Sony HCD-GN880 User Manual

HCD-GN880
E Model
Australian Model
SERVICE MANUAL
MiNi Hi-Fi COMPONENT SYSTEM
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-802-01
2004D02-1
© 2004.04
SPECIFICATIONS
Ver 1.0 2004. 04
– Continued on next page –
• HCD-GN880 is the Amplifier,
CD player, tape deck and tuner
section in MHC-GN880.
Model Name Using Similar Mechanism HCD-GX450
CD CD Mechanism Type CDM74-F1BD81
Section Base Unit Name BU-F1BD81A
Optical Pick-up Name KSM-215DCP/C2NP
TAPE Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type CWM43RR35
Amplifier section
The following are measured at
Mexican model: AC 127 V, 60 Hz
Other models: AC 120, 220, 240 V, 50/60 Hz
DIN power output (rated) 180 + 180 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
225 + 225 watts
(6 ohms at 1 kHz, 10% THD)
Inputs
VIDEO/MD (AUDIO) IN (phono jacks):
voltage 250/450 mV, impedance 47
kiloohms
GAME (VIDEO) IN (phono jack):
1 Vp-p, 75 ohms
GAME (AUDIO) IN (phono jack):
voltage 250 mV, impedance 47 kiloohms
MIC (phone jack): sensitivity 1 mV, impedance 10 kiloohms
Outputs
VIDEO OUT (phono jack): max. output level
1 Vp-p, unbalanced, Sync
negative, load impedance 75 ohms
PHONES (stereo mini jack): accepts headphones of 8 ohms or
more
FRONT SPEAKER: Use only the supplied speaker
SS-GN880
SURROUND SPEAKER: Use only the supplied speaker SS-RS880
SUBWOOFER OUT: Use only the supplied subwoofer SS-WG880
Disc player section
System Compact disc and digital audio system
Laser Semiconductor laser
(λ=780 nm)
Emission duration: continuous
Laser Output Max. 44.6 µW*
*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.
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Wave length 780 – 790 nm
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
OPTICAL CD DIGITAL OUT
Wave length 660 nm
Output Level –18 dBm

Sony HCD-GN880 Specifications

General

Brand	Sony
Model	HCD-GN880
Category	Stereo System
Language	English

Summary

SECTION 1 SERVICING NOTES

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

Handle optical pick-up block with care to prevent electrostatic damage.

NOTES ON LASER DIODE EMISSION CHECK

Observe laser beam emission from a safe distance to avoid eye strain.

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

Perform "S curve check" in CD section adjustment for proper waveform output.

SECTION 3 DISASSEMBLY

3-1. DISASSEMBLY FLOW

SECTION 4 TEST MODE

[GC TEST MODE]

Mode for checking fluorescent indicator tube, LEDs, model, version, etc.

[MC TEST MODE]

Mode to check Amplifier, Tuner, and Tape operations.

[COLD RESET]

Clears all data and resets RAM to initial conditions.

Display when an error occurred (CD Error Code Mode)

Displays error codes for CD playback issues.

[CD SHIP MODE (WITH MEMORY CLEAR)]

SECTION 6 ELECTRICAL ADJUSTMENTS

DECK SECTION

RECORD/PLAYBACK HEAD AZIMUTH ADJUST-MENT

Procedure for adjusting the azimuth of the record/playback heads.

S-curve Check

Procedure for checking the CD section's S-curve waveform.

RFAC Level Check

Procedure for checking the RFAC signal level in the CD section.

E-F Balance Check

Procedure for checking the E-F balance in the CD section.

SECTION 7 DIAGRAMS

7-2. BLOCK DIAGRAM - CD SECTION –

7-4. BLOCK DIAGRAM - MAIN SECTION –

7-7. SCHEMATIC DIAGRAM - BD BOARD

7-11. SCHEMATIC DIAGRAM - MAIN BOARD (1/3)

Schematic diagram for the main board, part 1 of 3.

7-20. SCHEMATIC DIAGRAM - PANEL BOARD (1/2)

7-26. IC Pin Function Descriptions

IC101 CXD3059AR (RF AMP) (BD BOARD)

Pin function descriptions for IC101 on the BD board.

IC401 M3062CMEN-A03FPUO SYSTEM CONTOL (MAIN Board)

Pin function descriptions for IC401 on the main board.

SECTION 8 EXPLODED VIEWS

SECTION 9 ELECTRICAL PARTS LIST