D-NE300/NE300CK/NE301/NE301CK/NE306CK
TABLE OF CONTENTSNotes on chip component replacement
YNever reuse a disconnected chip component.
1.SERVICING NOTES...............................................3Y Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
2.GENERAL...................................................................4
YKeep the temperature of the soldering iron around 270 uC dur-
ing repairing.
3.DISASSEMBLY
Y Do not touch the soldering iron on the same conductor of the
3-1. Disassembly Flow ........................................................... 5
circuit board (within 3 times).
3-2. Cabinet (Lower) Section ................................................. 5
Y Be careful not to apply force on the conductor when soldering
3-3. Optical Pick-up Assy (CDM-3325ER) ........................... 6
or unsoldering.
3-4. MAIN Board ................................................................... 6
3-5. Liquid Crystal Display Panel (LCD2001),
SWITCH Board............................................................... 7CAUTION
Use of controls or adjustments or performance of procedures
4.TEST MODE..............................................................8other than those specified herein may result in hazardous ra-
diation exposure.
5.ELECTRICAL CHECK..........................................9
This appliance is classified as a CLASS 1 LASER product.
6.DIAGRAMS
The CLASS 1 LASER PRODUCT MARKING is located on
6-1. Block Diagram ................................................................ 10
the rear exterior.
6-2. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 11
6-3. Printed Wiring Board
� MAIN Board (Component Side) � .............................. 12
6-4. Printed Wiring Board
� MAIN Board (Conductor Side) � ................................ 13
6-5. Schematic Diagram � MAIN Board (1/4) � .................. 14
6-6. Schematic Diagram � MAIN Board (2/4) � .................. 15UNLEADED SOLDER
6-7. Schematic Diagram � MAIN Board (3/4) � .................. 16Boards requiring use of unleaded solder are printed with the lead-
6-8. Schematic Diagram � MAIN Board (4/4) � .................. 17free mark (LF) indicating the solder contains no lead.
6-9. Printed Wiring Board � SWITCH Board � ................... 18(Caution: Some printed circuit boards may not come printed with
6-10. Schematic Diagram � SWITCH Board � ...................... 19the lead free mark due to their particular size)
7.EXPLODED VIEWS
: LEAD FREE MARK
7-1. Cabinet (Inner) Section ................................................... 26
Unleaded solder has the following characteristics.
7-2. Cabinet (Upper) Section ................................................. 27
Y Unleaded solder melts at a temperature about 40 uC higher than
7-3. Cabinet (Lower) Section ................................................. 28
ordinary solder.
7-4. Optical Pick-up Section (CDM-3325ER)....................... 29
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
8.ELECTRICAL PARTS LIST...............................30
Soldering irons using a temperature regulator should be set to
about 350 uC.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
Y Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
On AC power adaptorthan ordinary solder so use caution not to let solder bridges oc-
Y Use only the AC power adaptor supplied.cur such as on IC pins, etc.
If your CD player is not supplied with theY Usable with ordinary solder
one, use the AC-E45HG AC power
It is best to use only unleaded solder but unleaded solder may
adaptor. Do not use any other AC power
also be added to ordinary solder.
adaptor. It may cause a malfunction.
About CD-Rs/RWs
Polarity of the plug
This CD player can play CD-Rs/RWs recorded in theATRAC3plus/ATRAC3, MP3 or CDDA*
format, but playback capability may vary depending on the quality of the disc and the condition
of the recording device.
* CDDA is the abbreviation for Compact Disc DigitalAudio. It is a recording standard used for theAudio
CDs.
ATTENTION AU COMPOSANT AYANT RAPPORT
SAFETY-RELATED COMPONENT WARNING!!� LA S?CURIT?!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLES COMPOSANTS IDENTIFI?S PAR UNE MARQUE 0
LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSSUR LES DIAGRAMMES SCH?MATIQUES ET LA LISTE
AND IN THE PARTS LIST ARE CRITICAL TO SAFE DES PIéCES SONT CRITIQUES POUR LA S?CURIT?
OPERATION. REPLACE THESE COMPONENTS WITHDE FONCTIONNEMENT. NE REMPLACER CES COM-
SONY PARTS WHOSE PART NUMBERS APPEAR ASPOSANTS QUE PAR DES PIéCES SONY DONT LES
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-NUM?ROS SONT DONN?S DANS CE MANUEL OU
LISHED BY SONY.DANS LES SUPPL?MENTS PUBLI?S PAR SONY.
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ACEC
