Sony HCD-C770 User Manual

SERVICE MANUAL
SACD/DVD RECEIVER
US Model
Canadian Model
HCD-C770/C990
AEP Model
Australian Model
HCD-C770
HCD-C770/C990
Ver 1.6 2004.09
9-874-059-07 Sony Corporation
2004I05-1 Audio Group
© 2004.09 Published by Sony Engineering Corporation
SPECIFICATIONS
HCD-C770/C990 is the amplifier, DVD/CD
player and tuner section in DAV-C770/C990.
Model Name Using Similar Mechanism NEW
Mechanism Type CDM69-DVBU16
Base Unit Name DVBU16
Optical Traverse Unit Name DBU-1
AUDIO POWER SPECIFICATIONS (C770: US model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 3 ohm loads, both channels driven, from 150 – 10,000 Hz; rated
70 watts per channel minimum RMS power, with no more than 1 %
total harmonic distortion from 250 milliwatts to rated output.
Amplifier section
Stereo mode (C770) 90 W + 90 W (3 ohms at 1 kHz, THD 10 %)
Surround mode (C770) Front: 90 W + 90 W
Center*: 90 W
Rear*: 90 W + 90 W (3 ohms at 1 kHz, THD 10 %)
Subwoofer*: 100 W (3 ohms at 100 Hz, THD 10 %)
* Depending on the sound field settings and the source, there may be no sound output.
Inputs (Analog) VIDEO 1, 2:
Sensitivity: 150 mV
Impedance: 50 kilohms
Inputs (Digital) VIDEO 2 (optical):
Sensitivity: –
Outputs (Analog) VIDEO 1 (AUDIO OUT):
Voltage: 2 V
Impedance: 1 kilohms
PHONES:
Accepts low- and high-impedance headphones
AUDIO POWER SPECIFICATIONS (C990: US model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 3 ohm loads, both channels driven, from 150 – 10,000 Hz; rated
75 watts per channel minimum RMS power, with no more than 1 %
total harmonic distortion from 250 milliwatts to rated output.
Stereo mode (C990) 100 W + 100 W (3 ohms at 1 kHz, THD 10 %)
Surround mode (C990) Front: 100 W + 100 W
Center*: 100 W
Rear*: 100 W + 100 W (3 ohms at 1 kHz, THD 10 %)
Subwoofer*: 100 W (3 ohms at 100 Hz, THD 10 %)
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Photo: HCD-C770

Sony HCD-C770 Specifications

General

Brand	Sony
Model	HCD-C770
Category	Receiver
Language	English

Summary

Specifications

Self-diagnosis Function

Self-Diagnosis Error Codes and Actions

Table of self-diagnosis error codes, their causes, and corrective actions.

Safety Check-out

Leakage Test Procedure

Procedure for performing AC leakage tests to ensure safety compliance.

Servicing Notes

Handling Precautions (Optical Pick-up, Laser Diode)

Notes on handling optical pick-up block and laser diode to prevent damage.

DVD Board Replacement and Initialization

Procedures for replacing DVD board and initializing memory.

Disassembly

Panel and Mechanism Deck Disassembly

Procedures for removing front panel, side panels, and mechanism deck.

Assembly

Phase Adjustment Procedures

Procedure for phase adjustment between pinions and sliders.

Test Mode Operations

Test Mode Overview and Syscon Diagnosis

How to enter test mode and utilize Syscon Diagnosis for system checks.

Drive Adjustments (Auto, Manual, Disc Type)

Procedures for drive auto adjustment, manual operations, and disc type setup.

Mecha Aging and Error History Logs

Electrical Adjustments

Auto Servo Adjustment Procedure

Re-adjusting servo circuit after parts replacement, using drive auto adjustment.

RF Level Check Procedure

Checking RF signal level and waveform clarity using an oscilloscope.

IC Block Diagrams

RF, DVD, DSP, Audio, and FL IC Block Diagrams

Memory, Amplifier, Stream Processor, and Power Supply IC Block Diagrams

IC Pin Function Descriptions

DVD Board IC Pinouts (Mechanism, DSP, Decoder)

Pin function descriptions for key DVD board ICs: mechanism controller, DSP, and DVD decoder.

DVD Board IC Pinouts (Interface, Memory, System Controller)

Pin function descriptions for DVD board ICs: data bus interface, memory, and system controller.

Audio DSP and Changer Controller IC Pinouts

Exploded Views

Chassis & General Assembly Exploded Views

Mechanism Deck Exploded Views (Parts 1-7)

Detailed exploded views of the mechanism deck and optical pick-up sections.

Electrical Parts List

DVD Board Parts List