Re: Vizio VP322 - no power, blown resistor and fuse
i know ,,,ive been trying to find the way to post a new thread
i know ,,,ive been trying to find the way to post a new thread
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Re: Vizio VP322 - no power, blown resistor and fuse
Try this https://www.badcaps.net/forum/newthr...newthread&f=31Comment
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Re: Vizio VP322 - no power, blown resistor and fuse
Just checked all green resistors, most of them unsoldered because they didnt read right on board - all tested good. I guess, only option left is to order another YSYS, or there something else can be tested? I tested some caps too - they all OK.Comment
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Re: Vizio VP322 - no power, blown resistor and fuse
Had it running for couple hours to check power board - after it got warmed up really good, those grains almost disappeared - still slightly noticeable, but only if you know what you are looking for. With regular TV/Movie play I dont see it even if I try, but I can see few (VERY few, not as many like on cold screen) when HDMI square goes away on input change or when it plays white titles on black background but I need look very close to notice it.
I wonder if it helps to diagnose problem? Or confirms that YSYS should be replaced?Last edited by sansonet; 03-20-2015, 08:48 PM.Comment
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Re: Vizio VP322 - no power, blown resistor and fuse
I just got another YSYS board I bought and turned out there is problem with replacement board - when I turned TV on, amber standby light turned to white like when it's coming on, but nothing else. I looked more closely on board, and even if it was listed as EBR39731301 part and posted pics showed the same sticker - board they send is EBR43988401 and definitely not the one they described and posted pics of!
It looks identical to mine, but apparently something is wrong with software or board itself is bad? I will contact seller for explanation, but meanwhile, is there anything I can do to make replacement board useful?
Also, is there any dander to damage other parts with this board installed?
This is my board http://www.shopjimmy.com/lg-ebr39731301-ysus-board.htm
And this is one they sent http://www.shopjimmy.com/lg-ebr43988401-ysus.htm
(I bought it not from shopjimmy, links just for reference)Last edited by sansonet; 03-28-2015, 01:30 PM.Comment
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Hello guys
Taking a look at some KNX domotic modules that were toasted due to some kind of electrical failure, I found out 2 weird looking resistors.
Seem to me like some kind of fuse resistor?
After diggin a bit seems like a fuse wirewound resistor wafer or whatever that is
They are very toasted but I think the 5 band colours are RED GOLD BLACK ORANGE ORANGE or the opposite, not sure which is the first band.
The red band is larger than the 4 others, but I dont have much experience with these components.
Also one of the orange... -
I found a project in the electronics trash yesterday. A nice Argon SA1 audio amp with some electrical issue. Took it apart and saw that the 4A250V fuse was blown so started lifting components to find the short. Eventually got to two MOSFETs (model FTA14N50C) that are shorted and when i took them out the short was gone.
Now i didn't have any replacements of the same model of course but i found a couple with pretty similar spec i thought (K10A60D & K12A50D) and put them in. Also replaced the blown fuse with a 3.5A250V one. Checked another time for short circuit and plugged it in.... -
I gotten a Carver CM-1090 amplifier from a friend who has kept it in storage for decades. Opened it up, thick layer of dust cumulated everywhere. Vacuumed it semi-cleaned, and blown off as much as possible the remaining dust. This is a 220V version.
On initial powered up with nothing connected - it works with all the lights and button indicator lit up as pressed, etc. I then powered off, connected a CD player into the CD RCA input and powered it on. It seemed to work for a short while and when I turned the volume up and down to see the the VUs works, the power started to clicked off... -
Hi All,
I have a UE32ES6540 which is dead, customer reported a pop and a puff of smoke. PSU is BN44-00517C and has blown 221k 1KV cap, next to this a blown resistor RM811. Board mains fuse is blown.
Has anyone seen this problem and will changing the cap, resistor and fuse likely fix it? One more ask, can anyone give me a 2nd opinion of this resistor rating of RM811? I think it's 0.24 Ohms but would like a 2nd opinion! See attached pic.
Thanks!
Bob... -
Hi I wonder if anyone might be able to steer me in the right direction. I have this Samsung UE46ES8000 TV and it went bang during use. The main fuse on the PSU board is open. I've checked every diode/mosfet/transistor I can see and nothing appears to be short to cause the fuse to go. The DC output of the bridge rectifier is not short either. I've seen online that some of these models are known for having their PFC mosfet or other mosfets shorting and blowing the fuse but i'm not seeing that here. If anyone aware of these models having any issues to cause this? I'm reluctant to just replace the...
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