(/
(
(
B
H
7
TAPE READ
MAP
PAGE
17
OF
45
151
ERROR
952--COMMAND
ERROR.
Loss
of
clockwise (reverse) tape direction
control.
-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
at
all
after
you
pressed C ?
Y N
152
-If
there is a cartridge
in
the tape drive,
remove it.
-While looking into the front
of
the tape drive
push the spindle (refer
to
202)
to
the right. Do
not push on the rubber part
of
the spindle.
While the spindle is pushed
to
the right. the
tape
motor
should rotate the spindle.
Does
the
spindle
rotate?
Y N
1 1
8 7
C C
W X
153
There might be foreign material
in
the
select magnet gaps (refer
to
202).
Service
check/adjust
the jackshaft housing
(refer
to
223).
Service
check/adjust
the magnet gaps
(refer
to
222).
Defective spindle-select arm assembly
(refer
to
202).
c
X
1
7
MAP 0300-17
154
-Insert the diagnostic cartridge into the
tape
drive.
***********
* CAUTION *
***********
TAPE
MAY
RUN
OFF
THE
REEL
IF
THE
JUMPeR
IS
LEFT
ON
TOO LONG.
-Momentarily attach a jumper between tape
control card pin
012
(-reverse magnet drive) and
tape control card pin U08 (gnd) (refer
to
227).
Did
the
tape
move
clockwise
(reversel?
Y N
155
-Calibrate the
CE
meter (refer to 270).
-Measure
...
12 vdc between tape control card
pin
013
(+12
vdc) and tape control card
uoa
(gnd).
Is
the
voltage
in
tolerance
(+11.0
vdc
to
+13.2 vdc)?
Y N
156
Go
to
Page 37,
Step
409,
Entry
Point
C.
157
-If
there is a cartridge
in
the tape drive,
remove it.
-Remove tape control card (refer
to
202).
-Measure the resistance between tape control
card pin
012
and
013
.
Is
the
resistance 25
to
40
ohms?
Y N
1 1
8 8
C C
y Z
158
Defective select magnet (reverse) (refer to
202).
Check/replace the tape internal cable (refer
to
202).
28SEP76
PN
1608386
EC
829670 PEe 828851
MAP
0300-17
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