Sony XR-CA370 / XR-CA370X (serv.man2) Service Manual ▷ View online
SERVICE MANUAL
FM/MW/LW CASSETTE CAR STEREO
AEP Model
UK Model
SPECIFICATIONS
XR-CA370/CA370X
Photo: XR-CA370X
Ver 1.2 2003.02
Model Name Using Similar Mechanism
NEW
Tape Transport Mechanism Type
MG-36SZ13-32
CA
9-874-223-03
Sony Corporation
2003B0500-1
e Vehicle Company
C
2003.02
Published by Sony Engineering Corporation
Cassette player section
Tape track
4-track 2-channel stereo
Wow and flutter
0.13 % (WRMS)
Frequency response
30 – 15,000 Hz
Signal-to-noise ratio
55 dB
Tuner section
FM
Tuning range
87.5 – 108.0 MHz
Aerial terminal
External aerial connector
Intermediate frequency
10.7 MHz/450 kHz
Usable sensitivity
9 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
67 dB (stereo),
69 dB (mono)
69 dB (mono)
Harmonic distortion at 1 kHz
0.5 % (stereo),
0.3 % (mono)
0.3 % (mono)
Separation
35 dB at 1 kHz
Frequency response
30 – 15,000 Hz
MW/LW
Tuning range
MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
Aerial terminal
External aerial connector
Intermediate frequency
10.7 MHz/450kHz
Sensitivity
MW: 30
µ
V
LW: 40
µ
V
Power amplifier section
Outputs
Speaker outputs
(sure seal connectors)
Speaker impedance
4 – 8 ohms
Maximum power output 45 W
×
4 (at 4 ohms)
General
Outputs
Audio output
Power aerial relay control
terminal
Power amplifier control
terminal
terminal
Power amplifier control
terminal
Inputs
BUS control input terminal
BUS audio input terminal
Tone controls
Low:
±
10 dB at 60 Hz (Xplod)
Mid:
±
10 dB at 1 kHz (Xplod)
High:
±
10 dB at 10 kHz (Xplod)
Power requirements
12 V DC car battery
(negative earth)
Dimensions
Approx. 178
×
50
×
178 mm
(w/h/d)
Mounting dimensions
Approx. 182
×
53
×
161 mm
(w/h/d)
Mass
Approx. 1.2 kg
Supplied accessories
Parts for installation and
connections (1 set)
Front panel case (1)
Front panel case (1)
Design and specifications are subject to change
without notice.
without notice.
2
XR-CA370/CA370X
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
TABLE OF CONTENTS
SERVICING NOTES
...............................................
2
1.
GENERAL
Location of Controls .......................................................
3
Setting the Clock .............................................................
3
2.
DISASSEMBLY
2-1. Disassembly Flow ...........................................................
6
2-2. Sub Panel .........................................................................
6
2-3. Mechanism Deck (MG-36SZ13-32) ...............................
7
2-4. MAIN Board ...................................................................
7
2-5. Heat Sink .........................................................................
8
2-6. Bracket (MD) ..................................................................
8
2-7. DC Motor (Capstan/Reel) (M901) .................................
9
2-8. Main Belt, Sub Belt (C) ..................................................
9
2-9. Magnetic Head (Playback) (HP901) .............................. 10
3.
MECHANICAL ADJUSTMENTS
....................... 11
4.
ELECTRICAL ADJUSTMENTS
......................... 11
Tape Deck Section .......................................................... 11
Tuner Section .................................................................. 12
Tuner Section .................................................................. 12
5.
DIAGRAMS
5-1. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 13
5-2. Printed Wiring Board – MAIN Board – ........................ 15
5-3. Schematic Diagram – MAIN Board (1/2) – .................. 16
5-4. Schematic Diagram – MAIN Board (2/2) – .................. 17
5-5. Printed Wiring Board – CONTROL Board – ................ 18
5-6. Schematic Diagram – CONTROL Board – ................... 19
5-7. IC Pin Function Description ........................................... 20
5-3. Schematic Diagram – MAIN Board (1/2) – .................. 16
5-4. Schematic Diagram – MAIN Board (2/2) – .................. 17
5-5. Printed Wiring Board – CONTROL Board – ................ 18
5-6. Schematic Diagram – CONTROL Board – ................... 19
5-7. IC Pin Function Description ........................................... 20
6.
EXPLODED VIEWS
6-1. General Section ............................................................... 22
6-2. Front Panel Section ......................................................... 23
6-3. Main Board Section ........................................................ 24
6-4. Mechanism Deck Section (MG-36SZ13-32) ................. 25
6-2. Front Panel Section ......................................................... 23
6-3. Main Board Section ........................................................ 24
6-4. Mechanism Deck Section (MG-36SZ13-32) ................. 25
7.
ELECTRICAL PARTS LIST
............................... 26
Ver 1.2
SERVICING NOTES
SERVICE POSITION
In checking the control board and main board, prepare two jigs
(extension (MD) cord J-2502-060-1 and
connection cable for F/P to main J-2502-072-1).
(extension (MD) cord J-2502-060-1 and
connection cable for F/P to main J-2502-072-1).
main board
(CN600)
(CN600)
mechanism deck
main board (CN350)
main board (CN300)
control board (CN900)
connect jig
(connection cable
for F/P to main J-2502-072-1)
to the main board (CN600) and
control board (CN900).
(connection cable
for F/P to main J-2502-072-1)
to the main board (CN600) and
control board (CN900).
connect jig
(extention (MD) cord J-2502-060-1)
to the main board (CN300, CN350)
and mechanism deck.
(extention (MD) cord J-2502-060-1)
to the main board (CN300, CN350)
and mechanism deck.
3
XR-CA370/CA370X
SECTION 1
GENERAL
This section is extracted from
instruction manual.
instruction manual.
Location of controls
Refer to the pages listed for details.
1 SOURCE (Radio/CD/MD) button
2 MODE button
During radio reception:
Band select
During CD/MD playback:
CD/MD unit select
3 Volume +/– button
4
Z (eject) button
5 Display window
6
m/M (fast winding)/DIR (tape
transport direction change) buttons
transport direction change) buttons
7 SEEK button
Seek
Automatic Music Sensor
Manual search
Automatic Music Sensor
Manual search
8 DSPL (display mode change) button
9 EQ3 button
q; RELEASE (front panel release) button
qa SEL (select) button
qs RESET button (located on the front side
of the unit behind the front panel)
qd AF button
qf ATT (attenuate) button
qg Number buttons
During radio reception:
Preset number select
During CD/MD playback:
(1) DISC –
(2) DISC +
(2) DISC +
(3) REP
(4) SHUF
(4) SHUF
qh PTY (programme type)/ATA button
qj TA button
qk SENS/BTM button
ql OFF button
*
*
Warning when installing in a car
without ACC (accessory) position on
the ignition key switch
Be sure to press
without ACC (accessory) position on
the ignition key switch
Be sure to press
(OFF) on the unit for 2
seconds to turn off the clock display after
turning off the engine.
When you press
turning off the engine.
When you press
(OFF) momentarily, the
clock display does not turn off and this
causes battery wear.
causes battery wear.
XR-CA370X/CA370
SOURCE
MODE
SEL
RELEASE
EQ3
DSPL
DISC
REP
SHUF
ATA
OFF
SENS
BTM
SEEK
DIR
AF
ATT
1
2
3
4
5
6
TA
PTY
to go forward
to go back
to go forward
to go back
Setting the clock
The clock uses a 24-hour digital indication.
Example: To set the clock to 10:08
1
Press
(DSPL) for 2 seconds.
The hour indication flashes.
1 Press either side of the volume button
to set the hour.
2 Press (SEL).
The minute indication flashes.
3 Press either side of the volume button
to set the minute.
2
Press
(DSPL).
The clock starts.
f
h
l k
l
h
4
XR-CA370/CA370X
BUS
AUDIO IN
AUDIO
OUT
3
Source selector
(not supplied)
(not supplied)
Signalquellenwähler
(nicht mitgeliefert)
(nicht mitgeliefert)
Sélecteur de source
(non fourni)
(non fourni)
Selettore di sorgente
(non in dotazione)
(non in dotazione)
Geluidsbronkiezer
(niet meegeleverd)
(niet meegeleverd)
XA-C30
Supplied with the CD/MD changer
Mit dem CD/MD-Wechsler geliefert
Fourni avec le changeur de CD/MD
In dotazione con il cambia CD/MD
Geleverd met de CD/MD-wisselaar
Mit dem CD/MD-Wechsler geliefert
Fourni avec le changeur de CD/MD
In dotazione con il cambia CD/MD
Geleverd met de CD/MD-wisselaar
Supplied with XA-C30
Mit dem XA-C30 geliefert
Fourni avec le XA-C30
In dotazione con il modello XA-C30
Geleverd met de XA-C30
Mit dem XA-C30 geliefert
Fourni avec le XA-C30
In dotazione con il modello XA-C30
Geleverd met de XA-C30
5
from car aerial*
von Autoantenne*
a partir de l’antenne de la voiture*
dall’antenna dell’auto*
van een auto-antenne*
von Autoantenne*
a partir de l’antenne de la voiture*
dall’antenna dell’auto*
van een auto-antenne*
Fuse (10 A)
Sicherung (10 A)
Fusible (10 A)
Fusibile (10 A)
Zekering (10 A)
Sicherung (10 A)
Fusible (10 A)
Fusibile (10 A)
Zekering (10 A)
BUS AUDIO IN
BUS CONTROL IN
6
1
3
5
7
2
4
6
8
*
Note for the aerial connecting
If your car aerial is an ISO (International
Organisation for Standardisation) type, use the
supplied adaptor
Organisation for Standardisation) type, use the
supplied adaptor
5 to connect it.
First connect the car aerial to the supplied
adaptor, then connect it to the aerial jack of the
master unit.
adaptor, then connect it to the aerial jack of the
master unit.
*
Hinweis zum Anschließen der Antenne
Wenn Ihre Fahrzeugantenne der ISO-Norm (ISO =
International Organization for Standardization -
Internationale Normungsgemeinschaft)
entspricht, schließen Sie sie mithilfe des
mitgelieferten Adapters
International Organization for Standardization -
Internationale Normungsgemeinschaft)
entspricht, schließen Sie sie mithilfe des
mitgelieferten Adapters
5 an.
Verbinden Sie zuerst die Fahrzeugantenne mit
dem mitgelieferten Adapter und verbinden Sie
diesen dann mit der Antennenbuchse des
Hauptgeräts.
dem mitgelieferten Adapter und verbinden Sie
diesen dann mit der Antennenbuchse des
Hauptgeräts.
*
Remarque sur le raccordement de l’antenne
Si votre antenne de voiture est de type ISO
(organisation internationale de normalisation),
utilisez l’adaptateur fourni
(organisation internationale de normalisation),
utilisez l’adaptateur fourni
5 pour la raccorder.
Raccordez d’abord l’antenne de voiture à
l’adaptateur fourni et, ensuite, à la prise
d’antenne de l’appareil principal.
l’adaptateur fourni et, ensuite, à la prise
d’antenne de l’appareil principal.
RCA pin cord (not supplied)
Cinchkabel (nicht mitgeliefert)
Cordon à broche RCA (non fourni)
Cavo a piedini RCA (non in dotazione)
Tulpstekkersnoer (niet meegeleverd)
Cinchkabel (nicht mitgeliefert)
Cordon à broche RCA (non fourni)
Cavo a piedini RCA (non in dotazione)
Tulpstekkersnoer (niet meegeleverd)
*
Nota per il collegamento dell’antenna
Se l’antenna dell’auto è di tipo ISO (International
Organization Standardization), utilizzare
l’adattatore
Organization Standardization), utilizzare
l’adattatore
5 in dotazione per collegarla.
Collegare prima l’antenna dell’auto all’adattatore
in dotazione, quindi collegarla alla presa
dell’antenna dell’apparecchio principale.
in dotazione, quindi collegarla alla presa
dell’antenna dell’apparecchio principale.
*
Opmerking bij de antenne-aansluiting
Indien uw auto is uitgerust met een antenne van
het type ISO (International Organisation for
Standardization), moet u die aansluiten met
behulp van de meegeleverde adapter
het type ISO (International Organisation for
Standardization), moet u die aansluiten met
behulp van de meegeleverde adapter
5.
Sluit eerst de auto-antenne aan op de
meegeleverde adapter en vervolgens de
antennestekker op het hoofdtoestel.
meegeleverde adapter en vervolgens de
antennestekker op het hoofdtoestel.
AUDIO OUT
REAR
See “Power connection diagram” on the reverse side for details.
Näheres dazu finden Sie im “Stromanschlussdiagramm”. Blättern
Sie dazu bitte um.
Voir le “Schéma de connexion d’alimentation” au verso pour
plus de détails.
Per ulteriori informazioni, vedere “Schema dei collegamenti di
alimentazione” sulla retrocopertina.
Zie “Voedingsaansluitschema” op de achterkant voor meer
details.
Näheres dazu finden Sie im “Stromanschlussdiagramm”. Blättern
Sie dazu bitte um.
Voir le “Schéma de connexion d’alimentation” au verso pour
plus de détails.
Per ulteriori informazioni, vedere “Schema dei collegamenti di
alimentazione” sulla retrocopertina.
Zie “Voedingsaansluitschema” op de achterkant voor meer
details.
5
7
4
8
1
2
3
4
Speaker, Rear, Right
Lautsprecher hinten rechts
Haut-parleur, arrière, droit
Haut-parleur, arrière, droit
Diffusore, posteriore, destro
Luidspreker, achter, rechts
Speaker, Rear, Right
Lautsprecher hinten rechts
Haut-parleur, arrière, droit
Haut-parleur, arrière, droit
Diffusore, posteriore, destro
Luidspreker, achter, rechts
Speaker, Front, Right
Lautsprecher vorne rechts
Haut-parleur, avant, droit
Haut-parleur, avant, droit
Diffusore, anteriore, destro
Luidspreker, voor, rechts
Speaker, Front, Right
Lautsprecher vorne rechts
Haut-parleur, avant, droit
Haut-parleur, avant, droit
Diffusore, anteriore, destro
Luidspreker, voor, rechts
5
6
7
8
Speaker, Front, Left
Lautsprecher vorne links
Haut-parleur, avant, gauche
Diffusore, anteriore, sinistro
Diffusore, anteriore, sinistro
Luidspreker, voor, links
Speaker, Front, Left
Lautsprecher vorne links
Haut-parleur, avant, gauche
Diffusore, anteriore, sinistro
Diffusore, anteriore, sinistro
Luidspreker, voor, links
Speaker, Rear, Left
Lautsprecher hinten links
Haut-parleur, arrière, gauche
Diffusore, posteriore, sinistro
Diffusore, posteriore, sinistro
Luidspreker, achter, links
Speaker, Rear, Left
Lautsprecher hinten links
Haut-parleur, arrière, gauche
Diffusore, posteriore, sinistro
Diffusore, posteriore, sinistro
Luidspreker, achter, links
Purple
Violett
Mauve
Violett
Mauve
Viola
Paars
Paars
Negative polarity positions 2, 4, 6, and 8 have striped cords.
An den negativ gepolten Positionen (2, 4, 6 und 8) befinden sich gestreifte Adern.
Les positions de polarité négative 2, 4, 6 et 8 sont dotées de cordons rayés.
Le posizioni a polarità negativa 2, 4, 6 e 8 hanno cavi rigati.
De posities voor negatieve polariteit (2, 4, 6 en 8) hebben gestreepte kabels.
An den negativ gepolten Positionen (2, 4, 6 und 8) befinden sich gestreifte Adern.
Les positions de polarité négative 2, 4, 6 et 8 sont dotées de cordons rayés.
Le posizioni a polarità negativa 2, 4, 6 e 8 hanno cavi rigati.
De posities voor negatieve polariteit (2, 4, 6 en 8) hebben gestreepte kabels.
Green
Grün
Vert
Verde
Groen
Groen
White
Weiß
Blanc
Blanc
Bianco
Wit
Grey
Grau
Grau
Gris
Grigio
Grijs
+
–
+
–
+
–
+
–
continuous power supply
permanente Stromversorgung
alimentation continue
alimentazione continua
continu voeding
power aerial control
Motorantennen-Steuerleitung
Commande de l’antenne électrique
comando dell’antenna elettrica
automatische antenne
7
8
Red
Rot
Rot
Rouge
Rosso
Rood
Black
Schwarz
Noir
Nero
Zwart
switched power supply
geschaltete Stromversorgung
alimentation commutée
alimentazione commutata
geschakelde voeding
earth
Masse
masse
masse
terra
aarding
Yellow
Gelb
Jaune
Giallo
Giallo
Geel
Blue
Blau
Bleu
Blau
Bleu
Blu
Blauw
4
5
Positions 1, 2, 3 and 6 do not have pins.
An Position 1, 2, 3 und 6 befinden sich keine Stifte.
Les positions 1, 2, 3 et 6 ne comportent pas de broches.
Le posizioni 1, 2, 3 e 6 non hanno piedini.
De posities 1, 2, 3 en 6 hebben geen pins.
An Position 1, 2, 3 und 6 befinden sich keine Stifte.
Les positions 1, 2, 3 et 6 ne comportent pas de broches.
Le posizioni 1, 2, 3 e 6 non hanno piedini.
De posities 1, 2, 3 en 6 hebben geen pins.
AMP REM
from the car’s speaker connector
vom Lautsprecheranschluss des Fahrzeugs
A partir du connecteur de haut-parleur de la voiture
dal connettore del diffusore dell’auto
van de autoluidsprekerstekker
vom Lautsprecheranschluss des Fahrzeugs
A partir du connecteur de haut-parleur de la voiture
dal connettore del diffusore dell’auto
van de autoluidsprekerstekker
from the car’s power connector
vom Stromanschluss des Fahrzeugs
A partir du connecteur d’alimentation de la voiture
dal connettore di alimentazione dell’auto
van de autovoedingsstekker
vom Stromanschluss des Fahrzeugs
A partir du connecteur d’alimentation de la voiture
dal connettore di alimentazione dell’auto
van de autovoedingsstekker
A
Equipment used in illustrations (not supplied)
In Abbildungen dargestellte Geräte (nicht mitgeliefert)
Appareils utilisés dans les illustrations (non fournis)
Apparecchiatura utilizzata nelle illustrazioni (non in dotazione)
Apparatuur gebruikt voor illustratiedoeleinden (niet meegeleverd)
In Abbildungen dargestellte Geräte (nicht mitgeliefert)
Appareils utilisés dans les illustrations (non fournis)
Apparecchiatura utilizzata nelle illustrazioni (non in dotazione)
Apparatuur gebruikt voor illustratiedoeleinden (niet meegeleverd)
Rear speaker
Hecklautsprecher
Haut-parleur arrière
Diffusore posteriore
Achterluidspreker
Hecklautsprecher
Haut-parleur arrière
Diffusore posteriore
Achterluidspreker
Front speaker
Frontlautsprecher
Haut-parleur avant
Diffusore anteriore
Voorluidspreker
Frontlautsprecher
Haut-parleur avant
Diffusore anteriore
Voorluidspreker
CD/MD changer
CD/MD-Wechsler
Changeur de CD/MD
Cambia CD/MD
CD/MD-wisselaar
CD/MD-Wechsler
Changeur de CD/MD
Cambia CD/MD
CD/MD-wisselaar
Power amplifier
Endverstärker
Amplificateur de puissance
Amplificatore di potenza
Eindversterker
Endverstärker
Amplificateur de puissance
Amplificatore di potenza
Eindversterker
B
BUS AUDIO IN
BUS CONTROL IN
BUS CONTROL IN
BUS AUDIO IN
Source selector*
Signalquellenwähler*
Sélecteur de source*
Selettore di sorgente*
Geluidsbronkiezer*
Signalquellenwähler*
Sélecteur de source*
Selettore di sorgente*
Geluidsbronkiezer*
XA-C30
2
A
AUDIO OUT
REAR
*
not supplied
nicht mitgeliefert
non fourni
non in dotazione
niet meegeleverd
nicht mitgeliefert
non fourni
non in dotazione
niet meegeleverd
Catch
Cautions
• This unit is designed for negative earth 12 V DC operation only.
• Do not get the wires under a screw, or caught in moving parts
• Do not get the wires under a screw, or caught in moving parts
(e.g. seat railing).
• Before making connections, turn the car ignition off to avoid
short circuits.
• Connect the power connecting cord
6 to the unit and speakers
before connecting it to the auxiliary power connector.
• Run all earth wires to a common earth point.
• Be sure to insulate any loose unconnected wires with electrical
• Be sure to insulate any loose unconnected wires with electrical
tape for safety.
Notes on the power supply cord (yellow)
• When connecting this unit in combination with other stereo
• When connecting this unit in combination with other stereo
components, the connected car circuit’s rating must be higher
than the sum of each component’s fuse.
than the sum of each component’s fuse.
• When no car circuits are rated high enough, connect the unit
directly to the battery.
Parts list (
1)
• The numbers in the list are keyed to those in the instructions.
• The bracket
• The bracket
1 and the protection collar 4 are attached to the
unit before shipping. Before mounting the unit, use the release
keys
keys
7 to remove the bracket 1 and the protection collar 4
from the unit. For details, see “Removing the protection collar
and the bracket (4)” on the reverse side of the sheet.
and the bracket (4)” on the reverse side of the sheet.
• Keep the release keys
7 for future use as they are also
necessary if you remove the unit from your car.
Caution
Handle the bracket
Handle the bracket
1 carefully to avoid injuring your fingers.
Note
Before installing, make sure that the catches on both sides of the
bracket
Before installing, make sure that the catches on both sides of the
bracket
1 are bent inwards 2 mm. If the catches are straight or
bent outwards, the unit will not be installed securely and may
spring out.
spring out.
Connection example (
2)
Notes (2-B-
)
• Be sure to connect the earth cord before connecting the
amplifier.
• If you connect an optional power amplifier and do not use the
built-in amplifier, the beep sound will be deactivated.
Tip ( 2-B-
)
For connecting two or more CD/MD changers, the source selector
XA-C30 (optional) is necessary.
XA-C30 (optional) is necessary.
Connection diagram (
3)
A To AMP REMOTE IN of an optional power amplifier
This connection is only for amplifiers. Connecting any other
system may damage the unit.
system may damage the unit.
Warning
If you have a power aerial without a relay box, connecting this unit
with the power connecting cord
If you have a power aerial without a relay box, connecting this unit
with the power connecting cord
6 may damage the aerial.
Notes on the control leads
• The power aerial control lead (blue) supplies +12 V DC when you
• The power aerial control lead (blue) supplies +12 V DC when you
turn on the tuner or when you activate the AF (Alternative
Frequency), TA (Traffic Announcement) function.
Frequency), TA (Traffic Announcement) function.
• When your car has built-in FM/MW/LW aerial in the rear/side
glass, connect the power aerial control lead (blue) or the
accessory power input lead (red) to the power terminal of the
existing aerial booster. For details, consult your dealer.
accessory power input lead (red) to the power terminal of the
existing aerial booster. For details, consult your dealer.
• A power aerial without a relay box cannot be used with this unit.
Memory hold connection
When the yellow power input lead is connected, power will always
be supplied to the memory circuit even when the ignition switch is
turned off.
When the yellow power input lead is connected, power will always
be supplied to the memory circuit even when the ignition switch is
turned off.
Notes on speaker connection
• Before connecting the speakers, turn the unit off.
• Use speakers with an impedance of 4 to 8 ohms, and with
• Before connecting the speakers, turn the unit off.
• Use speakers with an impedance of 4 to 8 ohms, and with
adequate power handling capacities to avoid its damage.
• Do not connect the speaker terminals to the car chassis, or
connect the terminals of the right speakers with those of the left
speaker.
speaker.
• Do not connect the earth lead of this unit to the negative (–)
terminal of the speaker.
• Do not attempt to connect the speakers in parallel.
• Connect only passive speakers. Connecting active speakers (with
• Connect only passive speakers. Connecting active speakers (with
built-in amplifiers) to the speaker terminals may damage the unit.
• To avoid a malfunction, do not use the built-in speaker wires
installed in your car if the unit shares a common negative (–) lead
for the right and left speakers.
for the right and left speakers.
• Do not connect the unit’s speaker cords to each other.
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