Shouldn't be too difficult to troubleshoot; have you got the manual?
Start by checking the 24V > 12V regulator...
m
----- Original Message -----
From: "Jim Brain via cctalk" <cctalk at classiccmp.org>
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
Sent: Monday, July 13, 2020 2:18 PM
Subject: TM848 repair?
Anyone on list repair or rehab Tandon TM848 drives? I
have a 4 or so of
the slimline drives from some Tandy Model 12/16b units that don't seem
to spin at all, and I've hooked them up to the same PSU that a TM848E
successfully runs on, so I am guessing it's not a PSU issue. (Though, my
understanding of 8" drives is extremely minimal, so...)
If I could get just 2 of them working, that'd put a few 12/16b units
back in operation.
Jim
--
Jim Brain
brain at
jbrain.com
www.jbrain.com