Question about Yamaha Televison & Video
I have distoration on both channels at any volume. The unit has worked perfect ever since I got back 10 years. I know it would be a big job to change all the output transistors but if you can offer anothe place to look it would be good.
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Posted on Jan 02, 2017
SOURCE: yamaha emx 5000
Your powered mixer does but the model number doesn't match any Yamaha models. Double-check and look for the manual at Yamaha's website. It probably the 300 or the 512.
Posted on Dec 28, 2008
It's a log time ago that I repaired those amps., but I give it a shot.
There's a speakerprotection after the finals, what I remember it's a triac (SAC187, or something like that).
You will find it at a small pcb at the back of the amp. Normally it has three legs but the centre is cut away. If it's down you will measure 0 Ohm at the output, also with a switched off amp.
Thats all I can remember, it was about 25 years ago.
Maybe it helps,
Posted on Jan 30, 2009
If all other functions work for those channels, the most likely problem is the fader itself. These can fail and operate more like switches rather than faders. Without witnessing the behavior, I can not state that for sure. While these mixers are not the hardest to work on, they are time consuming. The faders can be purchased from Mackie directly. If you need to have this repaired, any shop that repairs audio gear should be able to erpair this for you. Where are you located?
Posted on Feb 12, 2009
SOURCE: Connecting two powered mixers
Hi, If you have small electronics knowledge this might help you. First fine in each mixer the amplifiers line In if your mixer has two amplifiers then you have four line In. Disconnect this line from your mixer and build a circuit Line out multiflier. You can use op amp for this application this is a simple circuit. You made two input and four outputs. If you are interested i can send you a schematic diagram.
Posted on Aug 10, 2009
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