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CP4500 Stereo Bus Compressor / Re: Positive - Negative Rail Issues

« on: July 04, 2023, 12:53:05 AM »

Update: Removed the two 78L12 and 79L12 regulators and the power supply is back balanced, second channel does not have the issue. 

2

CP4500 Stereo Bus Compressor / Positive - Negative Rail Issues

« on: July 04, 2023, 12:24:19 AM »

Just finalized my build, when i power up using a rig that connects to the card (using a card edge connector) I have the following issue: No CP4500 connected I have +- 15.6v , even with none of the opamps or line drivers inserted, only the voltage regulators, the voltages become unbalanced, the negative rail goes to almoat -20vdc and the positive goes to 9vdc. I have tripple checked all of it.