CDX-GT17, CDX-GT27 — Sony Car Audio Service Manual (repair manual)

Model
CDX-GT17 CDX-GT27
Pages
38
Size
3.57 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-gt17-cdx-gt27.pdf
Date

View Sony CDX-GT17 / CDX-GT27 Service Manual online

SERVICE MANUAL
Sony Corporation
eVehicle Division
Published by Sony Techno Create Corporation
Chinese Model
9-887-880-01
2007J04-1
© 2007. 10
Ver. 1.0  2007. 10
SPECIFICATIONS
CD player section
Frequency response
20 Hz – 20,000 Hz (±2 dB)
Tuner section
FM
Tuning range
87.5 MHz – 108.0 MHz (at 50 kHz step)
87.5 MHz – 107.9 MHz (at 200 kHz step)
FM tuning interval
50 kHz/200 kHz switchable
Antenna (aerial) terminal
External antenna (aerial) connector
Intermediate frequency 10.7 MHz/450 kHz
MW
Tuning range
531 kHz – 1,602 kHz (at 9 kHz step)
530 kHz – 1,710 kHz (at 10 kHz step)
MW tuning interval
9 kHz/10 kHz switchable
Antenna (aerial) terminal
External antenna (aerial) connector
Intermediate frequency 10.7 MHz/450 kHz
SW
Tuning range
SW1: 2,940 kHz – 7,735 kHz
SW2: 9,500 kHz – 18,135 kHz
(except for 10,140 kHz – 11,575 kHz)
Antenna (aerial) terminal
External antenna (aerial) connector
Intermediate frequency 10.7 MHz/450 kHz
Power amplifier section
Outputs
Speaker outputs (sure seal connectors)
Speaker impedance
4 ohms – 8 ohms
Maximum power output
50 W per channel (1 kHz, 16 V, 4 ohms)
• The tuner and CD sections have no adjustments.
Model Name Using Similar Mechanism
CDX-GT370/GT370S
CD Drive Mechanism Type
MG-101TC-188//C
Optical Pick-up Name
DAX-25A
– Continued on next page –
(Photo: CDX-GT17)
CDX-GT17/GT27
FM/MW/SW COMPACT DISC PLAYER
2
CDX-GT17/GT27
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.
SERVICE NOTES
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
General
Output
Audio outputs terminal
(sub/rear switchable)
Power antenna (aerial) relay control terminal
Power amplifier control terminal
Inputs
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
Power requirements
12 V DC car battery (negative ground (earth))
Power supply voltage
11 V – 16 V
Dimensions
Approx. 178 mm 
×
 50 mm 
×
 179 mm
(7
 1/8
 in. 
×
 2 in. 
×
 7
 1/8
 in.) (w/h/d)
Mounting dimensions
Approx. 182 mm 
×
 53 mm 
×
 162 mm
(7
 1/4
 in. 
×
 2
 1/8
 in. 
×
 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
(CDX-GT27 only)
MPEG Layer-3 audio coding technology and
patents licensed from Fraunhofer IIS and Thomson.
This product is protected by certain intellectual
property rights of Microsoft Corporation. Use or
distribution of such technology outside of this
product is prohibited without a license from
Microsoft or an authorized Microsoft subsidiary.
Design and specifications are subject to change without
notice.
optical pick-up
semi-fixed resistor
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
Please use the following test discs for the check on the CD section.
YDES-18 (Part No. 3-702-101-01)
PATD-012 (Part No. 4-225-203-01)
3
CDX-GT17/GT27
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.
• CD Playback
You can play CD-DA (also containing CD TEXT) and CD-R/
CD-RW (MP3/WMA files*).
Type of discs
Label on the disc
CD-DA
MP3
*
WMA
*
* CDX-GT27 only
TABLE OF CONTENTS
1.
SERVICE NOTE
........................................................
4
2.
GENERAL
Location of Controls ........................................................
5
Connections .....................................................................
5
3.
DISASSEMBLY
3-1.
Sub Panel Assy ................................................................
8
3-2.
CD Mechanism Block .....................................................
8
3-3.
Main Board ......................................................................
9
3-4.
Servo Board .....................................................................
9
3-5.
Chassis (T) Sub Assy ....................................................... 10
3-6.
Roller Arm Assy .............................................................. 10
3-7.
Chassis (OP) Assy ........................................................... 11
3-8.
Chucking Arm Sub Assy ................................................. 11
3-9.
Sled Motor Assy .............................................................. 12
3-10. Optical Pick-up Section ................................................... 13
3-11. Optical Pick-up ................................................................ 13
4.
DIAGNOSIS FUNCTION
........................................ 14
5.
DIAGRAMS
5-1.
Block Diagram –Main Section– ...................................... 17
5-2.
Block Diagram –Display Section– .................................. 18
5-3.
Printed Wiring Board –Main Section– ............................ 19
5-4.
Schematic Diagram –Main Section (1/4)– ...................... 20
5-5.
Schematic Diagram –Main Section (2/4)– ...................... 21
5-6.
Schematic Diagram –Main Section (3/4)– ...................... 22
5-7.
Schematic Diagram –Main Section (4/4)– ...................... 23
5-8.
Printed Wiring Board –Key Section– .............................. 24
5-9.
Schematic Diagram –Key Section– ................................. 25
6.
EXPLODED VIEWS
6-1.
Main Section .................................................................... 29
6-2.
Front Panel Section ......................................................... 30
6-3.
CD Mechanism Section (MG-101TC-188//C) ................ 31
7.
ELECTRICAL PARTS LIST
.................................. 32
This compact disc player is classified as a CLASS 1 LASER
product. The CLASS 1 LASER PRODUCT label is located on the
exterior.
4
CDX-GT17/GT27
SECTION 1
SERVICE NOTE
SERVO BOARD
CN2
MAIN BOARD
CNP301
J-2502-076-1
EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.
• Connect the MAIN board (CNP301) and the SERVO board (CN2)
with the extension cable (Part No. J-2502-076-1).
NOTE FOR REPLACEMENT OF THE SERVO BOARD
When repairing, the complete SERVO board (A-1201-631-A) should
be replaced since any parts in the SERVO board cannot be repaired.
NOTE FOR REPLACEMENT OF THE AUX JACK (J901)
To replace the AUX jack requires alignment.
1. Insert the AUX jack into the KEY board.
2. Place the KEY board on the front panel.
3. Solder the three terminals of the jack.
KEY board
front panel
AUX jack
Page of 38
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Here you can view online or download Sony CDX-GT17 / CDX-GT27 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony CDX-GT17 / CDX-GT27 Car Audio. Information contained in Sony CDX-GT17 / CDX-GT27 service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).