I have an LG 60PX950-AA plasma TV that I purchased in Feb 2011. When I turn mine on I will see a faint white picture across the whole screen for about a second then blacks out as if the TV is off. There is no sound. Prior to this my son told me when he was watching TV the screen flicked on and off a few times then stayed off. Volume also cut out.
The following picture is what the back of my TV is:
http://postimg.org/image/ajvcfv0fn/
The repair process for no picture or sound:
http://postimg.org/image/68bc4liwj/
Repair process no picture with sound
http://postimg.org/image/3uoszuf3n/
The following is the voltage label for my TV:
http://postimg.org/image/bdcjm7vub/
Tested voltage for Va is 59.6 and Vs is 202.3 using the following test points to earth:
http://postimg.org/image/76rp6vw8j/
Voltage for Vy is 179.4 and Vsc was 149.5 using the following test points:
http://postimg.org/image/accax3eur/
Voltage for Vzb is 104.6 using the following test point:
http://postimg.org/image/zfos3cn3n/
I tested voltages and the following connector on the power board and they where all 5v:
http://postimg.org/image/wqtzdbhmb/
The ASIC on board LED light will light for about 2 sec then blink once repeating this once more. ( http://postimg.org/image/asxijj2lv/ )
The Y board and Y buffers have been replaced with no success.
Where is the next test point in the repair process is "B+ voltage on the power board/control /Check B+(5V)" etc.
Is there anything else to check?
Cheers
Winston.
The following picture is what the back of my TV is:
http://postimg.org/image/ajvcfv0fn/
The repair process for no picture or sound:
http://postimg.org/image/68bc4liwj/
Repair process no picture with sound
http://postimg.org/image/3uoszuf3n/
The following is the voltage label for my TV:
http://postimg.org/image/bdcjm7vub/
Tested voltage for Va is 59.6 and Vs is 202.3 using the following test points to earth:
http://postimg.org/image/76rp6vw8j/
Voltage for Vy is 179.4 and Vsc was 149.5 using the following test points:
http://postimg.org/image/accax3eur/
Voltage for Vzb is 104.6 using the following test point:
http://postimg.org/image/zfos3cn3n/
I tested voltages and the following connector on the power board and they where all 5v:
http://postimg.org/image/wqtzdbhmb/
The ASIC on board LED light will light for about 2 sec then blink once repeating this once more. ( http://postimg.org/image/asxijj2lv/ )
The Y board and Y buffers have been replaced with no success.
Where is the next test point in the repair process is "B+ voltage on the power board/control /Check B+(5V)" etc.
Is there anything else to check?
Cheers
Winston.
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