From: JF Mezei [jfmezei.spamnot@videotron.ca]
Sent: Monday, March 26, 2001 9:47 PM
To: Info-VAX@Mvb.Saic.Com
Subject: Re: MicroVax II problem

re: console output not seen.

Have your tested you console "terminal" with another microvax II to ensure
that your "terminal" provides the right modem controls to allow the data to
flow properly ?

Looking at the console module (the module with the battery, switches and display:.

The console port 

5 4 3 2 1 
 9 8 7 6

The ribbon connector (black, small) (J3)
1 2 3 4 5
6 7 . 8 9



1 is ground
2 goes to the cpu board through j3-7
3 goes to the language selection switch  and then to J3-4 unless language
selection switch is at the T

4 is not connected
5 goes to speed selection switch, but after that, no direct connection
6 is not connected
7 goes to cpu via J3-8
8 goes to cpu via a resistor and then J3-8 (yes, the same as pin 7 !)
9 isn't conected


Isn't it unlikely that a serial chip would fail only partially ? If a chip
fails, isn't it more likelt that it will fail completly ? 

I suspect wiring problems.