Sony D-NE900LS Service Manual
D-NE900/NE900LS
SERVICE MANUAL
Ver 1.3 2004.10
Photo : BLACK
SPECIFICATIONS
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 770 - 800 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance
of 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
D-A conversion
1-bit quartz time-axis control
Frequency response
20 - 20 000 Hz
Output (at 3 V input level)
Line output (stereo minijack)
Output level 0.7 V rms at 47 kΩ
Recommended load impedance over 10 kΩ
Headphones (stereo minijack)
Approx. 5 mW + Approx. 5 mW at 16 Ω
(Approx. 1.5 mW + Approx. 1.5 mW at 16 Ω)*
*For the customers in Europe
Optical digital output (optical output connector)
Output level: –21 - –15 dBm
Wavelength: 630 - 690 nm at peak level
Power requirements
• Sony NH-14WM rechargeable battery: 1.2 V
DC × 1
• LR6 (size AA) battery: 1.5 V DC × 1
•AC power adaptor (DC IN 3 V jack)
+1
dB (measured by JEITA)
–2
Battery life*1 (approx. hours)
When you use the CD player on a flat and stable
surface.
When LIGHT mode and SOUND mode are set to
“OFF.”
Playing time varies depending on how the CD
player is used.
When using one NH-14WM (charged for about
2
)
5 hours*
G-PROTECTION
“G-PRO 1” “G-PRO 2”
Audio CD 20 20
ATRAC CD*
MP3 CD*
When using external battery case (one
alkaline battery*5)
Audio CD 30 30
ATRAC CD*
MP3 CD*
3
4
4
35 35
28 28
G-PROTECTION
“G-PRO 1” “G-PRO 2”
3
50 50
40 40
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Tourist Model
Korea Model
Chinese Model
D-NE900LS
Model Name Using Similar Mechanism D-NE1
CD Mechanism Type CDM-3325ER2
Optical Pick-up Name DAX-25E
When using one NH-14WM and external
battery case (one alkaline battery*5)
G-PROTECTION
“G-PRO 1” “G-PRO 2”
Audio CD 50 50
ATRAC CD*
MP3 CD*
*1 Measured value by the standard of JEITA (Japan
Electronics and Information Technology
Industries Association)
*2 Charging time varies depending on how the
rechargeable battery is used.
*3 Recorded at 48 kbps
*4 Recorded at 128 kbps
*5 When using Sony alkaline battery LR6 (SG)
(produced in Japan)
3
4
80 80
70 70
— Continued on next page —
D-NE900
9-961-344-04
2004J16-1
© 2004.10
PORTABLE CD PLAYER
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
D-NE900/NE900LS
Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding
projecting parts and controls)
Approx. 127 × 21.8 × 139.4 mm
7
⁄8× 5 1⁄2in.)
(5 ×
Mass (excluding accessories)
Approx. 168 g (6.0 oz.)
Supplied accessories
AC power adaptor (1)
Remote control (1)
Rechargeable battery (1)
Charging Stand (1)
Battery carrying case (1)
Carrying porch (1)
External battery case (1)
CD-ROM (SonicStage Simple Burner) (1)
User's guide for SonicStage Simple Burner (1)
Operating instruction
Headphones (1) (for US model)
Earphones (1) (for other models)
US and foreign patents licensed from Dolby
Laboratories.
Design and specifications are subject to change
without notice.
TABLE OF CONTENTS
1. SERVICING NOTE ·························································· 4
2. GENERAL ·········································································· 6
3. DISASSEMBLY
3-1. UPPER LID ASSY························································ 8
3-2. SUB BOARD ································································ 9
3-3. CABINET (INNER)···················································· 10
3-4. MAIN BOARD, CD MECHANISM DECK
(CDM-3325ER2)························································· 11
3-5. TURN TABLE MOTOR ASSY (M901),
SLED MOTOR ASSY (M902),
OPTICAL PICK-UP (DAX-25E)································ 12
4. ELECTRICAL CHECKING········································· 13
5. DIAGRAMS······································································ 14
5-1. BLOCK DIAGRAM
– MAIN SECTION-1 – ··············································· 15
– MAIN SECTION-2 – ··············································· 16
– POWER SECTION – ··············································· 17
5-2. PRINTED WIRING BOARD
– MAIN BOARD (SIDE A) – ····································· 18
5-3. PRINTED WIRING BOARD
– MAIN BOARD (SIDE B) – ····································· 19
5-4. SCHEMATIC DIAGRAMS
– MAIN BOARD (1/4) –············································· 20
5-5. SCHEMATIC DIAGRAMS
– MAIN BOARD (2/4) –············································· 21
5-6. SCHEMATIC DIAGRAMS
– MAIN BOARD (3/4) –············································· 22
5-7. SCHEMATIC DIAGRAMS
– MAIN BOARD (4/4) –············································· 23
5-8. PRINTED WIRING BOARD – SUB BOARD
(CHINESE AND KOREAN MODELS) – ·················· 24
5-9. SCHEMATIC DIAGRAMS – SUB BOARD
(CHINESE AND KOREAN MODELS) – ·················· 25
5-10.PRINTED WIRING BOARD – SUB BOARD
(
EXCEPT CHINESE AND KOREAN MODELS
5-11.SCHEMATIC DIAGRAMS – SUB BOARD
(
EXCEPT CHINESE AND KOREAN MODELS
5-12.IC PIN FUNCTION DESCRIPTIONS ······················· 29
) –·········· 26
) –·········· 27
6. EXPLODED VIEWS
6-1. CABINET (UPPER) SECTION·································· 34
6-2. CABINET (LOWER) SECTION································35
6-3. CD MECHANISM SECTION (CDM-3325ER2) ·······36
7. ELECTRICAL PARTS LIST······································· 37
2
D-NE900/NE900LS
CAUTION
• INVISIBLE LASER RADIATION
WHEN OPEN
• DO NOT STARE INTO BEAM OR
VIEW DIRECTLY WITH OPTICAL
INSTRUMENTS
• CLASS 1M INVISIBLE LASER
RADIATION WHEN OPEN
• DO NOT VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS
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.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
•Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
Unleaded solder
Boards requiring use of unleaded solder are printed with the leadfree 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.)
: 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!
• Strong viscosity
Unleaded solder is more viscous (sticky , less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
On 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 of the plug
•Do not touch the AC power adaptor 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 WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 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 SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY .
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
3
D-NE900/NE900LS
2
p
SECTION 1
SERVICING NOTE
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S812. (push switch type)
The following checking method for the laser diode is operable.
• Method:
Emission of the laser diode is visually checked.
1. Remove the upper lid. (Please refer to disassembly.)
2. With a disc not set, turn on the S812 with a screwdriv er having a
thin tip as shown in Fig.1.
3. Press the u button.
4. Observing the objective lens, check that the laser diode emits
light.
When the laser diode does not emit light, automatic power control
circuit or optical pickup is faulty.
In this operation, the objective lens will move up and down 4
times along with inward motion for the focus search.
BEFORE REPLACING THE OPTICAL PICK-UP BLOCK
Please be sure to check thoroughly the parameters as par the “Optical
Pick-Up Block Checking Procedures” (Part No.: 9-960-027-11)
issued separately before replacing the optical pick-up block.
Note and specifications required to check are given below.
• FOK output: IC601 yg pin
When checking FOK, remove the lead wire to disc motor.
• RF signal P-to-P value: 0.45 to 0.65 Vp-p
MAIN BOARD (SIDE B)
IC601
IC601 FOK
output
yg
S81
Fig. 1 Method to push the S812
4
D-NE900/NE900LS
SERVICE MODE
The following confirmation can be performed when the Service
Mode is set.
1. How to set the Service Mode.
To set the Service Mode, the following method is available.
1) Confirm the set is not powered on.
2) Confirm the following settings.
OPEN/CLOSE detect switch (S812) ........ OFF
Solder Land (SL812) ................................ OPEN
[HOLD] switch (S802)............................... OFF
3) Short the solder land SL805 (TEST) on the MAIN board.
4) Turn on the main power.
MAIN BOARD (SIDE B)
SL805 (TEST)
2. Operation when the Service Mode is set.
When the Service Mode becomes active, following messages are
displayed onthe remote control LCD.
Microcomputer
version display
1) Turn off the power.
2) Open the solder land SL805 (TEST) on the MAIN board.
Note : The solder should be removed clean.
VP073 :
SL812 (OPEN)
S812
5
D-NE900/NE900LS
5
Locating the controls
CD player
SECTION 2
GENERAL
This section is extracted
from instruction manual.
6
1
2
3
4
1 Display
2 OPERATION lamp
Color of the lamp changes according to
the type of music source being played.
Red: Audio CD, Green: ATRAC3plus/
ATRAC3 file, Orange: MP3 file
For some time after the CD is inserted,
the lamp lights up in red, orange and
green in turn.
This lamp also functions as the HOLD
lamp and the CHG (charge) lamp.
3
( group) – button
4 i (headphones)/LINE OUT (OPTICAL)
jack
Switch the function of the jack, using the
menu.
5 VOL (volume) +
6
(group) + button
7 HOLD switch (rear)
Slide the switch in the direction of the
arrow to disable the buttons on the CD
player.
8 Jog dial
Use to select a group, a
file, play mode, etc. The
search direction changes
according to the direction
in which the jog dial is turned.
*1
/–buttons
7
8
9
q;
qa
9 5-way control key
u: play/pause
.:AMS
>:AMS/fast forward
x/CHG: stop/charge
DISPLAY/MENU: Use to
DISPLAY/
MENU
Push the control key toward u, >,
. or x/CHG with your finger on
DISPLAY/MENU.
q; OPEN switch
Squeeze the switch from both sides.
qa Terminals for the charging stand/external
battery case
*1 The button has a tactile dot.
*2 Automatic Music Sensor
select menu items and enter
the selection.
*2
/rewind
(Continued)
6
Remote control
For details, see the pages in parentheses.
D-NE900/NE900LS
1
2
3
4
5
1 VOL (volume) +/– control
Turn to adjust the volume.
2 x (stop) button
3 Jog lever (.u/ENT >)
u (play/pause)/ENT (enter):
Press during stop to start play, and press
during play to pause play. When
selecting menu items, press to enter the
selection.
Flick toward . or >: AMS, rewind,
fast forward
4 Display
5
( group) +/– buttons
6
7
8
9
q;
6 Clip
7 HOLD switch
Slide the switch in the direction of the
arrow (a yellow mark appears) to disable
the buttons on the remote control.
8 DISPLAY button
9 P MODE/
q; SOUND button
Note
Use only the supplied remote control. You cannot
operate this CD player with the remote control
supplied with other CD players.
button
7
D-NE900/NE900LS
DISASSEMBLY
Note : Disassemble the unit in the order as shown below.
SET
SECTION 3
UPPER LID ASSY
SUB BOARD
CABINET (INNER)
Note : Follow the disassembly procedure in the numerical order given.
3-1. UPPER LID ASSY
1
two screws
3
bracket(hinge L)
TURN TABLE MOTOR ASSY (M901),
SLED MOTOR ASSY (M902),
OPTICAL PICK-UP (DAX-25E)
2
bracket(hinge R)
MAIN BOARD,
CD MECHANISM DECK
(CDM-3325ER2)
upper lid assy
7
5
4
Close the cover until the tip of the cover of the
top cover assembly is left open by 5 mm,
then slide the top cover assembly in the
direction of the arrow.
6
8
y
3-2. SUB BOARD
3
flexible flat cable (CN2002)
1
six screws
4
2
cover guide
SUB board
D-NE900/NE900LS
5
button
6
upper lid ass
9
D-NE900/NE900LS
3-3. CABINET (INNER)
spring (lock claw)
lock claw (R) lock claw (L)
2
spring (lock claw)
3
lock claw (L)
4
lock claw (R)
1
eight screws
6
cabinet (inner)
5
spring (upper lid)
battery terminal board (+)
Note: It is recommended to visually check that the battery terminal board (+) is
installed in the specified position after assembling the cabinet (INNER)
because, in some cases, the battery terminal board (+) cannot be housed
when assembling the cabinet (INNER).
10
1
connector (2pin)
qg
guide (A)
qh
knob (hold)
2
connector (4pin)
3
spacer
5
three insulator
spacer
7
flexible flat cable
4
flexible board (CN604)
9
battery terminal board (+)
qf
screw
8
Remove two solders of the MAIN board.
0
Remove two solders of the MAIN board.
qa
battery terminal board (-)
qd
MAIN board
6
CD mechanism deck
(CDM-3325ER2)
qs
static electricity incorrect operation
prevention earth
3-4. MAIN BOARD, CD MECHANISM DECK (CDM-3325ER2)
D-NE900/NE900LS
11
D-NE900/NE900LS
3-5. TURN TABLE MOTOR ASSY (M901), SLED MOTOR ASSY (M902), OPTICAL PICK-UP (DAX-25E)
1
three screws
(B1.7x4)
4
optical pick-up
(DAX-25E)
2
gear cover
5
three screws
(B1.7x4)
3
sled motor assy (M902)
6
turn table motor assy (M901)
12
e
RF level
0.45 to 0.65 Vp-p
SECTION 4
ELECTRICAL CHECKING
D-NE900/NE900LS
The CD section adjustments are done automatically in this set.
In case of operation check, confirm that RF level.
Precautions for Check
1. Perform check in the order given.
2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise
indicated.
3. Power supply voltage requirement : DC3.0V in terminals for
the charging stand (J401, J402).
VOLUME button : Minimum
AVLS switch : OFF
HOLD switch : OFF
G-PROTECTION switch : 1
Checking Location:
– MAIN board (Side A) –
RF Level Check
Condition:
• Hold the set in horizontal state.
Connection:
Oscilloscop
(AC range)
MAIN board
2 k
TP649 (RF)
TP701 (AGND)
Ω
+
–
Procedure:
1. Connect the oscilloscope to the test points TP649 (RF) and
TP701 (AGND) on the MAIN board.
2. Set a disc. (YEDS-18)
3. Press the u button.
4. Check the oscilloscope waveform is as shown below.
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
RF Signal reference Waveform (Eye Pattern)
VOLT/DIV : 100 mV (With the 10:1 probe in use)
TIME/DIV : 500 ns
TP649(RF)
CN604
15
TP701(AGND)
1
To watch the eye pattern, set the oscilloscope to AC range and
increase the vertical sensitivity of the oscilloscope for easy watching.
5. Stop revolving of the disc motor by pressing the x button.
13
D-NE900/NE900LS
SECTION 5
DIAGRAMS
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
• MAIN board is multi-layer printed board. However, the patterns of intermediate-layer have not been included in the diagram.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or
less are not indicated except for electrolytics and tantalums.
• All resistors are in Ω and 1/
•%: indicates tolerance.
• C : panel designation.
Note:
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
• A : B+ Line.
•Total current is measured with CD installed.
•Power voltage is dc 3.0 V and fed with regulated dc power supply
from terminals for the charging stand (J401, J402).
•Voltages and waveforms are dc with respect to ground in playback
mode.
no mark : CD PLAY
* : Impossible to measure
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage var iations may be noted due to normal production tolerances.
•Waveforms are taken with a oscilloscope.
Voltage var iations may be noted due to normal production tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J : CD PLAY (ANALOG OUT)
c : CD PLAY (OPTICAL OUT)
•Abbreviation
CH : Chinese model.
EE : East European model.
KR : Korean model.
4
W or less unless otherwise specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
• WA VEFORMS
1
IC601 if RFAC
100mV/DIV, 400ns/DIV
540 mVp-p
5
IC702 e; XTAL
1V/DIV, 20ns/DIV
2.8 Vp-p
44ns
2
IC601 rk XTAO
1V/DIV, 20ns/DIV
59ns
2.7 Vp-p
3
IC801 wk XIN
1V/DIV, 40ns/DIV
118ns
2.1 Vp-p
4
IC401 5 SYNC
1V/DIV, 2us/DIV
5.7us
2.2 Vp-p
14
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