All,
I believe the U-4 chip was defective and should be a 100% warranty repair.
The IUCN5891A chip wouldn't even work if it was installed reversed.
Ground to Out 4
Clock to Out 3
Serial Data In to Out 5
Strobe to Out 1
Out 1 to Strobe
Out 2 to?Serial Data In
Out 3 to Clock
Out 4 to Ground
Out 5 to Serial Data Out
Out 6 to Logic Supply
Out 7 to Output Enable
Out 8 to Load Supply
Load Supply to Out 8
Output Enable to Out 7
Logic Supply to Out 6
Serial Data Out to Out 5
I DON'T THINK SO!
Keith - KA6ASJ
