Sony NHF800 service manual Block Diagram Power Supply Section, CLK a

Page 23

MZ-NH700/NHF800

6-3. BLOCK DIAGRAM – POWER SUPPLY Section –

F

SDO0 SCK0

SDO0

58

DATA

CLK 63

SCK0

60

 

 

(Page 22)

SCK

64

SLEEP

XWK4

2

XWK2

4

59

STRB

XWK1, XWK2, XWK4

C (Page 22)

B

XRST2

34 XRST2

XWK1 5

WAKE UP SWITCH

(Page 22)

218 233 229

 

 

 

 

 

 

 

17

XRST1

RESET SIGNAL

 

 

VSTB

VCO2

VC01

VG

VC

 

GENERATOR

 

 

 

 

 

B+

B+

B+

B+

B+

VRMC 6

Q902

SLEEP PWR_IC _DET

IC902

3

XWK3

REC KEY

D (Page 22)

XRST2

XCS_

YUZU_

XRST 136

DACVREFH 141

MDVCC_CTL 204

RECP 181 RECP_MON 231

PWM_L1 299

PWM_L2 300

VBUS_DET 250 USBHOLD 316 SUSPEND 317

RST_CONT 132

VB_MON 121 VBUS_MON 129 HIDC_MON 127

 

 

B+ SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POWER CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

Q616, 617

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDO0 SCK0

 

 

 

 

 

 

 

 

IC901

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OR GATE

 

 

 

 

 

 

 

 

 

 

 

 

REGI1

55

DDC3 B+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC605

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

VOLTAGE

 

VOLTAGE

87

64

94

59 58

 

 

 

 

 

 

 

 

 

REGI2

52

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

DETECT

 

DETECT

 

RSTOUT

VBUSSEL2

SLEEPIN

DATA SCK

 

 

B+ SWITCH

 

 

 

 

 

REGI3

48

 

 

 

 

 

 

 

 

 

Q618

IC607

 

IC606

 

 

 

 

 

 

 

 

LVB

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REG4 B+

 

 

91 DVDD_OUT

 

 

 

 

RVDD

RVDD

 

 

 

12 VO1

VB

27

 

FCRAM_VDD

 

 

B+ SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q352, 353

 

 

 

 

10

VC1

 

 

 

REG5 B+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q901

 

 

 

 

 

 

 

 

 

VG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+1.2V

 

 

 

 

 

83

 

 

 

 

 

 

24

VG

LG

25

 

FFCLR

 

 

 

 

 

 

 

 

 

REGULATOR

 

 

 

 

TSBV_IN 101

 

 

 

 

 

 

 

 

L1

13

 

 

 

 

 

 

 

 

 

 

 

IC604

 

 

 

 

 

REG_IN

97

 

 

 

 

 

 

11

VCO1

 

 

 

D885

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L1

14

 

 

D884

 

 

 

 

 

 

 

 

 

 

 

 

DVDD_IN

90

 

 

 

 

 

 

40

VCO2

 

 

 

 

DC/DC

 

 

REG5 B+

 

98 REG_OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+2.1V

 

 

VB B+

 

D609

 

 

VSTB_IN

105

 

 

 

 

 

 

9

VSTB

L2

37

 

 

 

 

REGULATOR

 

CONVERTER

 

 

 

D610

 

 

 

VREF_IN

18

 

 

 

 

 

 

57

VREF

B+ SWITCH

DRAM_

 

 

IC882

 

 

IC881

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L2

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLTAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REG1 B+

 

 

 

 

Q901

HOLD_DET

 

 

 

 

 

 

 

VC B+

 

61 VIF

POWER CONTROL

 

 

 

 

 

 

54

REGO1

 

 

 

DETECT

 

 

 

 

 

 

 

 

 

VREC B+

 

 

 

 

DW_2T

43

 

 

 

 

 

 

 

 

 

 

 

13 VC

IC601 (2/2)

 

 

 

 

 

 

REG2 B+

51

REGO2

 

 

Q884

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DW_2B

44

 

 

 

 

 

 

 

 

 

 

 

14 VC

 

 

 

 

 

B+ SWITCH

 

 

 

REG3 B+

47

REGO3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VREC

112

MDVCC

 

 

 

 

DRAM_

REGULATOR

 

REGULATOR

 

 

 

 

 

 

 

 

 

Q502, 503

 

 

 

 

 

 

 

VDD_CLR

 

 

 

 

 

 

 

 

 

 

VREC_IN 80

 

 

 

 

 

 

 

 

 

 

 

 

REG5 VSTB B+

 

106 VSTB_OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

 

 

CONTROL

 

 

REG5 TSBV B+

 

102 TSBV_OUT

 

 

VREC_IN

81

 

 

 

 

 

 

 

 

 

 

 

 

Q883

D882

 

 

Q881

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B+ SWITCH

 

DRAM_ALONE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q614, 615

 

 

 

 

D883

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

67 RECP

 

 

VRECO_1

5

B+ SWITCH

 

 

 

 

 

 

B+ SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VRECO_2

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+1.2V

 

 

 

Q609

 

 

 

 

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REG F B+

 

REGULATOR

 

 

 

 

L1_1

7

 

 

 

 

 

 

+3.2V

 

Q613

 

 

VOLTAGE

 

 

 

 

 

 

 

 

 

IC602

 

 

 

 

 

 

 

B+ SWITCH

 

 

 

 

 

VBUS

 

E

(Page 22)

 

 

 

 

 

 

 

 

L1_2

6

 

 

 

REGULATOR

 

 

 

 

LIMITER

 

 

 

 

REG5 OSC B+

 

 

93 OSC_OUT

 

 

 

 

 

 

 

Q603

 

 

 

 

 

 

 

 

 

 

 

 

 

UP_1T

9

 

 

 

 

 

D611

IC603

 

 

 

 

Q451, 452

 

 

 

 

 

 

 

 

B+ SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB IF VDD

 

108 V33RO

 

 

 

UP_1B

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q801, 802

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DW_1T

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+2.5V

 

 

 

 

DW_1B

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REGULATOR

 

 

 

 

 

 

 

B+ SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC804

 

 

 

 

POWFB 46

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q611

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L1 B+

+3V

 

 

66 VG2

 

 

 

 

 

 

 

 

 

B+ SWITCH

 

 

 

 

 

VB B+

DC IN B+

 

 

 

 

L2 B+

REGULATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC502

 

73 VG3

 

 

 

 

 

 

 

 

 

 

Q608

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q501

DDC3 B+

21 V3O_1

 

 

 

L3_2

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L3_1

24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22 V3O_2

 

 

 

 

SWITCHING

 

DC IN DETECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UP_3B

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28 V3FB

 

 

 

 

 

Q612

 

 

Q607

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

51 VBUS_DET

 

 

VBUS 54

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VPDRV 36

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THP401

 

 

J402

 

 

 

 

 

86 HOLD_OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PVBUS 88

 

 

 

 

 

 

 

 

 

 

VI

6

 

 

 

 

 

DC IN 3V

 

 

 

 

 

99 SUS_IN

 

 

VBUSSEL 43

 

 

 

 

 

 

 

 

 

 

IN1–

12

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

95 RST_IN

 

 

 

CLP

38

 

FFCLR

FCRAMVDD

HOLDDRAMDET

VDDDRAMCLR

ALONEDRAM

 

 

 

 

I_CTL1

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLM

42

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VB B+

 

 

 

 

 

 

POWP1

37

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN451 (2/2)

 

 

VBUS B+

 

 

 

 

 

 

POWP2 41

 

 

 

 

 

 

 

 

 

 

CHARGE CONTROL

 

 

 

 

 

 

(USB)

 

 

DC IN B+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC401

 

 

 

REGULATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q401

 

 

 

 

SYSTEM CONTROLLER

IC801 (3/3)

205 226

VBUS_VB_CTL VREC_SEL

219 73 256 257 207

DRAMDRAM __DRAM _FCRAM _HOLD_VDD_ FFCLRVDDDETCLRALONE

CC_CTL/VI_CTL 237

CHG_PWM 240

CHG_I_CTL2 221

CHG_I_CTL3 222

CHG_MON 122

CHARGE ON/OFF

CHG_TYPE2 255 CONTROL Q407

 

 

RF1

26

4

VI_CTL

VO

32

 

 

7

CHG_CTL

 

 

29

I_CTL2

 

 

23

I_CTL3

BAT+

31

22

A/D

 

 

16

TYPE2

CHG_SW1

30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D401

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRY BATTERY

 

 

 

DC IN DETECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIZE "AA"

 

 

 

Q433

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(IEC DESIGNATION R6)

COMPARATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1PC. 1.5V

IC402

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHARGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

Q432

BATT_MINUS_MON 130

GROUND LINE

GND_SW 246

SWITCHING

 

Q403, 406

MZ-NH700/NHF800

23 23

Image 23
Contents On next SpecificationsModel Name Using Similar Mechanism MD Mechanism Type MT-MZNH900-181 Optical Pick-up NameMZ-NH700/NHF800 Flexible Circuit Board RepairingGeneral Table of ContentsDisassembly DiagramsUnleaded Solder Section Servicing NotesDisplay window MARK/REC +N button Jog dial Way control key Section GeneralSection DisassemblyDisassembly Flow Main Board Case Lower SectionMechanism Deck Section MT-MZNH900-181, MD Standard PIN Case Upper SectionGear BSA, Gear SB SET Chassis AssyOP Service Assy Position of Ferrite Core Holder AssyOutline Test Mode00# Ver 0000 00#Manual AdjFOPChk CD RunOfsRun 000$$$$$$ ## ####N1#### N2####PwrAdj Electrical AdjustmentsTemp 131 ###S211 AD PwrAdj adjustmentsItemNo Display Specification value Measuring point Charge Function Check VBsAdj adjustmentsVBsAdj 261 AD113 ###S 111 ###SDiscPr Resume Clear Servo Overall AdjustmentReleasing The Test Mode Block Diagram MD Servo Section Section DiagramsMIC Block Diagram Audio SectionCLK a Block Diagram Power Supply SectionAbbreviation EE East European model Conductor Side Pattern face are indicated Parts face sideLead layout of conventional IC 2FO Schematic Diagram Main /9 See page 36 for IC Block DiagramGND Schematic Diagram Main /9 See page 36 for IC Block DiagramsCSPChip Size Package CTL2ICHG XRST2 Mute 30 Sgnd Lrck Xbck Xcsadc Poenclosesw Schematic Diagram Main /9TOU NDG Uses unleaded solder Printed Wiring Board Main /2Semiconductor Location IC601 60 IC301 AK5356VN-L IC Block DiagramsIC601 SC901585VAR2 IC602 R1160N121B-TR-FA HN58X2564FPIEZ IC Pin Function Description Oscvdd DavddDVDD25LPF DavssDvrego FiliFilo CltvDclsoutl VreflVrefr DclsoutrSCK0 AccessledSI0 SO0Gndsw DRVXcsnv PWMSETCODE3 SCS4Hizsld HizspdlRef. No Description Section Exploded Views311 NHF800 US NH7002023-317-1 2023-318-1111 124 125 Chassis Section109 117 110M703 Mechanism Deck Section MT-MZNH900-181Ref. No Description Remark 160 3-263-453-01 PLATE, Ratchet M702Section Electrical Parts List Main 1uF 10% 10V C420 125-777-11 C415 125-777-111uF 10% 10V C416 125-777-11 1uF 10% 10V C419 125-777-117uF 10% 16V C673 125-777-11 C669 125-837-111uF 10% C671 125-777-11 1uF 10% 10V C672 127-820-11MA8056-L D303 8-719-056-54 Diode MAZS068008SONNCD6.8H-T1 MA22D2800LS0L702 216-295-00 L607 419-881-1147uH L608 400-402-21 7uH L701 216-295-00R433 245-455-21 R305 RES-CHIP 100 16W R306 10K R307 R308 216-864-11R309 RES-CHIP 16W R310 R312 R314 218-990-11 R315 218-990-11R653 RES-CHIP 22K 16W R654 R657 218-990-11 R649 245-456-21R650 216-793-11 R652 218-990-11470K 16W R922 218-977-11 S894 SWITCH, Push 2 KEYRef. No Description Remark R918 218-985-11 470K 16W R920 218-985-11506 504 501 502503 504Revision History

NHF800 specifications

The Sony NHF800 is a remarkable addition to Sony's range of high-fidelity audio devices, designed to elevate the listening experience for audiophiles and casual listeners alike. Blending cutting-edge technology with user-friendly features, the NHF800 stands out as a versatile and powerful audio solution.

At the heart of the NHF800 is its advanced audio circuitry, which employs high-resolution audio technology. This ensures that music playback is not only accurate but also retains the depth and richness of the original recordings. Supporting various audio formats, including DSD, PCM, and even compressed formats, this device caters to diverse musical tastes while maintaining superior sound quality.

One of the standout features of the Sony NHF800 is its compatibility with both wired and wireless connections. With Bluetooth capabilities, users can stream music effortlessly from smartphones, tablets, or computers, while the high-resolution audio ensures that streamed content does not compromise on quality. Additionally, the device is equipped with Wi-Fi support, allowing for easy access to streaming services and internet radio, further broadening the audio horizons for users.

The NHF800 also boasts a built-in DAC (Digital-to-Analog Converter) that promotes enhanced audio performance. This DAC converts digital signals into analog with precision, resulting in a cleaner, more detailed sound output. The device supports a wide dynamic range, allowing listeners to experience their music as intended by the artists.

Moreover, the NHF800 features an intuitive user interface that simplifies navigation through music libraries and settings. The color display provides clear visuals, making it easy to browse albums, playlists, and streaming options. The device's ergonomic design ensures that it is not only visually appealing but also comfortable to use, whether at home or on the go.

Further enhancing the listening experience, the device incorporates noise-canceling technologies, allowing users to enjoy their music without external interruptions. This feature is particularly beneficial for users in noisy environments, such as public transport or busy urban settings.

In summary, the Sony NHF800 is a well-rounded high-fidelity audio device that merges advanced technology with usability. Its high-resolution audio capability, extensive connectivity options, and user-friendly design make it an excellent choice for anyone looking to elevate their listening experience. Whether at home or out and about, the NHF800 ensures that every note resonates with clarity and detail, making music come alive like never before.