Sony HCD-NEZ3 User Manual

SERVICE MANUAL
COMPACT DISC DECK RECEIVER
HCD-NEZ3/NEZ5
Ver. 1.3 2005.11
SPECIFICATIONS
Main unit
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
(The United States model only)
CMT-NEZ5
With 6 ohm loads, both channels driven, from
120 − 10,000 Hz; rated 18 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
CMT-NEZ3
With 6 ohm loads, both channels driven, from
120 − 10,000 Hz; rated 9 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Amplifier section
CMT-NEZ5
European model:
DIN power output (rated): 18 + 18 W (6 ohms at
1kHz, DIN)
Continuous RMS power output (reference):
25 + 25W (6 ohms at
1kHz, 10% THD)
Music power output (reference):
38 + 38 W
Pan-American model:
Continuous RMS power output (reference):
20 + 20 W (6 ohms at
1kHz, 10% THD)
Other models:
The following measured at AC 120, 220 or 240 V,
50/60 Hz
DIN power output (rated): 14 + 14 W (6 ohms at
1kHz, DIN)
Continuous RMS power output (reference):
20 + 20 W (6 ohms at
1kHz, 10% THD)
Inputs
AUDIO IN: Sensitivity 250 mV,
impedance 47 kilohms
Outputs
PHONES: Accepts headphones with
an impedance of 8 ohms or
more
SPEAKER: Accepts impedance of 6 to
16 ohms.
CMT-NEZ3
North-American model:
Continuous RMS power output (reference):
10 + 10 W (6 ohms at
1kHz, 10% THD)
European model:
DIN power output (rated): 11 + 11 W (6 ohms at
1kHz, DIN)
Continuous RMS power output (reference):
15 + 15 W (6 ohms at
1kHz, 10% THD)
Music power output (reference):
28 + 28 W
Other models:
The following measured at AC 120, 220 or 240 V,
50/60 Hz
DIN power output (rated): 11 + 11 W (6 ohms at
1kHz, DIN)
Continuous RMS power output (reference):
15 + 15 W (6 ohms at
1kHz, 10% THD)
Inputs
AUDIO IN: Sensitivity 250 mV,
impedance 47 kilohms
Outputs
PHONES: Accepts headphones with
an impedance of 8 ohms or
more
SPEAKER: Accepts impedance of 6 to
16 ohms.
9-879-528-04
2005K05-1
© 2005.11
Sony Corporation
Personal Audio Division
Published by Sony Engineering Corporation
– Continued on next page –
US Model
Australian Model
HCD-NEZ3
Canadian Model
AEP Model
UK Model
E Model
HCD-NEZ3/NEZ5
• HCD-NEZ3 is the amplifier, CD player, tape deck and
tuner section in CMT-NEZ3.
• HCD-NEZ5 is the amplifier, CD player, tape deck and
tuner section in CMT-NEZ5. Photo: HCD-NEZ5
Model Name Using Similar Mechanism NEW
CD Section Base Unit Name BU-K7BD81D2 or BU-K8BD83S-WOD
Optical Pick-up Name KSM-213EDP or KSM-213CDP
TAPE Section
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type CMAL5Z231
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Sony HCD-NEZ3 Specifications

General

Type	CD receiver
Number of Discs	1
Remote Control	Yes
Functions	CD player
Tuner Bands	AM/FM

Summary

Servicing Notes

Handling Optical Pick-Up Block and Base Unit

Guidance on preventing electrostatic breakdown and handling the optical pick-up block and flexible board.

Laser Diode and Focus Search Operation Check

Procedure for checking laser diode emission and identifying potential issues.

Disassembly Procedures

Disassembly Flow

Test Mode Procedures

Cold Reset Procedure

Resets all data to initial conditions, used when returning the set to the customer.

Panel Test Mode

Tests all LCD segments and displays version/release date of the micro computer.

CD Error History Display

CD Power Management Mode

Electrical Adjustments

Record/Playback Head Azimuth Adjustment

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

Focus Bias Check

Procedure for checking focus bias using an oscilloscope and specific test disc.

Diagrams and Waveforms

Block Diagram - CD Servo Section

Detailed block diagram of the CD servo system.

Block Diagram - Main Section

Block diagram illustrating the main sections of the unit.

Printed Wiring Board - CD Board

Schematic Diagram - CD Board

Circuit schematic for the CD board.

Printed Wiring Boards - Main Section

Schematic Diagram - Main Section (1/2)

Circuit schematic for the main board, part 1/2.

Schematic Diagram - Main Section (2/2)

Circuit schematic for the main board, part 2/2.

Printed Wiring Board - Panel Board

Schematic Diagram - Panel Board

Circuit schematic for the panel board.

Printed Wiring Boards - DC Section

Printed Wiring Board - AC Board

Schematic Diagram - Power Supply Section

Exploded Views

Cabinet Section Exploded View

Mechanical Deck Section Exploded View

Panel Board Section Exploded View

Cabinet (Top) Section Exploded View

Main Board Section Exploded View

AC Board, DC Board Section Exploded View

Electrical Parts List