Re: Cambridge Audio Azur 551P MM Preamp - No output

Next step:
If the voltage is sagging feel around for something getting warm.

If it looks okay check the voltage at the supply pins of the op-amps (IC's). I can't read the part# on your pic so just google them. Probably dual op-amps, so the supply pins are 4 and 8. (count from the dot counter-clockwise)

Re: Cambridge Audio Azur 551P MM Preamp - No output

In your second picture; the diodes and 'lytics (capacitors) are a bridge rectifier and power supply. First thing I would do is make sure you are getting +/- Voltage Rails. Measured form GND you should see something in the neighborhood of +8VDC on R42 and -8VDC on R43.

Re: New Members - please post your introductions here

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