Sony CDX-GT08 Service Manual ▷ View online
SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
CDX-GT08/CXS-GT08HP
FM/AM COMPACT DISC PLAYER
9-889-179-02
2008H04-1
©
2008.08
US Model
Canadian Model
Ver. 1.1 2008.08
• CXS-GT08HP is composed of CDX-GT08,
2 way spaker and 3 way speaker.
2 way spaker and 3 way speaker.
SPECIFICATIONS
CD player section
Signal-to-noise ratio
Signal-to-noise ratio
120 dB
Frequency response
10 – 20,000 Hz
Wow and fl utter
Below measurable limit
Tuner section
FM
Tuning range
FM
Tuning range
87.5 – 107.9 MHz
Antenna terminal
External antenna (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)
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
Tuning range
530 – 1,710 kHz
Antenna (aerial) terminal
External antenna (aerial) connector
Intermediate frequency
10.7 MHz/450 kHz
Sensitivity 30
μV
Power amplifi er section
Outputs
Outputs
Speaker outputs (sure seal connectors)
Speaker impedance
4 – 8 ohms
Maximum power output
45 W
× 4 (at 4 ohms)
General
Output
Output
Audio outputs terminal (sub/rear
switchable)
Power antenna relay control terminal
Pwer amplifi er control terminal
Inputs
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
Tone controls
Low: ±10 dB at 60 Hz
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz
Power requirements
12 V DC car battery (negative ground)
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
Parts for installation and connections (1 set)
Card remote commander: RM-X151
Connecting
cord
– Continued on next page –
Model Name Using Similar Mechanism
CDX-GT22W/GT220
CD Drive Mechanism Type
MG-101TC-188//C
Optical Pick-up Name
DAX-25A
• The tuner and CD sections have no adjustments.
CDX-GT08/CXS-GT08HP
2
SAFETY-RELATED COMPONET 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
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
6 × 9 Speaker (3-way Speaker)
Speaker Coaxial
Speaker Coaxial
3-way:
Woofer
16
× 24 cm
(6
3
/
8
× 9
1
/
2
in), cone type
Midrange 5.5 cm (2
1
/
4
in),
cone
type
Tweeter 1.4 cm (
9
/
16
in),
balanced dome type
Peak power
300 W
Rated power
60 W
Impedance 4
Ω
Sensitivity 93
dB/W/m
Frequency response
27 – 30,000 Hz
Mass
Approx. 1,150 g (2 lb 9 oz)
per
speaker
Supplied accessory
Parts for installation
6
1
/
2
Speaker (2-way Speaker)
Speaker Coaxial
2-way:
Woofer 16 cm (6
3
/
8
in),
HOP,
cone
type
Tweeter 4 cm (1
5
/
8
in),
Al, cone type
Peak power
190 W
Rated power
40 W
Impedance 4
Ω
Sensitivity 90
dB/W/m
Frequency response
35 – 22,000 Hz
Mass
Approx. 560 g (1 lb 4 oz) per
speaker
Supplied accessory
Parts for installation
Design and specifi cations are subject to change
without notice.
Dimensions
Dimensiones
Dimensiones
Unit: mm (in)
Unidad: mm
Unidad: mm
4.5
×
7.5 (
3
/
16
×
5
/
16
)
166 (6
5
/
8
)
117 (4
5
/
8
)
222 (8
3
/
4
)
ø
80 (3
1
/
4
)
16 (
21
/
32
)
75 (3)
194 (7
3
/
4
)
264 (10
1
/
2
)
35 (1
7
/
16
)
6
× 9 Speaker
Altavoz de 6
× 9
6
1
/
2
Speaker
Altavoz de 6
1
/
2
ø
125 (5)
ø
75 (3)
ø
158 (6
1
/
4
)
44
(1
3
/
4
)
8.9 (
3
/
8
)
5 (
7
/
32
)
ø 5 (
7
/
32
)
27 (1
1
/
8
)
ø 168 (6
3
/
4
)
ø 142 (5
5
/
8
)
153 (6
1
/
8
)
168 (6
5
/
8
)
237 (9
3
/
8
)
2.5 (
1
/
8
)
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.
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.
Ver. 1.1
CDX-GT08/CXS-GT08HP
3
Type of disc
Label on the disc
CD-DA
MP3
WMA
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
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
• 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.
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
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.
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.
also be added to ordinary solder.
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
TEST DISCS
Please use the following test discs for the check on the CD section.
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)
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostat-
ic 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.
ic 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.
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
SERVICE NOTES
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.
optical pick-up block.
Never turn the semi-fi xed resistor located at the side of optical
pick-up block.
optical pick-up
semi-fixed resistor
• CD Play back
You can play CD-DA (also containing CD TEXT) and CD-
R/CD-RW (MP3/WMA fi les).
R/CD-RW (MP3/WMA fi les).
CDX-GT08/CXS-GT08HP
4
1.
SERVICING NOTES
.............................................. 5
2. GENERAL
Location of Controls and Basic Operations .................... 6
Connections
....................................................................
7
3. DISASSEMBLY
3-1. Sub
Panel
(LCD)
Assy
.................................................... 9
3-2. CD Mechanism Block ..................................................... 9
3-3. Main
3-3. Main
Board
..................................................................... 10
3-4. Servo
Board
.................................................................... 10
3-5. Chassis
(T)
Sub
Assy
...................................................... 11
3-6. Roller Arm Assy .............................................................. 11
3-7. Chassis
3-7. Chassis
(OP)
Assy
........................................................... 12
3-8. Chucking
Arm
Sub
Assy
................................................. 12
3-9. Sled
Motor
Assy
.............................................................. 13
3-10. Optical Pick-Up Section ................................................. 14
3-11. Optical Pick-Up .............................................................. 14
3-11. Optical Pick-Up .............................................................. 14
4. DIAGNOSIS
FUNCTION ................................... 15
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
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 .................................................. 31
6-3. CD Mechanism Section .................................................. 31
7.
ELECTRICAL PARTS LIST .............................. 32
TABLE OF CONTENTS