Veeder-Root TLS4/8601 Series, Troubleshooting Manual

Page: 19 / 43

Troubleshooting Display Is Dark After Boot-Up Sequence
15
Display Is Dark After Boot-Up Sequence
2. Power input
plug (Item 1 in
Figure 2) is
loose.
3. The wires in the
power input
plug are
pinched under -
neath the termi -
nal’s screws.
4. Wires to the
power input
plug are
attached to the
wrong power
input terminals.
1. Verify power input
plug is fully seated in
its connector.
2. Verify each of the
wires is correctly
seated in each of the
plug’s terminal
clamps. If the
clamps are not
opened all the way
when inserting the
wires into the plug,
the wires can be
inserted behind the
clamps preventing
proper contact.
3. Verify power input
connections (see
Table 1).
Yes Check F1/F7
fuses (Item 5 in
Figure 4).
Yes Verify the AC
Input or DC
Output
cables are
attached and
securely con -
nected (see
Items 3 and
4 in Figure
4).
Yes Check 20-pin
cable (Item 6
in Figure 3)
between Dis -
play/CPU
ass’y and
USIOM board
for loose
plugs, wires.
Yes Replace Dis -
play/CPU
assembly.
Table 7. Display Dark After Boot-Up
Boot-Up Sequence Visual Sequence Symptom Probable Cause
1. Console Powered On at
the breaker
The console follows the normal boot up
sequence until step 5 in Table 2 - Green
LED is On steady, but the display is dark.
See Table 8 below.
Table 6. Troubleshooting Procedure if Console Does Not Boot
Probable Cause Action OK? Action OK? Action OK? Action OK? Action
System Status
08/02/2013 01:01 PM
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