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6.5
.
10.1
Variable
Speed
Check Procedure
STEP 1
Turn the APR
-
5000
power
switch ON
.
O
STEP 2
Load the
MRL reference
tape
onto the machine
,
sure that all channels are in SAFE mode
,
the 1 kHz tone
,
selected on the
APR
-
5000
,
inconsequential
which
speed
is selected
,
a misadjustment
,
it will be evident in all
speeds
.
Make
Locate to
Make sure that the correct
speed
is
For this check it is
If there is
STEP 3
Connect the frequency counter to the
LINE
OUT of
either channel
one or
channel
two
.
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STEP 4
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gs
5
?
ne
the
s or
on the frequency counter
.
STEP 5
Press the VARI
key so
that the
key
flashes
.
Press 5
,
0
,
0
,
on the ten
-
key
pad
.
Press the
VARI
key
once
more so that the
VARI
key
is
constantly
illuminated
.
The machine is now in
VARI
-
SPEED PLAY mode
+
5095
of
standard
speed
.
STEP 6
Ensure that the
reading
on the frequency counter
is
1.5
kHz
.
other than 1.5
kHz
,
perform
the
adjustment procedure
in
section 6.5
.
10.2
.
If the
frequency
counter shows a
reading
STEP 7
Press the
VARI
key twice so
that it flashes
.
Press
the
+
/
-
key
(
on the ten
-
key pad
)
once
.
The
display
should read
"
-
50.0 "
.
Press the
VARI
key
once more so
that the
VARI
key
is
constantly
illuminated
.
The
machine is now in VARI
-
SPEED PLAY mode
-
5095 of
standard
speed
.
STEP 8
Ensure that the
reading
on the frequency counter is
500 Hz
.
other than 500 Hz
,
perform
the
adjustment procedure
in
section 6.5
.
10.2
.
If the
frequency
counter shows a
reading
6.5
.
10.2
Variable
Speed
Adjustment
Procedure
STEP
1
Remove the
top rear
( deck
plate
) cosmetic
cover
exposing
the TIB board
.
STEP 2
Load the work
tape
onto the machine
.
STEP 3
Connect the
negative probe
of the
DVM to TP
1 on the
TIB board
.
( Refer to
Figure 6
-
21 )
STEP 4
Connect the
positive probe
to
TP
3 on
the
TIB
board
.
( Refer
to
Figure 6
-
21 )
6
-
38
r
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