3-3. Link Controller Initialization
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3-5
U3-1021
Westinghouse Proprietary Class 2C
7. The LC module will perform a set of self-test diagnostics. Figure 3-1 illustrates
the diagnostic LEDs on the LC Electronics module (refer to Table 2-9 for LED
descriptions).
8. Observe the following indications:
— Each of the set of eight LEDs (1 - 8) will be individually lit and then turned
off in sequence starting with LED 1. When this test is completed, all LEDs
(except P and C) should be off.
— The 640 Kbytes of user RAM will be tested. The amount tested will be
displayed on the external personal computer. If the test encounters an error,
LED 1 will be lit and an error message will be written to the external
personal computer.
— If the LC boots successfully, the following will occur:
— Only LED P (Power OK) will be lit.
— The screen on the PC will display the A: \ > prompt.
— The internal disk on the LC card is known as Drive A.
— The external floppy is known as Drive B.
Figure 3-1. Link Controller Module LED Positions (Top View)
P C E I 1 2 3 4 5 6 7 8
Status LEDs
Electronics Module
