(no subject)
Apr. 15th, 2006 12:05 amKorg Polysixes - one - casing needs mild repairs, keyboard refurbishment (cleaning should bring it back, if not, then new rubbers). Other one - needs keyboard refurb (now completed), ground wire resoldering, and one new voice chip.
There's nothing quite like spending ages trying to figure out a fault, then realising that the solution is staring you in the face. Old analogue synths seem to always provide little illuminating diodes on each voice circuit - this indicates if a voice has failed, for example. The constant tone one synth was emitting, which could have been a stuck envelope generator, a bad earth, or a stuck key, was changing - sometimes - when I pressed a key. Watch the lights... and there it goes. Assign voice 1, 2, 3 (stick)... 4, 5, 6.
Swap chips between channels, and the stuck voice moves with it.
Swap between synths, and there it goes. Swapped keyboards to verify no other faults with the unit with a half-silent keyboard, after I'd assumed a broken wire/trace only to have Siani tap a key and it played.
Now, it is much-deserved bedtime I think. Tomorrow I will maybe get a new soldering kit, and if that means going to Edinburgh. an 8-way XLR loom for my TX816.
New graphics card makes dashboard appear faster, so must be worth the premium! Updating the firmware gave me a "Oh shit" moment, though - ATI say very clearly "Tiger users MUST boot in 'safe' mode - hold down shift".
Yeah. So the Mac spent AGES booting, and revved the fans up to full tilt. Just as I thought it was going to go tits up, the powermate flashed blue and I got the login screen, and all went well for the card revision.
There's nothing quite like spending ages trying to figure out a fault, then realising that the solution is staring you in the face. Old analogue synths seem to always provide little illuminating diodes on each voice circuit - this indicates if a voice has failed, for example. The constant tone one synth was emitting, which could have been a stuck envelope generator, a bad earth, or a stuck key, was changing - sometimes - when I pressed a key. Watch the lights... and there it goes. Assign voice 1, 2, 3 (stick)... 4, 5, 6.
Swap chips between channels, and the stuck voice moves with it.
Swap between synths, and there it goes. Swapped keyboards to verify no other faults with the unit with a half-silent keyboard, after I'd assumed a broken wire/trace only to have Siani tap a key and it played.
Now, it is much-deserved bedtime I think. Tomorrow I will maybe get a new soldering kit, and if that means going to Edinburgh. an 8-way XLR loom for my TX816.
New graphics card makes dashboard appear faster, so must be worth the premium! Updating the firmware gave me a "Oh shit" moment, though - ATI say very clearly "Tiger users MUST boot in 'safe' mode - hold down shift".
Yeah. So the Mac spent AGES booting, and revved the fans up to full tilt. Just as I thought it was going to go tits up, the powermate flashed blue and I got the login screen, and all went well for the card revision.