Re: Vizio plasma TV issue HELP!

Ok so I disconnected the X sustain board with the Y sustain plugged in and the TV still shut down, but when I turned it on again and it stayed on. I think the first time it didn't turn on because it detected a disconnected board, but it turned on the second time. When it was on I tested the power supply and it was good actually. Then, I reconnected the X sustain board and the TV shut down both times. So I think the problem is the X sustain because it prevented the TV from turning on. What do you think?

Re: Vizio plasma TV issue HELP!



I apologize, and this will be the last thread concerning this issue. I just needed additional help and wanted a little bit more advice. I have your recommendation kept in mind regarding this issue. I'm new to this forum and I wont let this happen again. I didn't mean to cause any trouble for you or for anyone else....

Re: Vizio plasma TV issue HELP!

My meter is set to DC Voltage. Should I try replacing the fuse first or test it again without anything connected to it including the main video board? The Z sustain is powered from the Y sustain.

Re: Vizio plasma TV issue HELP!

I did test the Vs while powering it up and it read over 300V then it immedialtly goes down below 3V and starts going down slowly. This is the same case for the Va. I think the power supply is not supplying the right DC voltage to the sustain boards. I also don't see any bulged capacitors on either board. I actually tested the fuses and one of them were bad on the y sustain board.

Re: Vizio plasma TV issue HELP!

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Here is a picture inside the TV.Re: Vizio plasma TV issue HELP!

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Here is a picture inside the TV....

I have a Vizio P50hdm and when I turn it on it shuts down after 2 seconds. During those 2 seconds I hear a fizzing noise coming from the power supply before it shuts off. Using my multimeter, I checked the Vs and Va voltages on the power supply board, and I got less than 3 volts going to the X and Y sustain boards. The standby voltage is fine which is at 5V. The sticker on the TV says that the Vs is 196V, and the Va is 60V. So is it safe to say that the power supply is the problem and should be replaced? I disconnected the X and Y sustain boards one at a time and the TV still shuts down so I know...

Re: Vizio P50hdm plasma TV turns on then off

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Here is a picture of the internals.Re: Vizio P50hdm plasma TV turns on then off

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Here is a picture of the internals....

I have a Vizio P50hdm plasma TV, and when I turn it on it turns off after 2 seconds. Using my multimeter, I tested the standby voltage and it read 5 volts which is shown on the board. The standby light does turn on in the front of the TV so that tells me standby voltage is fine. Then, I tested the Vs and Va voltages and they were very low. The sticker on the TV says that the Vs is 196V, and the Va is 60V. After that, I tried disconnecting the X and Y sustain boards one at a time but the TV still shuts down. I would assume that it's the power supply that's the problem. Do you think it is the power...

Re: New Members - please post your introductions here

Hi everyone, I am new to this forum and hope to learn new things and help others as well. I came here because I need help fixing my TV.