Aiwa NSX-SZ72 User Manual

SERVICE MANUAL
DATA
COMPACT DISC STEREO
CASSETTE RECEIVER
NSX-SZ70
NSX-SZ72
NSX-SZ73
EZ,K
EZ
EZ
S/M Code No. 09-006-425-3R3
REVISION
BASIC TAPE MECHANISM: 2ZM-3MK2 PR4NM
BASIC CD MECHANISM: AZG-1 ZD3RDM
• This Service Manual is the “Revision Publishing” and replaces “Simple Manual”
NSX-SZ70/SZ72/SZ73 (S/M Code No. 09-002-425-3T3).
• If requiring information about the CD mechanisim, see Service Manual of AZG-1
(S/M Code No. 09-001-335-3N8).
CD-CASSEIVER
CX-NSZ70
CX-NSZ72
CX-NSZ73
SPEAKER
SX-WNSZ70
SX-WNSZ71
SX-WNH81
SYSTEM
NSX-SZ70
NSX-SZ72
NSX-SZ73
REMOTE CONTROLLER
RC-ZAS01
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Aiwa NSX-SZ72 Specifications

General

Type	Stereo Receiver
Frequency Response	20 Hz - 20 kHz
Total Harmonic Distortion	0.3%
Dimensions	260 x 335 x 310 mm
Cassette Deck	Double Cassette Deck
Input Sensitivity	350 mV
Speaker Impedance	6 - 16 Ω
Functions	CD Player, Cassette Deck
Tuner Bands	AM/FM
CD Player Type	Single CD Player

Summary

Specifications

Amplifier Section

Amplifier power output and distortion specs.

Compact Disc Player Section

CD player laser, D-A converter, S/N, distortion specs.

General Specifications

Overall power, consumption, dimensions, and weight.

Protection of Eyes from Laser Beam During Servicing

Precaution to Replace Optical Block

Precautions for replacing the optical block to prevent electrostatic damage.

Note on Before Starting Repair

Forced Discharge of Electrolytic Capacitor of Power Supply Block

Procedure for safely discharging power supply capacitors before repair.

Check Items Before Exchanging the Microcomputer

Essential checks before replacing the microcomputer.

Tuner Section Adjustments

Clock Frequency Check

Verifies the accuracy of the clock frequency at TP2.

MW VT Check

Checks the VT level at TP1 for MW tuning.

MW Tracking Adjustment

LW VT Adjustment

LW Tracking Adjustment

FM VT Check

FM Tracking Check

MW IF Adjustment

DC Balance / Mono Distortion Adjustment