Control Data Corporation CDC CC63X Hardware Maintenance Manual page 85

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CHARACTER RAM FAIL
RAM FAIL XXX X XX XX
GRAPHIC FAIL XXXX XX XX
GRAPHIC FAIL
ROM FAIL XX XX XX
NVM ALTERED (applicable to terminals with
enhanced firmware) or
NVM FAIL (applicable to terminals without
enhanced firmware)
COMM FAIL
KEYBOARD FAIL
TIMER FAIL
BATTERY LOW
PORT A FAIL
PORT B FAIL
KBD CLOCK FAIL
EXT KBD LOOPBACK FAIL
INTERNAL MODEM CHECKSUM FAIL
INTERNAL MODEM UART FAIL
INTERNAL MODEM LOOPBACK FAIL
SERIAL PORT TEST SWITCH ENABLED
TEST SWITCH ENABLED
Test 2 - Either the host or the terminal operator can initiate
test 2 while the terminal is in CYBER mode. If host initiated,
the test, upon completion, returns a response (positive or
error) to the host. This test is similar to test 1, but it does
not perform the internal modem UART or loopback checks if the
terminal is online. When locally-initiated (keyboard), the test
loops as long as no errors occur or the operator stops it; THIS
PROVIDES AN EXCELLENT METHOD OF ISOLATING INTERMITTANT
PROBLEMS. Locally-initiated testing is performed offline, and
in this case, all internal modem tests are run (if modem
present).
Initiate
62940034 E
For local mode only. (Unit is powered on.)
1. pullout TEST switch and press RESET.
2. When test 1 indicates a successful
completion, push TEST switch in.
3. Press F1 key (CYBER mode). (If access code
is asked for, enter after pressing Fl.)
4. Press SETUP key.
5. Verify second box from left (F2) indicates
terminal is OFF LINE. If terminal is ON
LINE, press F2 key to place it OFF LINE.
6. Press and release F1 key. Press and hold
CTRL key while pressing the
=
key and then V
key.
6B-3
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