Convergence Geometry Adjustments - Mitsubishi WS-48515 Service Manual

MODELS: WS-48515 / WS-55515 / WS-55615 / WS-55815 / WS-65515 / WS-65615 /WS-65815 / WS-73615
[Convergence Circuit]
15. Convergence Geometry
Adjustment
Measuring
-----
Instrument
Test Point
------
------
Ext. Trigger
Measuring
-----
Range
NTSC -- None
Input Signal
HD -- HD sync
Input Terminal Video & Component Inputs
CONVERGENCE MODE
Activate ... .....MEN U-2-4-5-9
Mis c. ......... ......... .... ..."6"
C oars e... ......... ............"5"
Fine ......... ............ ......"4"
C olor (R ,G or B)...... AUD IO
Item No...... ............VIDEO
Adjus t/Move...... ....ADJUST
C urs or Toggle.........EN TER
Save & Exit.....MEN U (tw ice)
Purpose:
To set the Convergence circuit geometry adjustments.
Symptom:
Raster distortion at the top, bottom or sides of the picture.
Note: Deflection Circuit Geometry must be performed before this adjustment.
Note:
Always use the Standard Format when aligning Geometry and Convergence.
NTSC mode
1. Select a Video Input with no signal.
2. Activate the Convergence Mode, Coarse Green.
3. Adjust the Coarse Green Items shown below for straight crosshatch lines.
4. Select the Fine Green Mode, a Cursor is displayed on the crosshatch.
5. Use the Cursor to adjust for straight crosshatch lines.
6. Exit the Convergence Mode.
HD mode
1. Supply horizontal and vertical HD sync to the Components Input and select the
Component Inputs as the source.
3. Repeat NTSC Steps 3 through 6 from NSTC mode above in HD mode.
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