Deflection Geometry Adjustments - Mitsubishi WS-48515 Service Manual

MODELS: WS-48515 / WS-55515 / WS-55615 / WS-55815 / WS-65515 / WS-65615 /WS-65815 / WS-73615
[Deflection Circuit]
14: Deflection Geometry
Height & Width Adjustment
Measuring
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Instrument
Test Point
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------
Ext. Trigger
Measuring
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Range
Input Signal
Monoscope (NTSC & HD)
Input Terminal Video & Component Inputs
CIRCUIT ADJUST MODE
Activate ........ MEN U-2-4-5-7
Function ... ......... .....AUD IO
Item No. ...... ...........VIDEO
Adjus t Data ...........AD JU ST
Save Data .... ......... ENTER
Exit ......... .....MEN U (twice)
Purpose:
To set the height, width and linearity of the raster.
Symptom:
Incorrect height, width and/or linearity.
Note:
Always use the Standard Format when aligning Geometry and Convergence.
Preliminary:
1. DO NOT change the initial values for "#8 VLIN" in the CRT-JUNGLE Function.
2. DO NOT exceed the following VHGT adjustment ranges:
NTSC ... from -4 to +10
HD ... from -10 TO +5
NTSC Mode
1. Supply an NTSC Monoscope signal to a Video Input.
2. Select the Monoscope as the signal source.
3. Activate the Adjustment Mode, CRT-JNGL Function.
4. Select and adjust each of the following items.
• "7 VHGT" ... so the vertical marker sum = 4
• "1 HWD" ... so the horizontal marker sum = 7
5. Save data and Exit the Service Mode.
HD Mode
1. Supply an HD Monoscope signal to the Component HD Inputs.
2. Select the Component Inputs as the signal source (Input button)
3. Activate the Service Mode, CRT-JNGL Function.
4. Select and adjust each of the following items.
• "7 VHGT" ... so the vertical marker sum = 2
• "1 HWD" ... so the horizontal marker sum = 5
5. Save data and Exit the Service Mode.
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