IBM 5100 - Page 33

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190
TAPE READ MAP
PAGE 21 OF 45
Service check/adjust the cartridge stop blocks
(refer
to 224).
Service
check/adjust the locking wheels (refer
to 225).
Defective spindle-select arm assembly (refer
to 202).
Defective diagnostic tape cartridge.
191
-If you do not remember the answer to the next
question, press R and then C
to try the test
again.
Did the tape motion last about 2 seconds?
Y N
192
Defective brake arm or brake arm spring (refer
to
202).
Defective F2 (base I/O) card.
193
-If you do not remember the answer to the next
question, press R and then C
to try the test
again.
Did the tape reels move clockwise (reverse)
rather than counterclockwise (forward).
Y N
194
-If you do not remember the answer to the
next question, press R and then C to try the
test again.
Did the tape reels move very slowly or
slow down after starting?
Y N
222
111
DOD
L M N
DOD
L M N
222
111
MAP 0300-21
195
You have indicated by your answers that
the tape reels moved counterclockwise
for
about 2 seconds. That is what should
happen
for this test. You might not have an
error.
-Retry the test (press R on the keyboard).
Go
to Page 1. Step 001. Entry Point A.
196
Service check/adjust the motor pulley (refer
to 226).
Inspect the jackshaft and spindle for binds
(refer
to 202).
There might be foreign material in the select
magnet gaps (refer
to 202).
Defective tape motor assembly (refer
to 202),
Defective spindle-select
I;Irm assembly (refer
to 202).
Defective jackshaft housing assembly (refer
to
202).
Defective diagnostic tape cartridge.
197
(refer to the appendix. the general logic probe).
-Probe tape control card pin U04 (-forward)
Is the UP light on?
Y N
198
Defective tape control card (refer to 202).
199
-Probe F2-J04 (-forward).
Is the UP light on?
YN
2
2
o
P
200
Check/replace the tape drive cable (refer
to
202).
28SEP76 PN 1608386
EC829670 PEe 828851
MAP i0300-21