[comp.sys.ibm.pc.hardware] Help: location of jumper for optional LED

chchoi@eng.auburn.edu (Cheong Hyeon Choi) (04/16/91)

 Hi, there.

 I got a trouble to connect the optional LED wire to ST-11R controller.
 I have successfully installed ST-11R h/d controller in my IBM-XT clone,
 but I couldn't locate the jumper for the optional LED wire. ST-11R has
 three jumpers only, so I have tried all the jumpers for the LED wire
 (for indicator of h/d's read/write). But all combunations do not work.
 I don't understand this problem because obviously this ST-11R is supposed
to have the jumper for optional LED wire. Also I tried to get the manual
but I can't. Please help me. If you know BBS number of Seagate or location
the jumper for the LED, please let me share your valuable information.

Thank you in advance. 

reagan@eniac.seas.upenn.edu (Matthew T Reagan) (04/17/91)

In article <chchoi.910415222743@banana.eng.auburn.edu> chchoi@eng.auburn.edu (Cheong Hyeon Choi) writes:
>
> I got a trouble to connect the optional LED wire to ST-11R controller.
> I have successfully installed ST-11R h/d controller in my IBM-XT clone,
> but I couldn't locate the jumper for the optional LED wire. ST-11R has
...

I'm also using the ST-11R controller (with an ST-124 drive) and I also
have found no jumpers--mainly because they are located on the drive itself!
Whether this applies to the particular drive you have I can't say, but check.
By the way, does anyone know where I could purchase such an extension
LED?  My 'homemade' extension is rather crude.

/------------------------------------------------------------------------\
|Matthew Reagan, ChE'94                      |reagan@eniac.seas.upenn.edu|
|Box 0587, 3700 Spruce St.                   \---------------------------|
|Philadelphia, PA  19104-6011                 | "Knowledge is power,     |
|University of Pennsylvania, SEAS             |  but ignorance is bliss" |
|(215) 573-6274                               \--------------------------|
\------------------------------------------------------------------------/