FUSES
This instrument contains four fuses. All are accessible from the rear-panel. Two protect
the AC prime power input, and two protect the internal DC power supplies. The
locations of the fuses on the rear panel are shown in the figure below:
AC FUSE REPLACEMENT
To physically access the AC fuses, the power cord must be detached from the rear
panel of the instrument. The fuse drawer may then be extracted using a small flat-head
screwdriver, as shown below:
Fuses #1 and #2
(AC fuses)
Fuse #4
(DC fuse)
Fuse #3
(DC fuse)
Fuse
Drawer
Pry out the fuse
drawer using a
screwdriver.
14
Summary of Contents for 14156
Page 29: ...value This completes the operational check 29...
Page 35: ...WIRING DIAGRAMS WIRING OF AC POWER...
Page 36: ...PCB 158R5 LOW VOLTAGE POWER SUPPLY...
Page 37: ...PCB 170C HIGH VOLTAGE POWER SUPPLY...
Page 39: ...PCB 94H ALARM BOARD...
Page 40: ...PCB 104G KEYPAD DISPLAY BOARD...
Page 41: ...MAIN WIRING POSITIVE UNITS P...
Page 42: ...PERFORMANCE CHECKSHEET 42...