Sony HCD-EH10 Service Manual

SERVICE MANUAL
COMPACT DISC DECK RECEIVER
HCD-EH10
Ver. 1.4 2006.03
SPECIFICATIONS
9-879-855-05
2006C05-1
© 2006.03
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
• HCD-EH10 is the amplifier, CD player, tape deck and
tuner section in CMT-EH10.
Model Name Using Similar Mechanism NEW
CD Section Base Unit Name BU-K8BD83S-WOD
Optical Pick-up Name KSM-213CDP
TAPE Section
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type H-21SB
Main unit
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
(The United States model only)
With 4 ohm loads, both channels driven, from 100 – 20,000 Hz; rated 4 watts per channel
minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to
rated output.
Amplifier section
North-American model:
Continuous RMS power output (reference): 5 + 5 W (4 ohms at 1 kHz, 10% THD)
European model:
DIN power output (rated): 4 + 4 W (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 5 + 5 W (4 ohms at 1 kHz, 10% THD)
Music power output (reference): 7 + 7 W
The following are measured at AC 240 V, 50/60 Hz (Australian model), AC 220 V, 60 Hz (Korean
model), AC 120 V, 50/60 Hz (Taiwanese model), AC 120 or 240 V, 50/60 Hz (other models)
DIN power output (rated): 4 + 4 W (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 5 + 5 W (4 ohms at 1 kHz, 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 4 ohms
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Emission duration: continuous
Laser Output*: Less than 44.6µ W
*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.
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
North American model: 87.5 – 108.0 MHz (100 kHz step)
Other models: 87.5 – 108.0 MHz (50 kHz step)
Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range
North American models: 530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,710 kHz (with 9 kHz tuning interval)
European model: 531 – 1,602 kHz (with 9 kHz tuning interval)
Other models: 530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,602 kHz (with 9 kHz tuning interval)
Intermediate frequency: 450 kHz
General
Power requirements
North American model: AC 120 V, 60 Hz
European model: AC 230 V, 50/60 Hz
Australian model: AC 230 – 240 V, 50/60 Hz
Korean model: AC 220 V, 60 Hz
Taiwanese model: AC 120 V, 50/60 Hz
Other models: AC 110 – 120 or 220 – 240 V, 50/60 Hz
Adjustable with voltage selector
Power consumption:
North American model: 23 W
European model: 22 W
1.0 W (in Power off)
Other models: 22 W
Dimensions (w/h/d) (excl. speakers): Approx. 158 × 241.5 × 233 mm
Mass (excl. speakers):
Approx. 2.1 kg
Supplied accessories: Remote Commander (1)/FM/AM antenna (1)
Design and specifications are subject to change without notice.

Sony HCD-EH10 Specifications

General

CD Player	Yes
Tuner	FM/AM
Bluetooth	No
USB Port	No
CD Player Type	Single Disc
Cassette Deck	Yes
Audio Channels	2.0
Remote Control	Yes
Type	Mini System
Functions	CD, Cassette
Speakers	2

Summary

Specifications Overview

Component Specifications

Details for CD, Tape, Tuner sections including model, mechanism, and tuning ranges.

General Unit Specifications

Information on power requirements, consumption, dimensions, mass, and supplied accessories.

Servicing Notes and Precautions

Component Handling Precautions

Guidelines for safely handling optical pick-ups, base units, and laser diodes.

Laser Diode Checks

Procedures for checking laser diode emission and focus search operation.

Disassembly Procedures

Disassembly Flow and Procedures

Outlines the sequence for disassembling the unit into its main sections, starting with the rear cabinet.

Front Cabinet, Main Board, and Mechanical Deck Removal

Steps for removing front/top cabinets, main board, and mechanical deck, detailing connections.

Base Unit and Optical Pick-up Removal

Instructions for removing the base unit section and the optical pick-up block.

Test Modes

System Reset and Special Modes

Covers Cold Reset, Panel Test, CD Power Manage, Repeat Off, and Tuner Step Change-over modes.

Mechanical Adjustments

Torque and Tape Tension Measurements

Specifies torque values for tape mechanisms and tape tension measurement procedures.

Electrical Adjustments

Tuner Section Electrical Adjustments

Details AM/FM voltage, tracking, and detector adjustments for the tuner section.

FM Detector Adjustment Details

Specific instructions for adjusting the FM detector for optimal performance.

Deck Section Adjustments

Head Azimuth Adjustment

Procedure for adjusting the record/playback head azimuth using test tapes and measuring instruments.

CD Section Tests

Focus Bias Check Procedure

Method for checking focus bias on the CD board using an oscilloscope for optimal eye pattern.

Diagrams

System Block Diagrams

Visual representation of CD Servo, Tuner, and Main sections' architecture and signal flow.

Exploded Views

Unit Assembly Views

Exploded views of the overall unit, front cabinet, top cabinet, and base unit, detailing part numbers.

Electrical Parts List

CD Board, Main Board, and AC-SW Board Parts

Comprehensive lists of capacitors, ICs, resistors, connectors, and other components for major boards.