IBM 5110 Series Maintenance Analysis Procedures page 94

c c c c
C C
DISKETTE READ MAP
U V W X
y
Z
22222 2
333 3 3 3
PAGE 24 OF 27
273
The trouble is fixed.
274
Check/replace the B4 cable in 5114
(see MAP 0210).
Bad drive control card.
Bad stepper motor.
Bad head load solinoid, capacitor or
resistor (see LOGIC 440).
275
Check/replace the 04 cable in 5114
(see MAP 0210).
Bad drive control card.
Bad stepper motor.
Bad head load solinoid, capacitor or
resistor (see LOGIC 440).
276
Bad A 1 A4 cable.
Bad 5114 A1 board.
277
Bad AC/OC power supply.
Bad cable A1A4 (See LOGIC 440).
278
-Check fuse 4.
Is fuse 4 OK?
Y N
279
Go to Page 23, Step 267, Entry Point L.
280
Bad AC/OC power supply.
Bad cable A1A4 (See MAP 0210 and LOGIC
440).
C C C C C
L M 0 R S
2 2 222
2 2 333
MAP 0310-24
281
Bad cable A1A4 (See MAP 0210 and
LOGIC 440).
Bad AC/DC power supply.
Bad A 1 board.
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).
282
-Disconnect the 5103 from the I/O
channel.
- Measure +5 Vdc at A 1 A4- B02 on the
5114.
Is the voltage OK?
Y N
283
Go to Page 23, Step 259,
Entry Point H.
284
Look for a short or an open in the DC
voltage distribution in the 5103 using
LOGIC 430. Check the cables from the
I/O port to the 5103.
285
Check/replace the 04 cable in 5114 (see
MAP 0210).
Bad 5114 A1 board.
286
Bad LED assembly.
Bad drive control card.
287
Is the PTX service check OK?
Y N
II
2 2
5 5
D D
A B
01JAN79
EC 836600 PEC 835541
MAP 0310-24
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