Sony EJ611 Service Manual

Sony EJ611 Service Manual

Portable cd player

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D-E660/EJ610/EJ611/EJ613/EJ615/EJ616CK
SERVICE MANUAL
Ver 1.5 2001.07
With SUPPLEMENT 1
(9-927-632-81)
With SUPPLEMENT 2
(9-927-632-82)
With SUPPLEMENT 3
(9-927-632-83)
System
Compact disc digital audio system
Laser diode properties
Material: GaAIAs
Wavelength : λ= 780 nm
Emission duration: Continuous
Laser output : Less than 44.6 µW
(This output is the value measured at a distance
of 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture. )
D-A conversion
1-bit quartz time-axis control
Frequency response
+1
20 - 20,000 Hz
dB (measured by EIAJ CP-
-2
307)
Output (at 4.5 V input level)
Line output (stereo minijack)
Output level 0.7 V rms at 47 kilohms
Recommended load impedance over 10
kilohms
Power requirements
For the area code of the model you purchased,
check the upper left side of the bar code on the
package.
• Two Sony NC-WMAA rechargeable
batteries: 2.4 V DC,
• Sony NH-WM2AA rechargeable batteries:
2.4 V DC,
9-927-632-12
Sony Corporation
Personal Audio Company
2001G0200-1
Shinagawa Tec Service Manual Production Group
© 2001.7
Photo : D-EJ611
SPECIFICATIONS
• Two LR6 (size AA) batteries: 3 V DC
• AC power adaptor (DC IN 4.5 V jack):
US, Canadian, C&SA model: 120 V, 60 Hz
AEP, FR, G, EE, E13 model:
220 - 230 V, 50/60 Hz
UK model: 230 - 240 V, 50 Hz
EA model: 110 - 240 V, 50/60 Hz
AUS model: 240 V, 50 Hz
JE, E33 model: 100 - 240 V, 50/60 Hz
HK model: 220 V, 50/60 Hz
AR, CH model: 220 V, 50 Hz
• Sony DCC-E245 car battery cord for use on
car battery : 4.5V DC
Battery life* (approx. hours)
(When you use the CD player on a flat and
stable surface.)
Playing time varies depending on how the CD
player is used.
When using
G-PROTECTION function
Tow NC-WMAA
(charged for about 3 hours**)
NH-WM2AA
(charged for about 4 hours**)
Tow alkaline batteries LR6
*
Measured value by the standard of EIAL
(Electronic Industries Association of Japan).
** Charging time varies depending on how the
rechargeable battery is used.
Canadian Model
Australian Model
D-EJ611/EJ615/EJ616CK
D-EJ610/EJ611/EJ613/EJ615/EJ616CK
Chinese Model
Tourist Model
Model Name Using Similar Mechanism NEW
CD Mechanism Type
Optical Pick-up Type
Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding projecting
parts and controls)
Approx. 131 x 29 x 136 mm
( 5
1
/
x 1
3
/
x 5
3
/
4
16
Mass (excluding accessories)
Approx. 190 g (6.7 oz)
on
off
8
7
18
15
32
28
PORTABLE CD PLAYER
US Model
E Model
AEP Model
UK Model
D-EJ611/EJ615
D-E660
CDM-3223EBA
DAX-23E
in.)
8
– Continued on page 2 –

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Table of Contents
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Summarization of Contents

Servicing Notes and Precautions
Optical Pick-up and Laser Diode Handling
Precautions for handling the optical pick-up and checking laser diode emission.
Pick-up Replacement and Laser Diode Checks
Outlines essential checks and methods for replacing pick-ups and checking laser diodes.
General Information and Controls
Locating Controls and Connectors
Identifies the location of controls and connectors on the CD player.
Disassembly Procedures
Cabinet, Main Board, and MD Assembly Disassembly
Details disassembly of the cabinet, main board, and MD assembly.
Motor Assemblies and Optical Pick-up Disassembly
Details disassembly of motor assemblies and the optical pick-up.
Upper Lid and Switch Unit Disassembly
Details disassembly of the upper lid and switch unit.
Electrical Adjustments and Checks
Precautions and Focus Bias Check
Lists precautions and the procedure for checking focus bias.
RF Signal Waveform Analysis
Explains how to interpret the RF signal waveform for optimal performance.
Diagrams and Schematics
IC Terminal Explanations
Explains the function of each terminal for integrated circuits.
Block Diagram and Printed Wiring Boards
Provides block diagrams and printed wiring board layouts.
Schematic Diagrams
Presents the circuit schematic diagrams of the device.
Exploded Views
Cabinet Section Exploded View
Illustrates the exploded view of the cabinet section and its parts.
Optical Pick-up Section Exploded View
Shows the exploded view of the optical pick-up section and its components.
Servicing Notes - Detailed Procedures
Handling Optical Pick-up and Base Unit
Provides detailed precautions for handling the optical pick-up and base unit during repair.
Laser Diode Emission Check
Details procedures and precautions for checking laser diode emission.
Optical Pick-up Replacement Procedure
Outlines essential checks and procedures before replacing the optical pick-up block.
Laser Diode Checking Methods
Describes operational methods for checking the laser diode's functionality.
General Information - Control Locations
Locating Controls (Front and Inside)
Identifies the location of controls on the front and inside of the CD player.
Disassembly Procedures - Cabinet and MD
Cabinet, Main Board, and MD Assembly Disassembly
Details disassembly of the cabinet, main board, and MD assembly.
MD Assembly Specifics
Details disassembly steps specific to the MD assembly.
Disassembly Procedures - Motors and Lid
Motor Assemblies Disassembly
Details disassembly of motor assemblies (spindle and sled).
Optical Pick-up Disassembly
Details disassembly of the optical pick-up unit.
Upper Lid and Switch Unit Disassembly
Details disassembly of the upper lid and switch unit.
Electrical Adjustments and Checks
Precautions and Focus Bias Check
Lists precautions and the procedure for checking focus bias.
RF Signal Waveform Analysis
Explains how to interpret the RF signal waveform for optimal performance.
Diagrams - IC Terminal Explanations
IC801 Terminal Explanation
Explains the function of each terminal for IC801 (System Controller).
Diagrams - IC Terminal Explanations (Continued)
Other IC Terminal Explanations
Explains the function of terminals for other integrated circuits.
Diagrams - Block and Printed Wiring Boards
Block Diagram Overview
Provides a block diagram illustrating signal flow and component interactions.
Printed Wiring Board Layouts
Shows the layout of printed wiring boards for component placement.
Diagrams - Schematic and IC Block Diagrams
Schematic Diagram
Presents the circuit schematic diagram of the device.
IC Block Diagrams
Illustrates the block diagrams for key integrated circuits.
Diagrams - Waveforms
Waveform Analysis for Key Signals
Illustrates and describes waveforms for various signals like CLOCK, LRCK, R4M, etc.
Exploded Views - Cabinet Section
Cabinet Section Exploded View
Illustrates the exploded view of the cabinet section and its parts.
Exploded Views - Optical Pick-up Section
Optical Pick-up Section Exploded View
Shows the exploded view of the optical pick-up section and its components.
Supplement 1 - Model Additions and Changes
Model Additions and Changes Overview
Details model additions and changes to the main board and related parts.
Changed Parts List - Cabinet Section
Lists changes made to parts in the cabinet section.
Supplement 1 - Printed Wiring Boards
Printed Wiring Boards Layouts
Shows the layout of printed wiring boards for component placement.
Supplement 1 - IC Block Diagrams
IC Block Diagrams Overview
Illustrates the block diagrams for key integrated circuits.
Supplement 1 - Main Board Changes
Main Board Change Details
Details changes made to the main board, including new wiring and part lists.
Supplement 1 - Printed Wiring Boards (Side A)
Printed Wiring Board Layouts (Side A)
Shows the layout of the main board (Side A) for component placement.
Supplement 1 - Printed Wiring Boards (Side B)
Printed Wiring Board Layouts (Side B)
Shows the layout of the main board (Side B) for component placement.
Supplement 1 - Schematic Diagram (Main Board 1/2)
Schematic Diagram - Main Board (1/2)
Presents the circuit schematic diagram for the main board (part 1 of 2).
Supplement 1 - Schematic Diagram (Main Board 2/2)
Schematic Diagram - Main Board (2/2)
Presents the circuit schematic diagram for the main board (part 2 of 2).
Supplement 1 - Waveforms
Waveform Analysis for Key Signals
Illustrates and describes waveforms for various signals like CLOCK, LRCK, R4M, etc.
Supplement 1 - IC Block Diagrams
IC302 and IC401 Block Diagrams
Illustrates the internal block diagrams for IC302 and IC401.
Supplement 1 - IC Block Diagrams (IC601)
IC601 Block Diagram
Illustrates the internal block diagram for IC601 (CXD3027R).
Supplement 2 - Model Addition
Korean Model Addition
Details the addition of a Korean model and its differences from the Hong Kong model.
Difference Parts List
Lists parts that differ between the Korean and Hong Kong models.
Supplement 3 - Main Board Changes
Main Board Changes Overview
Details changes made to the main board, including new wiring and part lists.
Changed Parts List
Lists changed parts for the main board and cabinet sections.
Exploded Views and Electrical Parts List Updates
Covers updates to exploded views and electrical parts lists.

Table of Contents