Service manuals, schematics, eproms for electrical technicians
TRL-17 2
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MONITOR
EPROM
MONITOR
EPROM
If you get stuck in repairing a defective appliance download this repair information for help. See below.
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Good luck to the repair!
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- Also known:
TRL-17 TRL17 TRL 17
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Relevant MONITOR forum topics:
Üdvözletem!
A tárgyi monitor csak 12 bites üzemmódban hajlandó képet adni. Merre induljak el hibát keresne? Pali
Előre is koszi a segítséget.Pali
Sziasztok.
Szeretnék egy kis segítséget kérni.
Ilyama Prolite E431S monitor tápegység panelen a kimenő áramot,illetve a bekötését ha tudná valaki,és segítene egy kicsit,azt nagyon megköszönném.
CN102 csatlakozó,1-12ig.8,9,10,11 nincs bekötve.
Szívességeteket előre is nagyon köszönöm.
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..
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..
Üdv
Most javítottam egy fent nevezett monitort.Inverterébe a mosfetek zárlatosak voltak cseréltem őket és a körülötte lévő és a tápba lévő összes elkót is.Az inverterbe van 3db smd bizti ebből kettő szintén szakadt volt,átkötöttem őket provizor szépen megy(müködik) a készülék.A biztik helyett mekkorát tegyek bele,rajtuk nincs felirat,a panelon sincs semmi mellette.Doksit letöltöttem,inverterről nincs semmi benne csak a komplett panel típusa.
Melléklem a fotót az inverterről.
tipusa:TDK TDB292LF rev1.0
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