IBM 5100 Maintenance Analysis Procedures page 26

B B
P R
8 8
125
TAPE READ MAP
PAGE 14 OF 45
ERROR 963--STAnJS ERROR.
Load point hole (BOT status) can not be
found (status bit 7 was 1, should have been
0).
Service check/ adjust the cartridge stop blocks
(refer to 224).
Defective tape LED-PTX assembly (refer to
202).
Defective tape control card (refer to 202).
Defective diagnostic tape cartridge.
126
ERROR 960--STATUS ERROR.
BOT Status is not active (status bit 7 was 1,
should have been 0).
-Jumper tape control card pin B08 (gnd) to tape
control card pin 010
(+
BOT PTX collector) (refer
to 227).
-Retry the test (press R on the keyboard).
This section of the tape read diagnostic program
just ran again.
Is ERROR 960 still displayed?
Y N
127
NOTE: REMOVE JUMPER.
Defective tape LED-PTX assembly (refer to
202).
Check/ replace the tape internal cable (refer to
202).
128
(refer to the appendix, the general logic probe).
-Probe tape control card pin S04 (-BOT) .
Is the DOWN light on?
Y N
1 1
4 4
C C
Q R
Bee
NOR
8 T 1
4 4
129
NOTE: REMOVE JUMPER.
MAP 0300;.14
Defective tape control card (refer to 202).
130
-Probe F2-U10 (-BOT) .
IS the DOWN light on?
Y N
131
NOTE: REMOVE JUMPER.
Check/replace the tape drive cable (refer to
202).
132
NOTE: REMOVE JUMPER.
Defective F2 (base I/O) card.
133
ERROR 958--STATUS ERROR.
EOT Status cannot be cleared (status bit 0 was
1, should have been 0).
-If you are not sure of the answer to the next
question, answer it N.
Is the tape moving too slow?
Y N
134
-Run the tape speed test by pressing
EXECUTE on the keyboard.
Is ERROR 973 now displayed?
Y N
135
Defective F2 (base I/O) card.
28SEP76 PN 1608386
1 1
5 5
C
c
EC 829670
PEC 828851
S T
MAP 0300-14
c
c
('
. /