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GE Portacolor: AGC troubles
Hello,
I have a GE Portacolor, which only displays a raster. No sound, no picture. At the 11BT11 (AGC keying) I found 5V at the cathode and appr. 5V at the grid. With some adjustment at the AGC control I can get 8V. But it has to be 60V. As a consequence I read at the grid of the first video IF tube (pin 10 at the 8AR11) -50V (it should be .1V). Did somebody had AGC troubles with the Portacolor?
- Eckhard
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