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Topic: Audio problem with Elmo 16 CL
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Leo Enticknap
Film God
![](http://www.film-tech.com/ubbmembers/534a.jpg)
Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000
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posted 07-19-2017 02:29 PM
I'm not familiar with this specific model, but agreed with Rick - sounds like (excuse the pun!) a bad capacitor or transistor in the preamp stage.
Is there a separate line level and amplified (extension speaker jack) output? There was an arrangement on some either Elmo or Eiki projectors, whereby if you inserted a stereo 1/4" plug into the single jack it gave you line level, but a mono one gave you speaker level. Can't remember any more than that.
If you haven't tried anything other than the projector's internal speaker, hook up a 1/4" to RCA cable, with the other end into a hifi amplifier, PC audio card input, or whatever. Starting with the volume on the projector right down, raise it SLOWLY AND GENTLY to see if you can hear the interference at the other end. If you can, it's a problem in the amplifier module (or, just possibly, the A-chain). If you can't, the internal speaker is bad.
If it is the amplifier module or A-chain, you need an electronics geek who is comfortable troubleshooting printed circuit boards. If you hear irregular cracking while you adjust the volume control, which ceases to vary when you stop adjusting, the potentiometer in the volume control is bad.
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