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<DIV><FONT face=Arial>Uh, last I looked, each set of 6 solenoids had a
fuse. (.. and so he ambles out to the shop) I randomly checked
three solenoids from a collection of mine and all three read 12.4 ohms.
While I was at it I looked at an old 1992 and 1997 driver board and they both
had the same basic design with a fuse (f2, f3, f4, etc) for each header of 6
solenoid groups. Their basic driver board design hasn’t changed much over
the years ......... just the driver CPU and it’s support
components.</FONT></DIV>
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<DIV><FONT face=Arial>I have a PDS unit installed in a piano here at home and in
the day of MIDI flowing freely on the internet I was able to d/l some bluegrass
MIDI’s and assigned a zone on the keyboard to play each instrument of four
.... bass, banjo, fiddle, guitar. (computer driven using a 128 plus as a
translator) The resulting data traffic was so intense and involved it
locked up the CPU’s and I had to turn the thing off to get them to reset
............ but it never caught fire. Over time I heated up
(abused) enough solenoids to seize up about half of them but they never blew any
fuses. By the time I turned it off for the last time I had enough MIDI
files to rock the shingles off this house for hours non-stop. (Donna
Summers, Ike and Tina Turner, Aretha Franklin, Blondie, lots of Rolling Stones,
some Beatles, and a choice few from this century) The hammers got hard as
a rock and the action got really loose but the player still rocked.</FONT></DIV>
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<DIV><FONT face=Arial>QC at PDS has slipped a bit lately I agree. Each kit
I’ve installed lately has had something missing or the wrong version of cable
etc. After amassing a collection of PianoDisc doodads over the decades
I’ve managed to get through most of their oversights with inventory laying
around. I can live with the changes. It’s the process I have to go
through to get things rectified that I have major issues with. The last
one took over 30 phone calls and I think it was 2 and a half months in
duration. I just tuned that installation a week or so ago. The
customer is totally happy with the player. He’s using an iPad to drive
it.</FONT></DIV>
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<DIV><FONT face=Arial>A smoky smell is a fuse that did it’s job
........ most likely. I’ve had a few. I swapped out the
offending stinker (PCB) and was able to make the customer happy. It
happens. Take a deep breath, pour yourself a tall frosty one and dream
about fine babes delivering pianos.</FONT></DIV>
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<DIV>If a bad solenoid blows a board, wouldn't a good design protect the board
with a fuse or breaker. Much cheaper than a new
board.<BR></DIV></FONT></DIV></DIV></BODY></HTML>