Model 350S1G6A
34
Rev C
4.3.4
Interlock Fault (Schematic 10047656)
The Model 350S1G6A is equipped with an interlock connector, which is located on the rear panel. The
interlock circuit can be used to sense the openings of doors to screen rooms, test chambers, and so forth, and
to turn off RF energy when these doors are opened.
NOTE: The Model 350S1G6A is shipped with a mating connector, which has a jumper between Pins 1 and 8
and 10 and 14, installed in the rear panel interlock connector. The unit will not operate unless the interlock
circuit is closed.
4.3.4.1
INTERLOCK FAULT
1.
In the event of an Interlock Fault, the front panel display should read INTERLOCK FAULT
.
2.
Check to see if it is safe to be power up the unit—are there personnel present in the screen room, or are
doors to the screen room open?
3.
After checking for safety, try to clear the Interlock Fault from the front panel by using the RESET switch.
4.
If the Interlock Fault will not clear, check for continuity in the External Interlock Circuit (Pin 1 to Pin 8 in
the connector, which mate with P32 in the rear panel).
5.
Check the voltage on A60 J5, pin 31; it should be < 0.1V.
6.
If the voltage on A60 J5, pin 31 is high, check the interlock line to ground.
4.3.4.2
AC INTERLOCK FAULT
1.
In the event of an AC Interlock Fault, the front panel display should read AC INTERLOCK FAULT.
2.
Check to see if it is safe to be power up the unit—are there personnel present in the screen room, or are
doors to the screen room open?
3.
After checking for safety, try to clear the Interlock Fault from the front panel by using the RESET switch.
4.
If the AC Interlock Fault will not clear, check for continuity in the External Interlock Circuit (Pin 10 to
Pin 14 in the connector, which mate with P32 in the rear panel).
5.
Check the voltage on A60 J5, pin 32; it should be < 0.1V.
6.
If the voltage on A60 J5, pin 32 is high, check the interlock line to ground.
4.3.5
Power Supply Faults (Schematic 10047656)
4.3.5.1
PS2, PS3 and PS4 Fault (DC OK)
The PS3 and PS4 power supplies have a DC OK Output which is normally High (4.5 ~ 5.5V) when the Vout
≤ 80% ±5% and Low (0 ~ 0.5V) when the Vout ≥ 80% ±5%
.
