Help, Anyone know what this is?

From: will emerson <wpe_at_interserv.com>
Date: Mon Mar 2 20:48:05 1998

Tim Shoppa wrote:

> > Found in a box of stuff rescued (via a friend)..FWIW the box this
> > thing was in,
> > was IBM factory labeled... Board, measuring approx 6 in x 3 in. at the
> > top left is
> > a centronix female connector.
>
> How many conductors?

     36, if I counted corectly....

>
>
> > About 3/4 in to the right, is what appears
> > to be a RCA
> > type phono jack.
>
> Is there an edge connector, too?

    Nope.... On the extreme right, is some kind of 4 pin connector (power?)
labeledCN1., next to it (left) is a smaller 7 pin connector, labeled CN10,
Just to the left of
that, is a 6 pin connector. labeled CN9. At the extreme left. is some type of
34 pin
(again, if I counted right) connector (maybe 1/8" thick X 1 3/4" wide), then
(l to r)
some surface mount chips, labelled as follows.

    first one is

                 TEC
           EC-A541
            JAPAN
         9151 E49
Next chip labelled

        TOSHIBA
        TMP90C04 1F
        92094CZ

    Followed by two more, smaller surface mounts, both labelled

    JAPAN 9142
   65256BLFP-121
   00059990


>
>
> > two (memory?) sockets on it, one of which is empty, the other has a
> > label on it, that
> > reads as follows:
> >
> > 239X .STD
> > V0.86
> > 92-2-27 23A7
> > Inscribed directly on the chip is:
> >
> > -150DC
> > 1506NOT
> > (copyright symbol) 1988 AMD
>
> Is there a quartz window under the sticker? This sounds like this
> is an EPROM containing some sort of firmware.

    Yup! There's a window!

>
>
> What other chips are on the board? Are they DIP's or surface mount or ???
>
> Tim.

    Chip (with window) is DIP, others described above. surface mount......

Again, all help greatly appreciated!

                                                                 Will
Received on Mon Mar 02 1998 - 20:48:05 GMT