In the last couple of weeks I bought parts from Syntaur to rebuild the Bender unit and replace the Power switch in my SH-101
I fitted the new 6pin switch as instructed to replace the original 8pin version and the synth powers up and is now pitch stable.
After soldering in the new bender pot (part#4952) and mod switch (part#3569) assembling the bender plate/spring and lever, I set up the centre pitch and checked the voltage of the Mod offset was 0+/-V. However, the pitch will now only bend around +/- 2tones at maximum setting. The old pot (while a bit scratchy) offered more than +/- 12tones.
The MGS-1 handgrip bender performs as before in an upwards direction approx’ 12tones.
So, is this the wrong Pot value I’ve been sent or could it be related to the new 6pin power switch creating a problem?
On the old 8pin switch pin1,2,3,4 were soldered into the board while pin 5+6 from the edge of the board not soldered in. 7+8 were soldered in.
The new 6pin switch had instruction to solder in furtherst from the edge pins 1,2,5,6.
What did the pins on the old 8pin switch do that are now not connected?