Casiotone CT-701 Service Manual


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Jun 28, 2017
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Dear Techs,
Is any one having a Service Manual, Circuit Diagrams of Casiotone CT-701 keyboard. I have one which works when switched on every time and goes to constant key tones with a long delay. A single key pressed will run around 7/8 seconds before it stops. I suspected the electrolytic caps and checked but mostly they are OK. Near the values. After keeping the unit switched off for a day it will operate again normally for some 10 minutes like. Thanks for any info in advance to find the circuits.
 
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