Re: Hello
Update
I found out my other UPS an "Inform GUARD" On battery pulls out 160V
What should i check ?
Venomus28
Member
Last Activity: 04-26-2017, 08:34 AM
Joined: 10-11-2016
Location: Albania
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Hello
I have a question and im sure i'd get some help on here
Recently i got a broken UPS open it up and found out the battery is bad, its a 12V and 4.5Ah
Anyone has any clue what is the max wattage this UPS can handle ?
I've checked for any label but didnt found any -
Re: Problems with Samsung 740N monitors
Change only the bulged ones, fire it up and see how it goes
My guess is a working monitor
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Re: Problems with Samsung 740N monitors
i think that the caps are bad, open it up and see for any bulged oneLeave a comment:
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Re: Problems with Samsung 740N monitors
Did a resolder and all works perfectly now.
ThanksLeave a comment:
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Re: Problems with Samsung 740N monitors
After changing both mosfets the monitor turned on and worked right for about 10 mins then it the back light turned off again
What could it be ?Leave a comment:
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Re: Asus monitor turns on and off
Yes, they turn on, when i plug the monitor on, for a couple of seconds then offLeave a comment:
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Re: Asus monitor turns on and off
Thank you i will...Leave a comment:
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Re: Asus monitor turns on and off
Its not a backlight problemLeave a comment:
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Re: Asus monitor turns on and off
So I took out both transformers and powered up the monitor, same as before. Shut down itself.
What could be ?Leave a comment:
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Re: Asus monitor turns on and off
Grazie
I've measured the 2 transformers of the inverter and one of them doesnt shows signs or life at the part pointed in red lol
I'll take it out of the board and power it up and check if the monitor goes off again...Leave a comment:
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Re: Asus monitor turns on and off
So I've tested the tubes in another monitor and they work good.
Then tried the same monitor with the tube wires not connected and the monitor turned off again.
So I think the problem is the power supply.
What should I check ?Leave a comment:
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Re: Asus monitor turns on and off
Ive inspected the tubes and all looks ok ...Leave a comment:
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Re: Problems with Samsung 740N monitors
Yes i know, can you put up a pic ?Leave a comment:
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Re: Problems with Samsung 740N monitors
Was it hard to solder the new mosfets ?
I have had 2 ,Samsung 940T and on the 1st one (im using now) i changed 3 caps and one pico fuse
and at the other one i have changed 3 caps and the pico fuse and i am waiting for the mosfets to get delivered so i can change them tooLeave a comment:
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Re: Problems with Samsung 740N monitors
Did you changed the 2 mosfets too ?Leave a comment:
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Re: Asus monitor turns on and off
I'll keep you posted, thanks friends
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Re: Asus monitor turns on and off
Thats really an idea to start on
I'll do the inspection and i'll let you know...Leave a comment:
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Re: Asus monitor turns on and off
Can you point the ones you think to work on ?...Leave a comment:
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Re: Asus monitor turns on and off
Yes i will do that for sure, but i think there is excess heat that caused that...Leave a comment:
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