Voltage check question. 10 and 44-45 [resolved]

[Paul Birkeland]

Take the 0.47uF cap out of the amp and recheck the voltage on terminal 10.

 

[canonken]

Hi,

I removed the .47uF cap completly.  10 reads 0 volts.

If I do a continuity check on the cap, it beeps constantly and shows a impedance of 0.1 to 0.5 ohms.

I happen to have a mis-shipped (same line of Dayton as the .47uf) .1uF cap, and it immediately shows OL and no beep when read with the same meter.

Thanks again for your support.

 

[Paul Birkeland]

I would toss in a replacement cap.  Is there any physical damage to the cap? 

 

[canonken]

Hi Paul,

There is no damage I can see, I am happy to send you images or the cap.

With the cap removed, are there any other checks I should perform (should all of the other voltages read the same, or does the cap being out impact anything else up or downstream)?

I will email for a new one.

Thanks for the quick reply.

 

[Paul Birkeland]

If the cap is showing a low resistance measurement out of circuit, the cap needs to be replaced.

 

[canonken]

Replacement cap arrived today, soldered it in, did a final voltage check and...

Works perfectly!  Have a record playing as I type.

It was that .47uF cap causing all of the drama

Appreciate the support.