plug-in assemblies (para 37) before meas-
or resistors between S7902A and S7902B
uring resistances.
are defeotive.
a. use the wiring diagram (fig. 11) and
oheck for broken jumper leads between
switch oontacts and between decks. Check
also for oold solder joints, or large masses
of solder whioh maybe shorting two con-
tacts together. Cheek for open or shorted
switch oontacts.
b. Use the ohart below and oheck S7902A
and S7902B for open resistors or for re-
sistors with ohanged values. Remove all
22
