IBM 5100 Maintenance Analysis Procedures page 73

(
(
(
(
c:"
B B
L M
1 1
4 4
187
BRING UP MAP
PAGE 15 OF 15
(Entry Point G)
-Remove the B2 (expansion feature) card.
Within 10 seconds after RESTART is pressed,
the following events should occur:
1. ABCDEFGH Appears on the top line of the
5
inch display.
2. ABCDEFGHI Appears on the top line.
3.
The top line is blanked and either LOAD 0
or CLEAR WS appears on the display.
Do all three events listed above occur in
sequence after RESTART is pressed?
A B B
1 N P
1 1
5 5
191
MAP 0400-15
-Reinstall the A2 (I/O cable driver) card.
Is there
a
card in 82?
V N
192
Defective E2 (ROS adapter) card.
193
Go to Page
15,
Step
187,
Entry Point G.
V N 194
188
-Reinstall the B2 (expansion feature) card.
Defective E2 (ROS adapter) card.
Defective F2 (base I/O) card.
189
Defective B2 (expansion feature) card.
190
-Remove the A2 (I/O cable driver) card.
Within 10 seconds after RESTART is pressed,
the following events should occur:
1. ABCDEFGH Appears on the top line of the 5
inch display.
2. ABCDEFGHI Appears on the top line.
3. The top line is blanked and either LOAD 0 or
CLEAR WS appears on the display.
Do all three events listed above occur in
sequence after RESTART is pressed?
V N
1 1
5 5
B B
N P
Defective A2 (I/O cable driver) card and cable
assembly.
195
Dl;Jfective H2 (I/O and diag) card.
09DEC75 PN 1608387
EC 829523 PEC 828851
MAP 0400-15