Service manuals, schematics, eproms for electrical technicians

ACER BV203H SM

MONITOR - SERVICE MANUAL
Type: (PDF)
Size
2.8 MB
Page
85
Category
MONITOR
SERVICE MANUAL
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  • Also known:
    ACER BV-203H BV203H BV 203
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Relevant MONITOR forum topics:
Acer AL1716s
Üdvözlök Mindenkit! A címben jelzett monitor tápegységében a primer oldalon lévő 6 lábú TO-220 tokozású IC-nek lerobbant az eleje. Valaki meg tudná mondani mi a típusa? Előre is köszönöm. Üdv.: Gyula
ACER AT1919D tv/monitor nem indul...
Üdv Kollegák! A cimben levő tv/ monitor -ról keresek valami használható doksit. Teljesen halott még a st-by led sem világit, a tápja megy, sec. feszek kicsit érdekesnek tünnek de sajnos nem tudom mi lenne a helyes, rajz hiányában. IPS penel van benne, az inverterhez 20v, a mainboard-hoz 7,5 és 3,2 volt megy át .A main-on levő stab tokokon már olyan feszeket mérek (talán) amennyinek lennie kellene. Csak az IPS panelon találtam használható tipusszámot:TU08Q145 Köszönettel: Csinti
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 1916WA monitor képhiba miatt letilt
Sziasztok! Acer 1916WA monitoron az alábbi kép látszik pár pillanatra, majd letilt. Szerintem T-con, vagy kijelzőhiba, ami az eredmény tekintetében majdnem mindegy. Jól látom, vagy tévedek, és van más megoldás? Köszönettel Attila Ui.: A második kép nem tudom, miért kék, ugyanazzal az eljárásal, ugyanúgy készült. A lényeg: a kép felső része fehér, ott csak halvány pirosas csíkok látszanak függőlegesen.
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