Got this beast for free .
Model #SP42W4HB
The problem with it is that it apparently only works occasionally. I haven't yet got it to power up. When switched on, it makes a buzzing sound for a second, then the standby LED blinks on and off. It does this repeatedly.
I then looked at the blue CRT PCB. There was a bit of burning on the PCB and I noticed when turned on, a puff of smoke would come from here, or the nearby driver IC. Dead driver IC?
I tried disconnecting the blue PCB. Now the TV powers on briefly and makes the Samsung beep. I get a red-green image, as expected. But it shortly powers off again with a blinking LED. Also the picture was way out of convergence, but a missing blue PCB connection could probably cause that.
Having a look at the board, there don't appear to be any bulging capacitors. What other issues with an RPTV would cause this problem?
Model #SP42W4HB
The problem with it is that it apparently only works occasionally. I haven't yet got it to power up. When switched on, it makes a buzzing sound for a second, then the standby LED blinks on and off. It does this repeatedly.
I then looked at the blue CRT PCB. There was a bit of burning on the PCB and I noticed when turned on, a puff of smoke would come from here, or the nearby driver IC. Dead driver IC?
I tried disconnecting the blue PCB. Now the TV powers on briefly and makes the Samsung beep. I get a red-green image, as expected. But it shortly powers off again with a blinking LED. Also the picture was way out of convergence, but a missing blue PCB connection could probably cause that.
Having a look at the board, there don't appear to be any bulging capacitors. What other issues with an RPTV would cause this problem?
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