IBM 5110 Series Maintenance Analysis Procedures page 161

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DISPLAY MAP
PAGE 13 OF 19
113
Is there a card in A2 or 82 or 02 or K21
Y N
1
4
114
(Entry Point
I)
Is there a card in M4 or N2 or N41
Y N
115
Bad G2 (display) card (see MAP 050 for
jumpering).
Bad J2 (processor) card (see MAP 050 for
jumpering).
Bad H2 (base I/O) card.
Bad L2 (exec ROS) card (see MAP 050 for
jumpering).
Bad M2 (read/write storage) card.
116
- Power down.
-Remove M4,N2, and N4 if installed.
- Power up. Wait 25 seconds.
No more than 25 seconds after power up, the
following events should occur:
1. ABCDEFGH appears on the top line of the
5110 display.
2. ABCDEFGHJl(LMNP appears on the top
line.
3. The top line is cleared and either LOADO
or CLEAR WS appears once on one and
only one line of the display.
-Power up.
Do all three events shown above occur in
sequence after Power Up 1
Y N
A A A
W X
y
A A
X y
MAP 0500-13
117
-Power down.
-Swap M2 with M4.
-Power up. Wait 25 seconds.
No more than 25 seconds after power up, 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 line of the display.
-Power up.
Do all three events shown above occur in
sequence after Power Up 1
V N
118
Bad G2 (display) card (see MAP 050 for
jumpering).
Bad J2 (processor) card (see MAP 050 for
jumpering).
Bad H2 (base I/O) card.
Bad L2 (exec ROS) card (see MAP 050 for
jumpering).
119
The read/write storage card that was in M2 is
bad.
120
One of the read write storage cards removed is
bad. Power down. Install the cards one at a
time, (M4 first, then N2, N4), to find the bad
card. Power up after each card is installed. Use
the preceeding step to determine which card is
bad.
01JAN79
EC 836600 PEC 835541
MAP 0500-13
I