Sony CDP-557ESD Service Manual

Compact disc player
System
Laser output
Frequency
response
Signal to noise
ratio
Harmonic
distortion
Wow and flutter . Below measurable limit
Channel
separation
Photo: CDP-557ESD
SPECIFICATIONS
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.
CDP-557ESD:
2 Hz — 20 kHz
+0.5 dB
CDP-707ESD:
2 Hz — 20 kHz
+0.3 dB
More than 115 dB
Less than
0.0015%
More than 110 dB
Outputs
LINE OUT (FIXED)
(phono jacks) :
LINE OUT
(VARIABLE)
(phono jacks)
DIGITAL OUT
(COAXIAL)
(phono jacks)
DIGITAL OUT
(OPTICAL)
(optical output
connector)
HEADPHONES
(stereo phone jack)
CAUTION
US Model
Canadian Model
CDP-707ESD
AEP Made!
UK Model
E Model
COP-557ESD
Output level 2 V (at 50 kilohms)
Load impedance over 10 kilohms
Output impedance 200 ohms
Output level max. 2 V (at 50 kilohms)
Load impedance over 50 kilohms
Output
impedance
200 ohms —
5.1 kilohms
Output level 0.5 Vp-p (at 75 ohms)
Load impedance 75 ohms
Wave length 660 nm
Output level -18 dBm
Output level max. 28 mW
Load impedance 32 ohms
Use of controls or adjustments or performance
of procedures other than those specified herein
may result in hazardous radiation exposure.
COMPACT DISC PLAYER
ON
Y.

Sony CDP-557ESD Specifications

General

Type	CD Player
Frequency Response	2 Hz to 20 kHz
Output Level	2 V
Digital outputs	Coaxial, Optical
Year	1987
Disc format	CD

Summary

Specifications

Compact Disc Player Specs

Technical specifications for the CD player system and its components.

Output Specifications

Technical details regarding the player's audio and digital output capabilities.

General Information

Unit Specifications

Physical dimensions, weight, and power requirements for different models.

Features

Player Functionality

Key features like custom file, program play, and display modes.

Safety Check-out

Leakage Test Procedure

Method for checking AC leakage to ensure operational safety.

Servicing Notes

Optical Pick-up Handling

Precautions for safely handling the optical pick-up block.

Laser Diode Safety

Guidelines for checking laser diode emission and related operations.

Location of Controls

Front Panel Controls

Identification and description of controls on the front panel of the unit.

Remote Commander Layout

Diagram and listing of buttons on the remote control unit.

Section 1: Disassembly

Nut of Volume Removal

Procedure for removing the volume control nut.

Section 2: Electrical Adjustments

Adjustment Mode

Steps to enter the unit's adjustment mode for calibration.

RF PLL Adjustment

Procedure for adjusting the RF PLL frequency counter setting.

Focus Bias Adjustment

Method for adjusting focus bias for optimal waveform.

E-F Balance Adjustment

Process for adjusting E-F balance for symmetrical waveforms.

Distortion Adjustment

Steps to minimize distortion when replacing certain components.

Focus/Tracking Gain Adjustment

Simple adjustment method for focus and tracking gain.

Diagrams

Optical Pick-up Block Mounting Diagram

Diagram showing the mounting of the optical pick-up block.

IC Block Diagrams

Schematic diagrams illustrating the internal blocks of key ICs.

Waveforms

Illustrations of expected waveforms during specific operations.

Main Section Mounting Diagram

Diagram showing the placement of components on the main section.

Section 4: Exploded Views and Parts List

Exploded Views and Parts List

Visual breakdown of unit parts and their corresponding list.

Section 5: Electrical Parts List

Capacitors and Semiconductors

List of capacitors and semiconductors with part numbers and values.

Troubleshooting Guide

Common Problems and Remedies

Guide to diagnose and fix common operational issues.

Correction-1

Correction-2