IBM 5110 Series Maintenance Analysis Procedures page 20

P
3
020
(Entry Point E)
START MAP
PAGE 4 OF 5
- Use the customer information recorded earlier
and the customer error code charts to determine
the probable failure area.
- Record the status bytes to aid in diagnosing
intermittent I/O problems (see STATUS BYTES
and DISPLAY REGISTERS in the Diagnostic
Aids section of the MIM).
Exit to the appropriate MAP :
-INTERNAL TAPE UNIT
Go To Map 0300, Entry Point B.
-5114 DRIVE 1 (only use this Map if the 5110
does NOT have an internal tape drive)
Go To Map 0310, Entry Point A.
-DISPLAY
Go To Map 0500, Entry Point A.
-TV MONITOR
Go To Map 0510, Entry Point A.
-KEYBOARD
Go To Map 0600, Entry Point A.
-PRINTER
Go To Map 0810, Entry Point A.
-BSCA, ASYNC COMM-SERIAL I/O, PARALLEL
I/O
Go To Map 0830, Entry Point A.
-AUXILIARY TAPE UNIT
Go To Map 0850, Entry Point A.
-DISKETTE DRIVE
Go To Map 0880, Entry Point A.
-PROCESS CHECK
Go To Map 0420, Entry Point A.
(Step 020 continues)
E F G
J
M N
2 2 2 3 3 3
MAP 0200-4
(Step 020 continued)
-ALARM
Go To Map 0900,
Entry Point D.
-5110 SWITCH CHECKOUT
Go To Map 0900,
Entry Point F.
-MACHINE CHECKOUT
Go To Map 0900,
Entry Point A.
-If the failing area can not be
identified from the list above:
Go To Map 0900,
Entry Point C.
021
Go To Map 0420, Entry Point A.
022
Go to Step 020,
Entry Point E.
023
Bad display assembly (see MIM 204).
024
The vertical frequency may be out of
adjustment (see MIM 247 for adjustment).
*************
*
CAUTION
*
*************
High voltage is present.
If this adjustment has no effect
Go To Map 0500, Entry Point A.
025
Go To Map 0500, Entry Point A.
026
Go To Map 0420, Entry Point A.
01JAN79
EC 836600
PEe 835541
MAP 0200-4
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