Behringer Xenyx1202FX mixer

[x-pro]

For IC6 the IC has no standard DOT to id Pin 1

The body is beveled. Your drawing is correct!

[JP-Stereo]

The voltages from the transformer look good.
33.869 vac differential and 16.9 vac on each side.

I took some measurments before replacing the transistors and resistors, so things may have changed...
I recheck the voltage at IC6 and they are now in the expected range.

Do you think it is still usefull to remove the other IC ?

[x-pro]

Do you think it is still usefull to remove the other IC ?

which?

[x-pro]

I recheck the voltage at IC6 and they are now in the expected range.

good

[JP-Stereo]

From message #44 "OK i will remove IC7, IC8 and IC9.", it's not done yet...

It maybe very usefull to see at wich signal level the Clip led is going on with your 1204fx ???
And what level it reach after clipping...

I have difficulties to beleive that 10 volts is normal...

[x-pro]

It maybe very usefull to see at wich signal level the Clip led is going on with your 1204fx ???
And what level it reach after clipping...

I have difficulties to beleive that 10 volts is normal...

tomorrow

[x-pro]

From message #44 "OK i will remove IC7, IC8 and IC9.", it's not done yet...

Yeah. Also replace

[JP-Stereo]

Hi, the supplies are at 15.6 v ac well ballanced.

I removed all 3 other channel preamps (IC7, IC8 and IC9) and the first 4 transistors and 2 diodes of each channel without any change.
Only channel 1 have the preamp opamp, transistors and diodes.


"It maybe very usefull to see at wich signal level the Clip led is going on with your 1204fx ???
And what level it reach after clipping..." or at max.