IBM 5100 Maintenance Analysis Procedures page 126

MACHINE CHECKOUT
PAGE
2 OF 8
002
Is the PROCESS CHECK light ()n?
V N
003
Is the 5-inch display dark for
ell
positions of the BRIGHTNESS control?
V N
004
Go t() MAP
0200,
Entry Point A.
005
Go t() MAP 0500, Entry Point A.
008
Go to MAP
0420.
Entry Point A.
OQ7
The machine CRT raster is grossly distorted if it
is absent, is rolling, has a black rather than
a
white background, is greatly reduced in si~e, or
departs significantly from a rectangular shape.
, Is the machine CRT raster grossly distorted?
V N
008
Is the IN PROCESS light on?
V N
009
Are the t()P
13
lines of the display
entirely blank?
V N
882
C 0 E
010
Go to MAP 0400, Entry Point A.
E
2
011
..:Press and hold the RESTART switch.
Are both the PROCESS CHECK lind 11\1
PROCESS lights on?
V N
012"
Defectiv~ PROCESS CHECK light.
Defective IN PROCESS light.
Defective RI:START switch.
Check/replace display and control panel cable
(refer to 210,241).
013
-Release the RESTART switch. Wait
10
second$.
Is the PROCESS CHECK light on?
V N
014
-Press each key (except the HOLD, CMD,
ATTN, EXECUTE keys and the space bar. Do
not try the repeat function).
-Observe the display for proper characters or
functions (refer to 250 and keyboard theory
section 4).
Do the keys function correctly?
V N
8 3
F G
015
Is the PROCESS CHECK light on?
V N
016
Go to MAP 0800, Entry Point A.
017
Go to MAP 0420, Entry Point A.
28SEP76
PN 1608396
EC 829670 PEC 829523
MAP 0900-2
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