DOWNLOAD Sony CDX-GT40U / CDX-GT40UW / CDX-GT42UE / CDX-GT44U / CDX-GT45U / CDX-GT47UE Service Manual ↓ Size: 3.96 MB | Pages: 66 in PDF or view online for FREE

Model
CDX-GT40U CDX-GT40UW CDX-GT42UE CDX-GT44U CDX-GT45U CDX-GT47UE
Pages
66
Size
3.96 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-gt40u-cdx-gt40uw-cdx-gt42ue-cdx-gt44u-cdx-gt45.pdf
Date

Sony CDX-GT40U / CDX-GT40UW / CDX-GT42UE / CDX-GT44U / CDX-GT45U / CDX-GT47UE Service Manual ▷ View online

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
SPECIFICATIONS
US, Canadian, E, Mexican, Argentina, Korean, Indian model
FM/AM COMPACT DISC PLAYER
AEP, Russian, UK model
FM/MW/LW COMPACT DISC PLAYER
Saudi Arabia model
FM/MW/SW COMPACT DISC PLAYER
9-893-214-05
2012G33-1
© 
2012.07
US Model
CDX-GT40U/GT40UW
Canadian Model
CDX-GT40U
AEP Model
UK Model
CDX-GT40U/GT44U
E Model
CDX-GT45U
Russian Model
CDX-GT40U/GT42UE/GT47UE
Indian Model
CDX-GT44U
Ver. 1.4  2012.07
•  The tuner and CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS
(US model)
CEA2006 Standard
Power Output: 17 Watts RMS 
 4 at 
4 Ohms < 1 % THD + N 
SN Ratio: 80 dBA
(reference: 1 Watt into 4 Ohms)
Model Name Using Similar Mechanism
NEW
CD Drive Mechanism Type
MG-101CA-188
Optical Pick-up Name
DAX-25A
Tuner section
FM
Tuning range: 
 
US, CND, AR model: 87.5 – 107.9 MHz
 
AEP, UK, EA model: 
 
87.5 – 108.0 MHz
 
E, MX, KR, IND model: 
 
87.5 – 108.0 MHz (at 50 kHz step)
 
87.5 – 108.0 MHz (at 100 kHz step)
 
87.5 – 107.9 MHz (at 200 kHz step)
 RU 
model: 
 
FM1/FM2: 87.5 – 108.0 MHz (at 50 kHz)
 
FM3: 65 – 74 MHz (at 30 kHz)
FM tuning step:
 
E, MX, KR, IND model:
 
50 kHz/100 kHz/200 kHz switchable
Antenna (aerial) terminal:
 
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Usable sensitivity: 8 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 80 dB (stereo)
Separation: 50 dB at 1 kHz
Frequency response: 20 – 15,000 Hz
AM (US, CND, E, MX, AR, KR, IND model)
Tuning range:
 
 
US, CND, AR model: 530 – 1,710 kHz
 
E, MX, KR, IND model:
 
531 – 1,602 kHz (at 9 kHz step)
 
530 – 1,710 kHz (at 10 kHz step)
AM tuning step:
 
E, MX, KR, IND model:
 
9 kHz/10 kHz switchable
Antenna (aerial) terminal:
 
External antenna (aerial) connector
Intermediate frequency: 
 
US, CND, AR model:
 
9,115 kHz or 9,125 kHz/5 kHz
 
E, MX, KR, IND model:
 
9,124.5 kHz or 9,115.5 kHz/4.5 kHz
 
(at 9 kHz step)
 
9,115 kHz or 9,125 kHz/5 kHz
 
(at 10 kHz step)
Sensitivity: 26 
V
MW/LW (AEP, RU, UK model)
MW (EA model)
Tuning range:
 
MW: 531 – 1,602 kHz
 
LW: 153 – 279 kHz (AEP, RU, UK model)
Antenna (aerial) terminal:
 
External antenna (aerial) connector
Intermediate frequency: 
 
9,124.5 kHz or 9,115.5 kHz/4.5 kHz
Sensitivity: MW: 26 
V
 LW: 
45
V (AEP, RU, UK model)
SW (EA model)
Tuning range:
 
SW1: 2,940 – 7,735 kHz
 
SW2: 9,500 – 18,135 kHz
 
(except for 10,140 – 11,575 kHz)
Antenna (aerial) terminal:
 
External antenna (aerial) connector
Intermediate frequency:
 
9,124.5 kHz or 9,115.5 kHz/4.5 kHz
Sensitivity: 26 μV
– Continued on next page –
CDX-GT40U/GT40UW/GT42UE/
GT44U/GT45U/GT47UE
Photo: CDX-GT40U: AEP, UK model
CD player section
Signal-to-noise ratio:
 120 dB
Frequency response: 10 – 20,000 Hz
Wow and fl utter: Below measurable limit
USB Player section
Interface:
 USB (Full-speed)
Maximum current: 1 A
Power amplifi er section
Outputs:
 Speaker outputs
Speaker impedance: 4 – 8 ohms
Maximum power output: 
 
US, CND, E, EA, MX, AR, KR, IND model: 
 52 
 4 (at 4 ohms)
 
AEP, RU, UK model: 45 W 
 4 (at 4 ohms)
CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
2
1. 
SERVICE  NOTE
 ......................................................  
3
2. GENERAL
 Connections 
....................................................................  
8
3. DISASSEMBLY
3-1.   Sub Panel Assy  ...............................................................   13
3-2.   CD Mechanism Block .....................................................   14
3-3.   Main Board .....................................................................   14
3-4. Servo 
Board 
....................................................................  15
3-5.  Chassis (T) Sub Assy ......................................................   16
3-6. Roller 
Arm 
Assy 
..............................................................  16
3-7. Chassis 
(OP) 
Assy 
...........................................................  17
3-8.  Chucking Arm Sub Assy .................................................   17
3-9. Sled 
Motor 
Assy 
..............................................................  18
3-10.  Optical Pick-up Section ..................................................   19
3-11. Optical Pick-up ...............................................................   19
4. DIAGRAMS
4-1.  Block Diagram - Main Section - .....................................   21
4-2.  Block Diagram - Display Section - .................................   22
4-3.  Printed Wiring Board - Main Section (1/2) 
(Except Saudi Arabia model) - ........................................   24
4-4.  Printed Wiring Boards - Main Section (2/2) 
(Except Saudi Arabia model) - ........................................   25
4-5.  Schematic Diagram - Main Section (1/5) - .....................   26
4-6.  Schematic Diagram - Main Section (2/5) - .....................   27
4-7.  Schematic Diagram - Main Section (3/5) - .....................   28
4-8.  Schematic Diagram - Main Section (4/5) - .....................   29
4-9.  Schematic Diagram - Main Section (5/5) - .....................   30
4-10.  Printed Wiring Board - Key Section - .............................   31
4-11.  Schematic Diagram - Key Section - ...............................   32
5. EXPLODED 
VIEWS
5-1. Main 
Section 
...................................................................  43
5-2.  Front Panel Section .........................................................   44
5-3.  CD Mechanism Section (MG-101CA-188) ....................   45
6. 
ELECTRICAL PARTS LIST
 ..................................   46
Note: Refer to SUPPLEMENT-1 for printed wiring 
board of MAIN board (Saudi Arabia model).
TABLE  OF  CONTENTS
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.
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  FONC-
TIONNEMENT.  NE  REMPLACER  CES  COMPOSANTS  QUE  
PAR  DES  PIÈCES  SONY  DONT  LES  NUMÉROS  SONT  DON-
NÉS  DANS  CE  MANUEL  OU  DANS  LES  SUPPLÉMENTS  
PUBLIÉS  PAR  SONY.
Except US, Canadian model:
This label is located on the bottom of the chassis.
Ver. 1.2
General
Outputs:
 
Audio outputs terminal (rear/sub switchable)
 
US, CND, E, EA, MX, AR, KR, IND model:
 
Power antenna (aerial)/Power amplifi er control 
 
terminal (REM OUT)
 
AEP, RU, UK model:
 
Power antenna (aerial) relay control terminal
 Power 
amplifi er control terminal
Inputs:
 
Remote controller input terminal
 
Antenna (aerial) input terminal
 
AUX input jack (stereo mini jack)
 
USB signal input connector
Power requirements: 12 V DC car battery
 
(negative ground (earth))
Dimensions: Approx. 178 × 50 × 179 mm
 (7 
1/8 × 2 × 7 1/8 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:
 Remote 
commander: 
 
RM-X211 (US, CND, E, EA, MX, AR, KR, IND model)
 
Parts for installation and connections (1 set)
Design and specifi cations are subject to change
without notice.
• Abbreviation
 AR  : 
Argentina 
model
  CND  : Canadian model
  EA 
: Saudi Arabia model
  IND 
: Indian model
  KR 
: Korean model
  MX 
: Mexican model
  RU 
: Russian model
NOTES  ON  CHIP  COMPONENT  REPLACEMENT
• 
Never reuse a disconnected chip component.
• 
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
3
SECTION  1
SERVICE  NOTE
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP  
BLOCK  OR  BASE  UNIT
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated by 
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also 
use the procedure in the printed matter which is included in the 
repair parts.
The fl exible 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 refl ective surface by the objective lens in the optical 
pickup block. Therefore, when checking the laser diode emission, 
observe from more than 30 cm away from the objective lens.
NOTE  FOR  REPLACEMENT  OF  THE  SERVO  BOARD
When repairing, the complete SERVO board should be replaced 
since any parts in the SERVO board cannot be repaired.
NOTE  FOR  REPLACEMENT  OF  THE  SENSOR  BOARD
When the SENSOR board is defective, exchange the MECHANI-
CAL BLOCK (Z) ASSY 08 (Former type) or MECHANICAL 
BLOCK (11CA) ASSY (New type).
Note: As for the mechanism deck (MG-101CA-188) carried in this 
unit, component parts have been changed from the midway 
of production. When you perform repair exchange of the 
mechanism deck (MG-101CA-188), refer to “ABOUT THE 
MG-101CA-188 OF FORMER AND NEW” on page 6.
CAUTION
Use of controls or adjustments or performance of procedures 
other than those specifi ed herein may result in hazardous radia-
tion exposure.
If the optical pick-up block is defective, please replace the whole 
optical pick-up block.
Never turn the semi-fi xed resistor located at the side of optical 
pick-up block.
TEST  DISCS
Use following TEST DISC when this unit confi rms the operation 
and checks it.
Part No.
   
Description
3-702-101-01 
DISC (YEDS-18), TEST (for CD)
4-225-203-01 
DISC (PATD-012), TEST (for CD)
optical pick-up
semi-fixed resistor
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 fl ow) 
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.
Ver. 1.4
CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
4
EXTENSION  CABLE  AND  SERVICE  POSITION
When repairing or servicing this set, connect the jig (extension 
cable) as shown below.
•  Connect the MAIN board (CN700) and the SERVO board 
(CN401) with the jig cable.
Jig cable:
Part No. 
Description
A-1818-424-A EXTENSION CABLE (CD MECHA)
NOTE FOR REPLACEMENT OF THE USB CONNECTOR 
(CN902)  AND  THE  AUX  JACK (J901)
To replace the USB connector and the AUX jack requires align-
ment.
1.  Insert the USB connector and the AUX jack into the front pan-
el.
2.  Place the KEY board on the front panel and align the terminals 
of the USB connector and the AUX jack with the holes in the 
KEY board.
3.  Solder the seven terminals of the connector and three terminals 
of the jack.
SERVO board
(CN401)
MAIN board
(CN700)
extension cable (CD mecha)
KEY board
front panel
USB (socket) connector
AUX jack
CLEANING  THE  CONNECTORS
The unit may not function properly if the connectors 
between the unit and the front panel are not clean. In order 
to prevent this, detach the front panel and clean the 
connectors with a cotton swab. Do not apply too much force. 
Otherwise, the connectors may be damaged. 
Notes
t For safety, turn off the ignition before cleaning the connectors, 
  and remove the key from the ignition switch.
t Never touch the connectors directly with your fingers or with 
  any metal device.
Page of 66
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Sony CDX-GT40U / CDX-GT40UW / CDX-GT42UE / CDX-GT44U / CDX-GT45U / CDX-GT47UE Service Manual ▷ Download

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  • Here you can View online or download the Service Manual for the Sony CDX-GT40U / CDX-GT40UW / CDX-GT42UE / CDX-GT44U / CDX-GT45U / CDX-GT47UE in PDF for free, which will help you to disassemble, recover, fix and repair Sony CDX-GT40U / CDX-GT40UW / CDX-GT42UE / CDX-GT44U / CDX-GT45U / CDX-GT47UE Car Audio. Information contained in Sony CDX-GT40U / CDX-GT40UW / CDX-GT42UE / CDX-GT44U / CDX-GT45U / CDX-GT47UE Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.