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Technics SC-CH570 Service Manual

Technics SC-CH570
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RS-CH770
Playback
frequency
response
check
(DECK
1/2)
Playback
the
315
Hz/-20
dB
and
12.5
kHz
to
63
Hz/-20
dB
sections
of
the
test
tape
(QZZCFM)
and
then,
using
the
315
Hz/-20
dB
playback
output
as
a
reference
(0
dB),
confirm
that
the
playback
frequency
response
is
within
the
range
shown
in
Fig.
9.
(L-ch)
Miler
or
(R-ch)
Bien
A.GND
Fig.
8
Fig.
9
Recording/playback
frequency
response
and
gain
check
(DECK
2)
Normal
tape
check
1.
Insert
a
Normal-type
blank
tape
(QZZCRA)
into
Deck
2.
2.
Record
signals
at
50
Hz,
100
Hz,
200
Hz,
500
Hz,
1
kHz,
2
KHz,
10
kHz
and
12.5
kHz
(28
mV).
3.
Set
the
playback
frequency
of
the
recorded
signals
at
1
KHz
as
the
reference
response
(0
dB).
4.
Playback
the
recorded
signals
to
confirm
that
the
output
is
within
the
range
of
the
overall
frequency
response
shown
in
Fig.
11.
|
CrO2/Metal
tape
check
5.
Repeat
steps
2
to
4
for
each
tape
and
confirm
that
the
output
for
each
is
within
the
range
of
the
overall
frequency
response
shown
in
Fig.
12.
Main
P.C.B.
aul
Fig.
10
Normal
Overall
frequency
response
chart
(NR
OFF)
5OH2
100Hz
200Hz
500Hz
1kHz
2kHz
10kHz
Fig.
11
CrO2
Metal
Overall
frequency
response
chart
(NR
OFF)
SOHz
100Hz
200Hz
S500Hz
1kHz
2kHz
12.5kHz
Fig.
12
S47=
Ee
RIE
aS
a
ae

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Technics SC-CH570 Specifications

General IconGeneral
BrandTechnics
ModelSC-CH570
CategoryStereo System
LanguageEnglish

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