Roland SH5 problem
Posted: Thu Apr 28, 2011 4:47 pm
I own SH5. All functions work except one thing - every key has same pitch. What can be wrong?
thx
thx
Vintage Synth Explorer Forums
Synthesizer Discussion Forums
https://forum.vintagesynth.com/
Roland SH5 problem
Page 1 of 1
Re: Roland SH5 problem
Posted: Thu Apr 28, 2011 5:10 pm
Quick guess: Most analog monosynths have a jack to patch in an external pitch CV. Usualy, the jack is wired so that when you insert a patch cord the internal keyboard CV is disabled and the external CV is fed to the VCOs. When you remove the plug, the contacts should re-connect the keyboard CV to the oscs. If the jack is dirty, corroded or bent - or a wire is off - this could cause the problem.
Re: Roland SH5 problem
Posted: Thu Apr 28, 2011 8:48 pm
Re: Roland SH5 problem
Posted: Thu Apr 28, 2011 9:46 pm
Also make sure VCO2 Kybd-Follow is switched on. Looks like it isn't, in that photo.
Re: Roland SH5 problem
Posted: Sat May 07, 2011 8:57 am
Problem solved. some ic's were damaged on kb-1 board 
Re: Roland SH5 problem
Posted: Sun May 08, 2011 8:36 pm
Nice fix but for the record which chips..?
Re: Roland SH5 problem
Posted: Sun May 08, 2011 9:24 pm
lm1458 or sth like that
desoldered old ones, soldered new and sh5 works as new
desoldered old ones, soldered new and sh5 works as new