Sony HCD-GR3 User Manual

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HCD-GR3/RX30
SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK Model
HCD-RX30
E Model
Australian Model
HCD-GR3
COMPACT DISC DECK RECEIVER
MICROFILM
— Continued on next page —
Model Name Using Similar Mechanism HCD-H991AV
CD Mechanism Type CDM38-5BD19FK
Base Unit Type BU-5BD19
Optical Pick-up Type KSS-213B/K-N
Model Name Using Similar Mechanism HCD-D270/G3100/N255
Tape Transport Mechanism Type TCM-YSW47C24
CD
SECTION
TAPE
DECK
SECTION
SPECIFICATIONS
AEP, UK, East European models:
MW: 531 – 1,602 kHz (with the
interval set at 9 kHz)
LW: 153 – 279 kHz (with the
interval set at 3 kHz)
Other models:
AM: 531 – 1,602 kHz (with the
tuning interval set at 9 kHz)
530 – 1,710 kHz (with the
tuning interval set at 10 kHz)
Antenna AM loop antenna,
Externalantenna terminals
Intermediate frequency
450 kHz
Amplifier section
US, Canadian models:
Continuous RMS power output
60W+60W (6 ohms at
1 kHz, 5% THD)
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trade-
marks of Dolby Laboratories Licensing Corporation.
* Manufactured under license from Dolby Laborato-
ries Licensing Corporation. “Dolby”, the double-D
symbol a are “Pro Logic” are trademarks of Dolby
Laboratories Licensing Corporation.
Photo: HCD-RX30
HCD-GR3/RX30 is the tuner, deck, CD and ampli-
fier section in MHC-GR3/RX30.
Wavelength 780 – 790 nm
Tuner section
FM stereo, FM/AM superheterodyne
tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz
Antenna FM lead antenna
Antenna terminals
75 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
US, Canadian models:
AM: 531 – 1,710 kHz (with the
tuning interval set at 9 kHz)
530 – 1,710 kHz
(with the tuning interval set
at 10 kHz)
German models:
AM: 531 – 1,602 kHz (with the
interval set at 9 kHz)
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
Laser output Max. 44.6µ W*
* This output is the value
measured at a distance of
200 mm from the
objective lens surface on
the Optical Pick-up Block
with 7 mm aperture.

Sony HCD-GR3 Specifications

General

Brand	Sony
Model	HCD-GR3
Category	Car Receiver
Language	English

Summary

SPECIFICATIONS

Audio Power Specifications

U.S. model power output and total harmonic distortion details.

SECTION 1 SERVICING NOTE

AC Leakage Check and Methods

Checking AC leakage and measurement procedures.

SECTION 1 SERVICING NOTE (Continued)

Optical Pick-up Handling and Laser Checks

Safe handling, emission checks, and focus search for optical pick-up.

SECTION 3 DISASSEMBLY

3-1. Loading Panel Disassembly

Procedure to open the disc tray by disassembling the loading panel.

3-2. Front Panel Removal

Steps to remove the front panel by disconnecting wires and screws.

SECTION 3 DISASSEMBLY (Continued)

3-3. TC Mechanism Deck Removal

Procedure to remove the TC mechanism deck.

3-5. Disc Tray Removal

Procedure to remove the disc tray after front panel removal.

3-4. CD SW and Panel Board Removal

Steps to remove CD SW and panel boards.

SECTION 4 MECHANICAL ADJUSTMENTS

Torque Measurement Details

Table of torque measurements for tape transport mechanisms.

SECTION 5 ELECTRICAL ADJUSTMENTS

Deck Section Adjustment Overview

General notes on deck section adjustments, order, and settings.

Record/Playback Head Azimuth Adjustment

Procedure for adjusting the record/playback head azimuth.

ELECTRICAL ADJUSTMENTS (Continued)

Tape Speed Adjustment Procedure

Steps to adjust tape speed for Deck A and Deck B.

Record Bias Adjustment (Deck B)

Procedure to adjust bias for recording on Deck B.

Playback Level Adjustment Procedure

Steps to adjust playback level for both channels.

Record Level Adjustment (Deck B)

Procedure to adjust the record level for Deck B.

TUNER SECTION ADJUSTMENTS

AM Tuned Level Adjustment

Procedure for adjusting the AM tuned level.

FM Tuned Level Adjustment

Procedure for adjusting the FM tuned level.

CD SECTION ADJUSTMENTS

S Curve Check Procedure

Procedure for checking the S-curve waveform.

Focus Bias Adjustment

Procedure to adjust focus bias when the optical block is replaced.

RF Level Check Procedure

Procedure to check the RF signal level.

CD SECTION ADJUSTMENTS (Continued)

E-F Balance Check Procedure

Procedure for checking the E-F balance waveform.

SECTION 7 EXPLODED VIEWS

7-1. Case Section Exploded View

Exploded view of the case section with parts list.

SECTION 7 EXPLODED VIEWS (Continued)

7-2. Front Panel Section 1 Exploded View

Exploded view of front panel section 1 with parts list.

7-3. Front Panel Section 2 Exploded View

7-4. Back Panel Section Exploded View

7-5. CD Mechanism Section 1 Exploded View

7-6. CD Mechanism Section 2 Exploded View

7-7. Base Unit Section Exploded View

7-8. TC Mechanism Section 1 Exploded View

7-9. TC Mechanism Section 2 Exploded View

7-10. TC Mechanism Section 3 Exploded View