Sony HCD-H51 Service Manual

HCD-H51/H51M
SERVICE MANUAL
HCD-H51 and HCD-H51M are the tuner,
deck, CD and amplifier section in FH-B510
and MHC-510 respectively.
HCD-HS51M destined for UK does not include
speaker system that is supplied separately.
Photo : HCD-H51
US Model
Canadian Model
UK Model
HCD-H51M
AEP Model
HCD~- H51/H51M
SPECIFICATIONS
AUDIO POWER
SPECIFICATIONS (For the
customers in the USA Model)
POWER OUTPUT AND
TOTAL HARMONIC
DISTORTION :
With 6 ohm loads, both
channels driven, from 60 Hz-
20 kHz; rated 20 watts per
channel minimum RMS
power, with no more than 1%
total harmonic distortion from
250 miliwatts to reted output.
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
East European model: 65.0-74.0 MHz
87.5- 1080 MHz
Other country model: 87.5-108.0 MHz
Antenna FM lead antenna
(for HCD-H51M)
Telescopic antenna
(for HCD-H51).
Antenna terminals 75 ohm unbalanced
intermediate frequency 10.7 MHz
AM tuner section
Tuning range
US and Canadian model
AM : §30-1,710 kHz
Italian model
AM : 622 ~ 1,611 kHz
MICROFILM
Model Name Using Similer Mechanism | HCD-H170/H170K/H700
cD
Section
CD Mechanism Name
CDM13B-58D4E
Base Unit Name
BU-5BD4E |
Deck Model Name Using Similar Mechanism] HST-H1750
Section | Tape Transport Mechanism Type TCM-210W2
UK, East European, AEP, Germany, AED
and CIS model
MW : 531-1,602 kHz
LW : 153-279 kHz
Antenna AM loop antenna
External antenna terminals
Intermediate frequency 450 kHz
Amplifier section
For UK, East European, AEP, Germany,
Italian, AED and CIS model:
Continuous RMS power output :
25+ 25 watts (6 ohms at 1 kHz, DIN)
30 +30 watts (6 ohms at 1 kHz, 5%
THD)
Music power output :
75+ 75 watts
(6 ohms at 1 kHz, 10% THD)
For US and Canadian model :
Continuous RMS power output :
30 +30 watts
(6 ohms at 1 kHz, 5% THD)
For Australian model :
Continuous RMS power output :
30 +30 watts
6 ohms at 1 kHz, 5% THD)
Peak music power output :
300 watts
Inputs
For HCD-H51 =PHONO (phono jack) :
sensitivity 5 mV,
impedance 47 kirohms
For HCD-H51M UK, AEP and AED model:
PHONO (phono jack) :
sensitivity 5 mV,
impedance 47 kilohms
Outputs
HEADPHONES (stereo minijack) :
accept headphones of 8 ohms or
more. :
SPEAKERS : accept impedence of 6 to
16 ohms.
Cassette deck section
Recording. system
4-track 2-channel stereo’
Frequency response
(DOLBY NR OFF)
60- 13,000 Hz (+3 db),
using TYPE |
cassette (Sony HF-S)
60-14,000 Hz (+3 dB),
using TYPE II
cassette (Sony UX-S )
Wow and flutter
0.1% WRMS +0.3% (DIN)
Compact disk player section
System Compact disk digital audio system
Laser ‘Semiconductor laser
Wavelength 780 - 790 nm
Note : AED : Denmark model
—Continued on next page—
COMPACT DISK DECK RECEIVER
SONY.

Sony HCD-H51 Specifications

General

Brand	Sony
Model	HCD-H51
Category	Portable Stereo System
Language	English

Summary

Specifications

Audio Power Specifications

Power output and total harmonic distortion details.

Tuner Section Specifications

FM/AM tuning range, intermediate frequency, and antenna details.

Amplifier Section Specifications

Continuous RMS power output and music power for different regions.

Cassette Deck Section Specifications

CD Player Section Specifications

General Information and Safety

Safety Labels and Warnings

Describes caution labels and critical component warnings.

Servicing Notes and Setup

Model Identification Details

Details on specification labels and model numbers.

Operating Voltage Check

Parts Identification

Front Panel and Tuner Section Parts

Identification of parts on the front panel and tuner section.

Amplifier and Cassette Deck Section Parts

Identification of parts in the amplifier and cassette deck sections.

CD Player Section and Remote Commander Parts

Disassembly Procedures

Case Assembly Disassembly

Steps for disassembling the main case.

Power Board Removal

Procedure for removing the power board.

Main Board Removal

Procedure for removing the main board.

CD Mechanism Block Removal

Procedure for removing the CD mechanism.

Deck Mechanism Block Removal

Procedure for removing the deck mechanism.

Display/SW/VR Board Removal

Mechanical Adjustments

Torque & Driving Force Measurement

Electrical Adjustments

Deck Section Servicing Notes

Notes, switch positions, and test tapes for deck adjustments.

Deck Torque and Level Adjustments

Procedures for adjusting deck torque and playback levels.

Tape Speed Adjustment Procedures

Steps for adjusting tape speed for Deck A.

Playback Level Adjustment Procedures

Steps for adjusting playback levels for Decks A and B.

Record Bias Adjustment (Deck B)

Procedure for adjusting record bias on Deck B.

FM Section Adjustments

Settings and calibration for the FM tuner section.

CD Section Checks

CD Section Checks and Adjustments

Diagrams and Schematics

Semiconductor Lead Layouts

Printed Wiring Boards - Main Section

BD Section Schematics

Main Section Schematics

Display Section Wiring Diagrams

Exploded Views

Case and Power Board Exploded View

Front Panel and Main Board Exploded View

Mechanism Section 1 Exploded View

Mechanism Section 2 Exploded View

CD Section 1 Exploded View

Electrical Parts List

BD Board Parts List

Comprehensive list of electrical components for the BD board.

Display, Power, SW Board Parts List

Display/Power/SW Board Components