Sony HCD-EC70 Service Manual

SERVICE MANUAL

Ver. 1.1 2006.03
HCD-EC70 is the Amplifier, CD player, Tape
Deck and Tuner section in MHC-EC70.
Main unit
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
(The United States model only)
With 8 ohm loads, both channels driven, from 150 – 10,000 Hz; rated 80
watts per channel minimum RMS power, with no more than 10% total
harmonic distortion from 250 milliwatts to rated output.
Amplifier section
High frequency AMP:
Continuous RMS power output (reference): 80 + 80 W (8 ohms at
1 kHz, 10% THD)
Low frequency AMP:
Continuous RMS power output (reference): 160 W (4 ohms at
150 Hz, 10% THD)
Inputs
AUDIO IN (stereo mini jack): Sensitivity 800 mV, impedance
47 kilohms
Outputs
PHONES (stereo mini jack): Accepts headphones with an impedance
of 8 ohms or more
SPEAKER: Accepts impedance of 8 ohms
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Emission duration: continuous
Laser Output*: Less than 44.6 µW
* This output is the value measurement at a distance of 200mm from
the objective lens surface on the Optical Pick-up Block with 7mm
aperture.
Sony Corporation
9-887-133-02
Personal Audio Division
2006C16-1
Published by Sony Techno Create Corporation
© 2006.03
HCD-EC70
Model Name Using Similar Mechanism
CD
Base Unit Name
Section
Optical Pick-up Name
TAPE Model Name Using Similar Mechanism
Section Tape Transport Mechanism Type
SPECIFICATIONS
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
Tape deck section
Recording system: 4-track 2-channel, stereo
Tuner section
FM stereo, FM/AM superheterodyne tuner
Antenna:
FM lead antenna
AM loop antenna
FM tuner section:
Tuning range: 87.5 – 108.0 MHz (100 kHz step)
Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range: 530 – 1,710 kHz (with 10 kHz tuning interval)
Intermediate frequency: 450 kHz
General
Power requirementsl: AC 120 V, 60 Hz
Power consumption: 198 W
Dimensions (w/h/d): Approx. 200 × 306 × 395 mm
Mass: Approx. 6.4 kg
Design and specifications are subject to change without notice.
COMPACT DISC DECK RECEIVER
US Model
Canadian Model
NEW
BU-K6BD83S2-WOD
KSM-213DCP
NEW
—
531 – 1,710 kHz (with 9 kHz tuning interval)
0.5 W (in Power off)