Cb, Cr Offset Adjustment; Character Position - Mitsubishi VS-60609 Service Manual

MODELS: VS-45609 / VS-50609 / VS-55609 / VS-60609 / VS-60719 / VS-70709
[Cb, Cr Circuit]
13. Cb, Cr Offset
Measuring
-----
Instrument
-----
Test Point
Ext. Trigger
------
Measuring
-----
Range
Input Signal
White Raster @ 25%
Input Terminal
NTSC Input
SERVICE MODE
Activate ........ MENU-0-1-5-7
Function .................AUDIO
Item No. .................VIDEO
Adjust Data ...........ADJUST
Save Data .... .........ENTER
Exit ..............MENU (twice)
[On Screen Display Circuit]

14. Character Position

Measuring
-----
Instrument
-----
Test Point
Ext. Trigger ------
Measuring
-----
Range
Input Signal
Monoscope
Input Terminal
RF or Video
SERVICE MODE
Activate ........ MENU-0-1-5-7
Function .................AUDIO
Item No. .................VIDEO
Adjust Data ...........ADJUST
Save Data .... .........ENTER
Exit ..............MENU (twice)
To match the match grays between color and monochrome
Purpose:
pictures.
Symptom:
Grays have a color tint.
1. Supply an NTSC White Raster with 25% luminance.
2. Activate the Service Mode, VCJ Function.
3. Set the data for item "30 COLH" to 63.
4. Adjust items "23 CBOF" and "24 CROF" for optimum gray.
5. Set the data for item "30 COLH" back to 31.
6. Save the data and exit the Service Mode.
Purpose: To position the on-screen display.
Symptom:
On-screen display is not positioned correctly.
1. Supply a Monoscope signal to the Video or RF Input.
2. Select the Monoscope as the source for the main picture (Input button).
3. Activate the Service Mode, HR Function.
4. Use the Adjust Right/Left buttons to center the display horizontally.
(A = B)
5. Save data and exit the Service Mode.
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