Acer AC511 SERIES 서비스 매뉴얼 - 페이지 13

{카테고리_이름} Acer AC511 SERIES에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Acer AC511 SERIES 50 페이지. Color monitor
Acer AC511 SERIES에 대해서도 마찬가지입니다: 참조 매뉴얼 (13 페이지), 서비스 매뉴얼 (50 페이지)

페이지 인쇄

All manuals and user guides at all-guides.com

6.TROUBLE SHOOTING CHART

6-1 NO RASTER, CRT RELATIVE CIRCUIT PROBLEMS

CHECK MAIN PCB POWER SUPPLY

70V, 15V, 80V

CHECK THE HIGE VOLTAGE

OF CRT ABOUT 23.5 ~ 25.5KV

CHECK THE VOLTAGE OF CRT

HEATER ABOUT 6.3V

CHECK SCREEN VOLTAGE ABOUT

400V TO 600V

LESS THAN 300V

BRIGHTNESS SET TO MAX. THEN

CHECK CRT G1 VOLTAGE

CHECK VOLTAGE OF THE CRT

CATHODE ABOUT 60V TO 70V

CHECK POWER SAVING CIRCUIT,

H-SYNC, V-SYNC SIGNAL

Q909, Q910

REFER ITEM S.M.P.S.

CHECK FAILSAFE CKT IC401

PIN 25 RELATIVE CKT.

CHECK CRT'S HEATER RELATIVE

CIRCUIT Q907, Q908

CHECK FBT

CHECK BRIGHTNESS CIRCUIT

Q703, Q704, Q705 RELATIVE CKT.

REFER ITEM 6-2

"ABNORMAL DISPLAY"