dead outputs on 2 896HD

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Discussion related to installation, configuration and use of MOTU hardware such as MIDI interfaces, audio interfaces, etc. for Mac OSX
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RayS
Posts: 30
Joined: Thu May 19, 2005 10:01 pm
Primary DAW OS: MacOS
Location: Hudson,PQ.

dead outputs on 2 896HD

Post by RayS »

I recently used my 2x896 HDs on a european tour and in the last city I got some problems with dead outputs on both machines.....3 on the first one and 1 on the other....I know I will have to send them back to motu for repair but what I can't figure out is what could have caused this? I was told maybe I inadvertently switched on the phantom power on the M7CL board but that was ruled out , I was also told it is not unusual to zap motu outputs with just static???

Any thoughts???
The funny thing here is that I can see modulation from 3 of the outs but there's no audio ??? all other outputs are fine.........and I was able to do the show with an aggregate device of the 2 units.......

thanks

Ray
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Dwetmaster
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Post by Dwetmaster »

I've had this problem and it came from a dead opamp at the entrance of the channel preamp. For me it was caused by plugging a 1/4 Jack when Phantom pwr was on.
MacPro 8Core 2.8GHZ 16GB RAM OSX10.8.3
MacBook Pro 17" Unibody 2011 OSX10.8.3
896mk3, BLA Modded 896HD, BLA Microclock, MTP-AV, Yamaha KX-8, CME VX-7 Mackie Ctrl, megadrum, Presonus C-S,
DP8.04, Bidule, M5 3, Ethno 2, BPM 1.5 Kontakt4, BFD2, SD2, Omnisphere, Wave Arts P-S5, Altiverb7, PSP VW & OldTimer, VB3, Ivory 2 Grand, True Pianos, Ozone 5, Reason 4, AmpliTube3, Bla bla bla...
A few El & Ac basses & Guitars, Hammond A-100.
RayS
Posts: 30
Joined: Thu May 19, 2005 10:01 pm
Primary DAW OS: MacOS
Location: Hudson,PQ.

Post by RayS »

Dwetmaster wrote:I've had this problem and it came from a dead opamp at the entrance of the channel preamp. For me it was caused by plugging a 1/4 Jack when Phantom pwr was on.

I never used the inputs ..only the outputs, so unless I was sending 48V from the M7Cl (which I wasn't) plus the problem occurred on 2 different 896s.

Did you get yours repaired at MOTU or did you find a repair shop in MTL???

Thanks

Ray
RayS
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Dwetmaster
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Post by Dwetmaster »

I had mine done @ BlacklionAudio in Chicago.
http://www.blacklionaudio.com/
MacPro 8Core 2.8GHZ 16GB RAM OSX10.8.3
MacBook Pro 17" Unibody 2011 OSX10.8.3
896mk3, BLA Modded 896HD, BLA Microclock, MTP-AV, Yamaha KX-8, CME VX-7 Mackie Ctrl, megadrum, Presonus C-S,
DP8.04, Bidule, M5 3, Ethno 2, BPM 1.5 Kontakt4, BFD2, SD2, Omnisphere, Wave Arts P-S5, Altiverb7, PSP VW & OldTimer, VB3, Ivory 2 Grand, True Pianos, Ozone 5, Reason 4, AmpliTube3, Bla bla bla...
A few El & Ac basses & Guitars, Hammond A-100.
RayS
Posts: 30
Joined: Thu May 19, 2005 10:01 pm
Primary DAW OS: MacOS
Location: Hudson,PQ.

Post by RayS »

Dwetmaster wrote:I had mine done @ BlacklionAudio in Chicago.
http://www.blacklionaudio.com/
Hummm, they told me I had to get them fixed first and then send them in for the mod????


Ray
RayS
Hayman
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Post by Hayman »

RayS
Posts: 30
Joined: Thu May 19, 2005 10:01 pm
Primary DAW OS: MacOS
Location: Hudson,PQ.

Post by RayS »

Yes, I had seen that post prior to posting about my own troubles, I might send this to motu techlinks,

Thanks

Ray
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