Re: Early TED/Plus4/C116 Schematics

Date: Sun, 8 Sep 2013 20:43:53 +0000
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I noticed that after the system cooled down the TED worked again, so I need to determine if it’s purely heating or some other issue.

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From: Rob Clarke
Sent: ‎Saturday‎, ‎September‎ ‎7‎, ‎2013 ‎4‎:‎32‎ ‎AM

I assumed from your posting on vintage forum that you'd fixed it by replacing the TED?

On 07/09/2013 05:36, wrote:


Thank you. I just last week upgraded my c-116 to 64K and NTSC using notes from an old post on cbm-hackers list.  Having a bit of weirdness with the TED chip and joystick latching (I think).  I think the TED chip is overheating.  Works most of the time, loads most all Plus / 4 software I have but occasionally the joystick does not respond correctly, after a period of use.  Trying to decipher what’s what.  Thesec-116 drawings may be useful to help me out.

Bill Degnan



From: Bil Herd
Sent: ‎Friday‎, ‎September‎ ‎6‎, ‎2013 ‎10‎:‎43‎ ‎PM

30 year old schematics for early TED.  Will probably have better contrast on
the greyscales tomorrow.

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Received on 2013-09-08 21:00:48

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