Tech Talk-Questions about Equipment Problems : LUSENET : 3D Audio's Music Business Forum (SSS Temp) : One Thread

I have a Yamaha SPX-90 signal processor that doesn't initialize properly. When switched on relay RY-102 clicks slowly in and out (RY-101 OK) in a rhythmic pattern, parts of the LEDs flash in a pattern and only top line of the display lights. The pattern seems to occasionally change when I turn it and off.

The power supply and battery are OK. I tried reinitializing the unit but no luck. I also tried pulling the EPROM and powering it up but got the same results.

Any ideas? Since there are two relays RY-101 and RY-102, I may try switching them if they are the same. I hate to throw the thing out but I'm almost ready to ditch it. At this point I don't have any service documentation.


Mark WIlcove

Asked by Mark Wilcove ( from on February 18, 1998.

-- Mark Wilcove (, February 22, 1998


Position available immediately for electronics service technician for Video Sound Technology in Pasadena, CA. Prefer experience in servicing keyboards and synthesizers, as well as other musical instruments/mixers/electronic devices. Very friendly, low-key environment. Call Dave Segimoto at (626) 794-8196 or email (I would recommend calling, as I don't know how often Dave checks his email!).

I am posting this as a favor, so please do not reply to me or get mad at VST in the event that this is an inappropriate posting (in which case, you *may* reply and flame the heck out of me!).

-- Ken/Eleven Shadows (, April 06, 1998.

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