Author Topic: SENCORE CB42  (Read 248 times)

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Offline Crambone

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SENCORE CB42
« on: May 11, 2019, 10:14:14 AM »
My CB42 frequency counter isnít showing correct frequency, all numbers light up. I checked power to the top board and Iím seeing the 5v and 10v.
Just not sure weíre to start looking. I looked on YouTube and seen a video by The Radio Shop but it wasnít for counter diagnosis.
Any suggestion on were to start? I did print out all the schematics he had on his site.

Offline The Radio Shop

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Re: SENCORE CB42
« Reply #1 on: May 25, 2019, 08:53:54 AM »
Start by checking voltages and AC ripple.  These logic circuits require that the voltage is spot on and clean.
 Also change out any electrolytic capacitors.  At times I have seen the inductors on the counter board go open.
They look like little resistors.
Buddy kc4umo

Offline Crambone

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Re: SENCORE CB42
« Reply #2 on: May 25, 2019, 06:53:39 PM »
Ok thank you