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MODEL: WD-57831 / WD-65831 / WD-73831
Page 38
Electrical Adjustments
Purpose:
Measuring
Test Point
Measuring
Input Signal
Ext. Trigger
Input Termi-
Symptom:
[Format Circuit]
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Internal Test Patern.
Video
To center the picture on the screen.
Picture is off center.
1. Press “MENU-2-4-5-7”, activates the Service Mode..
2. Select the “FORMAT” function (AUDIO button).
3. Press “REWIND”, activates the Overscan Test Pattern
4. Select “Item 1” HPOS (VIDEO button).
5. Use the ADJUST buttons to center the picture horizontally.
6. Press ENTER to save the new setting.
7. Select “Item 2” VPOS (VIDEO button).
8. Use the ADJUST buttons to center the picture vertically.
9. Press ENTER to save the new setting.
10. Press MENU to exit the Service Mode.
Horizont/Vertical Position
Adjustment
73” Vertical Keystone Adjustment
1) Loosen locking screws (D) through (J).
2) Adjust (A) for minimum vertical keystone
distortion.
73”Horizontal Keystone Adjustment
1) Loosen locking screws (D) through (J).
2) Adjust (B) for minimum horizontal keystone
distortion.
NOTE:
If the picture position shifts during mechanical adjustments perform the following positioning
adjustments.
After adjustment...
Tighten the locking screw in the following order D-E-F-G-H-I-J.
Содержание WD-57831
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Страница 29: ...MODEL WD 57831 WD 65831 WD 73831 Page 29 73 Models Lamp Lamp Control Circuitry ...
Страница 53: ...Page 53 MODEL WD 57831 WD 65831 WD 73831 MAIN POWER SUPPLY ...
Страница 55: ...Page 55 MODEL WD 57831 WD 65831 WD 73831 POWER DISTRIBUTION ...
Страница 56: ...MODEL WD 57831 WD 65831 WD 73831 Page 56 PWB SIGNAL VIDEO PATH ...
Страница 57: ...Page 57 MODEL WD 57831 WD 65831 WD 73831 PWB DM Video Path ...
Страница 58: ...MODEL WD 57831 WD 65831 WD 73831 Page 58 Sound Select Circuitry ...
Страница 59: ...Page 59 MODEL WD 57831 WD 65831 WD 73831 Sound Signal Path ...
Страница 60: ...MODEL WD 57831 WD 65831 WD 73831 Page 60 Overall Control Circuitry ...
Страница 61: ...Page 61 MODEL WD 57831 WD 65831 WD 73831 Command input Circuit ...
Страница 62: ...MODEL WD 57831 WD 65831 WD 73831 Page 62 Lamp Control 57 65 Models 57 65 Engine Protect Cricuitry ...
Страница 63: ...Page 63 MODEL WD 57831 WD 65831 WD 73831 Lamp Control 73 Models 73 Models Engine Protect Circuitry ...
Страница 64: ...MODEL WD 57831 WD 65831 WD 73831 Page 64 Auto Input Detection ...
Страница 65: ...Page 65 MODEL WD 57831 WD 65831 WD 73831 Short Protect Circuit ...