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HCD-CPX22/NXM3
SERVICE MANUAL
Ver 1.0 2004. 04
• HCD-CPX22 is the Amplifier, CD player,
tape deck and tuner section in CMT-CPX22.
• HCD-NXM3 is the Amplifier, CD player,
tape deck and tuner section in MHC-NXM3.
Amplifier section
For the U.S.A. model
AUDIO POWER SPECIFICATIONS
HCD-CPX22
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 4-ohm loads, both channels driven, from 120 – 10,000 Hz;
rated 100 watts per channel minimum RMS power, with no more
than 10% total harmonic distortion from 250 milliwatts to rated
output.
Other models:
The following measured at AC 120 – 127/220 – 240 V, 50/60 Hz
(Saudi Arabian model only)
The following measured at AC 230 V, 50/60 Hz (European and
Russian models only)
The following measured at AC 120/220 – 240 V, 50/60 Hz (except
for European, Russian and Saudi Arabian models)
DIN power output (rated):
75 + 75 watts (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
100 + 100 watts
(4 ohms at 1 kHz, 10% THD)
Inputs
VIDEO/MD IN (phono jacks): Sensitivity 250/450 mV, impedance
47 kilohms
Outputs
DIGITAL (OPTICAL) OUT: Optical Wavelength: 660 nm
PHONES (mini jack):
accepts headphones with an
impedance of 8 ohms or more
Sony Corporation
9-877-828-01
Home Audio Company
2004D02-1
Published by Sony Engineering Corporation
© 2004.04
Photo : HCD-CPX22
Model Name Using Similar Mechanism
CD
CD Mechanism Type
Section
Base Unit Name
Optical Pick-up Name
TAPE
Model Name Using Similar Mechanism
Section
SPECIFICATIONS
SPEAKER:
CD player section
System
Laser
Frequency response
Tape deck section
Recording system
Frequency response
MICRO Hi-Fi COMPONENT SYSTEM
MiNi Hi-Fi COMPONENT SYSTEM
US Model
HCD-CPX22
AEP Model
HCD-CPX22/NXM3
UK Model
E Model
HCD-CPX22
NEW
CDM81B-F1BD81A
BU-F1BD81A
KSM-215DCP/C2NP
NEW
Use only the supplied speakers
SS-CPX22
(HCD-CPX22)
SS-NXM3
(HCD-NXM3)
Compact disc and digital audio system
Semiconductor laser
(λ=770 – 810 nm)
Emission duration: continuous
2 Hz – 20 kHz (±0.5 dB)
4-track 2-channel stereo
50 – 13,000 Hz (±3 dB), using Sony
TYPE I cassettes
– Continued on next page –
HCD-CPX22
HCD-NXM3

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Summarization of Contents

SERVICE MANUAL
Model Identification
Identifies different regional models for the HCD-CPX22/NXM3.
Product Description
Describes the HCD-CPX22 and HCD-NXM3 units.
SPECIFICATIONS
Amplifier Section Specifications
Details audio power output and total harmonic distortion.
CD Player Section Specifications
Details CD player system, laser, and frequency response.
Tape Deck Section Specifications
Details tape deck recording system and frequency response.
Tuner Section Specifications
FM Tuner Section Details
Covers tuning range, antenna, and IF frequency.
AM Tuner Section Details
Covers tuning range, antenna, and IF frequency.
General Specifications & Safety
Power Requirements & Dimensions
Lists power needs, physical size, and weight.
Supplied Accessories List
Lists included items with the product.
SAFETY CHECK-OUT Procedures
AC Leakage Testing Methods
Explains methods for checking AC leakage.
SERVICING NOTES
Optical Pick-up Handling & Checks
Precautions for the laser assembly and emission checks.
GENERAL Controls and Operations
Locating Main Unit Controls
Identifies controls on the main unit.
Main Unit Button Functions
Explains functions of main unit buttons.
Remote Control Operations
Remote Control Button Functions
Explains functions of remote control buttons.
TEST MODE Operations
AM Tuner Step Change
How to change AM tuner step between 9 kHz and 10 kHz.
Cold Reset Procedure
Resets all data, including presets, to initial conditions.
MD/VIDEO Function Switching
Toggles between MD and VIDEO modes for input selection.
Special Test Modes
GC Test Mode
Tests fluorescent segments and LEDs.
MC Test Modes (Tape & Amplifier)
Tests tape and amplifier functions.
CD Related Modes (Service, Ship, Power)
Manages CD sled, ship mode, and power.
MECHANICAL ADJUSTMENTS
Adjustment Precautions
General precautions for adjustments.
Torque Measurement Specifications
Table of torque specifications for various modes.
ELECTRICAL ADJUSTMENTS
Deck Section Electrical Adjustments
Electrical adjustments for the tape deck.
Head Azimuth Adjustment Procedure
Procedure for record/playback head azimuth adjustment.
CD SECTION Adjustments
Notes on CD Adjustment Procedures
General notes before CD adjustments.
S-curve Check Setup and Procedure
Setup and steps for S-curve waveform check.
E-F Balance Check Procedures
Traverse Waveform Check (Servo OFF)
Checking traverse waveform with servos off.
Traverse Waveform Check (Servo ON)
Checking traverse waveform with servos on.
SECTION 7 DIAGRAMS Overview
Schematic and PWB Diagram Notes
Notes on interpreting schematics and PWBs.
Circuit Board Location Map
Shows physical location of boards.
Signal Waveforms Display
Displays various signal waveforms.
SECTION 8 EXPLODED VIEWS
8-1. MAIN SECTION Exploded View
Exploded view of the main unit assembly.
SECTION 9 ELECTRICAL PARTS LIST
BD Board Parts List
Parts list for the BD board components.

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