SX
™
Service and Maintenance Manual 3-30 960714-02B © 2007 I2407
SECTION 3 – COMPONENT REPAIR
ELECTRICAL COMPONENTS
COLOR TOUCH SCREEN
The Sharp SX
TM
bagger includes a three color,
touch sensitive user interface. The screen
interfaces with the Aromat PLC to provide the user
with setup functions and status information.
1. If the display does not turn on with the machine
or it turns on but nothing is displayed, proceed
to the “Power Problem” section on the next
page. If “ERRF” is displayed in the corner,
proceed to the “Communication Problem”
section on the next page. If “Screen No. Error”
is displayed proceed to the “Program Problem”
on the next page.
1. Remove the six screws holding the Frame
Cover, set screws and Frame Cover aside
(Figure 3-82).
2. With a Digital Volt/Ohm Meter (DVOM) set to a
range capable of measuring 24VDC, contact
the red probe to the 92 connection and the
black probe to the 91 connection (Figure 3-83).
3. If 24 VDC is not displayed, troubleshoot the
wiring between the power terminal blocks and
the display. If 24VDC is displayed, the display
is defective and will require replacement.
TESTING
Figure 3-83. Measuring 24 VDC on Display
Figure 3-82. Frame Cover Screws
USE EXTREME CAUTION WHILE SERVICING A
MACHINE WHILE POWER IS APPLIED.
UNEXPECTED MACHINE STARTUP CAN
CAUSE SERIOUS INJURY.
WARNING
DO NOT ATTEMPT TO SERVICE THE MACHINE
DURING NORMAL OPERATION. KEEP HANDS
AND ARMS CLEAR OF MOVING PARTS.
WARNING
WHEN TESTING ELECTRICAL COMPONENTS
WHILE POWER IS APPLIED TO THE MACHINE,
USE PROPER TROUBLESHOOTING
TECHNIQUES TO AVOID ELECTRICAL SHOCK.
WARNING