copy Adjustment method in service mode.
When you push [OK] key in each item,
Adjustment data is copied between HD data and SD data.
When you push [OK] key in each item,
Adjustment data is copied between HD data and SD data.
Picture menu : Dynamic
ASPECT : 16:9
ASPECT : 16:9
Condition is same at
alternative method too.
alternative method too.
Click on the first or last page to see other TX-PR50VT30 service manuals if exist.