Wanting ir-543 schematics

[jr_00_22]

I am currently in search of 2 ir543 or what I would like more is a schematic for a ir543. The schematics do not to include the buttons on top just the IR receiver part. Can anyone help me out?

[Brian H]

There was a schematic of the IR-543 in Issue #9 of the Circuit Cellar Magazine.
It is listed on this web page archive but the link to it is not working. Probably too old as it was June July 1989.
http://www.dtweed.com/circuitcellar/caj00009.htm

As mentioned in your other thread. The controller chip would have been a custom one.