Sony d ne 820 service manual

Page 1

D-NE820/NE820LS

SERVICE MANUAL

Ver. 1.1 2005.01

AEP Model
UK Model
E Model

D-NlEBZO/D-NEBZOLS
Austral/an Model

D-NE820
Chm ese Model
D-NE 8201. 3
Tourist Model
D-NE820
Photo : BLUE
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM-3325ERV2
Optical Pick-up Name DAXv25EV
SPECIFICATIONS
Systgm Headphones (stereo minijaok) Mess (excluding accessories)
Compact disc digital audio system APPWX 5 mW I' APPIOX 5 111W 8 16 k9 Approx. 165 g (5.9 oz.)
(Approx 1.5 mW + Approx. 1.5 mW at 16 my
Laser dlntte properties Fm- the customers in Europe Supplied accessories
Maten'al: GaAlAa Optical digital output (optical output connector) - AC power adaptor - Charging stand
Wavelength: 1 = 770 . 800 um Output level: 721- 715 dBm - External battery - Rechargeable battery
Emission duration: Continuous Wavelength: 630 - 690 nm at peak level ease with cover
Laser output; Less than 44.6 uW - Buttery carrying case - Carrying pouch
(This output is the value measured at a distance PM!" requirements - Earphones * Remote control
of 200 mm from the objective lens surface on the ' Sony NH-14WM rechargwble battery: - CD-ROM (Sonicsmge)
optical pick-up block with 7 mm aperture.) 1.2 v DC x 1 - Operating instructions
. LR6 (size AA) battery: 15 V DC X l - Installation/Operating Guide
D-A conversiun AC power Bdnpwr (DC IN 3 Vinck) - AC plug adaptor (Supplied with tourist model)

1-bit quartz time-axis control

Frequency response
20 - 20 000 Hz 2dr; (measured by JElTA)

Output (at 3 V input level)

Line output (stereo minijack)
Output level 0.7 V nus at 47 kfl
Recommended load impedance over 10 k9

9-879-268-02
2005A16-1
o 2005.01

Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporatlcn

' Rated current: 1 A

Operating temperature
5°C - 35°C (41°F ~ 95°F)

Dimensions (w/lI/d) (excluding proiectinu parts
and controls)
Approx11315 X 17.1 X 13512 mm(5 V. X Za X S 7. in.)

US and foreign patents licensed from Dolby
Laboratoriesl

Design and specifications are subject to change
Wuhan: notice.

PORTABLE CD PLAYER

SONYE

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D-N E820/N E820 LS

CAUTION

' INVISIBLE LASER RADIATION
WHEN OPEN

' DO NOT STARE INTO BEAM OR
VIEW DIRECTLY WITH OPTICAL
INSTRUNHENTS

' CLASS 1M INVISIBLE LASER
RADIATION WHEN OPEN

- DO NOT VIEW DIRECTLY WITH
OPTICAL DISTRUMENTS

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

Flexible Circuit Board Repairing
- Keep the temperature of the soldering iron around 270 °C
during repairing.
I Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
I Be careful not to apply force on the conductor when soldering
or unsoldering.

Notes on chip component replacement
I Never reuse a disconnected chip component.
I Notice that the minus side of a tantalum capacitor may be
damaged by heat.

0n Ac power adaptor

- Use only the AC power adaptor supplied.
If your CD player is not supplied with the
one, use the AC-E30HG AC power
adaptor. Do not use any other AC power
adaptor. It may cause a malfunction.

Polarity at the plan

(9&6

Do not touch the AC power adapter with
wet hands.

Connect the AC power adaptor to an easily
accessible AC outlet. Should you notice an
abnormality in the AC power adaptor,
disconnect it from the AC outlet
immediately.

SAFETY-RELATED COMPONENT WARNINGII

COMPONENTS IDENTIFIED BY MARK A OR DOTT ED LINE
WITH MARK A ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHONN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

2

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead

free mark (LF) indicating the solder contains no lead.

(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)

L7 : LEAD FREE MARK
Unleaded solder has the following characteristics.

- Unleaded solder melts at a temperature about 40 C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
C Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
C Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also he added to ordinary solder.

To clean the terminals
If the terminals on the charging stand become
dirty, the battery may not be charged properly.
Clean the terminals with a cotton swab or a
dry cloth periodically as illustrated below.