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advice needed: restoring 47-1230 - FM & AM now works!!!! :D (uncertain about SW)
#20

Thanks Gary. Some people seems eager to recap everything all at once, but I personally prefer going on a more organised fashion like you mentionned.

Today I printed the datasheets for all the tubes for the radio, that will come in handy.

I started to follow the readings mentionned in Riders, and identified one capacitor (C419) in the FM stage, that is shorted. I assume its nothing new, but it does connect to the anode of C102A, brigning it to GND and forcing false readings everywhere.

I didn't have time today because of other issues, but the next thing I'll be doing is to replace C419 to remove the undesired GND in order to perform good readings.
Then I'll monitor all I can and also redo a check in the chassis to see if there's anything I missed.

Thanks again, the help is really appreciated.

-Mars


Messages In This Thread
Re: advice needed: new ecaps = 47-1230 no longer receives AM - by Marsupial - 05-03-2011, 10:07 PM



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