master emitter: PE 420E
(cont’d)
3
attenuation switch
4
line input (0.25in jack)
1
mounting hole
5
line output (BNC jack)
2
3-mode performance indicator
Solid = normal
Flashing 1x/sec = inoperative diodes –
call for service
Flashing 3x/sec = attenuation switch is
set improperly – see 3A
7
transmission frequency switch
6
power
2
3149 SS400 User Guide 7/11/02 4:20 AM Page 8