Service manuals, schematics, eproms for electrical technicians

ACER X173W SM

MONITOR - SERVICE MANUAL
Type: (PDF)
Size
2.5 MB
Page
49
Category
MONITOR
SERVICE MANUAL
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  • Also known:
    ACER X-173W X173W 173
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  • See related repair forum topics below. May be help you to repair.
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Relevant MONITOR forum topics:
Acer V223HQ - ILPI-075 Rev.A power supply turns off
Hi, I'm sorry for writing in English, but I don't understand any single word in Hungarian and I couldn't find an English subforum there. I have changed the LVDS controller and now it's working perfectly, but I need help with the backlight. The CCFL lamps in the screen are OK. I connected the screen to another inverter (from BenQ T705, made on TL1451 which also has "protect" function) and the backlight worked perfectly. Again, I connected other screen to the malfunctioning ILPI-075 inverter and the screen also goes blank. I changed all THT electrolytic capacitors on the board, but not much has changed. Before, the backlight was turning off almost immediately, now it glows for 1-2 seconds and then turns off. The HV side of inverter transformers is about 470 ohm, they look OK. I measured random capacitor in the +16V line, which is supplying the high voltage inverters. We can see how the voltage went down while the backlight was powered on. Also, the ON/OFF signal on ICL837's pin 8 is always present after powering up the power supply, even after the backlight turns off. I don't have any idea what to check now..
Acer AL1916w monitor képernyő függőleges csíkozódással - Megoldva/ Suspended -
Üdv a lakóknak. Adott monitoron randomszerűen az alábbi hibajelenség jön elő, függőleges csíkok képében. Van amikor 2 hét, előfordult 2 óra használat után is. Egyéb esetben kifogástalan a kép, tehát nem fóliaszakadt stb. Első körben a táp nem megfelelő működésére gondolok.
ACER AL1714am
Hali! Van nálam egy ilyen monitor javítás alatt...A hibája az hogy kb 1 percig van rajta kép utána csak fekete és semmi sem jelenik meg. Valakinek van ötlete mit nézzek meg, vagy kapcs rajzot le tudok töletni valahonnan? Előre is köszi! Attila
ACER FP751 LCD Monitor
Sziasztok! Hozták javításra a fent említett monitort a hibajelenség az, hogy nem indul el.A külső DC tápja az jó,viszont amikor csatlakoztatom és meg nyomom a bekapcsoló gombját(természetesen a gombot kimérte és jó a kontakt) nem reagál mintha nem is lenne rajta táp.Még az előlapon lévő visszajelző led sem reagál,nem világít! Szétszedtem és átnéztem a panelokat de így elsőre nem találtam rajta semmi hibát.Igazán az lenne a kérdésem, hogy merre tovább?Ha van valakinek ötlete azt szívesen fogadom.Előre is köszönöm a segítséget! :beer: Üdv:morfeus
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