Color Touch Screen - Sharp SX 1075 Service Maintenance Manual

COLOR TOUCH SCREEN

TM
The Sharp SX bagger includes a three color,
touch sensitive user
interfaces with the Aromat PLC to provide the user
with setup functions and status information.
TESTING
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.
WARNING
USE EXTREME CAUTION WHILE SERVICING A
MACHINE WHILE POWER
UNEXPECTED MACHINE
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
TECHNIQUES TO AVOID ELECTRICAL SHOCK.
SX™
Service and Maintenance Manual
ELECTRICAL COMPONENTS
interface. The screen
IS APPLIED.
STARTUP CAN
TROUBLESHOOTING
SECTION 3 – COMPONENT REPAIR
1. Remove the six screws holding the Frame
Cover, set screws and Frame Cover aside
(Figure 3-82).
Figure 3-82. Frame Cover Screws
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).
Figure 3-83. Measuring 24 VDC on Display
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.
3-30 960714-02B © 2007 I2407