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SYMPTOM INDEX (Cond
Symptom
4. POWER MALFUNCTION
5.
CPU ERROR INDICATIONS
Note: (Device check is indicated by INPUT INHIBITED light on due to an error
condition. )
A.
Device not available
B.
Operator cannot use attention-generating keys and/or selector light-pen successfully
C.
Display station always appears busy to control unit
D. Control unit cannot write to, or read from, display station correctly. (Random
characters may appear after CLEAR key operation.)
E.
Error Printouts
1.
Device Checks (no cursor)
2. Device Checks (too many cursors)
*3. Device Checks (parity)
4. Transmit Checks
F.
Read Modified (MDT bit) Failure:
Diagram Sheet or
Direct Action Repair
Sheet 23
Sheet 26
Sheet 26
Sheet 26
Change cards G2, H2, J2.
Sheet
9
Sheet
10
Sheet 7
Sheet 27
1. Selector pen changes designator character correctly, but INPUT INHIBITED lights Change card
02.
2. Selector pen fails to set MDT, and INPUT INHIBITED does not light
Change card M2.
3. Keyboard fails to set MDT
.
Change cards A2, C2.
G.
Programmed audible alarm failure
Sheet 21
H. Keyboard remains disabled after program attempt to enable it
Change card
G2.
I.
Program erase of unprotected data unsuccessful; erase from keyboard successful
Change card
G2.
6. OPERATOR IDENTIFICATION CARD READER MALFUNCTIONS
A. Cards do not feed through reader
Sheet 27
B.
Incorrect number of characters read
Sheet 27
c.
Cursor does not move as card feeds through reader
Sheet 28
*
Requires a formatted buffer
3-6
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