Scan-Graphics CF Series Maintenance Manual page 77

5.1.17 (H) RUN SELF TESTS
When you press <H> to select self tests, the scanner will perform up to nine self tests.
( The scanner does not use tests 7, 8 and 9 if the display system is not installed.)
Self Test 1 CPU RAM:
Self Test 2 Cals Board:
Self Test 3 CCB Line Generation:
Self Test 4 IP SCB Section:
Self Test 5 IP Convolution:
Self Test 6 Camera Response:
Self Test 7 Display Memory:
Self Test 8 Display Interrupt:
Self Test 9 Display DMA Completion:
This test the random access memories on the CPU Board.
This tests the random access memories on the CALS Board.
This tests the End-of-Line interrupt signal generation of the CCB Board.
This tests the resolution control circuit of the Image Processor Board.
This tests the convolution and area averaging function of the Image
Processor Board.
Not currently implemented.
This tests the random access memories on the Display Board.
This tests the interrupt function of the Display Board.
This tests the DMA function of the Display Board.