IBM 5110 Series Maintenance Analysis Procedures page 96

D
F
2
5
303
DISKETTE READ MAP
PAGE 26 OF 27
Check the device address lines.
-Press L
On the 5114, probe:
A1C1-G03
A1C1-G04
A1C1-G05
A1C1-G06
A1C1-G07
A1C1-G08
A1C1-G09
A1C1-B10
Are BOTH lights on for each of the probed
lines?
V N
304
Bad 5114 C1 (adapter) card (see MAP 050
before replacing this card).
Check/replace the 5114 internal cables 01
and 03 (see 280 and MAP 0210).
Check/replace the 5114 I/O interface cable
(see 280 and MAP 0210).
Bad drive control card.
Bad Cable from the diskette drive to the
adapter board; A 104 (Drive 1) or A 1 B4 (Drive
2) (see MAP 0210)
Bad A2 (I/O cable driver) card and cable
assembly in 5110.
Bad H2 (base I/O) card in 5110.
Bad cable terminator.
305
-Probe on the 5114;
A1C1-013 +OP code E
A 1 C 1 - G 12 +control strobe
Are BOTH lights on for each of the probed
lines?
YN
D D
G H
J
D D
6 G H
. MAP 0310-26
306
Bad 5114 C 1 (adapter) card (see MAP 050
before replacing' this card).
Check/replace the 5114 internal cables 01
and 03 (see 280 and MAP 0210).
Check / replace the 5114 I/O interface
cable (see 280 and MAP 0210).
Bad A2 (I/O cable driver) card and cable
assembly in 5110.
Bad 5110 A 1 L2 (exec ROS) card (see MAP
050 for jumpering).
Bad 5110 A1 F2 (Ros control card.
Bad cable terminator.
307
Bad drive control card.
Bad 5114 C1 (adapter) card (see MAP 050
before replacing this card).
Check/replace the 04 cable in 5114 (see MAP
0210).
Bad head/carriage assembly.
Bad CE diagnostic diskette.
308
Have you been here before?
Y N
309
Swap A 1 04 and A 1 B4 cables (Drive 2 is now
drive 1 and drive 1 is drive 2).
Go to Page 2, Step 003, Entry Point B.
310
After the failing FRU has been isolated,
remember to swap the cables back to their
original locations (A 1 04 drive 1 and A 1 B4 drive
2).
Go to Page 6, Step 031, Entry Point E.
01JAN79
EC 836600 PEC 835541
MAP 0310-26
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