Hi,
This is my first thread post. Hope this is going into the right section.
My LG Plasma recently developed a pixely line down the centre of the screen. The TV is about 5 years old never any problems until I turned it on to find this line. Its had it for a few months now. Started small and ended up getting bigger. I have no receipt for this and so decided to fix it myself.
I found a forum thread through google, by Tom66 who describes in great detail trouble shooting common plasma problems. (www.badcaps.net/forum/showthread.php?t=18542)
It looked to me that I may have a sparklies problem. So i followed the instructions given and checked the voltages for the Va and Vs. These were different from what is given on the sticker inside the TV. I eventually located the adjusters for these and set them according to the stickers. The line did infact get better. I was beginning to get very excited that this would be sorted in no time.....
I was wrong.....
I followed on and checked the voltage on the VZB Resistor and adjusted this also according the sticker. The line again got better
Now I need to take a voltage reading for VY and VSC on the YSUS. The problem being that when I test the voltage along what i think is the correct resistors, the values Im getting are constantly changing!?!?
When I tested the VZB at the resistor the voltage was constant and allowed me to adjust but for the VY and VSC the readout is changing before returning to nothing.
Can anybody help with this? Do i need to measure these resistors differently using my multimeter? Am I at the wrong test points? Are these even the problem at all?
If i turn the VY and VSC all the way down the line disappears altogether on dark screen but is noticeable on a light screen. There are also adjusters for SETUP and SETON whatever these are.
I have attached some photos for reference.
This is my first thread post. Hope this is going into the right section.
My LG Plasma recently developed a pixely line down the centre of the screen. The TV is about 5 years old never any problems until I turned it on to find this line. Its had it for a few months now. Started small and ended up getting bigger. I have no receipt for this and so decided to fix it myself.
I found a forum thread through google, by Tom66 who describes in great detail trouble shooting common plasma problems. (www.badcaps.net/forum/showthread.php?t=18542)
It looked to me that I may have a sparklies problem. So i followed the instructions given and checked the voltages for the Va and Vs. These were different from what is given on the sticker inside the TV. I eventually located the adjusters for these and set them according to the stickers. The line did infact get better. I was beginning to get very excited that this would be sorted in no time.....
I was wrong.....
I followed on and checked the voltage on the VZB Resistor and adjusted this also according the sticker. The line again got better
Now I need to take a voltage reading for VY and VSC on the YSUS. The problem being that when I test the voltage along what i think is the correct resistors, the values Im getting are constantly changing!?!?
When I tested the VZB at the resistor the voltage was constant and allowed me to adjust but for the VY and VSC the readout is changing before returning to nothing.
Can anybody help with this? Do i need to measure these resistors differently using my multimeter? Am I at the wrong test points? Are these even the problem at all?
If i turn the VY and VSC all the way down the line disappears altogether on dark screen but is noticeable on a light screen. There are also adjusters for SETUP and SETON whatever these are.
I have attached some photos for reference.
Attached Files
Comment