I need acer al 1715 inverter board schematic diagram so i can get the burning zener value any help please

have you repaired the component that burned these resistors out? if not then you cannot replace them as they will just cook again.

It is very difficult to give you the exact voltage of the zener diodes you're discussing here; as there is no other details about the position or part number of them at the circuit board. If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Schematic diagrams to SMPS power supplies to many popular brand TVs and other devices are given. Refer it please. Hope; it will help you to check it out.

Please try looking at these service manuals: http://elektrotanya.com/?q=showresult&megnev=Acer&megnev2=AL1916W&kategoria=monitor&kat2=schematics

You need to get a service manual, this has all servicing information, including, the schematic diagram too, this will have values, for all components.
It could be a Zener, of almost any voltage, within a range, or a shottkey diode, a signal diode, or a flywheel diode.

http://www.go-gddq.com/upload/2009_08/09081816054725.pdf

Let me know if this helps you..

Please take time to vote a thumbs-up :)

sbra454016, Monitor has internal problem on "switch-mode-power-supply/ccfl inverter supply" printed circuit board. Check smps/ccfl supply board. Read my fixya profile to understand problem or skip the reading and trade-in for new wide screen unit. Reading is free. 12fixlouie

<p>How about the whole <A href = "http://www.go-gddq.com/upload/2009_06/09060313346662.pdf">Service Manual</a> ?</p?

I have an Acer 1715 that also turns on, then goes dark after a few seconds. The capacitors on the AR577 supply/inverter board were good, but I replaced them anyway. There is a good write-up with photos at:

http://www.electronicrepairguide.com/acer-al712-lcd-monitor-repair.html

This shows the board nicely and capacitors for the 1712 Acer, which is very close to the 1715.

This didn't cure my problem, and after chasing signals, I believe the problem is a bad inverter chip. The SG6841SZ on the back side of the board is a 20 pin gull wing surface mount package that drives the FETs to switch voltage off and on to the high voltage transformer. I know the diodes and FETs work because it comes on. The transformer drive stops when the backlights go out, though the voltages are all there. The 5V drive signal from the control board is there, so the problem has to be the inverter, or all 4 FETs.

If I can get hold of the part and it fixes it, I'll post it here.

lcd no brightness