Re: LG 50ps3000 power fault
I will try investigate this evening.. I have been trying not to unplug anything with the mains connected.
Thanks for your time and patience. I am a complete novice but at the same time feel it's fixable with guidance.
Thanks...
Mr.deep
Member
Last Activity: 04-28-2016, 11:24 PM
Joined: 04-24-2016
Location: Birmingham
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Re: LG 50ps3000 power fault
No problem. I will try get some pictures up this evening. ThanksLeave a comment:
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Re: LG 50ps3000 power fault
Thanks for responding Steve.
No standby light comes on at all when everything is connected.
Basically when the main board is connected it's like an overheat devise is triggered but I can't see where that is, and then basically the TV will not do anything for approximately 10 after the main board has been unplugged (I'm assuming the overheat is cooling)..
Hope that helps
My number is 07506690823 if anyone can talk me through some trouble shooting.
ThanksLeave a comment:
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Re: LG 50ps3000 power fault
Is anyone making sense of this problem?? I would love to get to the bottom of it but I'm out of my depth here....Leave a comment:
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Re: LG 50ps3000 power fault
With YSUS and ZSUS unplugged it's not holding on. With the left board plugged in only (YSUS) I was getting 196vdc. With the right board (ZSUS?) plugged in only it was giving me same 196vdc at first but now it isn't and the relays aren't holding in.... So I plugged in the main board and it all tripped out
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Re: LG 50ps3000 power fault
Anybody??Leave a comment:
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Re: LG 50ps3000 power fault
Power board fault maybe??Leave a comment:
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Re: LG 50ps3000 power fault
When the y sus is connected the relays stay in,
I'm getting readings from the bridge rectifiers. Theres 5vdc on the pins to the YSUS ... Leds flashing on the ctrl(?) board.
Once I take out the YSUS, the relays drop and everything dies.
But regardless of what is plugged into the power board, as soon as the main board is connected, everything dies, and won't come back on until about 10 minutes after the main board has been disconnected......Leave a comment:
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Re: LG 50ps3000 power fault
Hi Alistair, the 'main board' I'm referring to is the board with the hdmi/scart etc on it......Leave a comment:
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Re: LG 50ps3000 power fault
So I disconnected everything from the power board, switched the power on, and u can here the relays kick in and then drop out.
Connected everything except the main board, switched it on and again they click and then drop out, as above.
Then I disconnected everything, connect the the main board, switch on, and nothing happens.
Now even when the main board disconnected nothing will happen even with the relays until about 10 minutes has passed..Last edited by Mr.deep; 04-25-2016, 10:33 AM.Leave a comment:
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Re: Samsung ps50a457
Thanks reecey, can you help me understand why when I disconnect the ribbon for that strip it changes colour and looks the same as if I disconnect the ribbon from any other part connected to the screen?...Leave a comment:
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Re: LG 50ps3000 power fault
As long as the main board is disconnected everything else connected will power up.. Apart from the screen. But the Voltages travel to the other boards....Leave a comment:
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Re: LG 50ps3000 power fault
Can you help me powering up the TV with the mainboard connected and running the test please
Many thanks...Leave a comment:
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Re: LG 50ps3000 power fault
How can I jump the board please?Leave a comment:
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Re: LG 50ps3000 power fault
Thank you.. But I think u misunderstood?
It's only when the main board is connected that the power shuts down, I think maybe due to an overheat cut out because I can't then power up at all until some time has passed.
When the main board is disconnected the power on the board is fine, 5vdc to all points and relays hold in.....Leave a comment:
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LG 50ps3000 power fault
Hi guys
I'm currently looking into a power fault, where when the main board is connected the dc relays don't hold in and power to the rest of the TV fails.
When I disconnect the main board the power Is distributed around the TV (I think In my basic knowledge) as normal.
Would I be correct in replacing the main board or could there be more to it than that?
Many thanks -
Re: Samsung ps50a457
Ohww no! My worst fear lol
I was hoping it was a board due to the fact that when they were disconnected the fuzzy bar dissappeared...
Also wouldn't the fuzzy lines be constant in that case, whether the ribbon was connected or not?Leave a comment:
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Re: Samsung ps50a457
Wow that was quick!
I've added 2 pictures
Thanks!...Leave a comment:
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Re: Samsung ps50a457 3 inch horizontal fuzzy bar
Hopefully uploaded 2 pictures...Leave a comment:
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Samsung ps50a457
Hi all
I have a Samsung ps50a457 which has a 3INCH vertical fuzzy bar.
I've disconnected the y-sus and the screen went black.
I've disconnected the x-sus and the screen went black with some barely visble fuzzy patches in the screen Centre.
I disconnected the ribbon for that part of the TV and the fuzzy line went a lighter shade.
I disconnected another ribbon connected to the screen and that wen fuzzy with the same shade as above.
Can anyone suggest a solution?
Thanks
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