Sony CX-LFA660 - User Manual

SERVICE MANUAL
Sony Corporation
Personal Audio Division
Published by Sony Engineering Corporation
AEP Model
UK Model
CX-LFA660/LFA770
Australian Model
CX-LFA660
COMPACT DISC DECK RECEIVER
9-879-045-02
2005J16-1
© 2005.10
Ver. 1.1 2005.10
SPECIFICATIONS
CX-LFA660/LFA770
CX-LFA660/LFA770 are the Amplifier, CD player, Tape
Deck and Tuner section in XR-FA660/FA770.
Model Name Using Similar Mechanism NEW
CD CD Mechanism Type CDM77B-F1BD81A
Section Base Unit Name BU-F1BD81A
Optical Pick-up Name KSM-215DCP/C2NP
TAPE Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type CMAL1Z240A
Photo : CX-LFA660
Amplifier section
CX-LFA770 for XR-FA770
DIN power output (rated): 55 + 55 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
70 + 70 W
(6 ohms at 1 kHz, 10%
THD)
Music power output (reference):
125 + 125 W
CX-LFA660 for XR-FA660
European model:
DIN power output (rated): 40 + 40 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
50 + 50 W
(6 ohms at 1 kHz, 10%
THD)
Music power output (reference):
85 + 85 W
Other models:
The following measured at AC 230 – 240 V, 50/60 Hz
DIN power output (rated): 40 + 40 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
50 + 50 W
(6 ohms at 1 kHz, 10%
THD)
Inputs
MD IN (RCA pin jacks): Sensitivity 2 V,
impedance 47 kilohms
Outputs
PHONES (stereo mini jack):
Accepts headphones with
an impedance of 32 ohms
or more
SPEAKER: Accepts impedance of
6ohms
CD player section
Laser Semiconductor laser
(λ=770 – 810 nm)
Emission duration:
continuous
Frequency response 20 Hz – 20 kHz
Tape deck section
Recording system 4-track 2-channel, stereo
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Summary

SERVICING NOTES

Handling Optical Pick-up and Laser Diode

Notes on handling the optical pick-up block, laser diode, and emission checks.

Model Identification

Details for identifying the product model, particularly on the back panel.

DISASSEMBLY

Disassembly Flowchart

Flowchart outlining the step-by-step disassembly process.

CD Mechanism Section Disassembly

Procedure for disassembling the CD mechanism section.

Base Unit, Belt, and Driving Gear Disassembly

Procedure for disassembling the base unit, belt, and driving gear.

TEST MODE OPERATIONS

Cold Reset Procedure

Procedure to clear all data and reset the system to initial conditions.

Disc Tray Lock;Unlock Function

Procedure for locking and unlocking the disc tray for anti-theft.

MECHANICAL ADJUSTMENTS

Torque Measurement Specifications

Details on torque values and measurement methods for various components.

ELECTRICAL ADJUSTMENTS

Deck Section Adjustments

Procedures for adjusting the deck section, including azimuth and tape speed.

Tape Speed Check Procedure

Steps to check and verify the tape speed accuracy.

DIAGRAMS AND SCHEMATICS

Notes on Reading Diagrams

Common notes and symbol explanations for schematic and PWB diagrams.

BD Section Block Diagram

Block diagram illustrating the BD section's overall architecture.

MAIN Section Schematic Diagrams

Schematic diagrams for the MAIN section (two parts).

EXPLODED VIEWS

Overall Section Exploded View

Exploded view of the entire unit, showing major assemblies and parts.

CD Mechanism Deck Section Exploded View

Exploded view of the CD mechanism deck assembly.

ELECTRICAL PARTS LIST

AMP Section Parts List

List of electrical components for the amplifier section.

Sony CX-LFA660 Specifications