JV-30 Dead keys & Blank Screen

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Rolando
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Joined: 04:23, 25 May 2017

JV-30 Dead keys & Blank Screen

Post by Rolando »

I was sent a Roland JV-30 for repair, hoping I could fix a dead key and blank screen, and a tuning issue. I can solve the tuning, but only until I can get the blank screen fixed and how to troubleshoot a dead key. Underneath the keys, the second F and A are marked with a pen. Possible dead keys.
I cleaned the used unit and fixed some sticky buttons. Have not yet checked for sound signal. I changed the button cell battery, too. Can ANYONE suggest first steps to repair possible dead keys on a JV-30?

ROLANDO
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