Coarse Convergence 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]
17. Coarse Convergence
Measuring
-----
Instrument
Test Point
------
------
Ext. Trigger
Measuring
-----
Range
NTSC -- None
Input Signal
HD -- HD sync
Input Terminal
Video & Component Input
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)
To converge red and blue on green at the edges of the
Purpose:
screen.
Color edging at the top, bottom and sides of the screen.
Symptom:
Note:
Always use the Standard Format when aligning Geometry and Convergence.
SD mode
1. Select an External Input with no signal.
2. Activate the Convergence Mode, Coarse Red.
3. Adjust the Items shown below to converge the red on the green.
4. Select Coarse Blue mode.
5. Adjust the Items shown below to converge the blue on the green.
Note: If center convergence shifts, use red and blue Items "0 HSTA" and
"1 VSTA" to correct the shift.
6. Exit the Convergence Mode.
HD mode
1. Supply horizontal and vertical HD sync to the Component Input and select the
Component Input as the source.
2. Repeat SD Steps 2 through 5 in the From the SD mode in HD mode.
3. Exit the Convergence mode.
Page 50