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25
Triton® Traction Unit
5 TROUBLESHOOTING
A. Specification
Voltage to Touch Screen
:
J6 Connector
. . . . . . . . . . . . . . . . . 5 VDC ±5%
Display Connector
. . . . . . . . . . .24 VDC ±5%
B. Equipment Required
1.
3/32 in Allen Wrench
2.
Digital Multimeter
C. Touch Screen Troubleshooting Procedure
1.
Remove Side Covers. Refer to 6.1 Side Cover
Removal & Replacement.
2.
Plug unit into an approved power source
and turn unit On with Power Switch.
3.
Observe Motor Control Board LEDs. The
"5V OK" LED should be illuminated and
LED 3 should be flashing. See Figure 5.28.
a.
If LEDs are not working properly, proceed
to step 4.
b.
If LEDs are working properly, proceed to
steps 5 through 9.
4.
Turn unit Off. Remove Touch Screen Ribbon
Cable from "Display" on Motor Control
Board. See Figure 5.29. Turn unit On.
a.
If LEDs begin working properly, replace
Touch Screen assembly. Refer to 6.6
Touch Screen Assembly Removal and
Replacement.
b.
If LEDs are not working properly, refer to
5.15 Power Supply Troubleshooting.
c.
If Power Supply is functioning properly,
replace Motor Control Board. Refer to 6.5
Motor Control Board Removal and
Replacement.
5.
Turn unit Off. Remove Touch Screen Ribbon
Cable from "Display" on Motor Control
Board. See Figure 5.29. Turn unit On.
6.
Set Multimeter to VDC. On Connector J6,
connect the Red (+) Multimeter Lead to
Pin 1 and the Black (-) Lead to Pin 2. See
Figure 5.28. Take reading from Multimeter.
Reading should be +5 VDC.
7.
Connect the Red (+) Multimeter Lead to Pin
6 and the Black (-) Lead to Pin 1 on the
Motor Control Board "Display" Connector.
See Figure 5.30 reading on Multimeter
should be 24 VDC.
8.
If the voltage reads correctly from steps
5 and 6, replace the Touch Screen Assembly.
Refer to 6.6 Touch Screen Removal
and
Replacement.
9.
If either of the voltages are not reading
properly as in steps 6 and 7, replace Motor
Control Board. Refer to 6.5 Motor Control
Board Removal & Replacement.
5.14 TOUCH SCREEN TROUBLESHOOTING
FIGURE 5.28
FIGURE 5.29
FIGURE 5.30
5V OK LED
LED 3
J6
PIN 1
PIN 2
CAUTION
Make certain Multimeter Leads are on the
correct pins and do not short across any
other pins to prevent destruction of the
Motor Control Board.
Содержание TRITON 2841
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Страница 72: ...Triton Traction Unit 70 9 SCHEMATICS Control Board 47801 1 of 3 ...
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Страница 75: ...Triton Traction Unit 73 9 SCHEMATICS Motor Control Board 47803 1 of 2 ...
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