Sony HCD-XGR88 User Manual

HCD-XGR88
E Model
COMPONENT Hi-Fi STEREO SYSTEM
— Continued on next page —
SPECIFICATIONS
• HCD-XGR88 is the Amplifier,
CD player, tape deck and tuner
section in LBT-XGR88.
Ver 1.0 2003.03
9-877-210-01
2003C0200-1
© 2003.03
Model Name Using Similar Mechanism HCD-XGR80
CD CD Mechanism Type CDM37B-30BD60C
Section Base Unit Name BU-30BD60C
Optical Pick-up Name A-MAX.3
TAPE Model Name Using Similar Mechanism NEW
Section Tape Mechanism Type CWM43RR23
SERVICE MANUAL
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
Amplifier section
The following measured at AC 120, 220, 230 – 240 V 50/60 Hz
DIN power output (rated): 145 + 145 watts (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
180 x 2 + 180 x 2 watts
(6 ohms at 1 kHz, 10% THD)
Inputs
PHONO IN
(phono jacks): sensitivity 3 mV, impedance 47 kilohms
MIC
(phone jack): sensitivity 1 mV, impedance 10 kilohms
GAME INPUT AUDIO L/R
(phono jacks): sensitivity 250 mV, impedance 47 kilohms
GAME INPUT VIDEO
(phono jack): 1Vp-p, 75 ohms
MD (VIDEO) IN L/R (phono jacks):
sensitivity 450 mV(250 mV),
impedance 47 kilohms
Outputs
PHONES
(stereo phone jack): accepts headphones of 8 ohms or more
MD (VIDEO) OUT L/R
(phono jacks): voltage 250 mV, impedance 1 kilohms
VIDEO OUT
(phono jack): max. output level 1Vp-p,
load impedance 75 ohms
FRONT SPEAKER: accepts impedance of 6 to 16 ohms
(SUPER WOOFER)
accepts impedance of 6 to 16 ohms
(TWEETER & WOOFER)
CD player section
System Compact disc digital audio system
Laser Semiconductor laser (λ=795 nm)
Emission duration: continuous
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
CD OPTICAL DIGITAL OUT
(square optical connector jack, rear panel)
Wavelength 660 nm
Output level –18 dBm
Tape deck section
Recording system 4-track 2-channel, stereo
Frequency response 50 – 13,000 Hz (±3 dB), using Sony TYPE I
cassettes

Sony HCD-XGR88 Specifications

General

Cassette Deck	Yes
CD Player	Yes
USB Port	Yes
MP3 Playback	Yes
Remote Control	Yes
Functions	CD, Cassette
Tuner Bands	FM

Summary

SPECIFICATIONS

Amplifier Section

CD Player Section

Tuner section

General Specifications

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

ESD Precautions

Highlights electrostatic breakdown risks and handling care for the optical pick-up.

NOTES ON LASER DIODE EMISSION CHECK

Laser Beam Safety

Advises on safe observation distance for laser diode emission checks.

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

S-Curve Check Procedure

Outlines the steps for verifying S-curve waveforms for focus search.

DISASSEMBLY

CASE

FRONT PANEL SECTION

TAPE MECHANISM DECK

CD MECHANISM DECK

TEST MODE

MC Cold Reset Procedure

Clears all RAM data, including preset data, returning the set to initial conditions.

AM Tuning Interval Setting

Allows changing the AM tuning interval between 9 kHz and 10 kHz.

CD Ship Mode

Moves the optical pick-up to a position durable to vibration for shipping.

LED and Indicator Check Mode

Activates all LEDs and the fluorescent indicator tube for testing.

Sled Servo Mode

Enables free movement of the CD sled motor for cleaning or adjustment.

Aging Mode

Tests tape deck and CD section operations in parallel for quality assurance.

VACS ON/OFF

MECHANICAL ADJUSTMENTS

Torque Measurement

Provides torque specifications for FWD and FF/REW modes.

ELECTRICAL ADJUSTMENTS

Precaution

Test Tape Specifications

Lists test tapes and their signals used for adjustments like azimuth and speed.

Head Azimuth Adjustment

Procedure for adjusting the record/playback head azimuth for optimal playback.

CD Section Tests

Covers S-Curve, E-F Balance, and RF Level checks for CD performance.

DIAGRAMS

CIRCUIT BOARD LOCATION

BLOCK DIAGRAMS

IC PIN FUNCTIONS

IC BLOCK DIAGRAMS