[FlexNet] TNC Compatability with 6pack ROM

[John Papson]

For all those that have purchased a MFJ-1274C or MFJ-1270C for the purpose
of running FlexNet's 6PACK type EPROM.

As produced, these units are not the same as the previous MFJ-1270B /
MFJ-1274B models, as an IC (U40) was added to do memory bank switching.
They will not function correctly without the following simple modification:
	1)	Remove the IC U40. (CD74HCT374E) (Save IC for future use in
case you want to use TNC for normal packet activity.)
	2) 	Jumper Pin #16 to PIN#1 of the IC socket. (this grounds pin
#16)
A small piece of thin solid wire inserted in the socket for U40 will surfice
for the jumper.
After this modification, it will function as a standard TAPR-2 compatable
TNC.
(Same modification is needed for NETROM/TheNet EPROMS)
73
John WB2CIK

(Jon K1IMD,  please add this info to www.northeastflexnet.org page when you
find a free moment.  Tnx. )