Re: Help identifying a chip
Bad reading from drain to ground. But, if I change the mosfet, all readings are fine until I try power it up.
I'll power up the card, my pci post card will give an unrecognised pci-e device code and it won't boot. When I remove the card again and test the new mosfet which was showing as fine prior to powering it up, the mosfet shows as bad again.
I can only conclude that it has to be driver related which is what lead me to those.
Am I right in assuming that provided the replacement driver has 02= printed on...
quiggy
Senior Member
Last Activity: 12-23-2021, 06:44 AM
Joined: 08-25-2014
Location: Barnsley
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Re: Help identifying a chip
I've been searching for a while. I think it's the fact it has an = sign on the chip that throws off the search results.
It's from a gtx 980, I'm fairly sure the gpu is good but it's not recognised in the pci slot and I'm getting a bad reading from a mosfet. Took the mosfet off and still get the bad reading on just the pad so I'm assuming its the driver for that mosfet thats gone bad but finding one is impossible!Leave a comment:
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Help identifying a chip
Hopefully this is the right place to post this.
I've been searching for days trying to find out what this chip is called. I know what it does but searching to buy a replacement is impossible, could anyone help me in identifying it so I can buy replacements?
It's a driver that powers mosfets on a graphics card and that's all I know about it. Any help would be appreciated I've attached a picture of it.... -
32lg3000 intermittent display
Hey guys I Have a 32lg3000 tv which appeared to work until after an hour or so I turned it off and turned it back on the red light blinked through the motions and went blue but no sound or picture.
Now everytime i press the power button and it starts blinking i know if its going to come on or not because when its going to there is noise coming from the transformer and when its not going to come on its silent.
Ive changed all the caps on the psu apart from the 2 large ones because i didnt have any to hand but they appear fine visually just like the rest did but its... -
Re: Phillips 47pfl7642d/05
I replaced the t-con and the problem still remains, there is some red pixels I've noticed in the bottom left corner though, not sure what this could mean.Leave a comment:
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Re: Phillips 47pfl7642d/05
I've not replaced the main AV board because there were sound so I assumed that would be ok.Leave a comment:
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Re: Phillips 47pfl7642d/05
Could the control board cause the same symptoms as the t-con? There's sound and backlight just no pictureLeave a comment:
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Re: Phillips 47pfl7642d/05
I thought as much but thought I'd ask, I'll replace them anyway and move on to that t-con when I finally manage to get to it, it's under the metal plate which every other board is screwed to, wonderful.Leave a comment:
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Phillips 47pfl7642d/05
I have a quick question, I have a Phillips 47pfl7642d/05 with sound, backlight but no picture.
I thought it could be t-con and I've not even got as far as taking it out, but I noticed that the slave inverter board has 2 blown caps with clear indications they they're both gone (2 x 35v 680uf). Now, these being blown won't have any affect on the picture being displayed would it? they just control the backlight? which is working.
I assume the master inverter is why the backlight is still running?
Cheers guys -
Re: Baird TE-40LED AL no standby light
The buttons were fine, it turned out to be the PSU which I found strange because even though there wasn't enough power to fire up the tv, the 5v was there and surely that would have been enough to turn on an led?
Confusing, oh well it's good to go now anyway.Leave a comment:
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Re: Baird TE-40LED AL no standby light
It wasn't the main board.Leave a comment:
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Re: Baird TE-40LED AL no standby light
I'll go ahead and order the main av board and see what happens.Leave a comment:
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Re: Baird TE-40LED AL no standby light
Anyone any ideas?Leave a comment:
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Re: Baird TE-40LED AL no standby light
The big resistor at the top of the psu I can't seem to get a reading from. Would this cause the fault? I wasn't sure how to read this resistor, the green band at the end kept throwing me off, but the only way I could make sense of it was to ignore the green band and it would make it a 0.1ohm resistor? it does measure at 0.3ohm but I'm not sure I've tested it correctly.
All the diodes appear fine.Last edited by quiggy; 06-12-2015, 07:27 AM.Leave a comment:
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Re: Baird TE-40LED AL no standby light
I can't find a make of the psu looks like vestel one that I've seen before. I've added a picture of the psu and the main av board too...Leave a comment:
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Re: Baird TE-40LED AL no standby light
That's what I thought, since the 5v is there for standby but there is no light. Do you know of anything else to check to be sure?Leave a comment:
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Baird TE-40LED AL no standby light
Hey guys! Been a while since I last posted, I decided to take some time away from attempting to repair TV's. But, I couldn't stay away and here I am.
Now I've had myself a Baird TV donated which I was told came on after a while but turned itself off 5 minutes later. I assumed caps when they told me but when I got it, I had no life at all, not even a standby light.
I thought it could have been the PSU but I checked standby and it came back at 5.06v so does that lead me to perhaps the AV board? since the standby light isn't coming on.
Is there anything else...Last edited by quiggy; 06-12-2015, 04:06 AM. -
Re: Xenius LCDX42WHD89(A) stuck on standby
I thought it might have been a stuck button too until I noticed the power button turns the blue light on and off with the old board in and not with the new. Also it's not just the vol down, if I leave it for a while with the volume down constantly on, it will eventually change to something menu.
It's really strange. I never saw the TV on before, I had the set given from someone who couldn't work out what was wrong with it, he told me it had a power board issues but it doesn't.Leave a comment:
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Re: Xenius LCDX42WHD89(A) stuck on standby
I've noticed, the volume will be constantly trying to go down unless I interrupt it by pressing a button then everything will function correctly for a few seconds and then bam! volume down again.
It may sound like a silly question but on top of ensuring the board matches the panel, would it have to be matched up with the side buttons too?Leave a comment:
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Re: Xenius LCDX42WHD89(A) stuck on standby
Well the board arrived today and it works, sort of. The TV comes on fine but there's an issue, the side buttons don't appear to work, even when I press the power switch the blue light remains on. When I turn it on, everything is fine on screen it's just the menu pops itself up and the volume turns itself down, when I turn the volume up, it stays at the level for a min and then turns itself down again.
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