IBM 5100 Maintenance Analysis Procedures

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222
021
POWER MAP
PAGE 3 OF 5
Check/ replace the cables in the ac power
box.
(refer
to 273).
022
Are the voltages present now?
Y N
023
Defective powei' supply.
***********
* CAUTION *
***********
Refer to 271, power supply removal and
replacement.
024
A cable was unseated or had an open
connection. Inspect
for loose connections.
025
Defective power supply.
***********
* CAUTION *
***********
Refer to 271, power supply removal and
replacement.
G
2
MAP 0700-3
026
(Entry Point B)
-Power down.
-Connect the
dc cable back into socket Y1 .
-Disconnect
a" the cables to the A 1 board except
the
dc power cable.
-Power up.
-Measure one
of the out of tolerance voltages
recorded above
for the next several steps.
Does fuse F1 blow or does power drop?
Y N
027
Is the measured voltage out of tolerance
now?
Y N
028
-Connect the Z4 (keyboard) cable.
Is the measured voltage out of tolerance
now?
Y N
029
-Connect the Z2 (tape) cable.
Is the measured voltage out of
tolerance now?
Y N
030
-Connect the Z3 (display and control
panel) cable.
Is the measured voltage out of
tolerance now?
Y N
12DEC75 PN 1608392
EC 829523 PEC 828851
5 5 5 444
L M N P Q R MAP 0700-3

IBM 5100 Specifications

General

Release Year	1975
RAM	16 KB - 64 KB
Storage	204 KB tape drive
Display	5-inch CRT
Operating System	APL/BASIC
Processor	IBM PALM (1.9 MHz)