Sony HCD-D670AV - Compact Disk Deck Receiver User Manual

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SERVICE MANUAL
MICROFILM
COMPACT DISC DECK RECEIVER
US Model
Canadian Model
HCD-D670AV
AEP Model
UK Model
E Model
Australian Model
PX Model
HCD-N555AV
Photo: HCD-N555AV
Model Name Using Similar Mechanism NEW
CD Mechanism type CDM37-5BD19
Base Unit Type BU-5BD19
Optical Pick-up type KSS-213BA/S-N
Model Name Using Similar Mechanism HCD-N350
Tape Transport Mechanism Type TCM-220WR2E
HCD-D670AV/N555AV
TAPE
DECK
SECTION
* Manufactured under license from Dolby Laboratories
Licensing Corporation.
DOLBY, the double-D symbol a and “PRO LOGIC”
are trademarks of Dolby Laboratories Licensing
Corporation.
* 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.
SPECIFICATIONS
Antenna FM wire antenna
Aerial terminals 75 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
US, Canadian models:
AM: 530-1,710 kHz (with the tuning interval set at 10 kHz)
531-1,710 kHz (with the tuning interval se at 9 kHz)
German and Italian models:
AM: 531-1,602 kHz
AEP, UK models:
MW: 531-1,602 kHz
LW: 153-279 kHz (with the tuning inteval set at 3 kHz)
Other models:
AM: 531-1,602 kHz (with the AM tuning interval set at 9 kHz)
530-1,710 kHz (with the AM tuning interval set at 10 kHz)
Antenna AM loop Antenna
External Antenna
terminals
Intermediate frequency
450 kHz
AUDIO POWER SPECIFICATIONS (US model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 6 ohm
loads, both channels driven, from 70-20,000 Hz; rated 50 watts per channel
minimum RMS power, with no more than 0.9 % total harmonic distortion
from 250 milliwatts to rated output (FRONT SPEAKER).
CD player section
System compact disc
digital audio system
Laser Semiconductor laser
(λ=780nm)
Emission duration:
continuous
laser output Max 44.6 µW*
* This output is the value measured at a distance of 200 mm from the objuctive
lens surface on the Optical Pick-up Block with 7 mm aperture.
Frequency response 2 Hz-20 kHz (± 0.5 dB)
wavelength 780-790 nm
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
87.5-108.0 MHz
(100 kHz step for US, Canadian models)
(50 kHz step for except US, Canadian models)
CD
SECTION
HCD-D670AV, HCD-N555AV are the tuner,
deck, CD and amplifier section in LBT-D670AV,
LBT-N555AV.
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Sony HCD-D670AV - Compact Disk Deck Receiver Specifications

General

CD Playback	Yes
Brand	Sony
Model	HCD-D670AV
USB Port	No
Bluetooth	No

Summary

Service Manual

Specifications Overview

Details technical specifications for audio power, CD, tuner, and more.

Specifications

Amplifier Section Specifications

Details power output, sensitivity, and impedance for the amplifier section.

Model Identification

Chip Component Replacement Notes

Provides important notes for replacing chip components.

Flexible Circuit Board Repairing

Safety-Related Component Warning

Warns about critical components identified by marks for safe operation.

Safety Check-Out Procedures

AC Leakage Check

Details the procedure for checking AC leakage from exposed metal parts.

Optical Pick-Up Block Servicing Note

Provides notes on handling the optical pick-up block.

Laser Diode Emission Check Note

Gives instructions for checking laser diode emission safely.

Disassembly Procedures

Front Panel and Main Board Disassembly

Step-by-step guide to disassembling the front panel and main board.

TC Mechanism Deck Disassembly

Instructions for disassembling the TC mechanism deck.

CD Mechanism Deck Disassembly

Steps for disassembling the CD mechanism deck.

BU Bracket Assy Disassembly

Disc Table Disassembly

Mechanical Adjustments

Mechanical Adjustments Precautions

Important precautions before performing mechanical adjustments.

Electrical Adjustments

Deck Section Electrical Adjustments

Procedures for electrical adjustments in the deck section.

Record/Playback Head Azimuth Adjustment

Steps to adjust the azimuth of record/playback heads.

Tape Speed Adjustment (Deck A)

Procedure for adjusting tape speed on Deck A.

Playback Level Adjustment

Steps to adjust playback levels for both decks.

Record Bias Current Adjustment (Deck B)

Procedure for adjusting record bias current on Deck B.

Record Level Adjustment (Deck B)

Steps to adjust record level on Deck B.

Tuner Section Adjustments

AM Tuned Level Adjustment

Procedure for adjusting AM tuned level.

FM Tuned Level Adjustment

Procedure for adjusting FM tuned level.

CD Section Adjustments

Focus Bias Adjustment

Steps to adjust focus bias.

S Curve Check

Procedure for checking the S-curve.

RF Level Check

Procedure for checking RF signal level.

E-F Balance Check

Procedure for checking E-F balance.

Focus/Tracking Gain Adjustment

Diagrams and Schematics

CD Section Schematic Diagram

Schematic diagram for the CD section.

Diagrams and Printed Wiring Boards

Tuner Section Schematic Diagram (US/CDN/E/AUS/MX/PX/AR)

Schematic diagram for tuner section of specific models.

Tuner Section Printed Wiring Board (US/CDN/E/AUS/MX/PX/AR)

Tuner Section Schematic Diagram (AEP/UK/G/IT)

Schematic diagram for tuner section of AEP/UK/G/IT models.

Tuner Section Printed Wiring Board (AEP/UK/G/IT)

CD Panel Section Schematic Diagram

Schematic diagram for the CD panel section.

CD Panel Section Printed Wiring Board

CD Section Printed Wiring Board

Deck Section Printed Wiring Board

Deck Section Schematic Diagram

Schematic diagram for the deck section.

Main Section Printed Wiring Board

Main Section Schematic Diagram

Schematic diagram for the main section.

Panel Section Schematic Diagram

Schematic diagram for the panel section.

Panel Section Printed Wiring Board

Power Section Printed Wiring Board

Power Section Schematic Diagram

Schematic diagram for the power section.

CD Motor Section Schematic Diagram

Schematic diagram for the CD motor section.

CD Motor Section Printed Wiring Board

Electrical Parts List

BD Board Parts List

Power Amplifier Section Parts List

Parts list for the power amplifier section.

Power Amplifier and S. Woofer Parts List

Parts list for the power amplifier and S. Woofer.