Technical data

Self-Test Descriptions, Continued
Checks the NVR for valid data. If the NVR is not initialized,
a register test is performed on all of the NVR locations and
the NVR is initialized. If the NVR is initialized, only the
temporary locations are tested in the NVR.
TOY Test
Checks to see if time has been set in the TOY. If not, a test of
all the TOY registers is performed. This test writes/reads all
possible values a TOY register can hold.
Refer to Table 5–5 and Table 5–6 for information on running all
self-tests.
LCSPX/SPXg/gt
Self-Test (T 2)
This is the self-test for 2D graphics or other graphics.
Setup Notes
DIAGENV = 2 and requires a 29-24795 total loopback
connector installed in the communication port.
The front panel alternate console switch must be in the down
position for the graphics console, or in the up position for the
DZ port.
This test takes approximately 20 seconds. Press HALT to
gain control of the console.
The following tests are included:
Register tests
Scanproc tests
VRAM Tests
FIFO Tests
Scanproc drawing operation tests
Video output tests
Continued on next page
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