Sony HCD-DX255 - User Manual

SERVICE MANUAL
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
US Model
Canadian Model
HCD-DX155/DX255
E Model
Australian Model
HCD-DX155
SUPER AUDIO CD/DVD RECEIVER
9-887-098-03
2006D16-1
© 2006.04
Ver. 1.2 2006.04
HCD-DX155/DX255
HCD-DX155/DX255 are the amplifier, DVD/CD
and tuner section in DAV-DX155/DX255.
SPECIFICATIONS
Model Name Using Similar Mechanism HCD-DX150
Mechanism Type CDM81C-DVBU101
Optical Pick-up Name KHM-310CAB
This system incorporates with Dolby*
1
Digital and Dolby Pro Logic (II)
adaptive matrix surround decoder and the DTS*
2
Digital Surround
System.
*1 Manufactured under license from Dolby Laboratories.
“Dolby,” “Pro Logic,” and the double-D symbol are trademarks of
Dolby Laboratories.
*2 Manufactured under license from Digital Theater Systems, Inc.
“DTS” and “DTS Digital Surround” are trademarks of Digital
Theater Systems, Inc.
— Continued on next page —
Photo : HCD-DX255
AUDIO POWER SPECIFICATIONS
for the US model
DX155
POWER OUTPUT AND
TOTAL HARMONIC
DISTORTION
(FTC Output Power): FL/FR/LS/RS/C: 84 W/ch
3 ohm at 170 - 20,000 Hz,
0.7 % THD
SW: 80 W 3 ohm at 40 -
170 Hz, 0.7 % THD
DX255
POWER OUTPUT AND
TOTAL HARMONIC
DISTORTION
(FTC Output Power): FL/FR/LS/RS/C: 84 W/ch
3 ohm at 170 - 20,000 Hz,
0.7 % THD
SW: 160 W 1.5 ohm at 40 -
170 Hz, 0.7 % THD
Amplifier section
DX155
US models:
Surround mode (reference)
RMS output power, 10 %
THD
Front: 142 W + 142 W
(with SS-TS52)
Center*: 142 W
(with SS-CT51)
Surround*: 142 W + 142
W
(with SS-TS51)
Subwoofer*: 140 W
(with SS-WS52)
Mexican and other models:
Stereo mode (rated) 108 W + 108 W (3 ohms at
1 kHz, 1 % THD)
Surround mode (reference)
RMS output power, 10 %
THD
Front: 142 W + 142 W
(with SS-TS52)
Center*: 142 W
(with SS-CT51)
Surround*: 142 W + 142
W
(with SS-TS51)
Subwoofer*: 140 W
(with SS-WS52)
Latin American models:
Stereo mode (rated) 100 W + 100 W (3 ohms at
1 kHz, 1 % THD)
Surround mode (reference)
RMS output power, 10 %
THD
Front: 133 W + 133 W
(with SS-TS52)
Center*: 133 W
(with SS-CT51)
Surround*: 133 W + 133
W
(with SS-TS51)
Subwoofer*: 135 W
(with SS-WS52)
DX255
US models:
Surround mode (reference)
RMS output power, 10 %
THD
Front: 143 W + 143 W
(with SS-TS52)
Center*: 143 W
(with SS-CT51)
Surround*: 143 W + 143
W
(with SS-TS51)
Subwoofer*: 285 W
(with SS-WS52B)

Summary

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS

Power output and total harmonic distortion for DX155 and DX255 models.

SAFETY AND HANDLING PRECAUTIONS

Leakage Test and Laser Safety

Procedures for AC leakage testing and laser safety warnings.

Repair Handling and Solder Notes

SERVICING NOTES

Optical Pick-up and Laser Diode Handling

Self-diagnosis and Version Display

Information on self-diagnosis codes and version number display.

REMOTE CONTROL OPERATION

Button Descriptions

DISASSEMBLY PROCEDURE

Disassembly Flowchart and Case;Panel

Flowchart and steps for removing the case and front panel.

Mechanism Deck and Base Unit Removal

TEST MODE OPERATIONS

System Reset and Panel Tests

Procedures for cold reset, panel test, and version test modes.

Special Test Modes

Procedures for DVD ship mode, AM step change, and volume test.

ELECTRICAL ADJUSTMENT

Mirror Time and IOP Measurement

Procedures for mirror time adjustment and IOP measurement.

RF Level Check

DETAILED SCHEMATICS AND PWB LAYOUTS

Main Board Schematics (1;10) to (10;10)

IC Block Diagrams and Waveforms

IC PIN FUNCTION DESCRIPTIONS

Main Board IC501 Pin Functions

Detailed pin functions for IC501 (SYSTEM CONTROLLER) on the main board.

Main Board IC1101 Pin Functions

Detailed pin functions for IC1101 (CD/DVD RF AMP, etc.) on the main board.

ELECTRICAL PARTS LIST

Component Lists (Capacitors, Resistors, ICs)

Sony HCD-DX255 Specifications

General

Tuner	FM/AM
CD Player	Yes
USB Playback	Yes
Bluetooth	No
CD Player Type	Single Disc
Tape Deck	No
Remote Control	Yes
Power Output	100 W
Functions	CD, USB, Radio
Output Power	100 W
Speakers	2-way speakers