Question about Acer AL1717 17" LCD Monitor
Look for bad caps as shown in my pictures here: Basic LCD monitor and TV troubleshooting guide: Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Make sure to replace them in a set with low ESR type 105c caps.
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Basic LCD monitor and TV troubleshooting guide:
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Posted on Mar 16, 2011
First, check the power cord is tight in the monitor, and in the outlet or power bar. If it's in a power bar, make sure the power bar is turned on and doesn't have a tripped breaker.
If that all looks good, then there's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for 5 mins, then try.
If you aren't tech savvy, this unit needs to go in for repair.
If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering).
Most of the caps that go are 10V 1000uF or 3300uF.
I found some great videos of the procedure (for different brand, but same issue) on youtube.
As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.
Posted on Mar 12, 2011
This is a very common problem with the monitors, the Acer has a power supply problem, often caused by bad capacitors that sometimes bulge at the top indicating they are open. I have found that one bad capacitor on the power supply board will shut it down. The unit will need to be dis-assembled carefully to access the board and the parts replaced.
Posted on Mar 12, 2011
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Posted on Jan 02, 2017
SOURCE: LCD Monitor needs repair
I used to repair LCD monitor from
Dell. It works for me. You might be using these following steps to examine what is the problem of your LCD monitor. After you turned PC on and monitor stopped working or
went black, you have to check that if you can see the image on the screen or not
by shining a flashlight into the screen, not directly but find the best angle
to the screen and take a look very closely. If you can see the icons or any
image (Start menu), there will be a minor problem. This is because of CCFL
lamps inside screen. Some of them were broken and it is very easy to replace. You don't need to do anything with the inverter board in this case.
If you cannot see anything on the screen, there'll be some problems with
inverter board. Hope this help!! If anything I can
help you with, feel free to let me know.
Posted on Mar 18, 2008
Aside from the capacitor and IC, there's a relay that you need to change. You need to locate that defective relay on the PCB and replace it.
It would be best to consult the manufacturer of the LCD and get the exact part number of it.
Have a great day!
Posted on Apr 26, 2009
SOURCE: my lcd monitor AL1717 has
Power off your computer and remove the smps 24 pin connector to the motherboard and short the green and black pin and see if the SMPS is working if not replace the smps.
Remove memory from the memory slot and switch on the computer if you hear beeps clean the memory or change it with new one that fixes the memory slot
If no beeps by removing the memory then remove the processor fan and clean it with soft cloth and apply thin layer of heat sink compound and switch on the computer
If you still not hear the beeps then change the processor
If still no beeps take the motherboard to a chip level Technion the secondary power supply or the clock,reset etc in the mother board has gone wrong or not producing them
Posted on Apr 01, 2011
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