Sony D-99 Service Manual

CD section
System
Laser diode properties
Spindle speed
Scan velocity
Error correction
D-A conversion
Frequency response
Wow and flutter
Outputs (at 9 V input level)
“*Measured by EIAJ CP-307
General
Power requirements
CAUTION
SPECIFICATIONS
Compact disc digital audio system
Material: GaAlAs
Wavelength: 780 nm
mission duration: Continuous
Laser output: Less than 44.6.W*
*This output is the value measured at a distance of 200 mm
from the objective lens surface on the Optical Pick-up Block.
500 r.p.m. to 200 r.p.m. (CLV)
1.2-1.4 m/sec.
Sony Super Strategy Cross Interleave Reed Solomon Code
{-bit quarz time-axis control
20-20,000 Hz *2dB
Below measurable limit’ *
Line output (stereo minijack)
Output level 1.0 V rms at 50 kilohms
Load impedance over 10 kilohms
Headphones (stereo minijack)
9mW + 9 mW at 16 ohms
Rechargeable battery pack BP-2EX (supplied)
Battery case EBP-2 (supplied) and two size AA (LR6) alkaline
batteries (optional)
DC IN 9 V jack accepts:
Sony AC power adaptor (supplied)
-— Continued on page 2 —
Use of controls or adjustments or performance of pro-
cedures other than those specified herein may result in
hazardous radiation exposure,
COMPACT DI
US Model
Canadian Model
AEP Model
UK Model
E Model
DISstmMaN
Model Name Using Similar Mechanism | D-9,//90
CD Mechanism Type CDM-90

Sony D-99 Specifications

General

Type	Portable CD Player
Model	D-99
DAC	1-bit
Battery	2 x AA
Power supply	3V DC
Disc format	CD
Frequency Response	20 - 20000 Hz ±1 dB

Summary

Specifications

CD Section Specifications

Details about the CD playback system and laser diode properties.

General Specifications

Power requirements and operating conditions for the device.

Section 1 GENERAL

Location and Function of Controls

Identifies and explains the external buttons and controls of the player.

Section 2 SERVICING NOTES

Handling the Optical Pick-up Block

Precautions for handling the sensitive optical pick-up block.

Before Replacing the Optical Block

Procedures and checks before replacing the optical block.

Flexible Circuit Board Repairing

Guidelines for soldering and repairing flexible circuit boards.

Notes on Chip Component Replacement

Precautions for replacing surface-mount components.

Service Mode Operations

Laser Diode Emission Check Procedures

Steps to check if the laser diode is emitting light.

Service Mode Setting Method

Steps to enter the service mode.

Service Mode Operation Steps

Describes the functions and operations within service mode.

Service Mode Release

Procedures to exit the service mode.

IC301 CXD8178Q Terminal Explanations

Section 3 ELECTRICAL ADJUSTMENTS

Notes on Adjustment

General guidelines and precautions for performing adjustments.

Preparation and Checks

Steps to prepare for adjustments and perform initial checks.

+3.4V Adjustment

Procedure for adjusting the +3.4V power supply.

+3.6V Adjustment

Procedure for adjusting the +3.6V power supply.

PLL Free Run Frequency Check and Adjustment

Checking and adjusting the PLL free run frequency.

+3.9V Adjustment

Procedure for adjusting the +3.9V power supply.

Electrical Adjustment Procedures

Tracking Balance Adjustment

Procedure to adjust the tracking balance.

RF Signal Reference Waveform

Description of the RF signal eye pattern.

Focus Bias Adjustment

Procedure to adjust the focus bias.

Adjustment Parts Location Diagram

Illustrates locations of adjustment components on the main board.

Reference and Jig Connections

Focus/Tracking Gain Adjustment

Explains the focus/tracking gain adjustment, noting its difficulty.

CD Jig Connection

Details how to connect the CD jig for adjustments.

Section 4 Diagrams

Block Diagrams

High-level overview of the player's internal circuitry.

Diagram Layouts

PC Board, Switch, and Motor Layouts

Visual layout of key components on the circuit boards.

LCD Module Display

Explains the segments and display modes of the LCD.

Semiconductor Lead Layouts

Printed Wiring Boards and Semiconductor Locations

Printed Wiring Boards

Shows the physical layout of traces on the main circuit boards.

Semiconductor Locations

Pinpoints the physical location of semiconductors on the boards.

Schematic Diagrams

IC Block Diagrams

Section 5 Exploded Views

Upper/Bottom Section

Exploded view of the player's main mechanical parts.

Mechanism Exploded View

Section 6 Electrical Parts List

Capacitors

List of capacitors with part numbers and values.

Resistors

List of resistors with part numbers and values.

Coils

List of coils with part numbers and values.

Semiconductors

List of semiconductors with part numbers.

Accessory and Packing Material List