20 Jan
2004
20 Jan
'04
3:04 a.m.
I pulled it from a Televideo 910 terminal logic board. It is a 40 pin
DIP with no other markings except a 1983 date code. Also, this chip is
NOT in the manual for the TVI 910 on the page describing the board
components. It seems that my (actually 2) terminal logic boards are
later versions than what is described in the manual. The manual has
no mention of the 2057400 chip but my terminals both use it. My problem,
other than having no idea what the IC does, is that I have only one
chip. Both terminals work.
Eric