10 May
1999
10 May
'99
10:38 a.m.
ard(a)p850ug1.demon.co.uk (Tony Duell) wrote:
Thanks Tony
I couldn't remember what was there but did remember it was a serial
chip and not a disk interface chip.
--snip--
--snip--
UART, as I
recall, instead of one of the more standard FD-
Actually, it's a USRT chip (Universal Synchronous Receiver Transmitter).
A 2350 IIRC... The video
part was actually a H19 terminal, hard wire to
Yes, a plain H19. You can actually connect one of the rear-panel
connectors to the Terminal Logic Board (Unplug one of the cables from the
3-channel serial card and connect it to the terminal logic board in place
of the cable that goes to the CPU board. Press the 'Off Line' key
(latches down) to put the terminal section into 'local' mode if you want.
If the terminal logic board is working correctly, you should get a beep
at power-on and then a cursor in the top left of the screen (if you have
a working CPU board and the off line key isn't down at power-on, you get
2 beeps, one from the terminal, one caused by the processor).
The first thing should be to get the terminal working. Forget about the
CPU board, get the Z19 parts doing something.
I'd forgotten about the Off Line key. Like Tony says, get the
terminal part working first or did he say "They're Great!" ;)
I don't remember the baud rate, that it was set for, but 9600
seems to stand out in my mind.
Dwight