Technics SA-T70-KFP Service Manual
185.040233
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---'-"F?
Manual
FM/AM STEREO RECEIVER
5A.T6TOKFP
Specilications
(DlN
45
500)
1
continuous
kHz
both channels driven
-
20Hz
Power banciwidth
Total
I ntermodulation
Damping
20 kYz continuous
-
both channels
channels
both
power
power
power
power
power
power
power
dislortion
at
at
at
distortion
harmonic
rated
rated
fated
half
hall
rated
rated
factor 25
AMPLIFIER SECTION
power
driven
driven
1
kHz
at 20
a1 20 Hz*2C
Hz-20 kHz
20
1
kHz
at 250
at 60 Hz: 7 k1z
oower
ohms
at B
Hz-20 kHz
kHz
Hz: B kHz
4.1, 4 ohms
=
4:
=
(4
x
2
75W
(B
x
2
65W
(4
x
2
65W
14,8
0.05%
0.03 %
%
50
(B
(4
{B
(B
(B
(B
2 x 60W
7 Hz-35 kHz,
4.040/a
0.025 %
0.007
1
SMPTE, B 0.03 %
,
(4
ohms),
ohms)
ohms)
ohms)
ohms)
-3
ohms)
oht;ts)
ohms)
ohms)
ohms)
0.04%
ohms)
dB
lnput
sensitivity
PHONO
AUX.1.
AUX.2
TAPE.1.
MIC
PHONO maximum
S/N
rated
26
50 mW
Frequency
PHONO
AUX
Tone Controls
BASS
TREBLE
Acoustjc Controls
filter
Lour
High filter
Loudness
power
dB
control
TAPE.2
power
power (4
response
and impedance
input voltage
(4
ohms) PHONO
(4
ohms) PHONO
(1
kHz, HMS)
TAPE
72
85
AUX
ohms) PHONO 60
AUX
RIAA
30 Hz*
2O Hz-20 kHz,
{Tone
(volume
10 Hz-40 kHz,
50 Hz,
2OkHz,
Conlrols
at
30
-
"0"
dB)
+ 0.5 cB,
+
+
positibn)
1
mV/47k
2.5
I50
mV/33k
150
mvi
33k ohms
mV/10k
3
(lHF,
dB
dB
1
+ 0.5 dB,
A:80
(lHF,
A:92 dB)
standard curve
kHz,
5
t 0.2 dB
*
12
dB-
12 d8-
Hz.
00
7kHz,
6 d8/oct
-
*6dB/oct
50H2. +9dB
ohms
ohms
ohms
170 mV
dB)
65
75 dB
62 dB
1
-
2.5
12
-
12
-
dB
dB
dB
dB
dB
dB
Marketed
Fisher
by
and
Serviced
and Paykel
throughout
Limited
New
Zealand
Htp
bg&Technics
SPECI FICATIO N S SA.T6TOKFP
voitage
Output
1
TAPE
TAPE 2 REC
TAPE
3
Channel batance,
Channei separation,
Headphones level and
impedance
Load
MAIN or REMOTE
MAIN
+ REMOTE
FIli TUNER
SECTICIN
Frequency
Antenna
Sensitivity
Total haimonic
MONO,
STEREO
+
46
SIN
{
MONO
STEBEO
Frequency
Selectivrty
Capture
lmage rejection al
re1ection
lF
Spurious
AM
suppressron
Stereo
separation
1 bl-lz
10 kHz
Leak carrier
19
kHz
kHz
38
Channel balance
Limiiing
Bandwidth
lF
amplifier
FM
demodulator
AM
TUNER
GENERAL
SECTION
Frequency
Sensitivity
Selectivity
lmage rejectjon
rejection
lF
Power
Consumption . .
Power
and
REC
OUT
OUT
RECIPLAY
range
Iermrnals
40
{+
dislortion
.
kHz deviation)
Fesponse
(400 kHz)
ratio
at
98
response
,
point
Range
(S/N
20
1000
at
Supply
DimensronsiWxHxD)
Weight
ACCESSORTES
Speaker-circuilprotectionfuse$
impedance
(Din
Socket)
AUX
250
AUX
Hz
1
kHz
outpul impedance
kHz deviation)
(al
MHz
98
MHz
rejection
dB)
Hz
"
*
(250
.
at 1000 kHz .
kHz .
6300
1 kHz)
at
98
6300
. . .
. .
Hz .
MHz
Hz) .
.
150 mV
150
mV
mV/80
30
*
55
500
4
-
*
B
88
'300
75 ohms
10.3
22
1.8
1.6
1.4
1.3
1.2
0.9
1.0
d8
dB
mV/330
16
ohrns
16
ohms
108
-
ohms
dBt, 1.8
(lHF,
vV
(S/N
uV
(S/N
!V
(S/N
l,lv
(S/N
trV
pV (S/N
(S/N
uV
k ohms
ohms
MHz
{balansed)
(unbalanced)
UV {lHF,
S/N 46
d8,
30 dB,
300
26 dB,
300
20
dB, 300 ohms)
75
30 dB,
26 dB, 75 ohms)
20 d8, 75 ohms)
usablo)
75
ohms, STEREO)
ohms)
ohms)
ohms)
0.1%
O.2a/o
(rHF,
(rHF,
-
dB
dB, tHF
dB, IHF
250
230
15
75
70
kHz,
kHz
uV/m
V
dB)
dB)
*
0.8 dB
60 dB
56 dB
0.2 dB
+
20
Hz
80 dB
1.0
dB
dB
85
100
100 dB
60
dB
45
dB
35 dB
-65
70
-
-F
1.5 dB
1.2
1tY
180 kHz
1000 kHz
525 - 1605
30
UV,
dB
35
50
dB
45
dB
550W
Hz,
50
450x157x411mm
(ltry"x63,{."x16{r"i
(27.s
12.5 kg
.
.
2
lb)
sA.T670
2
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3
DISASSEMBLY
1. Remove
Remove
3. Remove
washers
Cabinet
under
Front
Panel
heads
Screws
2.
Remove
4. Remove
Knobs
Front Panel
Remove
5.
sA.T670
4
Bottom
Board
qN.-
\q) \
Cc;rn
-
sS>,) 1
\
DIAL CORD STRINGING GUIDE
Tuning
Dial Cord Length 200
Capacitor
-
Closed
Position
cm
BLOCK DIAGRAM
Ql 02
35K.r0 2SC1047
Mixer
03
04
2SK49
2SC1675
Bufler
OSC
3
OF SIGNAL PATHS
rct02
4N377
IF AMP
&
DET
o109r05
Turns Clockwise
Power Supply
O701,702. Regul.
752 Reoulalor
O751.
jack
Mic
SW
0451,
Bul16r
452
\,lix AmpQ153
Mic AmP
454
o455
to
{AM
SEL SW
TERM}
fteAmp
0riv6
0601,602,607
608,60S,610,
611,612, €13.
614.619.620
&
Swilch
Proleclion
o811,812,
813,814
sA,T670
5
ABOUT THE
CIRCUITRY
PROTECTION
FUSES
Replace
from right speaKer
if no sound
heard
system
Soeaker
Protection
R
Circuitry
volume
the
plus (+
)
accidentally
correct. These
damage.
no
lf
sound
the
connections or operating
may have failed.
Note concerning
1.
is illuminated
dial
When two
'REMOTE')
impedance
Circuit
Fuses
5.OA
damage
control 7 set
and
'shorted'
is heard f rom one or both speakers
L
may result
(-
minus
pairs
are used, use speaker
o{ B ohms
fuses
speaker
of
)
or
prevent
and
speaker
Circuitry-Protection
Normal
m
$
il
to any
speaker
if
speaker
such
there are
mode, one
impedance:
systems
or more each.
the
with
-
position
terminals are
impedance
circuitry
no mistakes
tuse
systems
power
except
or both
('[,4AlN'
ailed
ffi
s
on and
"0"
is
nol
although
wilh
Juses
ano
wtth
Fuse
-
an
the
2. When
separately,
4
ohms or
FUSE
REPLACEMENT
'1
.
Loosen
After
2.
Replacement
Note:
instructions.
use
more.
screw
'REMOTE'
or
speaker
and
fuses
'MAIN'
the
fuse replacement,
Replace
from left speaker system.
speaker systems
systems
remove the cover.
close the cover.
included
are
if no sound
with
an
with
rmpedance of
the operation
heard
are used
CHASSIS VIEW
Fuse Primary
Power Transformer
Switch Power
Relay
amplifier
Equaliser AMP
Tuning
capacitor
PX IC
sA.T670
6
Power
SuPPly
AMP &
FM IF
Detecto?
FM
lC
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