Log in
Register
Home
Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
News
Members
Current visitors
New profile posts
Search profile posts
Features
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Menu
Install the app
Install
Reply to thread
Home
Forums
Pro Audio
Junior Varsity
QSC TouchMix 16 sound problem fixed (other touchmix versions may also get this)
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Brian Ingwell" data-source="post: 215882" data-attributes="member: 890"><p>To add a bit more to this story - we have a TM8 that was exhibiting the same problem. Low and uneven frequency response on Aux 3. I found this thread and took ours apart to find bulging blocking caps. Here's where things get interesting: I spoke to a friend of mine who does authorized service for QSC. Apparently in early production units of the TM's, the circuit boards were labelled backwards for the blocking caps, so although they appear to be installed correctly, they are backwards, meaning that if you send any of those outputs into a console with phantom power on, there's no blocking going on and the caps will fry.</p><p>So if you go to the effort of replacing the caps, check to make sure they are in correctly (positive side of the cap should make continuity with pin 2 of the output XLR - ours are backwards currently).</p><p></p><p>Hope that helps anyone else with this problem.</p><p></p><p>Cheers,</p><p>Brian</p></blockquote><p></p>
[QUOTE="Brian Ingwell, post: 215882, member: 890"] To add a bit more to this story - we have a TM8 that was exhibiting the same problem. Low and uneven frequency response on Aux 3. I found this thread and took ours apart to find bulging blocking caps. Here's where things get interesting: I spoke to a friend of mine who does authorized service for QSC. Apparently in early production units of the TM's, the circuit boards were labelled backwards for the blocking caps, so although they appear to be installed correctly, they are backwards, meaning that if you send any of those outputs into a console with phantom power on, there's no blocking going on and the caps will fry. So if you go to the effort of replacing the caps, check to make sure they are in correctly (positive side of the cap should make continuity with pin 2 of the output XLR - ours are backwards currently). Hope that helps anyone else with this problem. Cheers, Brian [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Pro Audio
Junior Varsity
QSC TouchMix 16 sound problem fixed (other touchmix versions may also get this)
Top
Bottom
Sign-up
or
log in
to join the discussion today!