46
2.
Cord
unplugged/not
plugged in all the
way
3.
Blown fuse at cord
receptacle
2.
Make sure plug
connected securely
3.
Check receptacle
fuse. See section
titled
“
Replacing
Main Fuse
”
for
instructions
LCD Display completely
dark
1.
LCD Contrast out of
Adjustment
2.
Bad LCD or Driver
1.
Adjust Contrast. See
Section titled
“
Adjusting LCD
Contrast
”
.
2.
Replace LCD Driver,
then replace LCD if
Driver alone does
not fix
Control Program Resets
unexpectedly
1.
LCD Bezel
grounding to
control panel
2.
Faulty circuit board
connections
3.
Bad EEPROM
4.
Older Circuit boards
need capacitor
Modification or
capacitor replaced.
1.
Contact TRC
Industries for repairs.
2.
Check to make sure
circuit board power
connections are
secure
3.
Carefully remove
EEPROM 40 pin chip.
Replace chip and
reassemble
controller to verify
EEPROM chip reset.
If unsuccessful,
contact TRC
Industries for repair
4.
Contact TRC
Industries for repair
Control Panel accepts
information but will not run
or continue a program
1.
Optional cutoff
switch faulty.
2.
Optional cutoff
switch staying
closed or out of
adjustment
3.
Material not routed
correctly
underneath the
cutoff switch trip
rod.
4.
Pins 5 and 12
shorted in control
cable.
5.
Bad circuit board
chip
1.
Test cutoff switch
with a multimeter. If
bad, replace. See
section titled
“
Integrated Cutoff
Switch Installation
Instructions
”
for
cutoff switch
replacement.
2.
See section titled
“
Integrated Cutoff
Switch Installation
Instructions
”
for
cutoff switch
adjustment
Содержание 1000 4.5 Hot cutter
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Страница 66: ...Drive Transistor Test ...