Adjustment; Adjustment Conditions And Precautions; Main Adjustments; Adjustment Method - Acer AC511 Series Service Manual

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
1. 15.0V ADJ
2. B + ADJ
3. SCREEN ADJ
4. FOCUS ADJ
5. ABL ADJ
6. SUB-BRIGHTNESS ADJ
7. FUNCTION ADJ

4-3 ADJUSTMENT METHOD

1. 15.0V, B + & HV voltage adjustment:
A. Chroma-2000 Signal generator or PC equivalent set mode2:, VGA 640X480 pattern 1.0 .
B. Connect a DC Volt meter between TP901 and ground, then adjust VR901 to be 15.0VDC.
C. Connect a DC Volt meter between TP902 and ground, then adjust VR902 to be 87 VDC.
2. Factory preset Timings Adjustment:
A. Press Encoder control Key to show OSD window then press again to switch the functional controls.
B. Select to the "ZOOM" function, then press the button While do not release 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 to adjust
its value for the optimum picture.
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4. ADJUSTMENT

-MENU
-UP
-DOWN
-EXIT
FACTORY PRESET
H:31.6 kHz
9300 6500
080
6
LOCATION
PCB - MAIN
PCB - MAIN
FLY BACK TRANS
FLY BACK TRANS
PCB - MAIN
PCB - MAIN
PCB - MAIN
PCB - MAIN
PCB - MAIN
PCB - MAIN
V: 60Hz
DESIGNATION
VR901
VR902
T402
T402
VR701
VR702
SW103
SW104
SW103
SW104