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Problem - Es108

Highpass/Lowpass didn't work on one channel, can't hear compressor on both channels when enabled

Description

Dolenga says: When you active the compressor -> press "Comp In" than nothings happens. It seams that the bypass button didn't work. Let's see the Digital-Side: =================== -> Take PDF = Dual Dyn Proc B6-1.pdf -> Top right you will see "CH1 Bypass" (see photo 1) Let's see the Audio-Side: =================== -> Take PDF = Dual Dyn Proc B6-4.pdf -> bottom you see "-CH1 Bypass" K105B (see photo 2) -> The "K105B" is a black transistor with 3 Pins -> We have to check if it works -> "Comp In" is activated = now me measure on the Pin1=4,8 Volt, Pin2=0 Volt, Pin3=0 Volt !! -> The problem is 0 Volt on Pin3, but we should have something like 4 Volt there! -> If we want the 4 Volt, we need first on Pin2=4,8 Volt!!! (Pin2 triggers Pin3) -> But we haven't 4,8 Volt on Pin 2! -> The missing 4,8 Volt are coming from Dual Dyn Proc B6-1.pdf -> Take PDF = Dual Dyn Proc B6-1.pdf -> There you can see the missing 4,8 Volt are coming from U106 Pin 10!! -> The U106 is defective!!

Photo

Video

Pdf

Pdf 1