Question about Acer AL1713 17" LCD Monitor
My AL1713 doesn't work; power-LED flashes on and off every few seconds. No backlight.
I did measure power inside, and 5V/12V switches on and off all the time.
After disconnecting the power board from the other boards power is stable and OK.
I have schematics of AL1701, but AL1713 is different
Who has a AL1713 schematic, of know what could be the cause of this error?
Check out above link for AL1713 schematics and service guide.
Based on your explanation it seems you have some shorts problems with the other board.
Posted on Aug 15, 2017
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Posted on Jan 02, 2017
Hi - I've just fixed ny AL1921 which would be similar to yours internally. There are a couple of issues which are common:
Bad soldering around some of the copper coils (insulation may not have been properly stripped and leads to intermittent connection and (much more likely)
If you have ANY electrolytics on the main board which are swollen at the top or have electrolyte oozing out of them at the top or where they meet the board, then replace them.
My ACER started flickering and switching off randomly (no power light on the front either) and I though the power supply inside was toast. However, I found two electrolytics on the large power board (1000u / 16v) which had a black crust at the top. I replaced these and the monitor sprang back into life. Try to use replacements which have a temperature rating of 105 degrees C. Basically I think these things give out just after the guarantee runs out.
Hope that works for you.
Posted on Sep 21, 2009
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