Re: [M100] TPDD2 Data cable pinout?

2016-01-14 Thread Geoffrey Oltmans
OK, after studying the circuits and looking at the notes from Marty Goodman, I *think* I understand what the TPDD2 cable actually does. I'll have to build up a circuit to test, but I do believe I understand the point of the components on the circuit board on the cable are doing. According to the

Re: [M100] TPDD2 Data cable pinout?

2016-01-14 Thread Mike Stein
- Original Message - From: Geoffrey Oltmans To: Model 100 Discussion Sent: Thursday, January 14, 2016 4:13 PM Subject: Re: [M100] TPDD2 Data cable pinout? On Thu, Jan 14, 2016 at 2:38 PM, ultimate quantifier <ven...@hotmail.com> wrote:

Re: [M100] TPDD2 Data cable pinout?

2016-01-14 Thread ultimate quantifier
"Does it work okay?" ya. From: M100 <m100-boun...@lists.bitchin100.com> on behalf of Geoffrey Oltmans <oltma...@gmail.com> Sent: Thursday, January 14, 2016 9:13 PM To: Model 100 Discussion Subject: Re: [M100] TPDD2 Data cable pinout?

Re: [M100] TPDD2 Data cable pinout?

2016-01-14 Thread John R. Hogerhuis
I'm pretty sure you can buy those connectors. There was a lady I talked to a long time ago who had built her own replacement cables for connecting knitting machine to Brother FB100 and IIRC they didn't look kludged. -- John.

[M100] TPDD2 Data cable pinout?

2016-01-14 Thread John R. Hogerhuis
I don't really remember but I don't think anything happens when you turn on the drive. It just sits there. Ron Wiesen may be able to help you... I have a vague recollection of some short BASIC code to send a test command and get a response. I know I've seen it and I thought it was Ron's. You

Re: [M100] TPDD2 Data cable pinout?

2016-01-12 Thread Geoffrey Oltmans
That's useful, and I must confess I was looking at the wrong part of the schematic! ;) I suspected that it must not be a straight through cable, because that would be too easy. From his description it sounds like he ran across three transistors, SOT-23 packages I'm guessing. According to a cross

Re: [M100] TPDD2 Data cable pinout?

2016-01-12 Thread Geoffrey Oltmans
Yep, that makes sense. The inputs to the TPDD should already take care of this on the input side... they are clamped to the Voutput low/high of the buffer. On the flipside, the outputs on the TPDD have diode protection to prevent damage if something is mis-wired, but no way to generate the normal

Re: [M100] TPDD2 Data cable pinout?

2016-01-12 Thread John R. Hogerhuis
On Tue, Jan 12, 2016 at 11:40 AM, Geoffrey Oltmans wrote: > That's useful, and I must confess I was looking at the wrong part of the > schematic! ;) > > I suspected that it must not be a straight through cable, because that would > be too easy. From his description it sounds

Re: [M100] TPDD2 Data cable pinout?

2016-01-12 Thread Lee Kelley
Sorry I looked the body of the email over and couldn't find it then after sending I saw the info in the subject line. But I have not heard of any one successfully reverse engineering one if these. It spears to have "extras" in the cable. Sorry. On Monday, January 11, 2016, Geoff Oltmans

Re: [M100] TPDD2 Data cable pinout?

2016-01-12 Thread Christopher Fox
Here’s a document from Marty Goodman on the subject: http://ratthing.com/club100/tpdd.do christopher On 20160112, 00:10, "M100 on behalf of Geoff Oltmans" wrote: >Does anyone have the pinout for the data cable? The