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4. ADJUSTMENT
4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS
1.
Approximately 30 minutes should be allowed for warm up before proceeding.
2. Adjustments should be undertaken only on those necessary elements since most of them have been
carefully preset at the factory.
4-2 MAIN
ADJUSTMENTS
NO.
FUNCTION LOCATION
DESIGNATION
1
TP901ADJ
PCB - MAIN
VR903
2
B + ADJ
PCB - MAIN
VR902
3
SCREEN ADJ
FLY BACK TRANS
T402
4
FOCUS ADJ
FLY BACK TRANS
T402
5
ABL ADJ
PCB - MAIN
VR701
-MENU
PCB - MAIN
SW101
- DOWN (-)
PCB - MAIN
SW102
6 FUNCTION
ADJ
- UP (+)
PCB - MAIN
SW103
4-3 ADJUSTMENT
METHOD
1. TP901, B + & HV voltage adjustment:
A. Chroma-2000 Signal generator or PC equivalent set mode 1, VGA 640
X
480 pattern 1.0 .
B. Connect a DC Volt meter between TP901 and ground, then adjust VR903 to be 13.8VDC for CPT CRT or
LPD CRT.
C. Connect a DC Volt meter between TP902 and ground, then adjust VR902 to be 62.0 VDC for CPT CRT or
LPD CRT.
2. Factory preset Timings Adjustment:
A. Press MENU Key to show OSD window press Up or Down Key to switch the functional controls.
B. Press the Up Key to select the "
EXIT
" function, then press the MENU Key. While do not release the
MENU Key until the OSD window changed to the Factory preset window.
C. The Factory preset window contains the following functional controls. Select one of the control. Then
press the Up/Down Key to adjust its value for the optimum picture.
All manuals and user guides at all-guides.com
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