TM 5-3810-307-24-1-1
Figure 2-3-15. APC 100 Input Fuse
(4)
If power, ground, and input fuse
are all good, APC 100 control box
must be replaced.
(2)
Remove screws from connector
b.
If any one of the APC 100 LEDs does
end of box and slide pc boards
not light, APC 100 may still function, but
halfway out of box.
should be replaced as soon as possible.
(3)
Ensure correct EPROM is
c.
If the three APC 100 LEDs perform
installed, refer to Figure 2-3-17.
correctly, but the TRANSmission RPM/
The correct EPROM is Clark
PRESSure indicator does not light, the
#4500828V1.0 or V1.1.
APC 100 has power but no output.
Check the output fuse in the APC 100
CAUTION
control box.
The glue that retains the EPROM chip is
(1)
Remove control box from fuse
very tough and the pc boards are very
and relay box.
fragile. Extreme care must be taken
when replacing EPROM chip. When
(2)
Remove screws retaining bottom
installing EPROM chip, be sure that
cover and slide pc boards
notch in EPROM matches notch in pc
halfway out of box, refer to Figure
board. Reverse installation will destroy
EPROM. Do not force any component!
with 5 x 20 mm very fast acting
All pieces assemble with very minor
(FF) 10 A fuse.
effort. Look for cause of the difficulty and
correct before forcing.
(3)
Reassemble and
install
box.
Recheck indicator.
(4)
Ensure EPROM is installed
correctly. Reinstall if necessary
d.
If the red diagnostic LED remains on,
and recheck LED.
there is an internal failure in the APC
100 control box.
(5)
If nothing appears wrong with the
existing EPROM, replace with a
(1)
Remove control box from fuse
new one and recheck LED.
and relay box.
2-3-30
