Peavey M100 Help!!

[DJ-MD]

Have a Peavey messenger m100 portable powered mixer pa system
Everthing works input cd, mics, headphones, line out BUT......

Both Main L and R speaker ouputs do NOT work.....
Bad power amp??
Speaker output relays??
Fuses??

How could I fix or Test....?

Please Help....!

[booj]

check the speakers first.

[Enzo]

The power amp is class D, and one chip handles both channels.

Are all the connectors on the power map board on fully?

The power amp runs on +25/-25VDC - are BOTH present at CN100?

Between the chip and Q101 transistor is a zener diode DZ101. is there about 5 or 6 volts across it?