I have been reading all the threads here pertaining to this model tv, and have done some probing in the tv. Basically I would like you opinions to verify which boards I may need to repair this. I have ordered a Panasonic to replace it but would like to fix this set since the parts seem to be relatively inexpensive.
It was working fine until one evening my wife turned it on by the manual button and she said the screen lit for a moment and went blank. To my knowledge, there was no sound either, but I can't verify the sound because I am not sure what input it is on since the screen doesn't work.
The red LED is on, and will turn blue by either using the manual button or by remote. It clicks once (which is normal), and after a couple seconds will click again twice, and nothing happens.
I printed off one of the threads here which explains the boards and general locations, and explains how to check the boards by unplugging them one at a time. I also checked the Y buffer as is shown in the youtube video within the thread.
The results are as follows:
-Unplugged z-sustain only= still clicks 3 times when turned on
-Unplugged y-sustain AND z-sustain= clicks 1 time when turned on (normal)
-Unplugged y-sustain only= clicks 1 time when turned on (normal)
-Disconnected y-buffer from y-sustain only= still clicks 3 times when turned on
-I checked the voltage with y-sustain unplgged and have 205+- (va) and 54+-(vs)
-Tested y-buffer and found no continuity (shorts)
Since I can't weld new compnents on a circuit board with my MIG welder, and my soldering skills leave a lot to be desired, I am relegated to replacing complete board assemblies.
With the above info, I would suspect at minimum, it needs a y-sustain board.
So I am looking for your expertise on:
1) Is there anything else I should check before buying new boards?
2) What do you recommend I should get for boards?
I would rather err on the safe side than to install a board and burn it out again.
Thanks,
stude
It was working fine until one evening my wife turned it on by the manual button and she said the screen lit for a moment and went blank. To my knowledge, there was no sound either, but I can't verify the sound because I am not sure what input it is on since the screen doesn't work.
The red LED is on, and will turn blue by either using the manual button or by remote. It clicks once (which is normal), and after a couple seconds will click again twice, and nothing happens.
I printed off one of the threads here which explains the boards and general locations, and explains how to check the boards by unplugging them one at a time. I also checked the Y buffer as is shown in the youtube video within the thread.
The results are as follows:
-Unplugged z-sustain only= still clicks 3 times when turned on
-Unplugged y-sustain AND z-sustain= clicks 1 time when turned on (normal)
-Unplugged y-sustain only= clicks 1 time when turned on (normal)
-Disconnected y-buffer from y-sustain only= still clicks 3 times when turned on
-I checked the voltage with y-sustain unplgged and have 205+- (va) and 54+-(vs)
-Tested y-buffer and found no continuity (shorts)
Since I can't weld new compnents on a circuit board with my MIG welder, and my soldering skills leave a lot to be desired, I am relegated to replacing complete board assemblies.
With the above info, I would suspect at minimum, it needs a y-sustain board.
So I am looking for your expertise on:
1) Is there anything else I should check before buying new boards?
2) What do you recommend I should get for boards?
I would rather err on the safe side than to install a board and burn it out again.
Thanks,
stude
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