Thread: AR88 -- help!
View Single Post
  #19   Report Post  
Old August 24th 09, 12:36 AM posted to rec.radio.amateur.boatanchors
MoiInAust MoiInAust is offline
external usenet poster
 
First recorded activity by RadioBanter: Aug 2008
Posts: 80
Default AR88 -- help!

Thanks again Piero.

Interleaved as before

"Piero Soldi" wrote in message
...
OK, make some measures.

With a VTVM or other *high* impedance voltmeter, make a reading at
juncton between R43 and C97 ( 4uF ) and chassis ground.

Must be approximately *minus* 3-4 volt.


That's the foot of the AVC chain and surely 3-4 Volts is *much* too low. I
get 27-30, which would be expected with a total current of 110 mA and a
total AVC chain of 275 Ohms.

Again, make a measure at junction between pot R46 pin 3 with R55 and
chassis.

Must be approximately *minus* 0,3-0,4 volt.

There is no pot R46. Do you mean RV3. Which do you mean by 'pin 3'

Cheers
Alan