2215b adjustment procedure. Please

Robisme

Sansui Enthusiast
I am hoping someone can help. I am looking for the procedure for the adjustments on the driver board. Does anyone have this info?
Please.
Thanks

Rob
 
Connect a VTVM across R735 and adjust trimming resistor R727 until the VTVM reads 10.00 mV dc.

Connect a VTVM across R736 and adjust trimming resistor R728 until the VTVM reads 10.00 mV dc.

It's what the SM says:yes:
 
oldmarantz said:
Connect a VTVM across R735 and adjust trimming resistor R727 until the VTVM reads 10.00 mV dc.

Connect a VTVM across R736 and adjust trimming resistor R728 until the VTVM reads 10.00 mV dc.

It's what the SM says:yes:

Thank you very much sir.

Rob
 
I have not even seen a VTVM. I used the oldest meter I have. It is also my favorite for measuring milli-volts.:yes:

One side was at 4mv and the other at 6mv. Now both at 10mv.

Thanks again.

Rob
 

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You just need a meter with a high-impedance input. A 10 megohm DMM ought to be fine, as would a FET VOM. I think my Radio Shack DMM was advertised to have 30 meg input impedance. My trusty old EICO VTVM is "only" 11 meg.
 
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