Re: Panasonic TH42-PZ80U - SS board or Panel?
Then it looks like I'll be using the hair dryer this weekend when I've got time to tinker with the boards. I'll keep you posted. Thanks for the help so far everyone, I appreciate it.
coolie121
Member
Last Activity: 03-05-2013, 02:01 PM
Joined: 02-19-2013
Location: Toronto, Ontario
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Re: Panasonic TH42-PZ80U - SS board or Panel?
DC voltage
This is strange. I changed the SS-board last week. I guess this means that my replacement from shopjimmy may have been dead on arrival
. I will need to call them tomorrow.
By the way, what can cause a panel to go bad? And is there any way to fix them?Leave a comment:
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Re: Panasonic TH42-PZ80U - SS board or Panel?
Scratch my last post. I stood behind it and waited. didn't take too long. The shut off interval seems to be getting successively shorter today. First 45 minutes, then 10, then 5, now 2.
The reading on TPSOS8 spiked as the TV shut off. It went from 0.02V to 23.6V
And the measurements in the previous post were made 30 seconds after the blinking started. It took me some time to get the multimeter and get in place.Leave a comment:
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Re: Panasonic TH42-PZ80U - SS board or Panel?
Not sure how I'd do that. The multimeter doesn't seem to have any feature that lets me record a reading. Also not sure how to hold the probes in place while waiting....Leave a comment:
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Re: Panasonic TH42-PZ80U - SS board or Panel?
Hey everyone,
So here's an update. I watched the TV for 45 minutes today and it turned off. I took the following measurements while it was throwing the 8 blinks:
TPSOS8: 0.000V (when I measure in mV I get 0.003, but that might just be my multimeter; it normally reads 0.003 whenever I use the 200mV setting)
Anode of D280: 0.004V
(cathode of D280 gives a reading of 0.000V)
Does any of this make sense to you guys?Leave a comment:
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Re: Panasonic TH42-PZ80U - SS board or Panel?
tw, thanks so much for your reply. Looking at what you copied and pasted, I think I may have found my problem. The service manual I was using did not specify that D280 had to be measured while the TV was blinking. It simply instructed to unplug the TV, remove the back cover, plug in the tv, turn it on, and then measure D280. The thing is: when I unplug and then plug back in the TV, it works for a while. Therefore I was measuring the voltage at D280 when the TV was working 'normally'.
I'll have to retake...Leave a comment:
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Re: Panasonic TH42-PZ80U - SS board or Panel?
Hey Tom, I've taken the measurement at TPSOS8 while the TV is on. Strangely, the TV hasn't shut off today. I've been running it for 2 hours since I came home from work, and it's still on. I have the back cover off the TV, not sure if this makes a difference. I'm not complaining though
!
Anyways, the reading I obtained from TPSOS8 was 0.020V; although it would fluctuate at times, reaching a low of 0.010V or a high of 0.040V for brief moments. It would hold at 0.020V for most of the time.
Any idea what this...Leave a comment:
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Re: Panasonic TH42-PZ80U - SS board or Panel?
Ok, will try when I get home from work. Thanks for the suggestion. Just to confirm, should I be testing the voltage on TPSOS8 with the TV on?Leave a comment:
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Re: Panasonic TH42-PZ80U - SS board or Panel?
Hey guys, thanks for the replies.
Tom, is there a way for me to check whether it actually is a problem with the A or D board? Right now I'm going by the service manual, which says that if the TV shuts off with SS-33 disconnected then its a D-board problem. When I disconnect SS-33, the TV stays on. Is there something else I can try?Leave a comment:
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Panasonic TH42-PZ80U - SS board or Panel?
Hey everyone
Long time lurker, first time poster here. A few weeks ago my Panasonic TH42-PZ80U shut down and gave me the dreaded 8 blink error code. At first I didn't know what to make of it, so I simply unplugged the TV and plugged it back in the next morning. All was fine, until it happened again. Long story short, the TV now refuses to stay on for longer than 10 minutes at a time.
I have some experience with repairing electronics, albeit mostly with computers, so I decided to attempt a repair. Using the service manual and some advice from badcaps/avsforums I opened...Last edited by coolie121; 02-19-2013, 11:21 AM. -
Re: New Members - please post your introductions here
Hello everyone! My name is Frank. I'm a hobbyist and DIYer, currently in grad school studying business. I'm pretty new to TV repairs (which is the main reason I joined badcaps), but I do have some experience in PC and notebook repairs. Looking forward to reading and contributing to the wealth of information on this forum. Cheers!Leave a comment:
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