MITSUBISHI WT42313
Service Manual

MODEL: WT-42313 / WT-42413
[Convergence Circuit] 16. Centering and Static Convergence
Measuring Instrument Test Point Ext. Trigger Measuring Range Input Signal Input Terminal -----------------NTSC -- Monoscope HD -- Monoscope Video & DTV Inputs

Purpose: Symptom:

To converge red, green and blue at the center of the screen Color edging over the entire picture.

Preliminary Degauss the shield cover and bracket unit of the CRT assembly and chassis. DO NOT degauss the CPM Assemblies. HD mode 1. Supply an HD Monoscope signal to the DTV Inputs. 2. Select the DTV Inputs as the signal source (Input button). 3. Enter the Convergence Coarse mode. 4. Set the data for the �HSTA� and �VSTA� items to: GREEN RED BLUE HSTA = 0 HSTA = 50 HSTA = -50 VSTA = 0 VSTA = 0 VSTA = 0 5. In the Coarse Green mode: � Center the Green Raster using the Green Centering Magnet. � Rotate the Green Deflection Yoke to correct any tilt. 6. In the Coarse Red mode, use the Red Centering Magnet to converge red on the green at the center of screen. Correct any red tilt with the Red Deflection Yoke. 7. In the Coarse Blue mode, repeat Step 6 using the Blue Centering magnet and the Blue Deflection Yoke. 8. Exit the Convergence mode. SD mode 1. 2. 3. 4. 5. Supply an NTSC Monoscope signal to a Video Input. Select the Monoscope as the signal source (Input button). Enter the Convergence Coarse Green mode. If needed, center the green raster using �1 HSTA� and �2 VSTA� adjustments. In the Coarse Red mode, use �1 HSTA� and �2 VSTA� adjustments to converge the red on the green at the center of the screen. 6. In the Coarse Blue mode, repeat step 5 to converge the blue of the green. 7. Exit the Convergence Mode

CONVERGENCE MODE Activate ��..MENU-0-3-5-9 Misc. ������.��"6" Coarse������..�."5" Fine ��������..."4" Color (R,G or B)��AUDIO Item No����.�..VIDEO Adjust/Move���.ADJUST Cursor Toggle�.�..ENTER Save & Exit�..MENU (twice)

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