A F F
H U V
533
TAPE READ
MAP
9 9
PAGE
40
OF
45
445
-Disconnect the tape drive cable from the
board (refer
to
228).
Is
the
UP
light
on?
Y N
446
Defective
F2
(base
I/O)
card.
447
Check/ replace the tape drive cable (refer
to
202).
448
-Test
for
continuity from tape control card pin
D07 (
+ file protect)
to
pin B08 (gnd).
Is
there
continuity
between
the
pins?
Y N
449
Defective tape control card (refer
to
202).
450
Defective tape switch assembly (refer
to
202).
Check/replace the tape internal cable (refer
to
202).
451
ERROR
912--STATUS ERROR.
Cartridge in place status should not
be
found (bit
3 should
be
0).
(refer
to
the appendix. the general logic probe).
-Probe F2-M03 (-cartridge
in
place).
-leave
the probe on the pin.
Is
the
DOWN
light
on?
Y N
4 4
o 0
F F
W X
F F
W X
4 4
o 0
452
Defective
F2
(baSe
I/O)
card.
453
MAP 030Q-40
-If
there is a cartridge
in
t~e
tape drive, remove it.
-Remove tape control card (refer
to
202).
Is
the
UP
light
on?
Y N
454
-Disconnect the tape drive cable from the
board (refer
to
228).
Is
the
UP
light
on?
Y N
455
Defective
F2
(base
I/O)
card.
456
Check/replace the tape drive cable (refer
to
202).
457
-Test
for
continuity from tape control card pin
B07 (-
cartrid~e
in
place)
to
pinB08
(gnd).
Is
there
continuity
between
the
pins?
Y N
458
Defective tape control card (refer
to
202).
459
Defective tape switch assembly (refer
to
202).
Check/replace the tape internal cable
(r~fer
to
202).
28SEP76
PN
1608386
EC
829670
PE;C
828851
MAP 0300-40
o
o
o
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