E
A
2
7
TAPE READ
MAP
PAGE
28
OF
45
276
~Calibrate
the
CE
meter (refer
to
270).
-Measure -12 vdc between tape control card pin
U08 (gnd) and tape control card pin S 13 (-12
vdc) (refer
to
227).
Is
the
voltage
in
tolerance
(-11.0
vdc
to
-13.2
vdc)7
Y N
277
-If
there
is
a cartridge
in
the tape drive,
remove it.
-Remove tape control card (refer
to
202).
-Measure -12 vdc between tape control card
pin U08 (gnd) and tape control card pin S 13
(-12 vdc).
Is
the
voltage
in
tolerance
(-11.0
vdc
to
. -13.2 vdc)7
Y N
278
-Install the tape control card (refer
to
202).
-Measure -12 vdc between N2-P08 (gnd)
and
G6-A02 (-12 vdc).
Is
the
voltage
in
tolerance
(-11.0
vdc
to
-13.2 vdc)7
Y N
279
-Measure -12 vdc between N2-P08
(gnd) and C1-E13 (-12 vdc).
Is
the
voltage
in
tolerance
(-11.0
vdc
to
-13.2 vdc)7
Y N
2
222
8 8 8 8
E E E E
C 0 E F
280
The -12 vdc from the power supply is
not
in
tolerence.
Go
to
MAP
0700.
Entry
Point
A.
E E E E
C D E F
2 2 2 2
8 8 8 8
281
MAP 0300-28
Repair open connection from C 1-E 13
to
G6-A02.
282
Check/replace the tape drive cable (refer to
202).
283
Defective tape control card (refer
to
202).
284
-If
there
is
a cartridge
in
the tape drive, remove it.
-Remove tape control card (refer
to
202).
Test the continunity
of
a wire
in
the tape internal
cable (probe on the cable not on the· card) by
testing
for
continuity from tape control card pin
B09 (raw data)
to
tape control card pin
009
(raw
data) (refer
to
227).
Is
there
continuity
between
the
pins?
Y N
285
Defective tape control card (refer
to
202).
Check/
replace the tape internal cable (refer
to
202).
286
Defective tape control card (refer
to
202).
Defective
F2
(base
I/O)
card.
Check/replace the tape drive cable (refer
to
202).
Defective
read/write
head (refer
to
202).
Check/ replace the tape internal cable (refer
to
202).
28SEP76
PN
1608386
EC
829670
PEC
828851
MAP 0300-28
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