Rowe Tonarm Cable..

foxtrotxray · by **foxtrotxray** » Sat Jul 11, 2015 8:08 pm

Hey guys -
Two related questions -
(1) Is the pinout for the tonearm connection (round plug with 7 pins to two RCA connections) the same across all 1100 mechs? (And possible 1200 mechs?)
(2) Does anyone have the pinout? If they're not the same, then looking for mid-run 1100 mechs, for MM5 / MM6 machines.

Mine's been horribly hacked and resoldered on both ends (plug on the tone-arm assy and the cable) multiple times, so I'm redoing it. I want to make sure I have the pins correct. My manual doesn't have the pinouts for this cable, d'oh.

Thanks guys! Have a weekend!
-Mike

Rob-NYC · by **Rob-NYC** » Sat Jul 11, 2015 9:36 pm

Mike, this is the pinout of the old 1100:
http://www.verntisdale.com/schem/jbm-200.jpg
AFAIK they are all the same.
As for your question about booting the lever, the cam lobe lowers far enough from the apex that it no longer has much effect by the time it has turned approx 180º. The basic design here didn't leave enough clearance (fudgefactor) to compensate for wear, but thus fix is easy enough.

Rob

foxtrotxray · by **foxtrotxray** » Sat Jul 11, 2015 10:33 pm

Rob-NYC wrote:Mike, this is the pinout of the old 1100:
http://www.verntisdale.com/schem/jbm-200.jpg
AFAIK they are all the same.
As for your question about booting the lever, the cam lobe lowers far enough from the apex that it no longer has much effect by the time it has turned approx 180º. The basic design here didn't leave enough clearance (fudgefactor) to compensate for wear, but thus fix is easy enough.

Rob

Ah, thank you! My MM5 manual (and MM6 supplement) doesn't have that diagram in it!

I'm printing that out and inserting it into my manual for future reference.

Edit: See my update to the mech thread. I got it, whohoo!