IBM 5110 Series Maintenance Analysis Procedures page 19

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009
Does the 5110 display contain wide
horizontal bars similar to a TV set with the
horizontal hold out of adjustment?
Y N
4
010
No more than 25 seconds after RESTART is
pressed, the following events should occur:
1. ABCDEFGH appears on the top line of the
5110 display.
2. ABCDEFGHJKLMNP appears on the top
line.
3. The top line is cleared and either LOADO
or CLEAR WS appears once on one and
only one iine of the 5110 display.
-Press RESTART.
Do all three events occur before 25
seconds, in sequence, after RESTART is
pressed?
Y N
011
-Switch the RUN switch under the covers
to NOT RUN (see MIM 201).
-Switch the DISPLAY REGISTERS switch
to DISPLAY REGISTERS.
(See DISPLAY REG ISTERS in the
Diagnostic Aids section in the MIM).
Do all 1024 positions contain legible,
well-formed characters, with no blank
spaces?
Y N
012
-Switch the DISPLAY REGISTERS
switch to NORMAL.
-Switch the RUN switch under the
covers to RUN.
Go To Map 0500, Entry Point A.
J K L
K L
MAP 0200-3
013
-Switch the RUN switch under the covers to
RUN.
-ObseNe the IN PROCESS light.
-Hold down the CMD key and press the 4 key
on the Alphameric Keyboard.
- Release the keys.
-Press EXECUTE.
Does the I N PROCESS light turn on or
flash?
Y N
014
-Switch the DISPLAY REGISTERS switch
to NORMAL.
Go To Map 0400, Entry Point A.
015
Bringup is OK.
-Switch the DISPLAY REGISTERS switch to
NORMAL.
- Press A TIN to reset the error condition.
Go To Map 0500, Entry Point A.
016
Does an error code appear on the display
after REST ART is pressed?
Y N
017
Are the top 13 lines of the display entirely
blank (there are 16 lines total for the
display)?
Y N
018
Go To Map 0400, Entry Point D.
019
Is the PROCESS CHECK light on?
Y N
444
M N P
01JAN79
EC 836600 PEC 835541
MAP 0200-3
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