[rescue] Reviewing some of my old Unix and CP/M systems, plus some searchings

[Curtis H. Wilbar Jr.]

Mr Ian Primus wrote:
>> * For a couple of Sun3/60 plus one Sun3/50. All are
>> orphan of (at least) any
>> kind of screen, hard disk, or keyboard
>>     
>
> On these machines, the ECL monochrome monitors are
> unobtainium. I have been searching for one for years
> to no avail. Only recently did I get an analog Sun
> mono monitor. Those are rare too. Analog mono monitors
> aren't compatible with this machine, unless you have a
> color framebuffer, AFAIK.
>   

I have two of these ECL mono monitors... as I recall both are
working.... but one is dimm (may be correctable).  Currently
though I have to keep one for sure, for my Sun-2/120 and my
early Sun-3 (/50, /60) kit.

Anyone repair/adjust these... what are the common failure modes ?

-- Curt

> If you're lucky, you have a color framebuffer - this
> can be used with many VGA monitors with the proper
> cable.
>
> For the keyboard, the Sun3 keyboard is very rare too.
> But you can use the more common Sun type 4/5/6
> keyboards by making an adapter. The signals are the
> same.
>
> Sun 3 15 pin keyboard connector (at computer) :
>
>     1   RxD0 (keyboard)     8   GND
>     2   GND                 9   GND
>     3   TxD0 (keyboard)     10  VCC
>     4   GND                 11  VCC
>     5   RxD1 (mouse)        12  VCC
>     6   GND                 14  VCC
>     7   TxD1 (mouse)        15  VCC
>
> Type 4/5 keyboard connector (at computer) :
>
>     7          1  GND              5  TxDA (Keyboard)
> 8       6      2  GND              6  RxDA (Keyboard)
> 5   4   3      3  Vcc              7  TxDB (Mouse)
>   2   1        4  RxDB (Mouse)     8  Vcc
>
> (Pinout info from Sun hardware reference)
>
> These machines take SCSI disks, you just need an
> adapter to go between the 50 pin dsub three row
> connector and something else. The Sun 3/60 even has
> space for an internal disk if you do some board
> hacking. (adding the header connector, etc).
>
> If no keyboard is connected, the first serial port is
> used as the console. A terminal connected to port A
> (9600/8/n/1) will work.
>
> -Ian
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