Sony hcd h 51m

Page 1

HCD-H51/H51M

'- SERVICE MANUAL

US Model
Canadian Model
UK Model

HCD- H51M

AEP Model

HCD- H51/H51M

HCD-HSI and HCD-HSIM are the tuner,
deck, CD and amplifier section in FHBSIO
and MHC-Slo respectively.

HCD-HSIM destined for UK does not include
speaker system that is supplied separately.

Photo : HCD- H51

SPECIFICATIONS CD Model Name Using Similer Mechanism HCD-Hl70/H17OK/H700
h ,
AUDIO POWER Section CD Meclanism Name CDMISB 53045
SPECIFICATIONS (For the Base Uh" Name BU'58D4E
customers in the USA Model) Deck Model Name Using Similar Mechanism HST-H1750
POWER OUTPUT AND Section Tape Transport Mechanism Type TCM-ZlOWZ

TOTAL HARMONlC
DlSTORTlON :

With 6 ohm loads, both
channels driven, from 60 Hz-
20 kszrated 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
BIS-108.0 MHz
Other country model: BIS-108.0 MHz
Antenna FM lead antenna
(for HCD-H51M)
Telescopic antenna
(for HCD-HSI)
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz

AM tuner sectlon
Tuning range
US and Canadian model
AM : 5304.710 kHz
Italian model
AM : 522 - 1.611 kHz

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.

ltalian. AED and ClS model:

Continuous RMS power output:
25+25 watts (6 ohms at 1 kHz. DIN)
30+30 watt: (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 HMS power output:
80 + 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. AEPand AED model:
PHONO (phone jack) :
sensitivity 5 mV,
impedance 47 kilohms
Outputs
HEADPHONES (stereo miniiack) :
accept headphones of 8 ohms or
more.
SPEAKERS:accept impedance of 6 to
16 ohms.

Cassette deck section
Recording system
4-traok 2-channel stereo
Frequency response
(DOLBY NR OFF)
60-13000 Hz (13 db).
using TYPE 1
cassette (Sony HF-S)
60-14000 Hz (:3 dB).
using TYPE ll
cassette (Sony UX-S )
Wow and flutter
0:156 WRMS 10.3% (DIN)

Compact dlsk player section

System Compact disk digital audio system
Laser Semiconductor laser
Wavelength 780 - 790 nm

Note : AED : Denmark model
-Cr.>ntinued on next page--

COMPACT DISK DECK RECEIVER

ONE.

Page 2

HCD- H51/H51M

6~ 4. SCHEMATIC DIAGRAM - BD SECTION -- 0 See page 41 for IC Block Diagrams.
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eVoltage and waveforms are do with respect to ground under
no-signaE conditions.
no mark : CD STOP

0 Voltages are taken with a VOM (input impedance 10 M9).
Voltage variations may be noted due to normal production
tolemnces.

e Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances. O - - - - - - - -

0 circled numbers refer to waveforms 16 _

9 Signal path,

W : CD

ADJ.

SP
mum
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