Hi All
I have a yamaha emx 2000 powered mixer im trying to repeair.
the problem is that theres no sound output on the right channel. Left channel works fine.
Right channel has output when using the phono(headphone output) but not when going through the amplifier
the left peak meters work but not the right
the clipping light however does come on when gain is turned up same as left channel
What i have done so far is make sure that the supply voltages are fine, which they are
I found several cracked solder joints on the amplifier board which i have resoldered but made no difference
i replaced the stereo fader and 2 of the stereo input faders as it looked like the tracks on them had no carbon left ( tracks where white) and i got weird readings of like 180K ohm out of a 10K slide pot
that still made now difference.
there is a bit of sound coming from the output when everything is set to full volume and gain. i probed around some more, and so far ive just found a 100k resistor in the signal path of the right channel reading about 66k ohm
not sure if that could cause the issue
I have uploaded a service manual i found
any ideas?
I have a yamaha emx 2000 powered mixer im trying to repeair.
the problem is that theres no sound output on the right channel. Left channel works fine.
Right channel has output when using the phono(headphone output) but not when going through the amplifier
the left peak meters work but not the right
the clipping light however does come on when gain is turned up same as left channel
What i have done so far is make sure that the supply voltages are fine, which they are
I found several cracked solder joints on the amplifier board which i have resoldered but made no difference
i replaced the stereo fader and 2 of the stereo input faders as it looked like the tracks on them had no carbon left ( tracks where white) and i got weird readings of like 180K ohm out of a 10K slide pot
that still made now difference.
there is a bit of sound coming from the output when everything is set to full volume and gain. i probed around some more, and so far ive just found a 100k resistor in the signal path of the right channel reading about 66k ohm
not sure if that could cause the issue
I have uploaded a service manual i found
any ideas?
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