Technics SA-T670KFP Service Manual
I
rce
Manual
5A.T6TOKFP
2
x
75W
(4
ohms)
2
x
65W
(B
ohms)
2
x
65W
(4
ohms)
2 x 60W
(B
ohms)
7 Hz-35 kHz,
-3
dB
4.040/a
14,8
ohms)
0.05%
(4
oht;ts)
0.03 %
{B
ohms)
0.025 %
(B
ohms)
0.007
%
(B
ohms)
Frequency
response
PHONO
AUX
Tone Controls
BASS
TREBLE
185.040233
FM/AM STEREO RECEIVER
2.5
mV/47k
ohms
I50
mV/33k
ohms
150
mvi
33k ohms
3
mV/10k
ohms
170 mV
RIAA
standard curve
30 Hz*
1
5
kHz,
t 0.2 dB
2O Hz-20 kHz,
+ 0.5 dB,
-
1
dB
10 Hz-40 kHz,
+ 0.5 cB,
*
2.5
dB
50 Hz,
+
12
dB-
-
12
dB
2OkHz,
+
12 d8-
-
12
dB
1
00
Hz.
-
6 d8/oct
7kHz,
*6dB/oct
50H2. +9dB
---'-"F?
Specilications
(DlN
45
500)
AMPLIFIER SECTION
1
kHz
continuous
power
-
both channels driven
20Hz
-
20 kYz continuous
oower
both channels
driven
Power banciwidth
both
channels
driven
at B
ohms
Total
harmonic
dislortion
rated
power
at
1
kHz
rated
power
at 20
Hz-20 kHz
fated
power
a1 20 Hz*2C
kHz
half
power
at
20
Hz-20 kHz
hall
power
at
1
kHz
I ntermodulation
distortion
rated
power
at 250
Hz: B kHz
=
4.1, 4 ohms
0.04%
rated
power
at 60 Hz: 7 k1z
=
4:
1
,
SMPTE, B 0.03 %
Damping
factor 25
(4
ohms),
50
(B
ohms)
lnput
sensitivity
and impedance
PHONO
AUX.1.
AUX.2
TAPE.1.
TAPE.2
MIC
PHONO maximum
input voltage
(1
kHz, HMS)
S/N
rated
power
(4
ohms) PHONO
72
dB
(lHF,
A:80
dB)
TAPE
85
dB
(lHF,
A:92 dB)
26
dB
power
(4
ohms) PHONO
65
dB
AUX
75 dB
50 mW
power (4
ohms) PHONO 60
dB
AUX
62 dB
Acoustjc Controls
{Tone
Conlrols
"0"
positibn)
Lour
filter
High filter
Loudness
control
(volume
at
-
30
dB)
Marketed
and
Serviced
throughout
New
Zealand
by
Fisher
and Paykel
Limited
Htp
bg&Technics
SPECI FICATIO N S SA.T6TOKFP
Output
voitage
and
impedance
TAPE
1
REC
OUT
TAPE 2 REC
OUT
TAPE
3
RECIPLAY
(Din
Socket)
. . .
Channel batance,
AUX
250
Hz
6300
Hz .
Channei separation,
AUX
1
kHz
Headphones level and
outpul impedance
Load
impedance
MAIN or REMOTE
MAIN
+ REMOTE
FIli TUNER
SECTICIN
Frequency
range
Antenna
Iermrnals
Sensitivity
{+
40
kHz deviation)
Total haimonic
dislortion
(al
1 kHz)
MONO,
.
STEREO
SIN
{
+
46
kHz deviation)
MONO
STEBEO
Frequency
Fesponse
Selectivrty
(400 kHz)
Capture
ratio
lmage rejection al
98
MHz
lF
re1ection
at
98
MHz
Spurious
response
rejection
at
98
MHz
AM
suppressron
Stereo
separation
1 bl-lz
10 kHz
Leak carrier
19
kHz
38
kHz
,
Channel balance
(250
Hz
*
6300
Hz) .
Limiiing
point
.
Bandwidth
lF
amplifier
FM
demodulator
AM
TUNER
SECTION
Frequency
Range
Sensitivity
(S/N
20
dB)
"
Selectivity
lmage rejectjon
at 1000 kHz .
lF
rejection
at
1000
kHz .
GENERAL
Power
Consumption . .
Power
Supply
DimensronsiWxHxD)
Weight
ACCESSORTES
Speaker-circuilprotectionfuse$
. .
.
.
.
sA.T670
2
150 mV
150
mV
30
mV/80
k ohms
*
1.0
d8
55
dB
500
mV/330
ohms
4
-
16
ohrns
B
*
16
ohms
88
-
108
MHz
'300
ohms
{balansed)
75 ohms
(unbalanced)
10.3
dBt, 1.8
UV {lHF,
usablo)
22
vV
(lHF,
S/N 46
d8,
75
ohms, STEREO)
1.8
uV
(S/N
30 dB,
300
ohms)
1.6
!V
(S/N
26 dB,
300
ohms)
1.4
l,lv
(S/N
20
dB, 300 ohms)
1.3
trV
(S/N
30 dB,
75
ohms)
1.2
pV (S/N
26 dB, 75 ohms)
0.9
uV
(S/N
20 d8, 75 ohms)
0.1%
O.2a/o
60 dB
(rHF,
75
dB)
56 dB
(rHF,
70
dB)
+
0.2 dB
20
Hz
-
15
kHz,
*
0.8 dB
80 dB
1.0
dB
85
dB
100
dB
100 dB
60
dB
45
dB
35 dB
-65
dB, tHF
-
70
dB, IHF
-F
1.5 dB
1.2
1tY
180 kHz
1000 kHz
525 - 1605
kHz
30
UV,
250
uV/m
35
dB
50
dB
45
dB
550W
50
Hz,
230
V
450x157x411mm
(ltry"x63,{."x16{r"i
12.5 kg
(27.s
lb)
2
AIJX 1
Fhona
CUT
f- XI S lerii()
i1-lC
lGaltr-
voiLrrTie
*0n1foi J-aDe-,'nonrior
$Feaker Circuil Frotec'ircn iuses
!1lC !1 i'<irclPubi ic
:liriress facilit';
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w
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He;lriniror:e
iac<
Pcwgt
Srlillii
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#ffiFg?ffi#ils
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Arlenrra Fi\,i
Ante
nn;l
I
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n"tiJii
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nglrnods
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t,lt{i ins
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.ll rT
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PLA.Y
AC otrtlel
s&.7&70
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oJ^t
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Lr
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+
R1$HT
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r*FFT
+
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Filiers
TAPS 1
9PEA.KFRS
DISASSEMBLY
1. Remove
Cabinet
5.
Remove
Bottom
Board
sA.T670
4
2.
Remove
Knobs
4. Remove
Front Panel
Remove
washers
under
heads
3. Remove
Front
Panel
Screws
qN.-
\q) \
Cc;rn
-
\
sS>,) 1
DIAL CORD STRINGING GUIDE
BLOCK DIAGRAM
OF SIGNAL PATHS
to
SEL SW
{AM
TERM}
Tuning
Capacitor
-
Closed
Position
Dial Cord Length 200
cm
3
Turns Clockwise
Ql 02
35K.r0 2SC1047
Mixer
03
04
2SC1675
2SK49
OSC
Bufler
rct02
4N377
IF AMP
&
DET
o109r05
Power Supply
O701,702. Regul.
O751.
752 Reoulalor
Mic
jack
SW
Bul16r
0451,
452
\,lix AmpQ153
454
Mic AmP
o455
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
Soeaker
Circuit
Protection
Fuses
R
5.OA
L
Circuitry-Protection
Fuse
Circuitry
damage
may result
il
-
with
the
power
on and
the
volume
control 7 set
to any
position
except
"0"
-
the
plus (+
)
and
minus
(-
)
speaker
terminals are
accidentally
'shorted'
or
if
speaker
impedance
is
nol
correct. These
fuses
prevent
such
circuitry
damage.
lf
no
sound
is heard f rom one or both speakers
although
the
dial
is illuminated
and
there are
no mistakes
wilh
connections or operating
mode, one
tuse
or both
Juses
may have failed.
Note concerning
speaker
impedance:
1.
When two
pairs
of
speaker
systems
('[,4AlN'
ano
'REMOTE')
are used, use speaker
systems
wtth
an
impedance
o{ B ohms
or more each.
Normal
m
$
ailed
ffi
s
Replace
if no sound
heard
from right speaKer
system
Replace
if no sound
heard
from left speaker system.
2. When
'MAIN'
or
'REMOTE'
speaker systems
are used
separately,
use
speaker
systems
with
an
rmpedance of
4
ohms or
more.
FUSE
REPLACEMENT
'1
.
Loosen
the
screw
and
remove the cover.
2.
After
fuse replacement,
close the cover.
Note:
Replacement
fuses
are
included
with
the operation
instructions.
CHASSIS VIEW
Fuse Primary
Power Transformer
sA.T670
6
Relay
Switch Power
amplifier
Equaliser AMP
FM IF
AMP &
FM
Detecto?
lC
Tuning
capacitor
PX IC
Power
SuPPly
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