I recieved a Hafler DH101 pre in semi-working condition . It has a high noise floor (no hum, just noise) and sound does make it through the pre, but it is not fullrange and the vol control has to be turned fully clockwise to get anything.
I have the service manuel.
Now, i have +/- 18v from the power supply, so thats working. I checked to see if any of the tantalum caps had shorted and they okay. Should i go ahead and replace the tantalums and electrolytics in the circuit? With no voltage chart i'm at a loss at where to go from here.
Any suggestions? Thanks.
What kind of noise??Hiss??
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