Pip Adjustments - Mitsubishi VS-60609 Service Manual

MODELS: VS-45609 / VS-50609 / VS-55609 / VS-60609 / VS-60719 / VS-70709
[Video Circuit]
11. Sub Contrast
Measuring
DC milliammeter
Instrument
+ DT #3
Test Point
- DT #1
------
Ext. Trigger
Measuring 3 MA
Range
Input Signal
Grayscale
Video Input
Input Terminal
SERVICE MODE
Activate ........ MENU-0-1-5-7
Function .................AUDIO
Item No. .................VIDEO
Adjust Data ...........ADJUST
Save Data .... .........ENTER
Exit ..............MENU (twice)
[PIP Circuit]
12. Color and Tint
(PIP Insert Picture)
Measuring
-----
Instrument
-----
Test Point
Ext. Trigger
------
Measuring
-----
Range
Input Signal
Color Bars
Input Terminal
Video or RF Input
SERVICE MODE
Activate ........ MENU-0-1-5-7
Function .................AUDIO
Item No. .................VIDEO
Adjust Data ...........ADJUST
Save Data .... .........ENTER
Exit ..............MENU (twice)
To set the beam current to its' optimum level.
Purpose:
Excessive or insufficient contrast.
Symptom:
Note: This adjustment must follow the Black Level Adjustment.
1. Supply a Grayscale signal to the Video Input.
2. Enter the Service Mode, VCJ Function.
3. Select Item "1 SCT", before going to Step 4.
4. Connect the DC milliammeter to the DT connector.
• Positive lead to pin 3
• Negative lead to pin 1
5. Adjust Item "1 SCT" to set the total CRT current value to 860 ±15ua.
6. Disconnect the meter.
7. Save data and exit the Service Mode.
To match the main and sub pictures color.
Purpose:
Different color between the main and sub pictures.
Symptom:
1. Supply a Color Bar signal to the Video or RF Input.
2. Select the Color Bars as the source for the main picture (Input button).
3. Activate the single insert PIP mode .
4. Select the Color Bars as the PIP source.
5. Exit the PIP mode (PIP button)
6. Enter the Service Mode, PIP Function.
7. Select Item "3 SCL1" (the single insert is displayed)
8. Use Items "2 CSAT" and "1 HUE" to match the color of the sub picture to that
of the main picture.
9. Save data and exit the Service Mode.
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