P
AGE
26
46210/46220-0998 <90-00036>
462xx-xx REV ____
WARNING:
REMOVE fuse
before removing
or inserting module
Use wrist strap
ESD SENSITIVE DEVICE
POWER
ALARM
uP LED
MSTR
AUX
GREEN = RCV
RED = XMT
Front View
Place Thumb
Here
Side View
If one of the alarm interface boards inside the unit is removed or
disconnected, a point-64 alarm failure is generated in the alarm
display reporting that board’s alarms.
Connect a dumb terminal or personal computer operating as a
dumb terminal to the master port for maintenance purposes.
Refer to the Printer Syntax chapter.
To replace the fuse:
1.
Open the 46210/46220 (refer to Fig. 20).
2.
Pull the power supply and CPU boards down from the other cir-
cuitry (refer to Fig. 21).
3.
Replace the fuse (F1) on the power supply board with a GMT-type
fuse rated at one ampere (refer to Fig. 22).
4.
Push the power supply and CPU boards back into place and close
the unit.
5.
Fuse replacement complete.
F
IG
. 20 - O
PENING
THE
46210/46220
OPERATION
