Re: Lg 50pv450
Check out this thread...
[url]https://www.badcaps.net/forum/showthread.php?t=33717[/url]
It shows what I did to fix my tv. It turns out to be a bad main board. Good luck.Re: Lg 50pv450<br />
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<br />...rd. Good luck.Re: Lg 50pv450
Check out this thread...
[url]https://www.badcaps.net/forum/showthread.php?t=33717[/url]...
weimars
Member
Last Activity: 01-28-2014, 07:23 PM
Joined: 12-01-2013
Location: IOWA
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Re: Mitsubishi WD-65733 Main board caps
I was going to replace a few caps on the main board in an effort to rule out a few suspects. I've read a few forums here that suggest using Panasonic FR (FM, FC...) series caps for the ultra low esr. I've got some Rubycon PX series (through hole) caps that was going to use. My question is are they not a low enough esr to function properly?
Second question: There are many caps that have similar ratings (i.e. 6v 47uf, 16v 100uf, 16v 10uf...), can I use one size cap that would accommodate the bulk of these caps (i.e. 16v 100uf)?...Leave a comment:
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Re: LG 60PV450-UA Testing Main Board
UPDATE:
I went ahead and bought a new main board for this tv, since my replacement control board didn't seem to change anything, and it works like a dream! I've had it on during the day now for about 3 days and it has performed flawlessly. I actually think it has a pretty good picture.
Thank you tom66 for your reply and thinking the problem through with me!Leave a comment:
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Re: Mitsubishi WD-65733 Main board caps
Your links go to the same page. Did you have a different thread in mind?...Leave a comment:
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Re: Mitsubishi WD-65733 Main board caps
I was able to send a signal to turn on the ballast and the lamp started to light, but with no fans running I let it turn off. I replaced the lamp recently (1-1.5 yrs) and I used a Osram lamp that has worked really well.
I don't have an ESR meter. Would I be able to test them on the board? If I had to take them off to test, I'd probably go ahead and replace anyway. What ESR meter would you look at buying? I do like to have nice equipment, but I don't have to have the best of the best. I just want it to give me an accurate measurement...Last edited by weimars; 12-16-2013, 08:01 AM.Leave a comment:
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Re: Mitsubishi WD-65733 Main board caps
I've purchased things from them before. There's not much of a challenge in just replacing a board. If that's what it ends up being I suppose I will.
I've checked a couple of the regulators, fuses are good as well. There are a few test points labeled with voltages that seem to be ok. Is there other things to be looking for.
I've heard the caps on the board can be a big problem and if I replace all of them (99 I think) that should allow the set to complete the boot sequence. I'd try and tackle that if there is some truth...Leave a comment:
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Re: Mitsubishi WD-65733 Main board caps
I understand now what you meant. Is there any repair to the original board (i.e. replacement of caps) that you see being possible? Or buy a used one from ebay. Or buy new (reconditioned)? Is there a certain part of the board that I should look first for diagnosing a possible fault? ThanksLeave a comment:
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Re: Mitsubishi WD-65733 Main board caps
@newtothis ... I believe I have reasonable abilities. What did you have in mind?
@RON_CET ... I have the service manual but I'm not sure how to put set in diagnostic mode to complete the boot cycle. I agree with the normal light operation as this is my personal tv that I use regularly, it would let you power on after 60/70 secs. How would you be able to retrieve the alignment data and geometry data (assuming through the diagnostic mode)?Leave a comment:
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Mitsubishi WD-65733 Main board caps
I've got a Mitsubishi Wd-65733 w/ main board part # 934c260002. The tv will not power on and just has a constantly blinking green light on the front. The light and ballast are fine, the power supply tests fine as well. I think it is in the main board, is there something to look for on this to get it to turn on? The troubleshooting codes give nothing to go by.... -
Re: LG 60PV450-UA Testing Main Board
I tried a replacement control board and it has the same problem with nothing changed. So I've ordered a replacement main board and hopefully that'll solve the problem. I'll update when I give it a go.Leave a comment:
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LG 60PV450-UA Testing Main Board
I've got an LG 60PV450 plasma that I'm diagnosing a no picture problem, but has sound.
INFO:[INDENT]The voltages are all in spec.
The tv powers on and stays on with sound transmitted.
In a dark room you can see that the screen does have a glow to it.
I have used a jumper on the CTRL board to get test patterns (w/ the LVDS cable disconnected) and the patterns display with no lines and look excellent.[/INDENT]
QUESTIONS: [INDENT]Do I conclude that the CTRL board is fine considering the results of the test pattern?
How do I test the main... -
Re: Lg 50pv450
I was wondering if anything has been resolved from this diagnosis? It looks like the thread just ended. I'm researching an only sound, no video problem from my LG 60PV450 and was reading from this thread interested on how it turned out. Thanks for the update if possible. Maybe I'll just start a new thread...Leave a comment:
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