Re: Benq Q7T4 (FP71G)
Hmmm, will try, thanks.
Notherbast
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Last Activity: 03-20-2009, 03:44 PM
Joined: 03-01-2009
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Re: Viewsonic - VA1912w-3
PSU is good, as it works perfectly for 3 days now in another monitor... checked all smd fuses, all good...
Guess a little more time with the meter is called for.
Cheers.Leave a comment:
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Re: Benq Q7T4 (FP71G)
okay.. Partial success.. the backlights now turn on (got the 2sc's today) and then the monitor just kind of "pixelates" and fades off..
Am recapping the rest of the board now, but anyone got any ideas on what else could cause it ?Leave a comment:
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Viewsonic - VA1912w-3
I dont know how i seem to have gotten conned into fixing all these LCD @ the moment but anyway...
Still waiting for parts on the Benq, but heres another one..
Viewsonic, nothing but a white screen. had 2 of them, 1 with dud caps, and the other one a white screen. .Swapped the white screen PSU into the other and its all good. So, it looks like the video board is having trouble. All SMD(on the video board), so no bulging or anything. Connectors are good, all clean, no bad joints, reseated cables but no joy.
Any ideas? been over with the glass looking...Last edited by Notherbast; 03-18-2009, 05:48 PM. -
Re: Benq Q7T4 (FP71G)
Sorry for my delay in replying to you all...
I have ordered new 2sc5707's and will replace them when they arrive, also have new cap waiting to drop in.
Will let you know the result when i fire it up.. Thanks to all who offered help..
eguevarae, As for the PS2's... PM me ad i'll see what i can help you with
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Re: Benq Q7T4 (FP71G)
Yes it powers up, has a "bloom" of light which disappears in 1 - 2 seconds, power light stays on, so i think the only real problem is the Inverter portion, TBH, i never looked at the others to see if they had the PicoFuses fitted or the links..
Unfortunately, the others i did have all gone back and be re-inserted into the "array" (there are 10 of them total, used for monitoring camera's throughout a factory.)
This was given to me to fix after the rest were done, otherwise i could compare them with each other....Leave a comment:
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Re: Benq Q7T4 (FP71G)
Sorry for the delay.
This is the state when i opened the machine, has already had a few caps replaced judging from the repair stickers on the back.
As said, ANY help is appreciated.
Cheers....Leave a comment:
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Re: Benq Q7T4 (FP71G)
Done, they be up today...Leave a comment:
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Benq Q7T4 (FP71G)
Hi guys, just done 5 of these today, all with dud caps @ c703, c704, c707, c708, c709 and c712 - or a mixture thereof.
This last one is different, it has burnt[B] through[/B], C824.
Now, as a relative 'Noob', i'm not to sure what else would have been stressed and what i should replace as a "precautionary" measure in that part of the board.
Have found lots of mention re: C826 and such.. but nothing on this one.
Cheers, and thanks for any help you may offer.
David.Hi guys, just done 5 of these today, all with dud
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