Mitsubishi ws-48413 Service Manual download pdf (Page 35)

Page 35

Purpose:

Measuring

Instrument

Test Point

Measuring

Range

Input Signal

Ext. Trigger

Input Terminal

Symptom:

Purpose

Measuring

Instrument

Test Point

Measuring

Range

Input Signal

Ext. Trigger

Input Terminal

Symptom:

MODELS: WS-48313 / WS-48413 / WS-55313 / WS-55413 / WS-65313 / WS-65413

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Video Signal (HD/NTSC)

ANT-A/DTV

[On Screen Display]

12.Character Position

To position the character display horizontally.

Incorrect display position

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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Monscope & Crosshatch

Video Input

[CRT Circuit]

11. Electrostatic Focus &

(Alignment Magnet)

To set electrostatic focus to the optimum point.

Poor focus.

Note: This adjustment must be performed after the Sub Contrast adjustment.

Alignment Magnet Adjustment (WS-48413, WS-55413 and WS-65413 Only)

This adjustment must be performed before Static Focus Adjustment

1. Set the display to the Standard mode (Format button)

2. Supply a Crosshatch with Center Dot signal to a Video Input.

3. Select a Green raster using the table below.

4. Roughly adjust Green Focus VR.

5. Rotate Green Focus VR CCW so the center dot is about 10mm diameter.

6. Adjust the Green 4 Pole Magnet for the roundest center dot.

7. Set the Green Focus VR for optimum focus.

8. Repeat the procedure with a Red raster and adjust the Red 4 Pole Magnet.

9. Use silicon to lock the magnets in place.

Static Focus Adjustment (All Models)

1. Supply a Monoscope signal to a Video Input

2. Activate A/V Reset

3. Select Red, Green or Blue rasters using the table below.

3. Set the Red, Green and Blue Focus VRs for optimum focus at the top center of

the picture..

Raster Color Selection

Color Raster Activation Code

Red MENU-0-3-5-9-1

Green MENU-0-3-5-9-2

Blue MENU-0-3-5-9-3

CIRCUIT ADJUST MODE

Activate …….. MENU-0-3-5-7

Function …...………..AUDIO

Item No. ……….…….VIDEO

Adjust Data ….…….ADJUST

Save Data …. ………ENTER

Exit …………..MENU (twice)

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Mitsubishi ws-48413 Service Manual Page 35

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