I recently acquired a non-working Vizio P42HDTV10A plasma TV. The guy that originally owned it noted that it made a sort of popping noise, then the picture went dark. Physically, the unit was pristine, very clean. My parent's Samsung Plasma went out about 6 months ago under similar circumstances, and I replaced the power supply w/positive results (as in, the TV is still working, and the work wasn't very difficult), so I figured it couldn't hurt to take a swing at repairing it.
Once I got it home, I noted that the green power light did come on, but it shuts itself off after about 10 seconds (something the original owner didn't tell me), reverting to the orange standby light. Based on what I've read here and elsewhere, the popping problem usually indicates an issue with the y-sus or x boards, whereas the automatic turn off is usually a power supply issue. I should note that the board below the video boards (the one the white ribbon cable from the y-sus board connects to) has 4 little LED indicators on it, and only 3 come on before it shuts itself off.
Now, I'm very much an amateur. I'm not uncomfortable taking electronics apart, and I've done some custom PC builds, etc., but when it comes to multimeters, capacitors, etc., I'm generally out of my element. I do own a multimeter, a very basic one. All the fuses looked good, and I didn't see any suspiciously bulging capacitors (though again, capacitors aren't my strong suit).
So I guess my question here is would there be a relatively easy way to determine which board is causing the issue? I've included pictures of the boards in question with as much detail as possible. If it's a multi-board issue, I'm inclined just to scrap it as putting $200 or more in an outdated set seems like a waste, but if it's a matter of just one bad board or a component that can be repaired, I feel like that's worth the effort.
Thanks in advance for any help!
Once I got it home, I noted that the green power light did come on, but it shuts itself off after about 10 seconds (something the original owner didn't tell me), reverting to the orange standby light. Based on what I've read here and elsewhere, the popping problem usually indicates an issue with the y-sus or x boards, whereas the automatic turn off is usually a power supply issue. I should note that the board below the video boards (the one the white ribbon cable from the y-sus board connects to) has 4 little LED indicators on it, and only 3 come on before it shuts itself off.
Now, I'm very much an amateur. I'm not uncomfortable taking electronics apart, and I've done some custom PC builds, etc., but when it comes to multimeters, capacitors, etc., I'm generally out of my element. I do own a multimeter, a very basic one. All the fuses looked good, and I didn't see any suspiciously bulging capacitors (though again, capacitors aren't my strong suit).
So I guess my question here is would there be a relatively easy way to determine which board is causing the issue? I've included pictures of the boards in question with as much detail as possible. If it's a multi-board issue, I'm inclined just to scrap it as putting $200 or more in an outdated set seems like a waste, but if it's a matter of just one bad board or a component that can be repaired, I feel like that's worth the effort.
Thanks in advance for any help!
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