MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
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Purpose:
Measuring
Instrument
Test Point
Measuring
Range
Input Signal
Ext. Trigger
Input Terminal
Symptom:
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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
HSTS = 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. Supply an NTSC Monoscope signal to a Video Input.
2. Select the Monoscope as the signal source (Input button).
3. Enter the Convergence Coarse Green mode.
4. Confirm that the Green Raster is centered.
[Convergence Circuit]
20. Centering and Static
Convergence
NTSC -- Monoscope
HD -- Monoscope
Video & DTV Inputs
CONVERGENCE MODE
Activate ..MENU-0-1-5-9
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)
Summary of Contents for WS-55859
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Page 61: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 61 STANDBY SUPPLIES REGULATOR ...
Page 62: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 62 SWITCHED SUPPLIES REGULATOR ...
Page 63: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 63 DM POWER SUPPLY ...
Page 64: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 64 VIDEO COLOR A V SWITCH CIRCUIT ...
Page 65: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 65 PCB SIGNAL Y C PATH ...
Page 66: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 66 SYNC PATH ...
Page 67: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 67 DEFLECTION CIRCUIT X RAY PROTECT ...
Page 68: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 68 SOUND CIRCUIT ...
Page 69: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 69 CONVERGENCE CIRCUIT ...
Page 70: ...MODELS WS 55859 WS 55909 WS 65869 WS 65909 WS 73909 Page 70 CONTROL CIRCUIT ...
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