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Hitachi FT-4000 User Manual

Hitachi FT-4000
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HITACHI
SERVICE
MANUAL
FT-4000
SPECIFICATIONS
Circuitry
FT-4000
AM/FM
2-band
stereo
tuner
FT-4000L
MW/LW/FM
3-band
stereo
tuner
2
ICs,
8
transistors
(1
FET},
19
diodes
(1
LED)
(FT-4000)
21
diodes
(1
LED)
(FT-4000L)
Semi-conductors
@
FM
SECTION
Frequency
range
88
108
MHz
Usable
sensitivity
Mono:
10.3
dBf
(1.8
uV)
(IHF),
1.2
uV
(DIN)
50
dB
Quieting
sensitivity
HE)
Mono:
17.2
dBf
(4
uV)
{FT-4000)
Stereo:
37.2
dBf
(39.8
nV)
Signal-to-noise
ratio
(FT-4000)
Mono:
75
dB,
Stereo:
68
d8
Signal-to-noise
ratio(DIN}(FT-4000L)Mono:
68
dB,
Stereo:
64
dB
Harmonic
distortion
(|HF}
100
Hz
Mono:
0.2".,,
Stereo:
0.3%
1
kHz
Mono:
0.1%,
Stereo:
0.25%
6
kHz
Mono:
0.3%,
Stereo:
0.45%
Frequency
response
Capture
ratio
Alternate
channel
selectivity
(JHF)
(+300
kHz)
1.2
dB
75
dB
(FT-4000)
:
60 dB
(FT-4000L)
Image
rejection
(98
MHz)
50
dB
IF
rejection
(98
MHz)
80
dB
Spurious
rejection
(98
MHz}
80
dB
e
AM
suppression
ratio
(65
dBf}
50
dB
Stereo
separation
(1
kHz)
46
dB
Sub-carrier
suppression
46
dB
Antenna
input
impedance
300
ohms
balanced
type,
75
ohms
unbalanced
type
60
dB
(FT-4000)
5
pV
SCA
rejection
Muting
threshold
30
Hz
12
kHz
(+0.5
dB,-1.5
dB)
@
FT
-
4000
FT-4000L
English
Deutsch
Frangais
No.
169
FT-4000L
@
AM
SECTION
Frequency
range
530
1,605
kHz
Usable
sensitivity
(S/N
20
dB)
12
nV
(IHF},
300
uV/m
(Ferrite
antenna)
Selectivity
35
dB
Signal-to-noise
ratio
53
dB
(input:
50
mV/m)
Image
rejection
50
dB
(at
1,000
kHz}
{F
rejection
38
dB
(at
1,000
kHz)
Spurious
rejection
50
dB
(at
1,000
kHz)
Harmonic
distortion(FT-4000)
0.8%
(input:
5
mV/m,
30%
mod.)
@
LW
SECTION
(FT-4000L)
Frequency
range
150
kHz
350
kHz
Usable
sensitivity
(S/N
20
dB)
800
pV/m
(Ferrite
antenna)
Image
rejection
35
dB
IF
rejection
38
dB
Selectivity
38
dB
Signal-to-noise
ratio
35
dB
(input
5
mV/m}
AUDIO
SECTION
.
Output
level/impedance
FM
(100%
dev.
fixed):
(550
mV/4.8
kohms)
FT¥-4000
am
(30%
mod.
fixed)
:
(135
mV/4.8
kohms)
MW
(30%
mod.
fixed}:
(135
mV/4.8
kohms)
FT-A000L
|
wy
(30%
mod.
fixed):
(130
mV/4.8
kohms}
GENERAL
Power
requiremenis
FT-4000
AC
120
V
60
Hz,
~220
V
50/60
Hz,
~240
V
50/60
Hz
~110—120
V/220—240
V
50/60
Hz
~
220
V
50/60
Hz,
~
240
V
50/69
Hz
10W
FT-4000
435
(W)
x
110
(H)
x
272
(D)
mm
FT-4000L
435
(W)
x
110
(H)
x
288
(D)
mm
3.5
kg
(7.7
Ibs.)
FT-4000L
Power
consumption
Dimensions
Weight
Specifications
and
designs
may
be
changed
without
notice
for
improvement
FEATURES
1.
Dual
Gate
Mos
FET
for
High
Quality
FM
Tuner
2.
High
Selectivity
and
Low
Distortion
IF
Amplifier
Using
IC
and
3
Ceramic
Filters
3.
Quadrature
Detection
4.
Phase-Locked
Loop
for
FM/MPX
Circuit
.
FM
Mode/Muting
Circuit
MPX
Noise
Filter
Circuit
.
A
Ceramic
Filter,
IC
in
AM
(MW/LW)
Tuner
(FT-4000L)
.
A
Ceramic
Filter,
[C
in
AM
Tuner
(FT-4000)
.
Two
Extra-Wide
Meters
and
a
Large-sized
Fly-wheel
Tuning
knob
Onna
AM/FM
STEREO
TUNER
May
1979

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Hitachi FT-4000 Specifications

General IconGeneral
BrandHitachi
ModelFT-4000
CategoryTuner
LanguageEnglish

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