Sony DNF-400, DNF-401 Service manual

D-NF400/NF401

SERVICE MANUAL

Ver. 1.3 2005.06

Photo: D-NF400

US and foreign patents licensed from Dolby Laboratories.

•OpenMG, A TRAC, A TRAC3, A TRAC3plus, 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 Corporation.

• Microsoft, Windo ws, W indows NT ar e trademarks or registered trademarks of Microsoft Corporation in theUnited States and/or other countries.

• IBM and PC/AT are registered trademarks of International Business Machines Corporation.

• Macintosh is a trademark of Apple Computer , Inc. in the United States and/ or other countries.

•Pentium is a trademark or a registered trademark of Intel Corporation.

• Adobe and Acrobat Reader are trademarks of Adobe Systems Incorporated.

• All other trademarks are trademarks of their respective owners. ™ and ® marks are omitted in this manual.

US Model

Canadian Model

AEP Model

UK Model

Australian Model

E Model

D-NF400/NF401

Model Name Using Similar Mechanism NEW CD Mechanism Type CDM-3325ER2

Optical Pick-up Name DAX-25E

SPECIFICATIONS

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

Output (at 4.5 V 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

+1−2

dB (measured by JEITA)

D-NF400

9-961-446-04 Sony Corporation

– Continued on next page –

FM/AM PORTABLE CD PLAYER

D-NF400/NF401

Ver 1.1

Radio

Frequency range z AEP, UK, EE models

FM: 87.5 - 108.0 MHz AM: 531 - 1 602 kHz

z E13 (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

z E13 (D-NF400), PH, 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

z US, 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

General

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* MP3 CD* 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

2

3

80 80 62 62

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

3

1

(5

× 1

8

× 5

4

3

in.)

8

Mass (excluding accessories)

Approx. 195 g (6.9 oz.)

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.

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 PH : Philippines model

Antenna

FM: Headphones/earphones cord antenna AM: Built-in ferrite bar antenna

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 MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.

2

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS 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 PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

D-NF400/NF401

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 Digital Audio. It is a recording standard used for the AudioCDs.

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-3325ER2)..................... 39

8. ELECTRICAL PARTS LIST ............................... 40

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 other AC power adaptor. It may cause a malfunction.

Polarity of the plug

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 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.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

3

D-NF400/NF401

SECTION 1

SERVICING NOTES

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 pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objectiv e lens.

• In performing the repair with the power supplied to the set, removing 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.

– MAIN Board (Conductor Side) –

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

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. W ith a disc not set, turn on the S820 with a screwdri ver having

a thin tip as shown in Fig.1.

3. Push the

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.

N X button.

SL825

(OPEN)

detection lever

S820

MAIN board

Fig. 1 Method to push the S804

4

System requirements

The following hardware and software specifications are required in order to use the SonicStage Simple Burner software.

D-NF400/NF401

Computer IBM PC/AT or Compatible

Operating System Factory installed:

Display High Color (16 bit) or higher, 800 × 600 dots or better

Others ¥ Internet access: for Web registration and CDDB* services

¥ 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

Windows XP Home Edition/Windows XP Professional/Windows Millennium Edition/Windows 2000 Professional/Windows 98 Second Edition

¥ Adobe Acrobat Reader installed for viewing the PDF manual

WDM)

¥ Sound Board

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.

5

D-NF400/NF401

Locating the controls

CD player

SECTION 2

GENERAL

This section is extracted from instruction manual.

1 Operation button

*1

u

/ENTER: play/pause/ enter .: AMS in a preset station >: AMS/fast forward/ tune in a preset station

V/v

play mode, etc.

2 x (stop)•RADIO OFF button

( group) –•TUNE – button

3

( group) +•TUNE + button

4 5 DISPLAY/MENU button

Use to enter the menu. Also use to enter the selection as well as u/ENTER.

6 i (headphones) jack

*2

/rewind/tune

: Use to select a file,

7 RADIO 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.

8 Display 9 DC IN 4.5 V (external power input) jack 0 VOL (volume) + 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

*1

/– buttons

6

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

D-NF400/NF401

SECTION 3

DISASSEMBLY

3-2. CABINET (LOWER) SECTION

(Page 7)

3-3. OPTICAL PICK-UP ASSY (CDM-3325ER2)

(Page 8)

3-4. MAIN BOARD

(Page 8)

Note: Follow the disassembly procedure in the numerical order given.

3-2. CABINET (LOWER) SECTION

3-5. LIQUID CRYSTAL DISPLAY PANEL (LCD2001),

SWITCH BOARD (Page 9)

2

two screws

7

flexible flat (20core) cable (CN801)

5

two claws

6

5

claw

3

Open the battery lid.

4

five screws

1

Open the cabinet (upper) section.

8

cabinet (lower) section

5

two claws

7

D-NF400/NF401

)

3-3. OPTICAL PICK-UP ASSY (CDM-3325ER2)

5

insulator

4

OP flexible board (CN601)

5

insulator

3

1

spacer

6

optical pick-up assy (CDM-3325ER2)

2

two connectors (CN401, CN402

5

insulator

3-4. MAIN BOARD

2

MAIN board

1

S810 Note : On installation of main board,

adjust the position of switch (S810) and knob (hold).

knob (hold)

8

3-5. LIQUID CRYSTAL DISPLAY PANEL (LCD2001), SWITCH BOARD

d

2

eight screws

D-NF400/NF401

4

Open the cover.

3

claw

1

Open the cabinet (upper) section.

6

liquid crystal display panel (LCD2001) (CN2001)

8

SWITCH boar

5

flexible flat (20core) cable (CN2002)

3

claw

9

cover

3

claw

7

sheet (color)

9

D-NF400/NF401

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 display, 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.

– MAIN Board (Conductor Side) –

SL824

(TEST)

10

SECTION 5

p

r

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 µF

MAIN board TP (FM ANT)

MAIN board

i

jack (J301)

ELECTRICAL CHECK

D-NF400/NF401

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. Use YEDS-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:

– MAIN Board (Conductor Side) –

Focus Bias Check

Condition:

• Hold the set in horizontal state.

Connection:

MAIN board

TP601 (RF) TP498 (MAIN_GND)

2 k

Ω

oscilloscope

(AC range)

+ –

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

TUNER SECTION 0 dB=1 µV

[AM]

Setting:

Band switch: AM

AM RF signal

generator

30% amplitude modulation by 400 Hz signal Output level: as low as possible

[FM]

Setting:

Band switch: FM

Put the lead-wire antenna close to the set.

set

level mete

32

Ω

MAIN board

i

jack (J301)

( ): 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)

TP498

(MAIN_GND)

TP601

(RF)

RF level

0.45 to 0.65 Vp-

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.

digital voltmeter

MAIN board

TP8 (VT) TP498 (MAIN_GND)

100 k

Ω

•Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.

– MAIN Board (Conductor Side) –– MAIN Board (Component Side) –

TP8 (VT)

L1 FM Tracking

L3

AM T rac king

CT3

Adjustment

TP428

(MAIN_GND)

Adjustment

L5 TV T rac king

Adjustment

D-NF400: US, Canadian models

1111

D-NF400/NF401

6-1. BLOCK DIAGRAM – MAIN Section –

SECTION 6

DIAGRAMS

OPTICAL PICK-UP BLOCK

DAX-25E

DETECTOR

LASER

DIODE

LD

PD

FOCUS

COIL

TRACKING

COIL

OPSTB

OPGSW

M

M902

(SLED)

V

U

W

M901

(SPINDLE)

• SIGNAL PATH

: CD PLAY : MP3 PLAY : FM

FM ANT

TU-L

A

PC0

38

18

SDCLK_O

PC3

42

17

SDXLAT_O

TU-R

TU MUTE

67

EEP_CS_O

AD_DCINMNT

95

4

3

2

1

IC803

EEPROM

DO

DI

SK

CS

77

56

AUD_SEL_O

AD_BATMNT

92

VIN

6

BEEP_O

PWRSW

D320

TU BEEP

TU VOL

TU BASS1

TU BASS2

B

(Page 13)

HOLD

OPEN

40

37

HOLD_I

LID-SW_I

XRESET_I

30

XWAKE_O 32 WAKEUP37

VCPU

AVD

CD DSP

IC601

AOUT1

51

AOUT2

56

84

RF

A

B

E

F

X601

12

HG-XSTB_O

13

HG-GUP_O

16.934MHz

10

FG_I

90

LD

PD

F+

F-

T+

T-

S+

S-

COM

U

V

W

AUTOMATIC

POWER

CONTROL

Q601

COIL/MOTOR DRIVE

IC403(1/2)

31

PWG

32

INM4

FO3

RO3

FO2

RO2

FO1

RO1

UI

VI

WI

COM

U

V

W

APWM

DATA

CLOK

44

42

48

46

52

50

79

78

77

80

2

4

6

60FI3

RI3

59

FI2

58

RI2

57

56FI1

55RI1

73

34SYNC

70XBRK

39

38

40LATCH

FG

74

RFAC

88

RFDC

92

A

91

B

89

E

90

F

47

XTAI

48

XTAO

96

FFDR

95

FRDR

98

TFDR

97

TRDR

100

SFDR

99

SRDR

103

MDP

104

C176

102

MDS

SENS

CLOK

XLAT

SDTO

21

20

23

22

83

87

85

XLAT0_O

MSDTI0_I

PWRLAT_O84MSDTO0_O

MSCK0_O

27

86

SCOR_I

SCOR

65

52

FOK

32

28

FOK_I

R8M

XIN

69

53

GFS

28

GFS_I

XRST

4

XRST_O

XSOE

24

88

XSOE_O

LRMU

PCMD_O

LRCK_O

BCK_O

PCMD_I

LRCK_I

BCK_I

SYSM

25

7

AMUTE_O

D0

D3

A0

A10

XWE

XCAS

XRAS

XRDE

61

4 .

3 .

6 .

5

116 113

.

17

15

.

13

11

.

117

2

9

1

108

106

110

109

107

111

18

D-RAM

IC603

2 .

D0

3 .

D3

24

.

25

9

12

.

A0

15

A10

19

.

21

. 8

4

XWE

23

XCAS

5

XRAS

4

1

2

15

14

13

12

X701

22MHz

SYSTEM CONTROLLER

29

30

IC801(1/2)

PCMD

LRCK

BCK

PI0

PI2

PI3

PF4

EXTAL

XTAL

33

60

MP3 DECODER

IC701

PF0

NRST

PC1

PF3

34

37

40

66

11

20

REQ_I

SDIN_I

XKRESET

WAKEUP_K_O

TU_DCINMNT

(Page 13)

PC2

41

19

SDOUT_O

INPUT SELECT, ELECTRICAL VOLUME

33

TU-L_I

35

TU-R_I

32

CD-L_I

36

CD-R_I

1

MUTE-SW_I

44

IN-SEL

31

STB_HPSW_I

3

BEEP_I

14

VOL-CTL_I

26

BASS-SW

25

BASS-H/L-SW

VCC1

VCC2

SL801

VCC0

IC702

IC302

POWER-L_O

CENTER-AMP

POWER-R_O

10

L7

17

VCC1

18

VCC2

RSTB35

19

VCPU

16

VLGO2

20

VCC0

7

6

5

IC403(2/2)

POWER CONTROL

L5

VD4

VD5

VIN

BATM2

DC IN

(OPEN/CLOSE DETECT)

8

1

5

12

69

62RF1

61

S820

J301

ON

S810

HOLD.

OFF

VIN

DRY BATTRY

SIZE "AA"

(IEC DESIGNATION LR6)

2PCS 3V

D401

RIPPLE FILTER

Q408

D402

J401

DC IN 4.5V

C

(Page 13)

BATMNT

4.5V

VCC3

11

VCC3

+1.4V

REGULATOR

IC806

VCPU

1212

6-2. BLOCK DIAGRAM – TUNER Section –

D-NF400/NF401

Ver 1.1

FM ANT

AM FERRITE-BAR

Q3

NF400 : US, CND/ NF401 : E92, MX

• SIGNAL PATH

: FM : 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 PH : Philippines model

CT3, L3

AM TRACKING

L3

ANTENNA

D3

CT3

D1

D2

D5

(NF400 : US, CND)

NF400 : AEP, UK, EE, E13, PH, AUS/ NF401 : E13

DC/DC

CONVERTER

Q86, T81

LOW-PASS

FILTER

Q84, 85

FL1

BPF

FM RF

TV/FM OSC

L4

AM OSC

(NF400 : US, CND)

L1

FM TRACKING

L2

L5

TV RF

TV TRACKING

B+ SWITCH

Q40, 41

2

1

28

29

27

24

30

25

14

FM-RF_I

TV-RF_I

AM_BP

FM-RF_O

AM-RF_I

FM/TVOSC

TV-RF_O

AMOSC

LPF

VCPU

FM RF AMP, FM/AM MIX AMP, FM/AM OSC,

FM-MIX_O

AM-MIX_O

QUAD

MODE1

DET_O

MODE2

OSC_O

IF-COUNT_O

REQ-SW

FM/AM IF AMP, FM/AM DET, MPX

4

5

11

21

12

22

23

19

20

B+ SWITCH

Q4,11

IC1

CF2

CF1

X1

Q8

V IN

10

8

FM-IF_I

AM-IF_I

Q71

L_O

R_O

16

TU-L

A

(Page 12)

15

X61

75kHz

DTS MICRO CONTROLLER

IC3

TUMUTE-O

53

BAND-CTRL1-O

23

RE1

52

BAND-CTRL2-O

71

TV/FM/AM_I

64

IF_I

CDU-SDO_O

60

+B ON/OFF_O

61

IF-REQ_O

MONO/LOCAL-

55

CTR_O

65

EO(D01)_O

75

X_I

74

X_O

CDU-SDI_I

CDU-SCK_I

ACK-CD_O

LCD-REQ_I

TUBEEP_O

XTU-BASS1-O

XTU-BASS2-O

VOL-PWM_O

TU HOLD_I

XLID-OPEN_I

EEP-CS_O

CS_O

AO_O

CD-ON_I

RESET_I

TU-ON_O

62

32

27

26

47

46

48

54

28

39

73

38

42AD-KEY_I

37KEY2

49

58

59

50

51

29

43BATT-I

44 HIDC-I

EEPROM

IC62

1CS

DI

3

DO

4

SK

2

SYSTEM CONTROLLER

IC801(2/2)

22

DTS_SDTI

21

DTS_SDTO

23

DTS_SCK

35

ACKCD_I

16

LCDREQ_O

55

CDON_O

59

DTS_RST-O

68

TUON_I

LCD-XRST_O 73 RES

96

AD_KEY1

97

AD_KEY2

WAKE_I

36

TU_POWERON_O

LCD_AO

AD0

AD5

XRD_O 71

XWR_O 72 WR

XCS_O

TU-R

TU MUTE

69

50

AD6

51

AD7

44

49

61 PS

VCPU

54

CS A0

D6

D7

D0

D5

RD

TU BEEP

TU BASS1

TU BASS2

TU_VOL

HOLD

OPEN

BATMNTT

TU_DCINMNT

LIQUD CRYSTAL DISPLAY LCD2001

(Page 12)

B

C

S2001 - 2005

FUNCTION

KEY

S806, 809, 2007 - 2011

FUNCTION

KEY

KEY2

KEY1

TU_VCC V IN

Q802

B+ SWITCH

Q10, 12

1313

D-NF400/NF401

2.8 Vp-p

118

µ

s

1.0 Vp-p

13.3 µs

Ver 1.1

6-3. 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.

z

•

• : 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 (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.

: Through hole.

f

: Internal component.

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/ specified.

f

•

• C : panel designation.

• A : B+ Line.

• H : adjustment for repair.

•Power voltage is dc 4.5 V and fed with regulated dc power

•Voltages and waveforms are dc with respect to ground in

•Voltages are taken with a VOM (Input impedance 10 MΩ).

•Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

• Abbreviation

: Internal component.

Note:

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

supply from DC IN jack (J401). no-signal conditions.

no mark : CD PLAY 〈〈 〉〉 : MP3 PLAY ( ): FM []: AM

Voltage variations may be noted due to normal production tolerances.

J : CD PLAY d : MP3 PLAY F : FM f : AM

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 PH : Philippines model

: Impossible to measure

∗

4

W or less unless otherwise

Note:

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

•Waveforms – MAIN Board –

1 IC601 w; (CLOK)

1.9 µs

2 IC601 es (R8M)

119 µs

3 IC601 rk (XTAO)

59

4 IC601 if (RFAC)

6 IC403 ef (SYNC)

2.0 Vp-p

2.1 Vp-p

5.7

7 IC801 wk (XIN)

8 IC3 uf (X_O)

µ

s

2.0 Vp-p

1.4 Vp-p

µ

s

9 Q86 Collector (tuner mode)

5 IC601 <z/v (C176)

5.7 µs

Approx. 600 mVp-p

191 ns

q; IC701 e; (XTAL) (MP3 play mode)

2.0 Vp-p

44.2 ns

3.8 Vp-p

1.6 Vp-p

1414

6-4. SCHEMATIC DIAGRAM – MAIN Board (1/7) – • See page 14 for Waveforms. • See page 29 for IC Pin Function Description.

D-NF400/NF401

CN601

15P

OPGSW

A

B

RF

OPSTB

LD

PD

AGND

VCC

E

F

F+

T-

T+

F-

(1/7)

MDS

FB601

X601

16.934MHz

R611

C621

6.3V

0

CD DSP

CXD3048R

47

IC601

FB402

LRCKO

R612

47

R609

0

L602 47µH

R606

0

A1

A2

A3

C623

PCMDO

LRCKI

PCMDI

0

1

BCKI

BCKO

R8M

FB602

R614

10k

A10

A0

C697

C618

0.1

VDR603

VDR602

R648

R613

10k

A4

A5

A6

A7

A8

A9

XCAS

D2

D3

D0

D1

XWE

XRAS

22k

C629

0.1

R649

0

XRST

SCOR

R645R643

00

R642

R641

R640

R639

R638

SYSM

XSOE

0

XLAT

0

SENS

0

DATA

0

CLDK

0

C606

1000p

L603 10µH

A0

A1

A2

D-RAM

IC603

MSM51X17400F

-10TFSR1

C622

10

6.3V

VCC

VSS

A3

A3A2A1

A5

A4

A10

A0

A10

A9

A8A7A6A5A4

A8

A7

A6

A9

D0

D1

XWE

XRAS

0

647

R644

R

D1

D0

XWE

XRAS

XOE

VCCVSS

D3

D2

XCAS

0

651 R

D3

D2

XCAS

C624

1

C619

22

6.3V

OPGSW

OPSTB

F+

T-

T+

F-

C631

6.3V

C632

L601

Q601

2SB16790

AUTOMATIC

CONTROL

R670

4.7k

POWER

R608

C610

R610

10

100k

6.3V

A

B

RF

E

F

C607

4700p

C608

22

C698

0.1

R646

2.2

47 4V

RF

0

E

F

B

A

FB401

0

R622 R623

TP601

(RF)

R603SL601 R602

22k 22k

SL602

R618

2.2k

C605

0.1

10k

R621

0.47

1M 220k

0.47 10k

C609 R624

100p

C612

470k

R625

R626C613

02200p

R663 100k

22k

R604

22k

R605

C616 C617 470p 470p

FOK

GFS

R619

2.2k

C699C614R629R662R628 R630

0.122p47k47k22k 47k

R632 R633 C601 C611 100k 100k 470p 470p

FFDR

FRDR

TFDR

TRDR

SFDR

SRDR

R607

0

A1

A2

A3

A4

D1

D2

D3

(Page 16)

(Page 21)

C1

10

B1

B2

B3

B4

B5

B6

B7

B8

11

B9

B

13

B12

B

(Page 19)

(Page 18)

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

1515

Sony DNF-400, DNF-401 Service manual

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

3-1. DISASSEMBLY FLOW

DISASSEMBLY

3-2. CABINET (LOWER) SECTION

3-4. MAIN BOARD

3-5. LIQUID CRYSTAL DISPLAY PANEL (LCD2001), SWITCH BOARD

TEST MODE

ELECTRICAL CHECK

6-1. BLOCK DIAGRAM – MAIN Section –

DIAGRAMS

6-2. BLOCK DIAGRAM – TUNER Section –

6-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

6-4. SCHEMATIC DIAGRAM – MAIN Board (1/7) – • See page 14 for Waveforms. • See page 29 for IC Pin Function Description.