Dual CT 5750 User manual

Sservice-Anleitung
service
Manual
Instructions
de
Service
CT
57/50
AM/FM
STEREO
TUNER
CT
5750
FM
SCAN
STEREO
FM
MUTE
OFF
AM:’FM
FM
SCAN
WIDE
MONO)
os
By
,
ay
a
CE
Ghadlephile
vncopl
Dati
tecnici
(valori
tipici)
Technische
Daten
(typische
Werte)
Caractéristiques
techniques
(valeurs
types)
Specifications
(typical
values)
Dual
CT
5750
Empfangsbereiche
FM
(UKW)
AM
(MW)
AM
(USA/Canada)
Empfindlichkeit
(an
75
()
Reception
wavebands
FM
(VHF)
AM
(MW)
AM
(US/Canadian
model)
Sensitivity
(at
75
©)
Games
de
fréquences
FM
(OC)
AM
(OM)
AM
(Modele
USA/Canada)
Campi
di
ricezione
FM
(OQUC)
AM
(onde
medie)
AM
(Stati
Uniti/Canada)
Sensibilita
(su
75
ohm)
87—
108
MHz
522--
1611
kHz
520-1710
kHz
Sensibilité
(a
75
ohms)
FM
—
Mono
(26
dB)
FM
—
mono
(26
dB)
FM
—
Mono
(26
dB)
FM
—
mono
(26
dB)
0,8
pV
FM
—
Stereo
(46
dB)
FM
—
stereo
(46
dB)
FM
—
Stereo
(46
dB)
FM
—
stereo
(46
dB)
28
pV
Trennscharfe
FM
stat./dyn.
FM
selectivity
stat./dyn.
Sélectivité
FM
stat./dyn.
Selettivita
FM
stat./din
80/70
dB
Rapporto
segnale
disturbo
72
dB
Tensione
di
rete
Gerauschspannungsabstand
Signal/noise
ratio
Rapport
signal/bruit
Netzspannung
Mains
voltage
Voltage
secteur
Model
Europa
European
model
Modele
Europe
modello
Europa
220
V/50
Hz
Model
USA/Kanada
US/Canadian
model
Modele
USA/Canada
modello
Stati
Uniti/Canada
120
V/60
Hz
Model
UK
UK
model
Modele
Royaume-Uni
modello
GB
240
V/50
Hz
MaBe
(Breite
x
Hohe
x
Tiefe)
Dimensioni
(larghezza
x
altezza
=
profondita)
440
x
92
x
303
mm
Dimensions
(largeur
x
hauteur
x
profondeur)
Dimensions
(width
x
height
x
depth)
Dual
GmbH
-
Postfach
1144
-
7742
St.Georgen/Schwarzwald
921619
O49
Copyright
by
Dual

Abgleichanleitung
CT
5750
Signalquelle
Einstellung
Gerat
Einstellung
Signalquelle
Me8Bgerat
AnschluB
Abgleichposition
Abgleich,
Bemerkung
FM-Oszillator
87,5
MHz
DC
Voltmeter
L
107
1
VO
EO
A
an
E
und
TP
3
108
MHz
CT
104
90VDC+0,1V
FM-—ZF,
Vorkreis
KlirrfaktormeBbrucke
L106
Oszilloskop
an
NF-Ausgang
0-1
mV
Hub
+
40
kHz
Mod.
1
kHz
ca.
98
MHz
auf
Deckung
Mono-
Taste:
Ein
Sendertreie
Frequenz
FM-MeBsender
an
75
Ohm
Antenneneingang
NF-Maximum
L203
A
NF
und
Klirrfaktor
Minimum
ca.
98
MHz
90
MHz
ca.
90
MHz
auf
Deckung
CT
101,
CT
102,
105
MHz
ca.
105
MHz
auf
Deckung
CT
103
FM-—ZF
(Feinabgleich)
L203
B
L102,L
103,
L
104
NF-Maximum
L203
B
DC-Maximum
und
DC-Minimum
ermitteln
DC-Voltmeter
an:
TP
1-TP2
Antenne
an
Starken
75
Ohm
FM-Sender
Antenneneingang
auf
seiner
Sollfrequenz
L203
B
Spannungsmitte
einstellen
empfangen
L203
A
Mono-,
Stereo-
und
Muting-Ubergang,
Signalanzeige,
Kanaltrennung
OV+1mVDC
Mono-,
Stereo-
und
Mutinglubergang
einstellen
FM-MeBsender
an
Senderfreie
ca.
98
MHz
auf
Deckung
NF-Voltmeter,
75
Ohm
Frequenz
Hub
+
40
kHz,
Oszilloskop
an
Antenneneingang
ca.
98
MHz
Mod.
1
kHz
NF-Ausgang
Mono-Taste:
Aus
19
kHz
Pilot
ein
6
pV
VR
201
VR
202
Letzte
Signal
LED
mu
aufleuchten
VR
301
Maximale
Kanaltrennung
Unterdruckung
Pilottonreste
(19
kHz)
FM-MeBsender
an
Sendertfreie
ca.
98
MHz
auf
Deckung
NF-Voltmeter
75
Ohm
Frequenz
1-2
mV,
Oszilloskop
an
L
302
(|.K)
Antenneneingang
ca.
98
MHz
19
kHz
Pilot
ein
NF-Ausgang
Minimum
Mono-Taste:
Aus
L
308
(r.kK)
LPF
(114
kHz)
NF-Generator
Aus
114
kHz
Oszilloskop
L
301
Minimum
1
Vss
an
R
301
an
C
301
AM-Oszillator
E=Ir
3
1611
KHz
Cl-2G2
9
OV
DCE
ON.
10
uV—1
mV,
1
kHz,
Mod.
30
%
999
kHz
999
kHz
594
kHz
594
kHz
1404
kHz
1404
kHz
AM-—ZF,
Vorkreis
AM-MeBsender
an
AM-Antenneneingang
NF-Voltmeter
Oszilloskop
an
NF-Ausgang
L
204
Maximum
Le
|
CT
201

Tuning
Instructions
for
CT
5750
Signal
source
Equipment
Signal
source
setting
Connection
of
Item
to
be
tuned
Tuning,
Remarks
setting
measuring
instrument
FM
oscillator
L
107
1.5VDC+
0.1V
87.5
MHz
108
MHz
CT
104
90VDC+01V
eg
L
106
DC
voltmeter
to
EandTP3
FM
signal
generator
to
Mono
key:
ON
0-1
mV,
Harmonic
detector
75-ohm
Frequency
with-
Shift
+
40
kHz
oscilloscope
to
antenna
input
out
transmitters
Mod.
1
kHz
AF
output
Tune
to
approx.
98
MHz
AF
maximum
L203
A
AF
and
harmonic
distortion
minimum
approx.
98
MHz
90
MHz
Tune
to
approx.
90
MHz
CT
101,
CT
102,
105
MHz
Tune
to
approx.
105
MHz
CT
103
L203
B
L203
B
L102,
L103,
L
104
AF
maximum
TP3
0
M4
N
=
ro
‘va
ro)
>
oc
Determine
DC
maximum
and
DC
minimum
L
203
B
Adjust
power
mean
L203
A
0V+i1mVDC
Transition
between
monaural,
stereo
and
muting;
signal
indication,
channel
separation
DC
voltmeter
to:
TP
1-TP2
Antenna
to
Receive
strong
75-ohm
FM
transmitter
antenna
input
at
its
nominal
frequency
L
201
[
]
L204
VR
202
CT
201
L203
L202
CT
202
FM
signal
generator
to
Frequency
with-
Tune
to
approx.
98
MHz,
|
AF
voltmeter,
Set
monaural,
stereo
and
as
75-ohm
out
transmitters
Shift
+
40
kHz,
oscilloscope
to
VR
201
muting
transition
O
=
antenna
input
approx.
98
MHz
Mod.
1
kHz,
AF
output
nN
69
Oo
5S
Mono
key:
OFF
19-kHz
pilot
ON,
=
5)
o
al
6
uV
_
_
Last
signal
LED
must
light
up
Maximum
channel
separation
VR
202
VR
301
Suppression
of
residual
pilot
frequencies
(19
kHz)
FM
signal
generator
to
Frequency
with-
Tune
to
approx.
98
MHz
AF
voltmeter,
75-ohm
out
transmitters
1-2mV,
oscilloscope
to
L
302
(left
channel)
antennainput
approx.
98
MHz
19-kHz
pilot
ON
AF
output
Minimum
Mono
key:
OFF
L
303
(right
channel)
AF
generator
OFF
114
kHz
Oscilloscope
L
301
Minimum
1
Vpp
to
R
301
to
C
301
AM
oscillator
522
kHz
DC
voltmeter
to
L202
14VDC+01V
E-TP3
1611
kHz
CT
202
90VDC+0.1V
AM
signal
generator
to
999
kHz
10
pV
-
1
mV,
1
kHz,
AF
voltmeter,
AM
antenna
input
Mod.
30%
oscilloscope
to
999
kHz
AF
output
L
204
Maximum
594
kHz
594
kHz
1404
kHz
1404
kHz
L
201
CT
201

SCHEMATIC
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CT5750
1/2
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10
LED/Tastenplatte
LED
P.C.B.

Ersatzteile
-
Replacement
parts
-
Pieces
déetachées
-
CT
5750
21
[pee
[arene
[Benet
284 887
Frontblende
CT
5750
284
519
Fenster
284
481
Filter
Band
Pass
283 750
Dual-Zeichen
284 468
Spule
FM
ANT
284
488
Taste
284
467
Spule
FM
RF
284 604
Tastenhaiter
4-fach
284 465
Spule
FM
RF
284 487
Tastenfuhrung
284
475
Spule
284
880
Druckfeder
284
461
Spule
FM
IF
284515
Tastenverlangerung
284 464
Spule
FH
OSC
284
886
Displayblende
284514
Transistor
3
SK
107
F
284
490
Fenster
284514
Transistor
3
SK
107
F
284
489
Taste
4-fach
284513
Transistor
2
SK
544
284 606
Taste
3-fach
284510
Transistor
2
SC
1674
/LC
1674
284
460
Fu
284 513
Transistor
2
SK
544
284 448
Knopf
234 485
Schaiter
4-fach
284 484
Netzschaiter
286 500
Netztrafo
284 483
Anschlu8klemme
284
533
Antennenbuchse
283
748
Spannungswahischalter
243 750
Netzkabel
Europa
283
742
Gehauseblech
286
501
Halter
284 505
284 505
284
478
284 478
284
479
284
502
223
906
Bezeichnung
Tunerpiatte
Diode
SVC-202
AP
Diode
SVC-202
AP
Trimmer
Trimmer
Trimmer
IC
LA
1265
Diode
1
N
4148
223
906
Diode
1
N
4148
LED
/
Tastenplatte
275855
Diode
SVC
321
275 855
Diode
SVC
321
284 618
IC
TC
9174
284
506
Transistor
2
SA
608
K
284
506
Transistor
2
SA
608
K
284 512
Transistor
2
SK
49
284495
|
LED
LTL3227A
284478
|
Trimmer
284496
|
LEDLTL13215A
284478
|
Trimmer
_
284477
Keramik-Filter
284496
|
LEDLTL
13215
A
oe
a
eran
284 569
Filter
SFE
10,7
MS
284 486
Schalter
284
477
Keramik-
Filter
284 477
Keramik-Filter
284
486
Schalter
284
473
Keramik-Filter
284
466
Keramik-Filter
SFZ
450
G
;
284
472
Spule
AM
ANT
Displayplatte
284471
|
Spule
AM
OSC
284
516
Kondensator
5,5
/
0,047
F
284
469
Spule
FM
DET
223
906
Diode
1
N
4148
284
470
Spule
AM
IF
223
906
Diode
1
N
4148
284
510
284510
223 906
Diode
1
N
4148
Transistor
2
SC
1674/LC
1674
Transistor
2
SC
1674
/LC
1674
274006
|
Diode
RD
6,2
223906
|
Diode
1N
4148
269092
|
Transistor
2
SC
536
FG
282021
Diode
1
N
4003
284
506
Transistor
2
SA
608
K
993906
Diode
1
N
4148
269 092
Transistor
2
SC
536
F
G
293906
Diode
1
N
4148
269092
|
Transistor
2
SC
536
F
G
284509
|
Transistor
2
SC
1571
284 506
Transistor
2
SA
608
K
269
092
Transistor
2
SC
536
284511
|
Transistor
2
SC
3402
284506
|
Transistor
2
SA
608
K
284506
|
Transistor
2
SA
608
K
284508
|
Transistor
2
SC
2274
284511
Transistor
2
SC
3402
284508
Transistor
2
SC
2274
284
506
Transistor
2
SA
608
K
284 506
Transistor
2
SA
608
K
284511
Transistor
2
SC
3402
269 092
Transistor
2
SC
536
F
G
269
092
Transistor
2
SC
536
FG
284 506
Transistor
2
SA
608
K
284 463
Spule
MPX
284511
Transistor
2
SC
3402
284462
|
Spule
FM
MPX
284 506
Transistor
2
SA
608
K
284 462
Spule
FM
MPX
284
511
Transistor
2
SC
3402
984
474
Keramik-Filter
284
506
Transistor
2
SA
608
K
983
385
iC
LA
3400
N
284511
Transistor
2
SC
3402
273253
IC
NUM
4558
D-D
284
506
Transistor
2
SA
608
K
284
509
Transistor
2
SC
1570
/
1571
284511
Transistor
2
SC
3402
284
509
Transistor
2
SC
1570
/
1571
284 506
Transistor
2
SA
608
K
273904
Transistor
2
SK
246
Y
284511
Transistor
2
SC
3402
269 092
Transistor
2
SC
536
F
G
284
506
Transistor
2
SA
608
K
284506
Transistor
2
SA
608
K
284511
Transistor
2
SC
3402
269
092
Transistor
2
SC
536
F
G
284 506
Transistor
2
SA
608
K
284
507
Transistor
2
SA
984
284511
Transistor
2
SC
3402
284
506
Transistor
2
SA
608
K
223
906
Diode
1
N
4148
284511
Transistor
2
SC
3402
223906
Diode
1
N
4148
284
506
Transistor
2
SA
608
K
284501
IC
TC
9172
P
284511
Transistor
2
SC
3402
284
500
IC
TC
4081
284
506
Transistor
2
SA
608
K
284511
Transistor
2
SC
3402
282
021
Diode
1
N
4003
284498
|
IC
TC
9303
282021
|
Diode
1
N
4003
284499
|
ICLB
1423
274006
|
Diode
RD
6,2
284503
|
Quarz
7,2
MHz
284504
|
Diode
RD18E
274006
|
Diode
RD
6,2
284497
|
Display
282021
|
Diode
1
N
4003
Anderungen
vorbehalten!
Subject
to
change!
Sous
reserve
de
modification!

Ersatzteile
-
Replacement
parts
-
Pieces
détachées
-
CT
5750
284
508
Transistor
2
SC
2274
284 662
Faltschachtel
282
002
Transistor
2
SD
600
/
EGC
373
284
790
Styroporeiniage
284
507
Transistor
2
SA
984
K
283
579
Bedienungsanieitung
284 587
IC
NUM
78M
15
284 603
Antenne
284 482
Cinchbuchse
284
521
Hilfsantenne
Anderungen
vorbehalten!
Subject
to
change!
Sous
réserve
de
modification!
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2
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