![Acer AC511 SERIES Скачать руководство пользователя страница 7](http://html.mh-extra.com/html/acer/ac511-series/ac511-series_service-manual_6961007.webp)
6
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.
15.0V ADJ
PCB - MAIN
VR901
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
6.
SUB-BRIGHTNESS ADJ
PCB - MAIN
VR702
-MENU
PCB - MAIN
SW103
-UP
PCB - MAIN
SW104
7.
FUNCTION ADJ -DOWN
PCB - MAIN
SW103
-EXIT
PCB - MAIN
SW104
4-3 ADJUSTMENT METHOD
1. 15.0V, B + & HV voltage adjustment:
A. Chroma-2000 Signal generator or PC equivalent set mode2:, VGA 640
X
480 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.
080
FACTORY PRESET
9300 6500
H:31.6 kHz
V: 60Hz