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Sounds were garbled so I thought I would replace the battery for a friend but where is it?

MTH 30-2166-1   CP SW8 Switcher  circa 1999.........ProtoSound.

The manual says it has the "white" 9 volt battery but his unit does not have a battery or the clip to attach one.  The small black box marked QSI does not seem removable or where the battery may be?





Last edited by Soo Line
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Thanks for the clarification John.

You are correct......I read the box wrong.  Indeed it is -0 not -1.

But MTH used the same manuals for both which confused me.

So simple............back in 1999................We've certainly come a long way !!!!!!  

No bell on this puppy just noise that is suppose to sound like a horn.


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