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AEP Model

UK Model

2007C04-1
© 2007.03

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 – 108 MHz

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

MW/LW
Tuning range

MW: 531 – 1,602 kHz
LW: 153 – 279 kHz

Antenna terminal

External antenna connector

Intermediate frequency 10.7 MHz/450 kHz
Sensitivity

MW: 30 

µV, LW: 40 µV

USB player section
Interface

USB (Full-speed)

Maximum current

500 mA

Power amplifier section
Outputs

Speaker outputs (sure seal connectors)

Speaker impedance

4 – 8 ohms

Maximum power output

50 W 

× 4 (at 4 ohms)

• The tuner and CD sections have no adjustments.

Model Name Using Similar Mechanism

NEW

CD Drive Mechanism Type

MG-101U-188//Q

Optical Pick-up Name

DAX-25A

– Continued on next page –

(Photo: CDX-GT410U)

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.

General
Outputs

Audio outputs terminal (sub/rear switchable)
Power antenna relay control terminal
Power amplifier control terminal

Inputs

Telephone ATT control terminal
BUS control input terminal
BUS audio input terminal
Antenna input terminal
AUX input jack (stereo mini jack)

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 × 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

Card remote commander: RM-X151
Parts for installation and connections (1 set)
USB cap

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

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.

SERVO BOARD
CN2

MAIN BOARD
CN350

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 (CN350) and the SERVO board (CN2)

with the extension cable (Part No. J-2502-076-1).

This label is located on the bottom of the chassis.

This compact disc player is classified as a CLASS 1 LASER
product. The CLASS 1 LASER PRODUCT label is located on the
exterior.

You can play CD-DA (also containing CD TEXT*), CD-R/CD-
RW (MP3/WMA/AAC files also containing Multi Session) and
ATRAC CD (ATRAC3 and ATRAC3plus format).

Type of discs

Label on the disc

CD-DA

MP3

WMA

AAC

ATRAC CD

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

disc, artist and track name.

4

Location of Controls ........................................................

5

Connections .....................................................................

6

2-1.

Sub Panel (FL) Assy ........................................................

9

2-2.

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

9

2-3.

Main Board ...................................................................... 10

2-4.

Servo Board ..................................................................... 10

2-5.

Chassis (T) Sub Assy ....................................................... 11

2-6.

Roller Arm Assy .............................................................. 11

2-7.

Chassis (OP) Assy ........................................................... 12

........................................ 13

4-1.

Block Diagram –Main Section– ...................................... 17

4-2.

Block Diagram –Display Section– .................................. 18

4-3.

Printed Wiring Board –Main Section– ............................ 20

4-4.

Schematic Diagram –Main Section (1/3)– ...................... 21

4-5.

Schematic Diagram –Main Section (2/3)– ...................... 22

4-6.

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

4-7.

Printed Wiring Board –Key Section– .............................. 24

4-8.

Schematic Diagram –Key Section– ................................. 25

5-1.

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

5-2.

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

5-3.

CD Mechanism Section (MG-101U-188//Q) .................. 33

.................................. 34

NOTE FOR REPLACEMENT OF THE USB CONNECTOR
(CN902)
To replace the USB connector requires alignment.
1. Insert the USB connector into the front panel.
2. Place the KEY board on the front panel and align the terminals

of the USB connector with the holes in the KEY board.

3. Solder the four terminals of the connector.

KEY board

front panel

USB (socket) connector

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 THE 24-PIN CONNECTOR (CN901)
Do not use alcohol to clean the 24-pin connector (CN901) connecting
the front panel with the main body.
Do not touch the connector directly with your bare hand. Poor contact
may be caused.