Sony HCD-H331 User Manual

HCD-H331/H331D
MINI Hi-Fi COMPONENT SYSTEM
US Model
HCD-H331/H331D
Canadian Model
E Model
Australian Model
HCD-H331
r
HCD-H331/H331D is the tuner, deck,
CD and amplifier section in MHC-331,
MHC-D2, MHC-G33.
Photo : HCD-H331
Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks of
Dolby Laboratories Licensing Corporation.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION :
with 6 ohm loads, both channels driven,
from 40-20kHz ; rated 100 watts per
channel minimum RMS power, with no
more then 0.9 % total harmonic distortion
from 250 milliwatts to rated output.
CD player section
System Compact disc and digital audio
system
Laser Semiconductor laser
Laser output Max 44.6µW*
*This output is the value measured at
a distance of 200 mm from the ob-
jective lens surface on the Optical
Pick-up Block with 7 mm aperture.
Wavelength 780–790 nm
Frequency response
2Hz – 20kHz (± 0.5 dB)
Signal-to-noise ratio
More than 90 dB
Dynamic range
More than 90 dB
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range US, Canadian model :
87.5 - 108MHz (100kHz step)
EXCEPT US, Canadian model :
87.5 - 108MHz (50kHz step)
Antenna FM lead antenna
Antenna terminals
75 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
US, Canadian model :
531-1,710kHz (with the tuning
interval set at 9 kHz)
530-1,710kHz (with the tuning
interval set at 10 kHz)
E, Argentine, Australian, Mexican
model :
531-1,602kHz (with the tuning
interval set at 9 kHz)
530-1,710kHz (with the tuning
interval set at 10 kHz)
Antenna AM loop antenna
External antenna terminals
Intermediate frequency
450kHz
Amplifier section
US, Canadian model :
FTC 100W+100W (8ohm, 40-20kHz, 0.9% THD)
Continuous RMS power output
120W + 120W (8 ohm, 1kHz, 5% THD)
EXCEPT US, Canadian model :
Peak music power output
400W
Continuous RMS power output
20W + 20W (6 ohm, 1kHz, 10% THD)
Inputs
VIDEO IN (phono jacks) :
voltage 450 mV
impedance 47 kilohm
Outputs
PHONES (stereo phono jack) :
accepts headphones of 8 ohm or more
SPEAKER :
accepts impedance of 6 to 16 ohm
SUPER WOOFER :
voltage 1V, impedance 1 kilohms
(HCD-H331 only)
–Continued on page 2–
SPECIFICATIONS
CD
Section
Model Name Using Similar Mechanism HCD-H881/H881D
CD Mechanism Type CDM38-5BD19
Base Unit Name BU-5BD19
Tape deck
Section
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type TCM-YSW47C24
SERVICE MANUAL
MICROFILM

Sony HCD-H331 Specifications

General

Brand	Sony
Model	HCD-H331
Category	Stereo System
Language	English

Summary

Safety Check-out Procedures

AC Leakage Test

Procedure for testing AC leakage from exposed metal parts.

Servicing Notes

Optical Pick-up Block Handling

Precautions for handling the optical pick-up block and base unit.

Laser Diode Emission Check

Disassembly Procedure

Front Panel Removal

Cassette Mechanism Deck Block Removal

Mechanical Adjustments

Torque Measurement Procedures

Methods and specifications for measuring torque.

Tape Tension Measurement

Electrical Adjustments

Deck Section Adjustment Procedures

Covers key adjustments for the deck section, including levels and azimuth.

Tape Speed Adjustment

Procedure to adjust tape speed for optimal playback.

Playback Level Adjustment

Method for adjusting playback signal levels for accuracy.

Record Bias Adjustment

Process for adjusting the bias level during recording.

Record Level Adjustment

Procedure for setting the record signal levels.

CD Section Adjustments

Focus Bias Adjustment

Adjustment for optical block replacement to ensure focus.

RF Level Check

E-F Balance Check

Block Diagrams

CD Section Block Diagram

Diagram showing the optical pick-up block components and connections.

Main Section Block Diagram

Overall block diagram of the main section of the unit.

Schematic Diagrams

Main Section Schematic (1/2)

Detailed schematic diagram of the main section.

Panel Section Schematic

Schematic diagram for the panel section.

BD Section Schematic

Schematic diagram for the BD section.

IC Block Diagrams

Main Section IC Block Diagrams

BD Section IC Block Diagrams

Exploded Views

Chassis Section Exploded View

Exploded view of the chassis and its components.

Front Panel Section Exploded View

Exploded view of the front panel assembly.

TC Mechanism Section 1 Exploded View

Exploded view of the tape mechanism section 1.

TC Mechanism Section 2 Exploded View

TC Mechanism Section 3 Exploded View

Disc Table Assy Section Exploded View

CDM Chassis Section Exploded View

Base Unit Section Exploded View