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Old 05-01-2026, 12:06 PM
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TinCanAlley TinCanAlley is offline
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Join Date: Sep 2008
Location: So Cal, CA
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I just reread the IF detector output adjustment again. I waited for someone to chime in, but I'm just going ahead and do it. I realize now the set needs to be on while doing this as the voltage I'll be inserting is 7.2V and I'm adjusting for an output of 8.5V. Not an electronics wizard, but I don't think that is possible without the set's power supply having a hand in it.

The insertion point is on the line going between the AGC connections of the IF and Video Processing Modules. SM says normal voltage of the AGC is 5.79 to 7.51V. The voltage being measured while adjusting is on C1 (detector output).

Not sure, but to be on the safe side, I might put a capacitor on my positive lead of the power supply to keep any DC from heading up my way.

Wish me luck.
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