Questions & Answers

Presonus Firestudio Project won't turn on

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asked Jul 10 in FireStudio Series by louisplett (120 points)

I'm trying to start using an old Firestudio Project I haven't used in awhile.

When I go to turn it on, no lights light up. It's well past warranty so I opened it up to diagnose.

I found the red power light is faintly blinking, and the internal power supply is making a clicking sound.

I used a multi-meter to check voltages that are being sent from the power supply, and found the following:

15v = 19.4v actual
-15v = -17.8v actual

48v = 53v actual
5.4v = 6.1v actual

There are 2 tap lines on the main circuit board to check voltages, and these are also way off
3.3v = 0.67v actual
5.4v = 1.66v actual

Is there anything that can be done to fix this, or are the voltages a sign that some circuits are malfunctioning beyond repair?

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