RADIOMETER ABL 77 Series User Manual

Chapter 3: Troubleshooting ABL77 Service Manual
Reference Table, Continued
Problem Probable Cause Corrective Action
Screen – Touch Screen non
functional
Main CPU Replace the main CPU. See
Chapter 5, Dismantling
Description: there is no response
when the touch screen is pressed
LCD Display Cable Check the connection. Replace
as necessary. See Chapter 6,
Replacements
Touch Screen Controller Board Replace the board. See Chapter
5, Dismantling
Touch Screen Panel malfunction Replace the panel. See Chapter
5, Dismantling
Touch Screen cable Check the connection. Replace
as necessary. See Chapter 6,
Replacements
Barcode scanner connection or
cable
Remove barcode scanner. Shut
down unit. Power up unit and
verify the touch screen is
operating correctly. If so,
reconnect barcode scanner and
verify the touch screen is still
operating correctly. If not,
replace the barcode scanner.
Screen – Touch Screen display
malfunction
LCD Display Panel Replace the panel. See Chapter
5, Dismantling
Description: variety of incorrect
displays (e.g. missing pixels or
no text)
LCD Display Cable Check the connection. Replace
as necessary. See Chapter 6,
Replacements
Screen – Touch Screen
Description: pressing in one
area of the screen produces an
effect on another area of the
screen
Screen is not properly calibrated Proceed to Chapter 4, Test and
Calibration Procedures to
recalibrate the touch screen.
Continued on next page
3-14

RADIOMETER ABL 77 Series Specifications

General

Brand	RADIOMETER
Model	ABL 77 Series
Category	Measuring Instruments
Language	English