Hi,
My Agilent 8563E developed ¡°ERR 456 AMPL¡± after I dig out from storage today. Reading through the Service Guide yield no hints. All the yellow LED in A2 light up correctly which I presume all power ok.
?
Believe this error is related to A5 IF board but don¡¯t know how to start the troubleshooting.
BRGds/Stanley
