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2

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.

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.

Power amplifier section
Outputs

Speaker outputs (sure seal connectors)

Speaker impedance

4 – 8 ohms

Maximum power output

45 W 

× 4 (at 4 ohms) (CDX-GT110/GT160/

GT160S)
50 W 

× 4 (at 4 ohms) (CDX-GT11W)

General
Output

Power antenna (aerial) relay control terminal

Inputs

Antenna (aerial) input terminal
AUX input jack (stereo mini jack)

Tone controls

Low: 

±10 dB at 100 Hz

High: 

±10 dB at 10 kHz

Loudness

+9 dB at 100 Hz
+5 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)

optical pick-up

semi-fixed resistor

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.

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

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.)

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.

You can play CD-DA (also containing CD TEXT*) and CD-R/
CD-RW for audio use.

* A CD TEXT disc is a CD-DA that includes information such as disc,

artist and track name.

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).

4

Location of Controls (CDX-GT11W) .............................

5

Connections (CDX-GT11W) ..........................................

5

Location of Controls (CDX-GT110) ...............................

7

Connections (CDX-GT110) ............................................

7

Location of Controls (CDX-GT160/GT160S) ................

9

Connections (CDX-GT160/GT160S) ..............................

9

2-1.

Sub Panel (LCD) Assy .................................................... 12

2-2.

CD Mechanism Block ..................................................... 12

2-3.

Main Board ...................................................................... 13

2-4.

Servo Board ..................................................................... 13

2-5.

Chassis (T) Sub Assy ....................................................... 14

2-6.

Roller Arm Assy .............................................................. 14

2-7.

Chassis (OP) Assy ........................................................... 15

........................................ 16

4-1.

Block Diagram –Main Section– ...................................... 19

4-2.

Block Diagram –Display Section– .................................. 20

4-3.

Printed Wiring Board –Main Section– ............................ 21

4-4.

Schematic Diagram –Main Section (1/3)– ...................... 22

4-5.

Schematic Diagram –Main Section (2/3)– ...................... 23

4-6.

Schematic Diagram –Main Section (3/3)– ...................... 24

4-7.

Printed Wiring Board –Key Section– .............................. 25

4-8.

Schematic Diagram –Key Section– ................................. 26

5-1.

Main Section .................................................................... 31

5-2.

Front Panel Section ......................................................... 32

5-3.

CD Mechanism Section ................................................... 33

.................................. 34

NOTE FOR REPLACEMENT OF THE SERVO BOARD
When repairing, the complete SERVO board (A-1177-201-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

5

Refer to the pages listed for details.

A OFF button

To power off; stop the source.

B EQ (equalizer) button  8

To select an equalizer type (XPLOD, 
NATURAL, HARD, UPBEAT, VOCAL, 
CUSTOM or OFF).

C Volume control dial/select button  8

To adjust volume (rotate); select setup items 
(press and rotate).

D SOURCE button

To power on; change the source (Radio/CD/
AUX).

E Disc slot

To insert the disc (label side up). Playback 
starts automatically.

F Display window

G AUX input jack  9

To connect a portable audio device.

H Z (eject) button

To eject the disc.

I

 (front panel release) button  4

J DSPL (display)/DIM (dimmer) button

To change display items (press); change the 
display brightness (press and hold). 

K 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).

L MODE button  7

To select the radio band (FM/AM).

M Number buttons

CD:
(3): REP

To play the current track repeatedly.

(4): SHUF

To play the tracks in random order.

(6): PAUSE

To pause playback. To cancel, press 
again.

Radio:
To receive stored stations (press); store 
stations (press and hold).

1

qa qs

q;

9

2

qd

4

5

8

6

7

3

CDX-GT11W

This section is extracted
from instruction manual.