7 Jan
2014
7 Jan
'14
4:49 p.m.
Not much chance, but I thought I'd ask. It is a capstan driven desktop 8 channel
optical paper tape reader, circa 1980. AC motor, built like a tank, and the capstan still
feels OK.
It shouldn't be too difficult to trace out if not, there are only 11 signals
coming out to a 25 pin connector. Obviously parallel given the logic on the circuit
board.
I'll take some pictures of it and scan the circuit board today.
7 Jan
7 Jan
5:33 p.m.
Date: Tue, 7 Jan 2014 08:49:03 -0800
From: aek at bitsavers.org
To:
Subject: ISO Hitachi JK-260 paper tape reader schematic
Not much chance, but I thought I'd ask. It is a capstan driven desktop 8 channel
optical paper tape reader, circa 1980. AC motor, built like a tank, and the capstan
still
feels OK.
It shouldn't be too difficult to trace out if not, there are only 11 signals
coming out to a 25 pin connector. Obviously parallel given the logic on the circuit
board.
I'll take some pictures of it and scan the circuit board today.
I have one of the rebagged Intel readers. I forget the maker
but I know it isn't Hitachi. By the time I can get you a pinout,
you could have traced yours out and been dumping tapes.
I have made an adapter to use a bidi printer port.
Not much help though as I'll not be near the stuff until this
weekend at the soonest.
Dwight
6:30 p.m.
On 1/7/14 9:33 AM, dwight wrote:
By the time I can get you a pinout,
you could have traced yours out and been dumping tapes.
Things are going a little better, after pulling the board off and reseating
the connectors the capstan motor is spinning now and I can move tape by pushing
the pinch solenoid by hand. I was hoping I didn't have to trace out the H-bridge
and drive circuit. Haven't been able to get the manual movement switch to do
anything yet, so next thing was to check the tape sense microswitch.
4008
days inactive
4008
days old
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