Sony CMT-A70 Service Manual

SERVICE MANUAL
Ver. 1.2 2006.02
US and foreign patents licensed from Dolby Laboratories.
AUDIO POWER SPECIFICATIONS
(US model only)
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 6 Ω loads, both channels driven from 100 -
10,000 Hz; rated 55 W per channel-minimum
RMS power, with no more than 10 % total
harmonic distortion in AC operation.
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of about
200 mm from the objective lens surface on the optical
pick-up block with 7 mm aperture.)
Spindle speed
400 r/min (rpm) to 1 000 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20 000 Hz +0/–1 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM 87.5 - 108 MHz
AM
US, Canadian models: 530 - 1 710 kHz
Other models: 531 - 1 611 kHz (9 kHz step)
530 - 1 610 kHz (10 kHz step)
IF
FM: 10.7 MHz
AM: 450 kHz
Sony Corporation
9-879-211-03
Personal Audio Division
2006B05-1
Published by Sony Techno Create Corporation
© 2006.02
CMT-A50/A70
Photo: CMT-A50
Model Name Using Similar Mechanism
CD CD Mechanism Type
Section Optical Pick-up Block Name
Optical Pick-up Name
Tape deck Model Name Using Similar Mechanism
Section Tape Transport Mechanism Type

SPECIFICATIONS

Aerials
FM: Lead aerial
AM: Loop aerial
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 112 s (sec.) with Sony cassette C-60
Frequency response
TYPE I (normal): 50 - 15 000 Hz
General
Speaker
Tweeter: 4 cm dia., 6 Ω
Woofer: 13 cm dia., 6 Ω
Passive radiator: 10 cm dia. (CMT-A50 only)
Input
LINE IN jack (stereo minijack)
Minimum input level 430 mV
Outputs
Headphones jack (stereo minijack):
For 8 - 64 Ω impedance headphones
OPTICAL DIGITAL OUT (CD) (optical output
connector):
Wavelength: 630 - 690 nm
Maximum power output
CMT-A50: 20 W
CMT-A70: 60 W
Power requirements
For personal component system:
US, Canadian models: 120 V AC, 60 Hz
Korean model: 220 V AC, 60 Hz
Other models: 230 V AC, 50 Hz
PERSONAL COMPONENT SYSTEM
US Model
Canadian Model
Australian Model
AEP Model
UK Model
CMT-A50/A70
E Model
NEW
FLM-A50
KSM-213CCP or KSM-213RCP
KSS-213C or KSS-213R
NEW
CMAL1Z252A
For remote control:
3 V DC, 2 R03 (size AAA) batteries
Power consumption
CMT-A50: 50 W
CMT-A70: 100 W
Dimensions
Player:
Approx. 136 × 151.8 × 204 mm (w/h/d)
(incl. projecting parts)
Speaker:
CMT-A50: Approx. 128 × 287 × 215 mm (w/h/d)
(incl. projecting parts)
CMT-A70: Approx. 164 × 267 × 255 mm (w/h/d)
(incl. projecting parts)
Ma
CMT-A50:
Player: Approx. 1.6 kg
Left speaker: Approx. 4.3 kg
Right speaker: Approx. 2.2 kg
CMT-A70:
Player: Approx. 1.6 kg
Left speaker: Approx. 5.6 kg
Right speaker: Approx. 2.9 kg
Supplied accessories
Remote control (1)
FM lead aerial (1)
AM loop aerial (1)
CD-ROM (SonicStage) (1)
SonicStage Installation/Operating Guide (1)
Design and specifications are subject to change without
notice.
CMT-A70
CMT-A50