Question about AcerView 78ie 17" CRT Monitor
Hi I would like to appreciate for your help I have got an Acer monitor model G781 CRT Type its switching power supply is not starting 300 volt supply is ok , Q602 (2SK1940 )& ic 601 (UC3842)have been changed with new one, switch transformer is ok .but it does not start . still I have no schematic diagram to trace & trouble shoot . any kind of help will be usefull .
I have a samsung make 29" monitor and at start up its normal but after few minints the picture is starts flickering and increase gradually and after almost 15min all screen goes spraded that even cant c the pic, please help for the same
Posted on Sep 15, 2008
MONITER DELL 17 D1028LR R3550
Posted on Jul 10, 2008
I bought lg 17"monitor on last year but now i am having problem my monitor does not getting the power to strart
Posted on Apr 11, 2008
Replace the main board to solve problem
Posted on Jan 31, 2008
The mains switch is a weak link on these, check this first. Also 1 of 2 33K 2W startup resistors in PSU goes o/c, check with DVM or if you have very high volts on main primary res cap this usually indicates a 33K has gone - change both. I've also had a small TO92 transistor hanging off the UC3842 failing causing no startup. A s/c HOT normally causes a blinking LED. note that AC cap IS charged, DISCHARGE BEFORE WORKING ON IT! Did you check for shorts in the secondary side of the p/s, horiz output? If there are none , look for the switching regulator. Check the support components. I've seen these with open solder connections on the coils in the PS due to that abominable glue they use...you'll see signs of burning/arcing on the inside of the cabinet, too. Good luck
Posted on Apr 11, 2006
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Sep 06, 2014 | Dell UltraSharp 2405FPW 24" Flat Panel LCD...
Nov 07, 2013 | Acer S202HL LCD Monitor
Nov 30, 2012 | Acer AL1711 17" LCD Monitor
Jul 19, 2012 | Samsung 793S 17" CRT Monitor
Nov 29, 2011 | Acer AL2016W 20" LCD Monitor
Apr 05, 2010 | Acer AL1916W 19" LCD Monitor
Jan 16, 2008 | Acer AC711B 17" CRT Monitor
Apr 17, 2006 | AcerView 78ie 17" CRT Monitor
1,805 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: