It will take an experienced tech to find the exact failure. Most likely
one or a number of the transistors in the control area are probably
damaged. This area would have to be properly serviced.

Look in to who their authorised service rep is for your area, or you
may have to ship the unit out for proper service.

For add-ons to your equipment, it is best to buy comercialy made units
that the manufacture approves, rather than building your own, unless
you have the proper knowledge of what you are doing, and a solid
background in electronics, and a detailed familiaraty with amplifier
circuit design.




Jerry G.
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