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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
LG 50PG10-UA problem

 

 


deegatron
New User

Feb 28, 2011, 2:02 AM

Post #1 of 3 (5230 views)
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LG 50PG10-UA problem Can't Post

Heya Guy's,
Im in a bit of a pickle and im hoping some of the experts can help.
I've got a 50" LG plasma tv that's on the fritz.
Model 50PG10-UA
product code 50PG10-UA.ACCVLHR
MFG date OCT 2008 (Im 2 months out of warranty.)
FCCID BEJNS50PDP09
Here's my problem.
When I turn the TV on I get an incredibly fuzzy picture for somewhere between 5-30 sec's.... then the picture turns off all together...
the sound stays on though....
I've checked every circut board for bulging capacitors and could find none....
I've also tried disconnecting the ysus buffers as per this thread
http://www.austech.info/...-has-no-picture.html
the top buffer alone shows the same fuzzy picture for a few sec's then no picture...
the bottom buffer alone shows no picture...
Anyone have any insight to offer??? or anything else I could try to narrow down the problem???
Anyone have access to the repair manual for this tv that they could send to me?

I've also checked all of the voltages from the power supply and they match the voltages printed on the circut board pretty close.... im not sure how to check for a "noisy power supply" tho...??


(This post was edited by deegatron on Feb 28, 2011, 2:05 AM)



deegatron
New User

Mar 1, 2011, 6:34 AM

Post #2 of 3 (5215 views)
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Re: [deegatron] LG 50PG10-UA problem [In reply to] Can't Post

Did some more testing tonight....
There is a list pinout listing for the Y-sus driver boards...
it lists pins 1 and 2 as +5 volts...
Im getting 4 volts for a seccond or two and then the voltage jumps to -96 volts....
then after 20 secconds or so it goes up to +60.0 volts.....
Ummmm... yeah.....


richpart
User


Mar 6, 2011, 9:01 PM

Post #3 of 3 (5197 views)
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Re: [deegatron] LG 50PG10-UA problem [In reply to] Can't Post

Have you tried to update the firmware?









Knowlege is King Baby!!!

 
 
 


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