SERVICE MANUAL
Sony Corporation
e Vehicle Group
Published by Sony Engineering Corporation
US Model
CDX-GT40W/GT400
Canadian Model
CDX-GT400
E Model
CDX-GT450/GT450S
9-879-890-01
2005J04-1
© 2005.10
Ver. 1.0 2005.10
SPECIFICATIONS
CDX-GT40W/GT400/
GT450/GT450S
AUDIO POWER SPECIFICATIONS (US MODEL)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
23.2 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.
CD player section
Signal-to-noise ratio
120 dB
Frequency response
10 20,000 Hz
Wow and flutter
Below measurable limit
Tuner section
FM
Tuning range
87.5 107.9 MHz (US, CND model)
87.5 108 MHz (at 50 kHz step) (E model)
87.5 107.9 MHz (at 200 kHz step) (E model)
FM tuning interval
50 kHz/200 kHz switchable (E model)
Antenna terminal
External antenna 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)
Harmonic distortion at 1 kHz
0.5% (stereo), 0.3% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 15,000 Hz
AM
Tuning range
530 1,710 kHz (US, CND model)
531 1,602 kHz (at 9 kHz step) (E model)
530 1,710 kHz (at 10 kHz step) (E model)
AM tuning interval
9 kHz/10 kHz switchable (E model)
Antenna terminal
External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity
30
µV
Power amplifier section
Outputs
Speaker outputs (sure seal connectors)
Speaker impedance
4 8 ohms
Maximum power output
52 W
× 4 (at 4 ohms)
General
Outputs
Audio outputs terminal (front/rear)
Subwooofer output terminal (mono)
Power antenna relay control terminal
Power amplifier control terminal
Inputs
Telephone ATT control terminal
Illumination control terminal
BUS control input terminal
BUS audio input terminal
Remote controller input terminal
Antenna input terminal
AUX input jack (stereo mini jack)
· The tuner and CD sections have no adjustments.
Model Name Using Similar Mechanism
CDX-GT30W/GT300/
GT350/GT350S
CD Drive Mechanism Type
MG-611WA-186//Q
Optical Pick-up Name
KSS1000E
Continued on next page
FM/AM COMPACT DISC PLAYER
2
CDX-GT40W/GT400/GT450/GT450S
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE
COMPONENTS WITH
SONY
PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical pick-
up block.
optical pick-up
semi-fixed resistor
SERVICE NOTES
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 ground)
Dimensions
Approx. 178
× 50 × 181 mm
(7 1/8
× 2 × 7 1/4 in.) (w/h/d)
Mounting dimensions
Approx. 182
× 53 × 162 mm
(7 1/4
× 2 1/8 × 6 1/2 in.) (w/h/d)
Mass
Approx. 1.2 kg (2 lb. 11 oz.)
Supplied accessories
Parts for installation and connections (1 set)
Card remote commander: RM-X151
US and foreign patents licensed from Dolby Laboratories.
Note
This unit cannot be connected to a digital preamplifier or an equalizer
which is Sony BUS system compatible.
Design and specifications are subject to change without
notice.
·Abbreviation
CND : Canadian model
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
Notes on Chip Component Replacement
· Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be damaged
by heat.
TEST DISCS
This set can playback CD-R and CD-ROM discs. The following
test discs should be used to check the capability:
CD-R test disc TCD-R082LMT (Part No. J-2502-063-1)
CD-RW test disc TCD-W082L (Part No. J-2502-063-2)
3
CDX-GT40W/GT400/GT450/GT450S
·UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
· Unleaded solder melts at a temperature about 40
°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
· Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
· Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
This label is located on the bottom of the chassis.
· CD Playback:
You can play CD-DA (also containing CD TEXT*1), CD-R/CD-
RW (MP3 WMA files also containing Multi Session and ATRAC
CD (ATRAC3 and ATRAC3plus format).
Type of discs
Label on the disc
CD-DA
MP3
WMA
ATRAC CD
*1 A CD TEXT disc is a CD-DA that includes information such as
disc, artist and track name.
EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.
· Connect the MAIN board (CN350) and the SERVO board (CN2)
with the extension cable (Part No. J-2502-076-1).
SERVO BOARD
CN2
MAIN BOARD
CN350
J-2502-076-1
· E model
4
CDX-GT40W/GT400/GT450/GT450S
TABLE OF CONTENTS
1.
GENERAL
Location of Control (CDX-GT40W) ...............................
5
Connections (CDX-GT40W) ..........................................
5
Location of Control (CDX-GT400) ................................
7
Connections (CDX-GT400) ............................................
7
Location of Control (CDX-GT450/GT450S) ..................
9
Connections (CDX-GT450/GT450S) ..............................
9
2.
DISASSEMBLY
2-1.
Sub Panel Assy ................................................................ 12
2-2.
CD Mechanism Block ..................................................... 12
2-3.
Main Board ...................................................................... 13
2-4.
Chassis (T) Sub Assy ....................................................... 13
2-5.
Roller Arm Assy .............................................................. 14
2-6.
Chassis (OP) Assy ........................................................... 14
2-7.
Optical Pick-up ................................................................ 15
2-8.
SL Motor Assy (M902) ................................................... 15
2-9.
LE Motor Assy (M903) ................................................... 16
2-10. Servo Board ..................................................................... 16
3.
DIAGRAMS
3-1.
Block Diagram CD Section ......................................... 17
3-2.
Block Diagram Main Section ...................................... 18
3-3.
Block Diagram Key Section ........................................ 19
3-4.
Circuit Boards Location .................................................. 19
3-5.
Printed Wiring Boards CD Mechanism Section .......... 21
3-6.
Schematic Diagram CD Mechanism Section (1/2) ..... 22
3-7.
Schematic Diagram CD Mechanism Section (2/2) ..... 23
3-8.
Printed Wiring Board Main Section ............................ 24
3-9.
Schematic Diagram Main Section (1/2) ...................... 25
3-10. Schematic Diagram Main Section (2/2) ...................... 26
3-11. Printed Wiring Board Sub Section .............................. 27
3-12. Schematic Diagram Sub Section ................................. 28
3-13. Printed Wiring Board Key Section .............................. 29
3-14. Schematic Diagram Key Section ................................. 30
4.
EXPLODED VIEWS
4-1.
Main Section .................................................................... 38
4-2.
Front Panel Section ......................................................... 39
4-3.
CD Mechanism Section (1) ............................................. 40
4-4.
CD Mechanism Section (2) ............................................. 41
4-5.
CD Mechanism Section (3) ............................................. 42
4-6.
CD Mechanism Section (4) ............................................. 43
5.
ELECTRICAL PARTS LIST .................................. 44
5
CDX-GT40W/GT400/GT450/GT450S
SECTION 1
GENERAL
6
Location of controls and basic operations
Main unit
Front panel removed
Card remote commander
RM-X151
Refer to the pages listed for details. The
corresponding buttons on the card remote
commander control the same functions as those
on the unit.
A OFF button
To power off; stop the source.
B Volume control dial/select button 9
To adjust volume (rotate); select setup items
(press and rotate).
C Receptor for the card remote
commander
D COLOR button
To select one of 7 color settings for the LCD.
E Display window
F DSO button 2
To select the DSO mode (1, 2, 3 or OFF).
The larger the number, the more enhanced
the effect.
G OPEN button 5
CDX-GT40W
RESET
ql
w;
qk
OFF
DSPL
SCRL
SEL
SOURCE
MODE
13
2
46
5
ATT
VOL
+
+
qs
wf
qd
1
wa
q;
wd
ws
wj
wh
wg
7
H GP*1/ALBM*2 +/ buttons*3
To skip groups/albums (press); skip groups/
albums continuously (press and hold).
I SEEK /+ buttons
CD:
To skip tracks (press); skip tracks
continuously (press, then press again within
about 1 second and hold); reverse/fast-
forward a track (press and hold).
Radio:
To tune in stations automatically (press); find
a station manually (press and hold).
J DSPL (display) button 8
To change display items.
K BTM/CAT*4 button 8
To start the BTM function (press and hold).
L SOURCE button
To power on; change the source (Radio/CD/
MD*5/AUX/SAT*4).
M MODE button 8, 10
To select the radio band (FM/AM)/select the
SAT tuner band (mode)*4/select the unit*6.
N SENS button
To improve weak reception: LOCAL/
MONO.
O Number buttons
CD/MD*5:
(3): REP 8
(4): SHUF 8
(5): BBE MP*7 3
To activate the BBE MP function, set
"BBEMP-ON." To cancel, set
"BBEMP-OFF."
(6): PAUSE*7
To pause playback. To cancel, press
again.
Radio:
To receive stored stations (press); store
stations (press and hold).
P EQ3 (equalizer) button 9
To select an equalizer type (XPLOD,
VOCAL, EDGE, CRUISE, SPACE,
GRAVITY, CUSTOM or OFF).
Q AUX input jack 10
To connect a portable audio device.
R RESET button 4
S Z (eject) button 5
To eject the disc.
T Disc slot 5
To insert the disc.
The following buttons on the card remote
commander have also different buttons/functions
from the unit.
wa < (.)/, (>) buttons
To control CD/radio, the same as (SEEK)
/+ on the unit.
ws VOL (volume) +/ button
To adjust volume.
wd ATT (attenuate) button
To attenuate the sound. To cancel, press
again.
wf SEL (select) button
The same as the select button on the unit.
wg M (+)/m () buttons
To control CD, the same as
(GP/ALBM) +/ on the unit.
wh SCRL (scroll) button
To scroll the display item.
wj Number buttons
To receive stored stations (press); store
stations (press and hold).
*1 When an ATRAC CD is played.
*2 When an MP3/WMA is played.
*3 If the changer is connected, the operation is
different, see page 10.
*4 When the SAT tuner is connected.
*5 When an MD changer is connected.
*6 When a CD/MD changer is connected.
*7 When playing back on this unit.
Note
If the unit is turned off and the display disappears, it
cannot be operated with the card remote commander
unless (SOURCE) on the unit is pressed, or a disc is
inserted to activate the unit first.
Tip
For details on how to replace the battery, see
"Replacing the lithium battery of the card remote
commander" on page 13.
A
B
SUB OUT (MONO)
AUDIO OUT
REAR
AUDIO OUT
FRONT
BUS AUDIO IN
BUS CONTROL IN
BUS AUDIO IN
BUS CONTROL IN
Source selector*
Selctor de fuente*
XA-C30
* not supplied
no suministrado
Ejemplo de conexiones
Notas (2-A)
· Asegúrese de conectar primero el cable de conexión a masa
antes de realizar la conexión del amplificador.
· La alarma sonará únicamente si se utiliza el amplificador
incorporado.
Sugerencia (2-B- )
Si desea conectar dos o más cambiadres de CD/MD, necesitará
el selector de fuente XA-C30 (no suministrado).
Connection example
Notes (2-A)
· Be sure to connect the ground lead before connecting the
amplifier.
· The alarm will only sound if the built-in amplifier is used.
Tip (2-B- )
For connecting two or more CD/MD changers, the source
selector XA-C30 (not supplied) is necessary.
· LOCATION OF CONTROL (CDX-GT40W)
· CONNECTIONS (CDX-GT40W)