Question about Behringer XENYX 2442FX Mixer
Operational amplifier circuit named 4580 is the issue as with most of mixing boards, each channel has its own operational ic's and one way to know which one is defective is simply touch every one on the board, inside of course, of the non-working channel, check for excessive heat and if you find one pretty hot compared to other you just find your bad component, you will recognize what type of ic im talking about, is a 8-pin smd ic where the pin 4 should have -15v and pin8 should have +15V, no other pin should have any voltage and this is another way to test an opamp, with a dmm in dc volts referenced to ground, chassis ground, let me know if you need further assistance.
Posted on Nov 05, 2013
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Posted on Jan 02, 2017
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