3-20 Service Manual
5060-4xx
HARDWARE TESTS
The following hardware tests can be selected from this menu:
LCD Test
Button Test
DRAM Test
CASCHE Test
ROM Test
Parallel Wrap (if available)
Serial Wrap (if available)
Serial 1 Wrap (if available)
Serial 2 Wrap (if available)
Serial 3 Wrap (if available)
LCD Test
This test verifies the operator panel LCD function.
To run the LCD Test:
1. Select LCD Test from HARDWARE TESTS in the Diagnostics mode.
The LCD test continually executes.
2. Press Return or Stop to cancel the test.
Button Test
This test verifies the operator panel button function.
To run the Button Test:
1. Select Button Test from HARDWARE TESTS in the Diagnostics mode.
With no buttons pressed, several OP (Open) messages are displayed.
2. Press each button one at a time and a CL (Closed) displays in place of OP. The proper operation of each
button can be checked.
3. Press Return or Stop to cancel the test.
OP OP OP OP
OP OP