Mitsubishi WS-48515 Service Manual download pdf (Page 47)

Page 47

Purpose:

Measuring

Instrument

Test Point

Measuring

Range

Input Signal

Ext. Trigger

Input Terminal

Symptom:

MODELS: WS-48515 / WS-55515 / WS-55615 / WS-55815 / WS-65515 / WS-65615 /WS-65815 / WS-73615

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Monoscope (NTSC & HD)

Video & Component Inputs

To set the height, width and linearity of the raster.

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.

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.

[Deflection Circuit]

14: Deflection Geometry

Height & Width Adjustment

CIRCUIT ADJUST MODE

Activate …….. MENU-2-4-5-7

Function …...…… …..AUD IO

Item No. ……….…….VIDEO

Adjust Data ….…….ADJUST

Save Data …. ……… ENTER

Exit …………..MENU (twice)

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Mitsubishi WS-48515 Service Manual Page 47

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