Sony D-NF400 - ATRAC Walkman Portable CD Player User manual

SERVICE MANUAL
Ver 1.0 2003.12
SPECIFICATIONS
FM/AM PORTABLE CD PLAYER
D-NF400/NF401
US Model
Canadian Model
AEP Model
UK Model
Australian Model
D-NF400
E Model
D-NF400/NF401
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM-3325ER
Optical Pick-up Name DAX-25E
CD player
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 +1
−2dB (measured by JEITA)
Output (at 4.5V input level)
Headphones (stereo minijack)
Approx. 5 mW + Approx. 5 mW at 16 Ω
(Approx. 1.5 mW + Approx. 1.5 mW at 16 Ω)*
*AEP model
9-961-446-01 Sony Corporation
2003L05-1 Personal Audio Company
C2003.12 Published by Sony Engineering Corporation
US and foreign patents licensed from Dolby Laboratories.
•OpenMG,ATRAC,ATRAC3,ATRAC3plus,SonicStage,SonicStage Simple
Burner and their logos aretrademarks of Sony Corporation.
•“WALKMAN” is a registered trademark of Sony Corporation to represent
Headphone Stereo products. is a trademark of Sony Corpo-
ration.
•Microsoft, Windows,Windows NT are trademarks or registered trademarks
of Microsoft Corporation in theUnited States and/or other countries.
•IBM and PC/AT are registered trademarks of International Business Ma-
chines Corporation.
•Macintosh is a trademark ofApple Computer, Inc. in the United States and/
or other countries.
•Pentium is a trademark or a registered trademark of Intel Corporation.
•Adobe andAcrobat Reader are trademarks ofAdobe Systems Incorporated.
•All other trademarks are trademarks of their respective owners. ™ and ®
marks are omitted in this manual.
– Continued on next page –
Photo: D-NF400
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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2
D-NF400/NF401
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED
LINE WITH MARK 0ON 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 PUB-
LISHED BY SONY.
Radio
Frequency range
zAEP, UK, EE models
FM: 87.5 - 108.0 MHz
AM: 531 - 1 602 kHz
zE13 (D-NF401), E92 models
•9 kHz step:
FM: 87.5 - 108.0 MHz
AM: 531 - 1 710 kHz
•10 kHz step:
FM: 87.5 - 108.0 MHz
AM: 530 - 1 710 kHz
zE13 (D-NF400), AUS, MX models
•9 kHz step:
FM: 87.5 - 108.0 MHz
AM: 531 - 1 602 kHz
•10 kHz step:
FM: 87.5 - 108.0 MHz
AM: 530 - 1 710 kHz
zUS, CND models
•9 kHz step:
TV: 2 - 13 ch
WB (weather band): 1 - 7 ch
FM: 87.5 - 108.0 MHz
AM: 531 - 1 710 kHz
•10 kHz step:
TV: 2 - 13 ch
WB (weather band): 1 - 7 ch
FM: 87.5 - 108.0 MHz
AM: 530 - 1 710 kHz
Antenna
FM: Headphones/earphones cord antenna
AM: Built-in ferrite bar antenna
General
Supplied accessories
AC power adaptor (1) (except US, CND models)
Headphones (1) (US model)
Earphones (1) (except US model)
CD-ROM* (SonicStage Simple Burner) (1)
User s guide for SonicStage Simple Burner (1)
* Do not play a CD-ROM on an audio CD player.
Power requirements
• Two LR6 (size AA) batteries: 1.5 V DC ⋅2
• AC power adaptor (DC IN 4.5 V jack):
120 V, 60 Hz (US, CND, E92 and MX models)
240 V, 50 Hz (AUS model)
100 - 240 V, 50/60 Hz (Other models)
Battery life*
1
(approx. hours)
When you use the CD player on a flat and stable
surface.
When SOUND mode is set to OFF.
Playing time varies depending on how the CD
player is used.
When using two Sony alkaline batteries
LR6 (SG) (produced in Japan)
G-PROTECTION
“G-PRO 1” “G-PRO 2”
Audio CD 50 45
ATRAC CD*
2
80 80
MP3 CD*
3
62 62
RADIO ON 75
*1 Measured value by the standard of JEITA (Japan
Electronics and Information Technology
Industries Association)
*2 Recorded at 48 kbps
*3 Recorded at 128 kbps
Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (excluding
projecting parts and controls)
Approx. 135.8 ×30.7 ×135.8 mm
(5
38
×1
14
×5
38
in.)
Mass (excluding accessories)
Approx. 195 g (6.9 oz.)
Design and specifications are subject to change
without notice.
•Abbreviation
AUS : Australian model
CND: Canadian model
E13 : 220 - 230 V AC area in E model
E92 : 120 V AC area in E model
EE : East European model
MX : Mexican model
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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3
D-NF400/NF401
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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.
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 4
2. GENERAL ................................................................... 6
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 7
3-2. Cabinet (Lower) Section ................................................. 7
3-3. Optical Pick-up Assy (CDM-3325ER) ........................... 8
3-4. MAIN Board ................................................................... 8
3-5. Liquid Crystal Display Panel (LCD2001),
SWITCH Board............................................................... 9
4. TEST MODE ............................................................... 10
5. ELECTIRICAL CHECK .......................................... 11
6. DIAGRAMS
6-1. Block Diagram – MAIN Section – ................................ 12
6-2. Block Diagram – TUNER Section – ............................. 13
6-3. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 14
6-4. Schematic Diagram – MAIN Board (1/7) ..................... 15
6-5. Schematic Diagram – MAIN Board (2/7) ..................... 16
6-6. Schematic Diagram – MAIN Board (3/7) ..................... 17
6-7. Schematic Diagram – MAIN Board (4/7) ..................... 18
6-8. Schematic Diagram – MAIN Board (5/7) ..................... 19
6-9. Schematic Diagram – MAIN Board (6/7) ..................... 20
6-10. Schematic Diagram – MAIN Board (7/7) ..................... 21
6-11. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 22
6-12. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 23
6-13. Printed Wiring Board – SWITCH Board – ................... 24
6-14. Schematic Diagram – SWITCH Board – ...................... 25
7. EXPLODED VIEWS
7-1. Cabinet (Inner) Section ................................................... 36
7-2. Cabinet (Upper) Section ................................................. 37
7-3. Cabinet (Lower) Section ................................................. 38
7-4. Optical Pick-up Section (CDM-3325ER)....................... 39
8. ELECTRICAL PARTS LIST ............................... 40
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
On AC power adaptor
•Use only the AC power adaptor supplied.
If your CD player is not supplied with the
one, use the AC-E45HG AC power
adaptor. Do not use any otherAC power
adaptor. It may cause a malfunction.
Polarity of the plug
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
About CD-Rs/RWs
This CD player can play CD-Rs/RWs recorded in the ATRAC3plus/
ATRAC3, MP3 or CDDA*format, but playback capability may
vary depending on the quality of the disc and the conditionof the
recording device.
*CDDA is the abbreviation for Compact Disc DigitalAudio. It is
a recording standard used for the AudioCDs.
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)
: 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 viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges oc-
cur 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.
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4
D-NF400/NF401 SECTION 1
SERVICING NOTES
The laser diode in the optical pick-up block may suffer electro-
static 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
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
BEFORE REPLACINGTHE OPTICAL PICK-UP BLOCK
Please be sure to check thoroughly the parameters as par the “Op-
tical 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
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 S820. (push switch type)
The following checking method for the laser diode is operable.
•Method:
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. With a disc not set, turn on the S820 with a screwdriver having
a thin tip as shown in Fig.1.
3. Push the N X 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.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
Fig. 1 Method to push the S804
S820
detection lever
detection lever
MAIN board
•In performing the repair with the power supplied to the set, re-
moving the MAIN board causes the set to be disabled.
In such a case, make a solder bridge to short SL825 (OPEN/
CLOSE DETECT) on the MAIN board in advance.
SL825
(OPEN)
– MAIN Board (Conductor Side) –
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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5
D-NF400/NF401
System requirements
The following hardware and software specifications are required in order to use the SonicStage
Simple Burner software.
Computer IBM PC/AT or Compatible
¥CPU: Pentium II 300 MHz or higher (Pentium III 600 MHz or higher is
recommended.)
¥ Hard disk drive space: System folder (on boot disc) — 200 MB or more/
Temporary folder — 200 MB or more (The amount of free space
required differs according to the size of the audio files that you want to
handle. 1.5 GB of free space or more is recommended.)
¥RAM: 64 MB or more (128 MB or more is recommended)
Others ¥ CD-R/RW drive (capable of digital playback by
WDM)
¥Sound Board
Operating System Factory installed:
Windows XP Home Edition/Windows XP Professional/Windows
Millennium Edition/Windows 2000 Professional/Windows 98 Second
Edition
Display High Color (16 bit) or higher, 800 ×600 dots or better
Others ¥ Internet access: for Web registration and CDDB
*
services
¥Adobe Acrobat Reader installed for viewing the PDF manual
This software is not supported by the following environments:
¥NEC PC-98 series or compatible machines, Macintosh systems
¥Windows XP versions other than Home Edition or Professional
¥Windows 2000 versions other than Professional
¥Windows 98 versions other than Second Edition
¥Windows NT
¥Windows 95
¥Personally constructed PCs or operating systems
¥ An environment that is an upgrade of the original manufacturer-installed operating system
¥Multi-boot environment
¥Multi-monitor environment
Notes
¥We do not ensure trouble-free operation on all computers that satisfy the system requirements.
¥We do not ensure trouble-free operation of the system suspend, sleep, or hibernation function on all
computers.
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6
D-NF400/NF401 SECTION 2
GENERAL This section is extracted from
instruction manual.
Locating the controls
CD player
1Operation button
u*1/ENTER: play/pause/
enter
.: AMS*2/rewind/tune
in a preset station
>: AMS/fast forward/
tune in a preset station
V / v : Use to select a file,
play mode, etc.
2x(stop)•RADIO OFF button
3( group) –•TUNE – button
4( group) +•TUNE + button
5DISPLAY/MENU button
Use to enter the menu. Also use to enter
the selection as well as u/ENTER.
6i(headphones) jack
7RADIO ON/BAND•MEMORY button
RADIO ON: Press to turn on the radio.
BAND: Press to change the band.
MEMORY: Press and hold to preset
stations.
8Display
9DC IN 4.5 V (external power input) jack
0VOL (volume) +*1/–buttons
qa OPEN switch
Slide the switch to open the CD player
lid.
qs HOLD switch (rear)
Slide the switch in the direction of the
arrow to disable the buttons on the CD
player.
*1 The button has a tactile dot.
*2 Automatic Music Sensor
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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D-NF400/NF401
7
SECTION 3
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
3-2. CABINET (LOWER) SECTION
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
3-2. CABINET (LOWER) SECTION
(Page 7)
3-3. OPTICAL PICK-UP ASSY (CDM-3325ER)
(Page 8)
3-5. LIQUID CRYSTAL DISPLAY PANEL (LCD2001),
SWITCH BOARD
(Page 9)
SET
3-4. MAIN BOARD
(Page 8)
4 five screws
5 claw
5 two claws
2 two screws
7 flexible flat (20core) cable
(CN801)
1 Open the cabinet (upper) section.
8 cabinet (lower) section
3 Open the battery lid.
5 two claws
6
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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D-NF400/NF401
8
3-3. OPTICAL PICK-UP ASSY (CDM-3325ER)
3-4. MAIN BOARD
3 OP flexible board
(CN601)
5 optical pick-up assy
(CDM-3325ER)
4 insulator
4 insulator
4 insulator
2
1 two connectors
(CN401, CN402
)
2 MAIN board
1
Note : On installation of main board,
adjust the position of switch
(S810) and knob (hold).
knob (hold)
S810
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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D-NF400/NF401
9
3-5. LIQUID CRYSTAL DISPLAY PANEL (LCD2001), SWITCH BOARD
2 eight screws
1 Open the cabinet (upper) section.
3 claw
7 sheet
9 cover
8 SWITCH boar
d
6 liquid crystal display panel (LCD2001)
(CN2001)
5 flexible flat (20core) cable
(CN2002)
4 Open the cover.
3 claw
3 claw
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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D-NF400/NF401
10
SECTION 4
TEST MODE
In the test mode, this set can check the microcomputer version
and liquid crystal display.
1) Short SL824 (TEST) on the MAIN board with a solder bridge.
Then, turn on the power.
2) microcomputer version is displayed on the liquid crystal dis-
play, and the liquid crystal display is all lighted.
3) turn off the power and open the solder bridge on SL824 (TEST)
on the MAIN board.
Note: Remove the solders completely. Remaining could be shorted with
the chassis, etc.
SL824
(TEST)
– MAIN Board (Conductor Side) –
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D-NF400/NF401
1111
SECTION 5
ELECTRICAL CHECK
CD SECTION
The CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
Precautions for Check
1. Perform check in the order given.
2. UseYEDS-18 disc (Part No.: 3-702-101-01) unless otherwise
indicated.
3. Power supply voltage requirement: DC4.5 V in DC IN jack.
(J401)
HOLD switch : OFF
Connecting and Checking Location:
Focus Bias Check
Condition:
• Hold the set in horizontal state.
Connection:
Procedure:
1. Connect the oscilloscope to the test points TP601 (RF) and
TP498 (GND) on the MAIN board.
2. Set a disc. (YEDS-18)
3. Push the N X 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
To watch the eye pattern, set the oscilloscope to AC range and
increasethe vertical sensitivityoftheoscilloscope foreasywatch-
ing.
5. Stop revolving of the disc motor by pressing the xbutton.
oscilloscope
(AC range)
+
–
MAIN board
TP601 (RF)
TP498 (MAIN_GND)
2 k
Ω
RF level
0.45 to 0.65 Vp-
p
TP601
(RF)
TP498
(MAIN_GND)
– MAIN Board (Conductor Side) –
TUNER SECTION 0 dB=1 µV
[AM]
Setting:
Band switch: AM
[FM]
Setting:
Band switch: FM
•Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level: as low as possible
Put the lead-wire
antenna close to
the set.
+
–
level mete
r
set
32 Ω
MAIN board
i jack (J301)
FM RF signal
generator
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
+
–
level meter
set
32 Ω
0.01 µ F
MAIN board
TP (FM ANT)
MAIN board
i jack (J301)
digital voltmeter
100 k Ω
TP8 (VT)
TP498 (MAIN_GND)
MAIN board
( ): AEP, UK, East European, E, Australian Models
AM FREQUENCY COVERAGE CONFIRMATION
Adjustment Part Frequency Display Reading on Digital Voltmeter
Confirmation 530 (531) kHz 1.0 ±0.5 V
Confirmation 1,710 (1,602) kHz 7.3 ±1.0 (6.8 ±1.0) V
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L3 620 kHz
CT3 1400 kHz
( ): AEP, UK, East European, E, Australian Models
FM FREQUENCY COVERAGE CONFIRMATION
Adjustment Part Frequency Display Reading on Digital Voltmeter
Confirmation 87.5 (108.0) MHz 5.1 ±0.5 (8.7 ±0.5) V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1 98.0 MHz
TV TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L5 ch10/97.75 MHz
(D-NF400: US, Canadian models only)
TP428
(MAIN_GND)
L3
CT3 AM Tracking Adjustment
– MAIN Board (Conductor Side) –– MAIN Board (Component Side) –
TP8
(VT)
D-NF400: US,
Canadian models
L1 FM Tracking
Adjustment
L5 TV Tracking
Adjustment
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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D-NF400/NF401
1212
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – MAIN Section –
V
UW
• SIGNAL PATH
: CD PLAY
: MP3 PLAY
: FM
LASER
DIODE
PD
LD
M
FOCUS
COIL
TRACKING
COIL
M902
(SLED)
(SPINDLE)
M901
F+
F-
T+
T-
S+
S-
SYSTEM CONTROLLER
IC801(1/2)
DRY BATTRY
SIZE "AA"
(IEC DESIGNATION LR6)
2PCS 3V
LD
DETECTOR
COIL/MOTOR DRIVE
IC403(1/2)
RF
A
E
B
F
PWG
31
INM4
32
FO3
44
PD
RO3
42
FO2
48
RO2
46
FO1
52
RO1
50
COM COM
80
WW
6
VV
4
UU
2
56FI1
55RI1
60FI3
59
RI3
58
FI2
57
RI2
70XBRK
73
APWM
34SYNC
39
DATA
38
CLOK
40LATCH
74
FG
CD DSP
IC601
MP3 DECODER
IC701
EEPROM
IC803
RFDC
88
RFAC
84
A
92
B
91
E
89
F
90
X601
16.934MHz
47
XTAO
XTAI
48
SFDR
100
SRDR
99
FFDR
96
FRDR
95
TFDR
98
TRDR
97
MDP
103
C176
104
MDS
102
SDTO
21
CLOK
20
XLAT
23
SENS
22
SCOR
27
FOK
65
R8M
32
GFS
69
XRST
28
D0
D3
A0
A10
XRAS
5
D-RAM
IC603
2
XWE
9
XCAS
1
XRAS
A0
A10
2
3
24
25
.
.
.
XWE
4
XCAS
23
BCK
2
PCMD_O
LRCK_O
BCK_O
PCMD
4
LRCK
1
SK
2
CS
1
XRESET_I 30
DO
4
DI
3
PI3
13
PCMD_I
LRCK_I
BCK_I
PF4
12
18
XRDE
PI0
15
PI2
14
D0
D3
17
15
13
.
11
.
116
113
.
117
9
12
15
.
19
21
.
8
.
51
AOUT1
56
AOUT2
61
LRMU
FM ANT
TU-R
TU-L
A
B
TU VOL
TU BEEP
TU BASS1
CD-L_I
32
CD-R_I
36
MUTE-SW_I
D320
1
STB_HPSW_I
31
BEEP_I
3
INPUT SELECT, ELECTRICAL VOLUME
IC302
TU-L_I
33
TU-R_I
35
IN-SEL
44
VOL-CTL_I
14
BASS-SW
26
BASS-H/L-SW
25
7
POWER-L_O
6
CENTER-AMP
5
POWER-R_O
TU BASS2
DC IN 4.5V
J401
J301
10
FG_I
90
PWRLAT_O
84
MSDTO0_O
83
MSCK0_O
87
XLAT0_O
85
MSDTI0_I
86
SCOR_I
52
FOK_I
28
XIN
53
GFS_I
4
XRST_O
77
PWRSW
56
AUD_SEL_O
6
BEEP_O
RIPPLE
FILTER
Q408
POWER CONTROL
IC403(2/2)
12
VIN
VIN
5
VD5
1
VD4
8
L5
69
BATM2
62RF1
61
DC IN
VCC2
18
VCPU
19
VCC2
VCPU
SL801
VCC1
AD_DCINMNT
95
AD_BATMNT
92
VIN
4.5V
BATMNT
C
OPSTB
OPGSW
4
3
6
5
.
.
.
XSOE
24
88
XSOE_O
SYSM
25
7
AMUTE_O
NRST
33
PF0
34
PF3
37
PC1
40
PC2
41
60
XKRESET
66
WAKEUP_K_O
11
REQ_I
20
SDIN_I
19
SDOUT_O
PC0
38
18
SDCLK_O
PC3
42
17
SDXLAT_O
67
EEP_CS_O
TU MUTE
TU_DCINMNT
HG-XSTB_O
12
HG-GUP_O
13
VCC1
17
VCC3
AVD
IC702
VCC3
11
VCC0 VLGO2
16
VCC0
20
L7
10
RSTB35
XWAKE_O 32 WAKEUP37
D401
VCPU
D402
UI
79
VI
78
WI
77
X701
22MHz
29
XTAL
EXTAL
30
108
106
110
109
107
111
+1.4V
(OPEN/CLOSE DETECT)
S820
HOLD
40
HOLD_I
37
LID-SW_I
OPEN
ON
OFF
HOLD.
S810
OPTICAL PICK-UP BLOCK
DAX-25E
(Page 13)
(Page 13)
(Page 13)
AUTOMATIC
POWER
CONTROL
Q601
+1.4V
REGULATOR
IC806
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

D-NF400/NF401
1313
6-2. BLOCK DIAGRAM –TUNER Section –
FM RF
L1
TV/FM OSC
L2
ANTENNA
AM FERRITE-BAR
L3
CT3
AM OSC
L4
CONVERTER
DC/DC
Q86, T81
D1
2FM-RF_I
L_O
10
FM RF AMP, FM/AM MIX AMP, FM/AM OSC,
FM/AM IF AMP, FM/AM DET, MPX
IC1
CF1
16
R_O 15
FM-IF_I
X61
75kHz
IC3
DTS MICRO CONTROLLER
24 FM/TVOSC
25 AMOSC
FM-MIX_O 48
CF2
AM-IF_I
MODE1 21
DET_O 12
QUAD 11
X1 62
TUMUTE-O
FM-RF_O
29
BAND-CTRL1-O
53
RE1
23
14 LPF
MODE2 22
B+ SWITCH
B+ SWITCH
Q4,11 V IN
BAND-CTRL2-O
52
+B ON/OFF_O
60
MONO/LOCAL-
CTR_O
55
EO(D01)_O
65
X_O
74
X_I
75
3DI
4DO
2SK
1CS
EEPROM
IC62
47
CDU-SDO_O
26
AO_O
32
EEP-CS_O
27
CS_O
IC801(2/2)
SYSTEM CONTROLLER
46
CDU-SDI_I
48
CDU-SCK_I
54
ACK-CD_O ACKCD_I
35
28
LCD-REQ_I LCDREQ_O
16
39
CD-ON_I CDON_O
55
DTS_SDTI
22
DTS_SDTO
21
DTS_SCK
23
73
RESET_I DTS_RST-O
59
51
38
TU-ON_O TUON_I
D6
D7
D0
D5
CS
A0
68
AD_KEY1
96
50
VOL-PWM_O
58
XTU-BASS1-O
59
XTU-BASS2-O
49
TUBEEP_O
44HIDC-I
44
49
AD0
AD5
FM ANT
TU-L
TU-R
TU MUTE
A
C
TU_VOL
TU BASS1
TU_DCINMNT
43BATT-I BATMNTT
TU BASS2
TU BEEP
B
HOLD
D3
D2
1TV-RF_I
BPF
FL1
(NF400 : US, CND)
(NF400 : US, CND)
AM-RF_I
27
AM_BP
28 AM-MIX_O 5
IF-COUNT_O 19
IF_I
64
OSC_O 23 TV/FM/AM_I
71
IF-REQ_O
61
Q71
Q3
Q8
TV RF
L5 30 TV-RF_O
D5
Q40, 41
LOW-PASS
FILTER
Q84, 85
VCPU
TU_POWERON_O
Abbreviation
AUS : Australian model
CND : Canadian model
E13 : 220-230 V AC area in E model
E92 :120 V AC area in E model
EE : East European model
MX : Mexican model
54
LCD_AO 69
AD7 51
AD6 50
XRD_O 71
42AD-KEY_I
WAKE_I
36
37KEY2
TU_VCC V IN
Q802
AD_KEY2
97
TU HOLD_I
RD
XWR_O 72 WR
LCD-XRST_O 73 RES
XCS_O
VCPU
61 PS
29
XLID-OPEN_I OPEN
NF400 : US, CND/
NF401 : E92, MX
LIQUD
CRYSTAL
DISPLAY
LCD2001
S2001 - 2005
FUNCTION
KEY
S806, 809, 2007 - 2011
FUNCTION
KEY
KEY2
KEY1
B+ SWITCH
Q10, 12
REQ-SW 20
• SIGNAL PATH
: FM
: AM
NF400 : AEP, UK, EE, E13, AUS/
NF401 : E13
CT3, L3
AM TRACKING
FM TRACKING
TV TRACKING
(Page 12)
(Page 12)
(Page 12)
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

D-NF400/NF401
1414
2.8 Vp-p
118 us
2.0 Vp-p
5.7
µ s
Approx.
600 mVp-p
1.4 Vp-p
59 us
2IC601 es (R8M)
2.1 Vp-p
119 us
2.0 Vp-p
1.9
µ s
Note on Printed Wiring Board
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•z: Through hole.
•f: Internal component.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Partsonthepattern faceside seenfrom
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
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 Ωand 1/4W or less unless otherwise
specified.
•f: Internal component.
•C: panel designation.
•A: B+ Line.
•H: adjustment for repair.
•Powervoltage is dc 4.5V and fedwithregulateddcpower
supply from DC IN jack (J401).
•Voltages and waveforms are dc with respect to ground in
no-signal conditions.
no mark :CD PLAY
〈〈 〉〉 : MP3 PLAY
( ):FM
[]:AM
∗: Impossible to measure
•Voltages are takenwithaVOM(Inputimpedance10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
J: CD PLAY
d: MP3 PLAY
F: FM
f: AM
•Abbreviation
AUS:Australian model
CND : Canadian model
E13 : 220 - 230 V AC area in E model
E92 : 120 V AC area in E model
EE : East European model
MX : Mexican model
6-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
3IC601 rk (XTAO)
4IC601 if (RFAC)
5IC601 <z/v (C176)
6IC403 ef (SYNC)
7IC801 wk (XIN)
8IC3 uf (X_O)
1.0 Vp-p
13.3
µ s
2.0 Vp-p
5.7
µ s
•Waveforms
– MAIN Board –
1IC601 w; (CLOK)
9Q86 Collector (tuner mode)
3.8 Vp-p
191 ns
Note:
The components identi-
fied by mark 0or dotted
line withmark 0arecriti-
cal for safety.
Replace only with part
number specified.
Note:
Lescomposantsidentifiéspar
une marque 0sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro
spécifié.
q; IC701 e; (XTAL) (MP3 play mode)
1.6 Vp-p
44.2 ns
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

D-NF400/NF401
1515
6-4. SCHEMATIC DIAGRAM – MAIN Board (1/7) – • See page 14 for Waveforms. •See page 29 for IC Pin Function Description.
The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replaceonlywithpartnumberspecified.
Lescomposantsidentifiéspar une marque 0sont
critiques pour la sécurité. Nelesremplacerque
par une pièce portant le numéro spécifié.
FB601 R609
C624
R612
C621
C619
R614
C697
VDR602
R648
C629
R649
R613
R638
R639
R640
R641
R642
C623
C622
R651
R644
R647
C606
L602
47µH
R606
C618
R619
R618
C605
C608
R622 R623
R621
C609 R624
C612
R625
R626C613
R632 R633 C601 C611
R604
R605
C616 C617
SL602
R645R643
VDR603
L603
10µH
R608
R610 C610
L601
IC601
R670
C632
C631
R646
FB401
C699C614R629R662R628 R630
FB402
FB602
TP601
C698
R607
Q601
C607
R611
X601
CN601
R663
IC603
R603SL601 R602
0
1
47
47
6.3V
22
6.3V
10k
0.1
22k
0.1
0
10k
0
0
0
0
0
1
10
6.3V
0
0
0
1000p
0
0.1
2.2k
2.2k
0.1
0.47
1M 220k
10k
0.47 10k
100p
470k
02200p
100k 100k 470p 470p
22k
22k
470p 470p
00
2.2
100k 10
6.3V
CXD3048R
4.7k
0.1
22
6.3V
0
0
0.122p47k47k22k 47k
0
(RF)
47
4V
0
2SB16790
4700p
0
16.934MHz
15P
100k
MSM51X17400F
-10TFSR1
22k 22k
A1
A2
A3
A4
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
C1
D1
D2
D3
A3
A2
A1
A0
A10
XRAS
XWE
D1
D0
A8
A7
A6
A5
A4
A9
XCAS
D2
D3
R8M
XRST
SYSM
XLAT
SENS
DATA
FOK
GFS
A4
A5
A6
A7
A8
A9
XCAS
D2
D3
D0
D1
XWE
XRAS
A3
A2
A1
A0
A10
LRCKO
LRCKI
PCMDI
BCKO
BCKI
PCMDO
MDS
SFDR
SRDR
TRDR
TFDR
FFDR
FRDR
RF
E
F
B
A
A
B
RF
E
F
CLDK
OPGSW
OPSTB
F+
F-
T-
T+
XSOE
SCOR
VCC
A3 A2 A1 A0
A10
XRAS
XWE
D1 D0
VCCVSS
D3 D2 XCAS XOE A9 A8 A7 A6 A5 A4 VSS
(1/7)
AUTOMATIC
POWER
CONTROL
CD DSP
D-RAM
F-
T+
T-
F+
F
E
VCC
AGND
PD
LD
OPSTB
RF
B
A
OPGSW
(Page 18)
(Page 19)
(Page 21)
(Page 16)
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

D-NF400/NF401
1616
6-5. SCHEMATIC DIAGRAM – MAIN Board (2/7) – • See page 26 for IC Block Diagram.
C221 R337
R324
D308
R301 R302
C321
L320
R145
R339
R245
C145
C341
C245
R338
R320
C336C335
C327
C320
C333 R333
D321
R122
C337
R325
C338
C326
R336
C325
R322
C323
C322
C324
R328 C330 C331 C332
IC302
C121R120
C329
FB302
C344
C343
C314
VDR201
VDR101
VDR301
J301
FB303
FB201
FB101
R121
R221
R335
R334
R220
D320
C328
C340
C342
C334
2.2 47k
100
MA147-TX
100k 47k
0.1
0
0
0
2200p
2200p
2200p
0
0
2.22.2
0.22
22 6.3V
10 6.3V 0
MA2ZD14001S
47k
100p
10k
470p
100p
10k
470p
2.2k
0.047
1
0.047
022
6.3V
22
6.3V
22
6.3V
AN17883
2.20
0.1
0.22
0.1
0.01
0
MA792WK-TX
22
6.3V
0.1
220
6.3V
0.01
A1
A2
A3
A4
E3
E2
E4
F1
F3
F4
TU_MUTE
TU_BEEP
FM_ANT
TU_BASS1
TU_BASS2
VOL_CTRL
TUNER-L
TUNER-R
AUD_SEL
BEEP
∗
∗
BASS_CTL
BASS_O
BASS-SW
BASS-T
BIAS_O
BIAS_I
RIPPLE-F
STB_HPSW_I
CD-L_I
TU-L_I
BASS-H/L-SW
PRE-GND
TU_R_I
CD_R_I
NC
LINE-L_I
LINE-R_I
VOL_L_I
VOL_R_I
TU-L-ATT
TU-R-ATT
IN-SEL
BASS_NF
MIX_O
AGC_SW
NC
NC
VCC1
VOL-BIAS
RIPPLE-F
VOL-CTL_I
NC
AVLS_SW
AVLS_I
AVLS_O
C-AMP_SW
POWER-GND
POWER-L_O
CENTER-AMP
POWER-R_O
VCC2
BEEP_I
MUTE_T
MUTE-SW-I
(2/7)
22k
47k
(EXCEPT NF400:AEP,UK,EE)
(NF400:AEP,UK,EE)
INPUT SELECT,
ELECTRICAL VOLUME
22k
47k
(EXCEPT NF400:AEP,UK,EE)
(NF400:AEP,UK,EE)
∗ R334,335
4.7k
10k
(NF400:AEP,UK,EE)
(EXCEPT NF400:AEP,UK,EE)
(Page 20)
(Page 15)
(Page 18) (Page 19)
(Page 17)
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

D-NF400/NF401
1717
6-6. SCHEMATIC DIAGRAM – MAIN Board (3/7) – • See page 26 for IC Block Diagram.
R21
R24
C34 C27
FB1
C11
C8
R7
C163
C15
C10
C4 C7
R5
C17
L5
R4
L1
C6
C16
C25
C19
C9
C160 R3
C26
R154
C20
R13 TAP1 C46
R18
C33
C42
C35
C32
C39 C165
C45
R15 L10
10µH
C40
C43C157C41
R12
C28
C31
C30 R66
R67
R1 R9
R29
R85
R84
Q85
C83
C82
R82
C80
C166
C24R8
CT3
C47
R80
R81 R162
C37C151C169
R6
IC1
R91
Q8
C38
C23
R16
Q3
FL1
L3
C13
L2
0.027µH
C153
C29
TP8
C81
CF2 CF1
C36
Q84
D3 L4
D5 D1
D2
X1
2.2k
1k
0.1 0.01
0
0.022
2200p
470k
10p
220p
100p
3p 10p
470k
0.01
470k
0.01
0.01
10
6.3V
0.01
100p
47p 10k
100p
10
0.47
0 1000p
0
0
0.022
470p
4.7
4V
0.022 0.01
220
4V
0
4.7 4V
0.470.0220.047
1k
0.01
1
1 4.7k
4.7k
47k 47k
47k
4.7k
470
2SK880GR-TE85L
100p
0.22
4.7k
0.01
10p
0.022470k
0.1
10k
0 22k
1000p1000p1000p
10k
TA2154FN(EL)
0
DTC144TUA-T106
4.7
4V
0.01
2.2k
2SC4154TP-1F
0.01
0.022
0.01
(VT)
1000p
0.01
2SC4154TP-1F
KV1610S
MA2S357 MA2S357
MA2S357
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
H2
H4
A_GND
FM_ANT
TUNER-L
TUNER-R
ANTENNA
AM OSC
TV
RF
RF
FM
TV-RF_O
FM-RF_O
FM-BP
AM-RF_I
RF-VCC
AM-OSC
FM/TV-OSC
OSC_O
MODE2
MODE1
REQ-SW
IF-COUNT_O
LPF2B
LPF2A
L_O
TV-RF_I
FM-RF_I
RF-GND
FM-MIX_O
AM-MIX_O
AGC
VCC
FM-IF_I
GND
AM-IF_I
QUAD
DET_O
MPX_I
LPF1
R_O
S
(3/7)
FM RF AMP,
FM/AM MIX AMP,
FM/AM IF AMP,
FM/AM OSC,
FM/AM DET,MPX
SWITCH
LOW-PASS
FILTER
Q84,85
SWITCH
AM
FERRITE-ROD,
(NF400:US,CND)
TV/FM
OSC
(NF400:AEP,UK,EE,E13,AUS/NF401:E13)
(NF400:US,CND/NF401:E92,MX)
(Page 16)
(Page 18)
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2
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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D-NF400/NF401
1818
6-7. SCHEMATIC DIAGRAM – MAIN Board (4/7) – • See page 14 for Waveform. •See page 26 for IC Block Diagram.
D421R452
R454
R416
C455 R459
R415
R453
R406
R414
C432
C434
L408
R498
L406
47µH
47µH
L409
L411
47µH
R419
C419
C420
C421
C422
C423
C404
R422
R424 R429
C438
C417 R418
R417
C460 VDR402
L401
C410
D402
R404
R491
R492
C424
C436
R428
C437
C425
FB413
L404
C450
L407
C429
R440
VDR405
C446
VDR404 C427
R427
R480 C440 R438
IC403
C403
C435
R448
C416
C406
C415 R413R411
R496
L403
R485
C433
R425
C458
R495
C405
R460
C428
C447
R486
C426
R412
C454
D422
D401
Q408
J401
M902
TP498
FB703
L414
L413
R490
CN402
CN401
C430
D403
VDR401
R487
R483
L402
4.7µH
4.7µH
MA111-TX220k
0
0
4700p 100k
470k
1M
2.2M
0
2204V
106.3V
0
47k
0.1
0.1
1000p
1000p
1000p
0.1
0
00
1
0.1 100k
100k
0.1 1
MA2YD2300LS0
22k
47k
47k
4.7
10V
10 6.3V
0
220
4V
47
6.3V
0
10.1
1M
1
0.1
100k
1M 2200p 10k
TB2138AFG
470p
47
6.3V
0
4.7
2.2
0.22 22k220k
0
0
1
0
1
0
1
100
4.7
16V
1000p
0
220
6.3V
47k
0.1
MA111-TX
MA2YD2300LS0
2SB164900LS
(MAIN GND)
0
0
220k
4P
2P
2200p
MA2YD2300LS0
0
0
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
E2
E3
E4
I1
I2
I3
I4
I5
I6
I7
I8
A_GND
BATMNT
VIN
D_GND
A_GND_TU
KJ_D_GND
TU_DCINMNT
MDS
F+
F-
T-
T+
FGBATMNT
DCINMNT
POWERLT
DATA
CLOK
XWAKEUP
SRDR
SFDR
TRDR
TFDR
FRDR
FFDR
RESET
(4/7)
COIL/MOTOR DRIVE,
POWER CONTROL
RIPPLE FILTER
DRY BATTERY
SIZE"AA"
2PCS. 3V
DC IN 4.5V
(SLED)
M901
V
U
W
(SPINDLE)
S+
S-
U
V
W
COM
(IEC DESIGNATION LR6)
220µH
220µH
100µH
(Page 20)
(Page 21)
(Page 19)
(Page 16)
(Page 17)
(Page 15)
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0 9 9
2
8 9
4 2
9 8
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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D-NF400/NF401
1919
6-8. SCHEMATIC DIAGRAM – MAIN Board (5/7) – • See page 14 for Waveform. •See page 29 for IC Pin Function Description.
@ When IC803 is damaged, replace the MAIN board.
R866
C896
R903
C898
R820
R809
R830R831
R827
Q801 R828
C57
C810
C821
IC806
R810
CN807
C833
C830
C834
C835
R972
R970
R935
R877
IC801
C812
SL801
R840
R806
R824
R802
S806
S809
R942
R805
R868
C899
CN801
C808
SL825 R875
S820
SL824
R881
R880
R971
R843
R817
C806
R813
R812
C897
R949
R801
C805
IC803
R878
S810
R826
D801
R886
10k
0.1
1k
0.1
0
0
470k1M
4.7k
XP4501-TXR 2.2M
0.1
1
0.1
XC6206P142WR
0
10P
4700p
4700p
4700p
4700p
10k
100k
100k
100k
TMP91CW28FG
0.1
10k
100k
0
2.2k
47k
100k
47k
0.1
20P
4700p
10k
0
0
0
0
0
0.1
10k
10k
1
100k
0
1
AK6417CH-E2
0
1M
MA728-TX
100k
C1
F1
F3
F4
I1
I2
I3
I4
I5
I6
I7
I8
J1
K1
K2
K3
OPEN
HOLD
LCD_REQ
DTS_SDTO
DTS_SI<AD7>
DTS_CK
ACKCD
AD_KEY1
AD_KEY2
TU_ON
CD_ON
NRST
DTS_RST
AD6
A-0
LCD_CS
SDCLK
SDIN
SDOUT
WAKEUP_K
REQ_I
TUPWRON
DATA
DATA
CLOK
CLOK
XWAKEUP
RESET
POWERLT
FG
OPSTB
OPGSW
HOLD
AD_KEY1
AD_KEY2
AD_KEY2
HOLD
OPEN
XRST
SYSM
SENS
SCOR
XLAT
XSOE
GFS
FOK
BEEP
AD_KEY1
AD_KEY1
AD_KEY2
LCD_REQ
LCD_REQ
AD_KEY1
DTS_SDTO
DTS_SI<AD7>
DTS_CK
DTS_SDTO
DTS_SI<AD7>
DTS_CK
ACKCD
ACKCD
AD_KEY2
AD_KEY1
CD_ON
NRST
DTS_RST
TU_ON
NRST
DTS_RST
AUD_SEL
CD_ON
TUPWRON
R8M
AD0
AD1
AD2
AD3
AD4
AD5
AD6
EEP_CS
EEP_CS
DTS_SI<AD7>
DTS_SI<AD7>
PS
A-0
A-0
RD
RD
WR
WR
LCDRST
LCDRST
AD0
AD1
AD2
AD3
AD4
AD5
AD6
REQ_I
SOCLK
SDOUT
SDOUT
SDIN
SDIN
SDIN
SDOUT
SDCLK
BATMN
DCINMNT
SDCLK
REQ_I
TUPWRON
TU_ON
DTS_SDTO
DTS_SI<AD7>
DTS_CK
OPEN
PS
NC
GND
GND
GND
VCPU
TXD21
RXD22
TCK23
RST30
BOOT78
8M28
ON
OFF
SGND
AD_KEY1
AD_KEY2
DGND
VCC2_2.7V
PS
VCPU_2.0V
D0
D1
D2
D3
D4
D5
D6
D7
LCDA0
RD
WR
LCD_CS
RES
XCEX_I
MSCK0_O
MSDTO0_O
MSDTI0_I
SCOR_I
XLAT0_O
XSOE_O
VCPU
PWRLAT_O
GND
AD-BATMNT
AD-CHGMNT
AD-CHGSTMNT
AD-DCINMNT
AD-KEY1
AD-KEY2
AD-RMKEY
VCPU
AD-KEY3
BOOT
XBAT_ICELL_I
NC
XLCD-4LINE_I
GND
GND
VCPU
FG_I
PWM_O
BEEP_O
LINEOUT_I
OPTOUT_I
REQ_I
HG-XSTB_O
HG-GUP_O
RE2_I
XRST_O
SDXLAT_O
SDCLK_O
DTS_SDTO
DTS_SDTI
DTS_SCK
AMO_I
VCPU
SDOUT_O
SDIN_I
AMUTE_O
RE1_I
LCDREQ_O
ACKCD_I
XOUT
GND
XIN
AM1_I
XRESET_I
TSB
XWAKE_O
EMU0_O
EMU1_O
LID-SW_I
EXTBAT_I
HOLD_I
TEST_I
AD0
AD2
AD3
AD4
AD5
AD6
AD1
WAKE_I
XLCD_CJK_I
XCE_CEL_I
AD7
FOK_I
GFS_I
CDON_O
AUD_SEL
DTS_RST_O
GND
XNMI_I
VCPU
WAKEUP_K_O
TUON_I
EEP_CS_O
OPTPWRCTL_O
HP_LIN_SEL_I
TUPWRON_O
CHGGND_ON_O
BAT_VCC_ON_O
XKRESET
XCS_O
XRD_O
XWR_O
LCD-XRST_O
XLCD-BL_O
LED_DISP1_O
DISP2_O
XLED_
(5/7)
(FOR CHECK)
+
-
VOL
(OPEN)
(OPEN/CLOSE DETECT)
EEPROM
(TEST)
(NF400:AUS)
SYSTEM CONTROLLER
I
O
+1.4V REGULATOR
(NF400:AEP,UK,EE)
-2-1
SWITCH
(NOT SUPPLIED)
D0
DI
CS
SK
VCC
GND
RESET
RDV/
BUSY
G
HOLD
(NF400:AEP,UK,EE)
PWRSW
LCD_AO
(Page 15)
(Page 18)
(Page 21)
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0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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http://www.xiaoyu163.com

D-NF400/NF401
2020
6-9. SCHEMATIC DIAGRAM – MAIN Board (6/7) – • See page 14 for Waveform. •See page 29 for IC Pin Function Description.
C72
R49
Q40
C170
C92
R50
R52
C62
R70
R72
C66
C69 C71 C54 VDR1
X61
C63C64C65 C158
C70 R62
R59
IC62
R42
C53
R76
R75
C168 C167
R47 R48
C59C58
R43
R40
R71
Q41
R63
R51
IC3
C50
R56R55
R53 R54
L62
Q71
C74
C56
R61
R73
TAP60
0.01
100k
DTC144TUA
1000p
1
10k
1k
1000p
0
470
1
22
6.3V 0.1 0.1 220K
75KHz
22p10p0.47 5p
0.01 100k
100k
AK93C55AV-L
470
1
470k
470k
1000p 1000p
4.7k 10k
10
6.3V
10
6.3V
1k
10k
100k
2SA1577-T106
100k
10k
TC9327AF-04CDW
0.1
220k
2SC3931-C-TX
0.01
0.01
10k
1k
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
J1
L1
L2
L3
HOLD
OPEN
AD_KEY2
AD_KEY1
DTS_RST
ACKCD
DTS_CK
DTS_SI<AD7>
DTS_SDTO
AD6
CD_ON
TU_ON
LCD_REQ
LCD_CS
A-0
TU_MUTE
TU_BASS1
TU_BASS2
TU_BEEP
TU_DCINMNT
BATMNT
VOL_CTRL
HOLD
HOLD
OPEN
OPEN
AD_KEY1
AD_KEY2 AD_KEY1
AD_KEY2
DTS_RST
DTS_RST
ACKCD
ACKCD
DTS_CK
DTS_SI<AD7>
DTS_SI<AD7>
DTS_SDTO
DTS_SDTO
DTS_CK
AD6
AD6
CD_ON
CD_ON
TU_ON
TU_ON
LCD_REQ
LCD_REQ
LCD_CS
LCD_CS
A-0
A-0
TU_MUTE
TU_MUTE
TU_BASS1
TU_BASS2
TU_BASS1
TU_BASS2
TU_BEEP
TU_BEEP
TU_DCINMNT
TU_DCINMNT
BATMNT
BATMNT
VOL_CTR
VOL_CTRL
∗∗
∗
CS VCC
SK
DI
DO
PE
NC
GND
IF-REQ_O
TU-MUTE_O
TEST
IF_I
ED(D01)_O
NC(D02)
HOLD_I
NC(FM_I)
NC(OT1)
GND
TV/FM/AM_I
VDD(1.8-2.2V)
RESET_I
X_O
X_I
VXT
XLCD
C1
C2
VEE
COM1
COM2
COM3
COM4
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
XTU-BASS2_O
XTU-BASS1_O
+B ON/OFF_O
XTU-TEST_I
S/W IDEN_I
-CTR_O
MONO/LOCAL
ACK-CD_O
BAND-CTL1_O
BAND-CTL2_O
TU-HOLD_I
VOL-PWM_O
TU-BEEP_O
CDU-SCK_I
CDU-SDO_O
CDU-SDI_I
AD-DC_REF
HIDC_I
BATT_I
AD-KEY1_I
TV-L-ON_O
TU-AVLS_O
CD-ON_I
TU-ON_O
KEY2
AD-KEY3_I
DEST
RM-KEY_I
EEP-CS_O
EEP DO/DI_IO
XLID-OPEN_I
LCD-REQ_I
CS_O
DESTVSS_O
MODEL2
RE1
RE2
MODEL1
EEP-SK_O
(6/7)
B+ SWITCH
B+ SWITCH
SWITCH
DTS MICRO CONTROLLER
EEPROM
(EXCEPT NF400:US,CND) (NF400:AUS)
∗ R53
100k
220k
∗
100k
220k
R55
47k
1M
(NF400:AEP,UK,EE)
(NF400:AUS)
(NF401:E92,MX)
∗
100k
220k
47k
(NF400:AEP,UK,EE)
(NF400:AUS)
(NF401:E92,MX)
R56
XL/_I
AO_O
(EXCEPT NF400:US,CND,E13/NF401:E13)
(NF400:AEP,UK,EE,E13/NF401:E13)
(NF400:US,CND,E13/NF401:E13)
(NF400:AUS/NF401:E92,MX)
(Page 19)
(Page 19)
(Page 19)
(Page 18)
(Page 16)
(Page 21)
(Page 17)
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1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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