CDX-M620/M670

SERVICE MANUAL

Ver 1.0 2001. 03

• The tuner and CD sections have no adjustments.

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS (US MODEL)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION

23.2watts per channel minimum continuous average power into 4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than 5% total harmonic distortion.

US Model

CDX-M620/M670

AEP Model

UK Model

E Model

CDX-M670

 

Model Name Using Similar Mechanism

CDX-M700R/M750

 

 

 

 

CD Drive Mechanism Type

MG-383Z-121//K

 

 

 

 

Optical Pick-up Name

KSS-720A

 

 

 

MW/LW (AEP, UK, E model)

 

Tuning range

MW: 531 – 1,602 kHz

 

 

 

LW: 153 – 279 kHz

 

Aerial terminal

External aerial connector

 

Intermediate frequency

10.7 MHz/450 kHz

 

Sensitivity

MW: 30 µV

 

 

 

LW: 40 µV

 

CD player section

Signal-to-noise ratio

90 dB

Frequency response

10 – 20,000 Hz

Wow and flutter

Below measurable limit

Laser Diode Properties (US model)

Material

GaAlAs

Wavelength

780 nm

Emission Duration

Continuous

Laser output power

Less than 44.6 µW*

*This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block.

Tuner section

FM

 

 

Tuning range

87.5

– 107.9 MHz (US model)

 

87.5

– 108.0 MHz (AEP, UK, E model)

Antenna terminal

External antenna connector

Intermediate frequency

10.7

MHz/450 kHz

Usable sensitivity

8 dBf

Selectivity

75 dB at 400 kHz

Signal-to-noise ratio

66 dB (stereo),

 

72 dB (mono)

Harmonic distortion at 1 kHz

 

 

0.6% (stereo),

 

0.3% (mono)

Separation

35 dB at 1 kHz

Frequency response

30 – 15,000 Hz

AM (US model)

 

 

Tuning range

530 – 1,710 kHz

Antenna terminal

External antenna connector

Intermediate frequency

10.7

MHz/450 kHz

Sensitivity

30 µV

9-873-505-11Sony Corporation

2001C0400-1Audio Entertainment Group

© 2001. 3

General Engineering Dept.

Power amplifier section

Outputs

Speaker outputs (sure seal connectors)

Speaker impedance

4 – 8 ohms

Maximum power output 52 W 4 (at 4 ohms)

General

Outputs

Audio outputs (front/rear)

 

Subwoofer output (mono)

 

Power antenna relay

 

control lead (US model)

 

Power aerial relay

 

control lead (AEP, UK, E model)

 

Power amplifier control

 

lead

– Continued on next page –

FM/AM COMPACT DISC PLAYER

CDX-M620/M670

FM/MW/LW COMPACT DISC PLAYER

CDX-M670

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Sony Ericsson service manual CDX-M620/M670, Specifications