[[email protected]]

I alluded to this in another thread, but it's gotten worse, and
weirder:

I just installed an out-of-the-box Mackie 32.4 in a small TV studio.
Yesterday, it seemed like one of the stereo inputs was not working on
the left channel. Today, I notice that NOTHING is working on the left
channel.

I tried Mackie's tech support subcontractor by phone, but they were
off at training for the day. The troubleshooting section of the manual
suggests disconnecting and reconnecting output cables - I am in the
process of doing that, but I thought I see if anybody here may have an
idea what's wrong.

Outputs in a nutshell: Main XLR outs are connected directly to a DVCAM
recorder. Main 1/4" outs are connected (adapted to RCA) to a
distribution amplifier. Monitor 1/4" outs are connected to a Behringer
A500 power amp. There is nothing connected to any other output.

Inputs are all standard stuff: 6 mics, a Shure pre-mixer, telephone
hybrid, 4 sets of floating 1/4" inputs from (RCA) a routing switcher,
CD player, cassette player, line level turntable. The only oddball
thing is 2 sets of clip store audio feeds from a TV switcher/computer:
They come out on a breakout cable to XLRs, into inputs on the Mackie.
I had to use the pad swich, as they were a bit hot.

I can't get ANY left channel at any output, with the following
qualification: If I pot up a left source very high, then run the
master up and down, I get a quick spurt of audio, as though the left
channel is trying to get through. I have checked all the routing and
switches. There are no PFLs or AFLs engaged. When I swich L-R, I still
can't get any left channel. Later today, I will disconnect everything,
and reconnect one-at-a-time to see if I can eliminate or ID the
problem.

Here's the spooky thing: I originally had a used Mackie SR32.4 in this
application, but discarded it because (among other things) of an
intermittent left channel dropout! I temporarily used a Behringer
SL3242FX-Pro and everything worked fine, except that I didn't have
enough of the right ins and outs. Now I have the Onyx 32.4, and its
left channel does not seem to work at all.

Is there something about my application that could be causing this to
happen to Mackies???

[Laurence Payne[_2_]]

If it had been an older Mackie we'd suspect an internal ribbon cable
problem. But could this be as simple as an insert jack that just
needs a plug pushing in and out a few times.

[Eeyore]

Laurence Payne wrote:

If it had been an older Mackie we'd suspect an internal ribbon cable
problem. But could this be as simple as an insert jack that just
needs a plug pushing in and out a few times.

But it'll go wrong again in a month or so.

INSIST on a brand new ex- factory replacement or refund. It may be that
this is old stock that's sat around too long and developed corrosion.

Graham

[Laurence Payne[_2_]]

On Wed, 03 Dec 2008 17:37:35 +0000, Eeyore
wrote:

If it had been an older Mackie we'd suspect an internal ribbon cable
problem. But could this be as simple as an insert jack that just
needs a plug pushing in and out a few times.

But it'll go wrong again in a month or so.

INSIST on a brand new ex- factory replacement or refund. It may be that
this is old stock that's sat around too long and developed corrosion.

Could be. But a brand new machine just might have got a bit of
packing material in the wrong place. If it IS an insert jack problem
and it clears easily, I'd allow it benefit of the doubt. Of course,
if the problem recurrs, it goes straight back to the store.

[Eeyore]

Laurence Payne wrote:

Eeyore wrote:

If it had been an older Mackie we'd suspect an internal ribbon cable
problem. But could this be as simple as an insert jack that just
needs a plug pushing in and out a few times.

But it'll go wrong again in a month or so.

INSIST on a brand new ex- factory replacement or refund. It may be that
this is old stock that's sat around too long and developed corrosion.

Could be. But a brand new machine just might have got a bit of
packing material in the wrong place.

No, that doesn't happen except in an optimist's mind.

Graham

[Arny Krueger]

wrote in message

I alluded to this in another thread, but it's gotten
worse, and weirder:

I just installed an out-of-the-box Mackie 32.4 in a small
TV studio. Yesterday, it seemed like one of the stereo
inputs was not working on the left channel. Today, I
notice that NOTHING is working on the left channel.

What do you hear at the headphone jack?

[[email protected]]

On Dec 3, 3:42*pm, "Arny Krueger" wrote:
wrote in message



I alluded to this in another thread, but it's gotten
worse, and weirder:

I just installed an out-of-the-box Mackie 32.4 in a small
TV studio. Yesterday, it seemed like one of the stereo
inputs was not working on the left channel. Today, I
notice that NOTHING is working on the left channel.

What do you hear at the headphone jack?

Nothing. I couldn't get ANYTHING on the left, at any output or meter.

But now...

Just before pulling all the cables to try to eliminate possibilities,
I decided to try it one more time, and it worked. I'm going to leave
it running overnight. I did get ahold of Mackie, and the tech thinks
it might be a bad master pot.

[gareth magennis]

wrote in message
...
I alluded to this in another thread, but it's gotten worse, and
weirder:

I just installed an out-of-the-box Mackie 32.4 in a small TV studio.
Yesterday, it seemed like one of the stereo inputs was not working on
the left channel. Today, I notice that NOTHING is working on the left
channel.

I tried Mackie's tech support subcontractor by phone, but they were
off at training for the day. The troubleshooting section of the manual
suggests disconnecting and reconnecting output cables - I am in the
process of doing that, but I thought I see if anybody here may have an
idea what's wrong.

Outputs in a nutshell: Main XLR outs are connected directly to a DVCAM
recorder. Main 1/4" outs are connected (adapted to RCA) to a
distribution amplifier. Monitor 1/4" outs are connected to a Behringer
A500 power amp. There is nothing connected to any other output.

Inputs are all standard stuff: 6 mics, a Shure pre-mixer, telephone
hybrid, 4 sets of floating 1/4" inputs from (RCA) a routing switcher,
CD player, cassette player, line level turntable. The only oddball
thing is 2 sets of clip store audio feeds from a TV switcher/computer:
They come out on a breakout cable to XLRs, into inputs on the Mackie.
I had to use the pad swich, as they were a bit hot.





I can't get ANY left channel at any output, with the following
qualification: If I pot up a left source very high, then run the
master up and down, I get a quick spurt of audio, as though the left
channel is trying to get through.




This would seem to indicate that the problem is at, or after, the Master
fader.

So it could be the master Fader. The Compressor assign switch is between
the master fader and the output so it could be this switch. Between this
switch and the output are the Main Inserts, so it could be a dirty insert
socket.

I would switch the compressor into the Main Outs and see if the input
metering is good or bad under the fault condition. If bad it will probably
be the master fader, if good it definately isn't the master fader. (I'm
assuming the comp isn't already switched into the main outs - if so it could
be a faulty comp or comp pot).

The only thing you can really do is to clean the Main Insert sockets by
plugging a jack in and out a few times, and attempt to clean the Compressor
Assign Switch by switching back and forth a lot. If this doesn't sort it
you will need to send it back.



Gareth.
















Here's the spooky thing: I originally had a used Mackie SR32.4 in this
application, but discarded it because (among other things) of an
intermittent left channel dropout! I temporarily used a Behringer
SL3242FX-Pro and everything worked fine, except that I didn't have
enough of the right ins and outs. Now I have the Onyx 32.4, and its
left channel does not seem to work at all.

Is there something about my application that could be causing this to
happen to Mackies???

[George's Pro Sound Company]

wrote in message
...
I alluded to this in another thread, but it's gotten worse, and
weirder:

I just installed an out-of-the-box Mackie 32.4 in a small TV studio.
Yesterday, it seemed like one of the stereo inputs was not working on
the left channel. Today, I notice that NOTHING is working on the left
channel.

I tried Mackie's tech support subcontractor by phone, but they were
off at training for the day. The troubleshooting section of the manual
suggests disconnecting and reconnecting output cables - I am in the
process of doing that, but I thought I see if anybody here may have an
idea what's wrong.

Outputs in a nutshell: Main XLR outs are connected directly to a DVCAM
recorder. Main 1/4" outs are connected (adapted to RCA) to a
distribution amplifier. Monitor 1/4" outs are connected to a Behringer
A500 power amp. There is nothing connected to any other output.

Inputs are all standard stuff: 6 mics, a Shure pre-mixer, telephone
hybrid, 4 sets of floating 1/4" inputs from (RCA) a routing switcher,
CD player, cassette player, line level turntable. The only oddball
thing is 2 sets of clip store audio feeds from a TV switcher/computer:
They come out on a breakout cable to XLRs, into inputs on the Mackie.
I had to use the pad swich, as they were a bit hot.

I can't get ANY left channel at any output, with the following
qualification: If I pot up a left source very high, then run the
master up and down, I get a quick spurt of audio, as though the left
channel is trying to get through. I have checked all the routing and
switches. There are no PFLs or AFLs engaged. When I swich L-R, I still
can't get any left channel. Later today, I will disconnect everything,
and reconnect one-at-a-time to see if I can eliminate or ID the
problem.

Here's the spooky thing: I originally had a used Mackie SR32.4 in this
application, but discarded it because (among other things) of an
intermittent left channel dropout! I temporarily used a Behringer
SL3242FX-Pro and everything worked fine, except that I didn't have
enough of the right ins and outs. Now I have the Onyx 32.4, and its
left channel does not seem to work at all.

Is there something about my application that could be causing this to
happen to Mackies???

its broken get your dealer to replace it
George

[[email protected]]

On Dec 3, 9:51*pm, "George's Pro Sound Company"
wrote:

its broken get your dealer to replace it
George-

I've tried everything. It is an intermittent loss of left or both
outputs. The Mackie tech I spoke with said some 32.4s have problems
with the master fader, so I guess I'll have to box it up and get an
RMA from Musician's Friend.

Thanks for the help!

[George's Pro Sound Company]

wrote in message
...
On Dec 3, 9:51 pm, "George's Pro Sound Company"
wrote:

its broken get your dealer to replace it
George-

I've tried everything. It is an intermittent loss of left or both
outputs. The Mackie tech I spoke with said some 32.4s have problems
with the master fader, so I guess I'll have to box it up and get an
RMA from Musician's Friend.

Thanks for the help!

you should send it back for a refund then buy one from your local Guitar
Center, they are the retail outlet for Musicians fiend and will give you the
same price as thier internet, if you ask
but then you will have a "local" place to deal with
george

[[email protected]]

On Dec 4, 9:28*am, "George's Pro Sound Company"
wrote:
wrote in message

...
On Dec 3, 9:51 pm, "George's Pro Sound Company"
wrote:

its broken get your dealer to replace it
George-

I've tried everything. It is an intermittent loss of left or both
outputs. The Mackie tech I spoke with said some 32.4s have problems
with the master fader, so I guess I'll have to box it up and get an
RMA from Musician's Friend.

Thanks for the help!

you should send it back for a refund then buy one from your local Guitar
Center, they are the retail outlet for Musicians fiend and will give you the
same price as thier internet, if you ask
but then you will have a "local" place to deal with
george

Unfortunately, my local GC is about 90min away, each way.

[Mike Rivers]

wrote:

Unfortunately, my local GC is about 90min away, each way.

Awwwwwww . . . Too bad the batteries in your electric wheel chair won't
get you that far with the mixer on your lap. Oh, well, pack it pu and
take it to the UPS store 15 minutes away, then wait three weeks for the
replacement to arrive.

Local dealers, even if "local" is a half a day away, can be a real
blessing some times.


--
If you e-mail me and it bounces, use your secret decoder ring and reach
me he
double-m-eleven-double-zero at yahoo -- I'm really Mike Rivers
)