Sony D-555 User Manual

SERVICE MANUAL
US Model
D-555
AEP Model
UK Model
E Model
D-2Z555
DISChan
D-=250
CDM- 555
Model Name Using Similar Mecanism
Tape Transport Mechanism Type
SPECIFICATIONS
CD
section
General
System
Compact
disc
digital
audio
system
Power
requirements
Supplied
rechargeable
sei)
pack
(BP-2EX)
or
BP-100
(optional)
Laser diode properties Material: GaAlAs
Wavelength: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 pW
This output is the value measured at a distance
of 200 mm from the objective lens surface on
the Optical Pick-up Block.
Error correction Sony Super Strategy Cross Interleave Reed Solomon Code
D-A conversion 16-bit linear, 8fs digital filter
Frequency response 20 - 20,000 Hz +1 dB*
Signal-to-noise ratio | More than 90 dB
Wow and flutter Below measurable limit*
Outputs (at 9 V input level)
Line output (stereo minijack)
Output level 0.7 V rms at 50 kilohms
Load impedance over 10 kilohms
Optical digital output (optical output connector)
Output level: -21 — -15 dBm
Wavelength: 630 — 690 nm at peak level
Headphones (stereo minijack)
9 mW + 9 mW at 32 ohms
* Measured by EIAJ CP-307
MICROFILM
DC IN 9 V jack accepts:
Supplied AC power adaptor for use on 120V AC, 60 Hz
Sony CPM-200P car mount plate (optional) or
Sony DCC-120A car battery cord (optional) for use on
12 V car battery
Power consumption 3,2 WDC
Dimension
Approx.
127.6
x
33
x
145
mm
(5
x
15/16
x
5"/16
inches)
(w/h/d)
not incl. inclined part (depth), projecting parts and controls
Approx. 130 x 33.8 x 145.5 mm (5's x 15/16 x 5/16 ees)
(w/h/d) incl. projecting parts and controls
Weight Approx. 520g (1.2Ib) not incl. rechargeable battery
Approx. 600g (1.5Ib) incl. rechargeable battery (BP-2EX)
Supplied accessories AC power adaptor (1)
Rechargeable battery pack (1)
Carrying case (1)
Connecting cord (1) (stereo miniplug - two phono plugs)
Design and specifications subject to change without notice.
Notes on AC power adaptor
Disconnect the AC power adaptor when the unit will
not be used. A
e Use only the supplied AC power adaptor or the —
recommended car battery cord manufactured by
Sony. Polarity of the plugs of other manufacturers
may be different. Polarity of the Sony plug
COMPACT DISC COMPACT PLAYER
SONY.

Sony D-555 Specifications

General

Type	Portable CD Player
Model	D-555
Digital converter	1-bit DAC
Power Requirements	6V DC
Audio Output	Stereo
Disc format	CD
Frequency response	20 Hz - 20 kHz
DAC	1-bit
Laser	Semiconductor laser
Features	Digital Out
Battery	AA batteries

Summary

Product Specifications

CD Section Details

Technical specifications for the CD playback system and laser diode.

General Specifications

Power requirements, dimensions, weight, and supplied accessories.

AC Power Adaptor Notes

Important usage and safety notes for the AC power adaptor.

General Controls and Functions

Location of Controls

Identifies the physical buttons, jacks, and indicators on the device.

Servicing Notes and Precautions

Handling Optical Pick-up Block

Critical handling instructions for the sensitive optical pick-up block.

Flexible Circuit Board Repair

Guidelines for soldering and handling flexible circuit boards.

Chip Component Replacement

Tips for replacing surface-mount chip components.

Optical Block Replacement

Pre-replacement checks and parameters for the optical block.

Laser Diode Emission Check Procedure

Emission Check Overview

How to safely observe laser diode emission from a distance.

Laser Diode Check Procedure

Step-by-step guide for checking laser diode emission using a VOM.

Service Mode Operation

Setting Service Mode

Method to enter the device's service mode.

Operating Service Mode

Detailed steps for using the service mode functions.

Exiting Service Mode

Procedure to safely release service mode.

Electrical Adjustments

Adjustment Preparation and Checks

Pre-adjustment steps including sled motor and focus search checks.

Focus Bias Adjustment

Procedure to adjust focus bias using an oscilloscope.

Tracking Balance Adjustment

Procedure to adjust tracking balance using an oscilloscope.

Battery Display Adjustment

Procedure to adjust the battery level display accuracy.

+6V Adjustment

Procedure to adjust the +6V power supply output.

+3.4V Adjustment

Procedure to adjust the +3.4V power supply output.

Rechargeable Voltage Adjustment

Procedure to adjust the rechargeable battery voltage.

PLL Free Run Frequency Check/Adjustment

Procedure for checking and adjusting the PLL free run frequency.

Focus Bias Adjustment Procedure

Detailed procedure for focus bias adjustment using an oscilloscope.

Focus/Tracking Gain Adjustment

Procedure for adjusting focus/tracking gain with a CD jig.

Diagrams and Waveforms

Waveform Examples

Visual representations of various signal waveforms encountered in the unit.

Block Diagram Overview

High-level functional block diagram of the device's circuitry.

Printed Wiring Board - Main Section

Schematic Diagram - Main Section

Schematic Diagram - Servo Section

Printed Wiring Board - Servo Section

Circuit Board Locations

IC Block Diagrams

Exploded Views - Cabinet Section

Cabinet Parts List

Detailed list of parts for the cabinet assembly.

Exploded View - Chassis Section (1)

Exploded View - Chassis Section (2)

Exploded View - Mechanism Section

Electrical Parts List

Accessory and Packing Material