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Tuning lnstructions for
CC 5850
Signal source
Equipmenl
setting
Signal source setting
Connection of
measuring instrument
Item
to be tuned
Tuning, Remarks
Azimuth
(lift off cover over cassette slot)
Testcassette
I
DolbY:OFF
10
kHz
AF voltmeter to
OUTPUT
Azimuth
screw I
Use lacquer to fix
to left
of
the
head I
at maximum
Tape
speed
Test
cassette
I
Dolby:
oFF
31
50
Hz
Frequency counter to
OUTPUT
Capstan motor
rear
I
31
50
Hz
Playback level
Test
cassette
I
Dolby:
oFF
Dolby level
400
Hz
AF voltmeter to
OUTPUT
VR3L
I
71OMV
VR4R
I
Recording level
AF generator
to
I
Dolby: OFF
INPUT
I
Record: ON
LEFTi
RIGHT
I
Cr rape
4OO
Hz
approx. 60 mV
AF voltmeter to
OUTPUT
Record level
control
I
maximum
710 mV
VRTL
VRSR
710 mV
(during play)
RF
premagnetization
AF
generator
to
I
Dolby: OFF
lNPtlT
I
Record:ON
LEFT/RIGHT
I
M"tat
t"p"
I
CrO2
tape
I
Fe
tape
12k\z
approx. 60 mV
-20 dB
AF voltmeter to
OUTPUT
Record level
control
L
71 mV
maximum
I
Metal
VR13LVR14R
CrOz
VR11
LVR12R
Fe
VRgL
VR10R
71 mV
(during play)
Check the recording level again after setting the premagnetization.
lf
it
deviates
(by moie
than
i
dB;,
repeat tuning, recording level and RF premagnetization.
RF
oscillatol
Metal
Cassette
I
Record:ON
AF
voltmeter
J
001
L5
|
109 kHz
RF
trap
Cassette
I
Record: ON
Metal
AF
voltmeter
tOTPTR/TP8L
L
6
L
Minimum
L7R
I
1
9-kHz
pilot-signal
lilter
AF generator
to
I
DolbY:
OFF
INPUT
I
Record: ON
LEFT/RIGHT
I
I'IPX:
OT'i
Fe
tape
19 kHz
approx.60
mV
AF voltmeter to
OUTPUT
Record level control
maximum
Minimum
L1
a
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