I can't get any sound to go through Mackie 1604-VLZ3.
I've tested to insert sound to every channels and checked all button positions and nothing comes out from main output or the phones....
There is NO way to select channels to "Source"... The selections on this mixer are to send the channels to SOLO, Sub1-2 or Sub 3-4 and/or main L-R. You should have the bottom button for each channel punched down to L-R. NEVER connect ANYTHING other than an external effects unit to the INSERT jacks!!!! These jacks are combined output/input jacks with send and return on the same jack. Special insert cables are used for these. An external drum machine should be connected to a line input for one of the channels USING a TRS balanced cable. Page 28 of your user manual shows the block diagram and signal flow diagram. The trim control is the input gain control. Start with those say at 12 o'clock and advance the fader for the channel of interest...you should get signal at the main outs. MAKE SURE that the lines from the mixer to the amps are BALANCED TRS type cables... You cannot use unbalanced cables for this. The user manual explains balanced cables and what they look like. I just repaired one of these mixers that some foolish people plugged stuff into the MAIN INSERT jacks and blew out the driver that drives the MAIN insert which kills the input to the MAIN output drivers. There is one small chip between the AMAIN fader and the sub next to it and one has to remove every knob and take the unit all apart to get to it... It is a tiny surface mounted part the size of a matchhead with 8 leads... not for the faint of heart to repair. As a test of this part, you can plug a st of headphones into the RIGHT MAIN insert jack and drive audio into a channel... turn trim control up fully for the channel and the fader on full, and set the PAN control to 12 oclock and punch down the L-R button for that channel. You should hear the audio in ONLY the left ear... Now try the phones in the LEFT INSERT jack... you again should hear the audio in the left headphone only (these jacks are not stereo like the headphones). If you cannot hear anything, then likely somebody has blown that driver in your unit... It is painful and time consuming to repair this... there are hundreds of knobs to pull off and put back on... dozens of screws and cables and to get it all back together. Also make sure ALL of your interconnected equipment is powered from a SINGLE receptacle or power module. Read your user manual thoughroughly. You can get one online download if you need it.
Sep 10, 2011 |
Mackie 1604 Vlz3 16 Channel Mixer