Panasonic TX-P42X50B won't power on
Discussion
Hi All
After a recent power cut our 21-month old Panasonic TX-P42X50B won't power on. I've done a bit of searching around and it appears that they are well known for blowing their PSUs under certain conditions.
I've taken the back off the TV and have located the PSU board. I can order a replacement (with unknown history) one from Ebay for £65 but thought it would be useful if I could prove that this one is dead first.
Does anyone have a service manual for this model? I'd like to just check continuity on the fuses I think. Obviously if I could just replace a fuse or two that would be great.
Thanks for any pointers!
After a recent power cut our 21-month old Panasonic TX-P42X50B won't power on. I've done a bit of searching around and it appears that they are well known for blowing their PSUs under certain conditions.
I've taken the back off the TV and have located the PSU board. I can order a replacement (with unknown history) one from Ebay for £65 but thought it would be useful if I could prove that this one is dead first.
Does anyone have a service manual for this model? I'd like to just check continuity on the fuses I think. Obviously if I could just replace a fuse or two that would be great.
Thanks for any pointers!
I've managed to locate a fuse 'F201' which looks like a standard fuse. Using my multimeter I get continuity so that's ok.
There's another component 'F202' which I'm assuming is a different type of fuse. Am I likely to be able to measure that? I can't see any joins, so I assume they are on the reverse of the PCB?
There's another component 'F202' which I'm assuming is a different type of fuse. Am I likely to be able to measure that? I can't see any joins, so I assume they are on the reverse of the PCB?
megaphone said:
Did you pull the fuse when you tested it? Always wise as you could get continuity through the circuit.
Are yo getting any voltage on any point on the PSU? Measure 230v going in and then check the other side of the board to see what's coming out.
Ah no, I didn't take it out. I just measured across the solder joints, but I see your point. I'll whip it out when I get home later and also check the voltage out if I can.Are yo getting any voltage on any point on the PSU? Measure 230v going in and then check the other side of the board to see what's coming out.
Thanks
Does it do anything? Click on/off no power led? Usual problems with these modern TVs are the electrolytic capacitor drying out etc. They are easy to tell by looking 'bulged'. I managed to repair a 40" Samsung that was heading for the dump for £1.99.
Have you looked on eBay to see if there is a repair kit?
Have you looked on eBay to see if there is a repair kit?
Morningside said:
Does it do anything? Click on/off no power led? Usual problems with these modern TVs are the electrolytic capacitor drying out etc. They are easy to tell by looking 'bulged'. I managed to repair a 40" Samsung that was heading for the dump for £1.99.
Have you looked on eBay to see if there is a repair kit?
Well - I've just plugged the TV in again to start measuring some voltages and it's now working as usual.Have you looked on eBay to see if there is a repair kit?
I assume one of those fuses that 'cools down' over time and resets itself?
ArsE92 said:
Morningside said:
Does it do anything? Click on/off no power led? Usual problems with these modern TVs are the electrolytic capacitor drying out etc. They are easy to tell by looking 'bulged'. I managed to repair a 40" Samsung that was heading for the dump for £1.99.
Have you looked on eBay to see if there is a repair kit?
Well - I've just plugged the TV in again to start measuring some voltages and it's now working as usual.Have you looked on eBay to see if there is a repair kit?
I assume one of those fuses that 'cools down' over time and resets itself?
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