Hello, I recently replaced a ZSUS board on a Toshiba 42HP66 that wasn't displaying a picture. Now that the TV is working I'm trying to dial it in a bit.
The Vs voltage was 4 volts above what the panel recommended so I dialed it back to the suggested 184 volts. The Va was .06 volts above the recommended 60 volts so I dialed it back too.
The picture is decent but it has a multi-colored pixelation maldischarge when the screen goes to black after a bright image is displayed. I am hoping to find out the proper way to adjust the Vsetup and Vsetdn as these are usually what people suggest as a way to reduce the pixelation.
I have a DMM, an oscilloscope and the service manual. The SM says nothing about adjusting the Vsetup or Vsetdn nor does it have a picture of waveform that seems to correspond to the Y-Sustain.
Any suggestions will be greatly appreciated. Thank you.
The Vs voltage was 4 volts above what the panel recommended so I dialed it back to the suggested 184 volts. The Va was .06 volts above the recommended 60 volts so I dialed it back too.
The picture is decent but it has a multi-colored pixelation maldischarge when the screen goes to black after a bright image is displayed. I am hoping to find out the proper way to adjust the Vsetup and Vsetdn as these are usually what people suggest as a way to reduce the pixelation.
I have a DMM, an oscilloscope and the service manual. The SM says nothing about adjusting the Vsetup or Vsetdn nor does it have a picture of waveform that seems to correspond to the Y-Sustain.
Any suggestions will be greatly appreciated. Thank you.
Comment