Sony NHF800 service manual Schematic Diagram Main /9 See page 36 for IC Block Diagram, 2FO

Page 25

6-4. SCHEMATIC DIAGRAM – MAIN Section (1/9) – See page 36 for IC Block Diagram.

(1/9)

ZI2

-TRK

TRK+

MZ-NH700/NHF800

C714

0.1

XRST_MTR_DRV SLD_CON_W

SLD_CON_V

SLD_CON_U

SLD_PWM

XRST_MTR_DRV SLD_CON_W SLD_CON_V SLD_CON_U

M702

(SLED)

U

N

CN701

10P

SLEDW

WV

R706 2.2k

R707 2.2k

R708 2.2k

047.0

047.0

047.0

1k

C701

C702

C703

713R

L701

L702

0

0

SLD_CON_W

SLD_CON_V

I2W

2WPGND

2OW

ST2

2VWVM

2VO

2VO

V2NDUGP

2UO

2OU

2UVM

R2VM

2RO

2RO

D2NPG

FO2

VI2

SLD_CON_U

2FO

UI2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VMF2

SLD_PWM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C716

0.1

TF1

SLD_MON_U SLD_MON_V SLD_MON_W

TF1

TR1

ZI2

ZI1

FR1

FF1

CLV_CON_W

CLV_CON_V CLV_CON_U

SLD_PWM

SLD_MON_U

SLD_MON_V

SLD_MON_W

TF1

TR1

ZI2

ZI1

FR1

(Page 32)

FF1

 

CLV_CON_W

CLV_CON_V

M703

SLEDV

SLEDU

SLEDN

HD_DRV-

PWM2

FI2

SLD_MON_U

RI2

CPUO2

SLD_MON_V

COM2

CPVO2

SLD_MON_W

CPUI2

CPWO2

TR1

CLV_PWM

CLV_MON_U CLV_MON_V

CLV_CON_U CLV_PWM CLV_MON_U CLV_MON_V

OVER WRITE

HEAD UP/DOWN

M701

HD_DRV+

CLVW

C712

0.1

C713

XRST_MTR_DRV

R712 0

CPVI2

 

STALL

 

GND

CPWI2

 

 

FOCUS/TRACKING COIL DRIVE,

CLV_MON_W

CLV_MON_W

 

(SPINDLE)

CLVV

 

U

CLVU

 

N

 

 

 

 

CLVN

W

 

V

0.1

01.0

022.0

01.0

022.0

01.0

022.0

C705

C706

C707

C708

C709

C710

R709 10k

R710 10k

R711 10k

VCC

 

 

 

SPINDLE/SLED MOTOR DRIVE

 

 

 

 

CPWI1

VG

 

 

 

 

 

 

IC701

 

 

 

 

 

 

CPVI1

CLV_MON_W

 

 

 

 

 

 

BD6607KN

 

 

 

 

 

CPUI1

CPWO1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLV_MON_V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM1

CPVO1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLV_MON_U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RI1

CPUO1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLV_PWM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FI1

PWM1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLV_CON_U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VMF1

UI1

 

 

 

 

 

 

V1UD PGN

 

 

 

 

 

 

 

CLV_CON_V

1W DPGN

 

 

 

 

 

 

 

 

 

 

 

 

FO1

VI1

 

 

1VW VM

 

 

 

 

 

 

 

 

D1NPG

I1W

O1W

ST1

VO1

VO1

1UO

O1U

1UVM

1RVM

1RO

O1R

1FO

CLV_CON_W

FR1

FF1 C717 0.1

A1

A2

A3

A4

(Page 26)

ZI1

C715

0.1

-FCS

FCS+

B1

B2

(Page 27)

MZ-NH700/NHF800

BP701

A5

B3

25 25

Image 25
Contents Model Name Using Similar Mechanism SpecificationsMD Mechanism Type MT-MZNH900-181 Optical Pick-up Name On nextMZ-NH700/NHF800 Flexible Circuit Board RepairingDisassembly Table of ContentsDiagrams GeneralUnleaded Solder Section Servicing NotesDisplay window MARK/REC +N button Jog dial Way control key Section GeneralDisassembly Flow DisassemblySection 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 Assy00# Ver Test ModeOutline Manual 00#AdjF 0000OfsRun CD Run000 OPChkN1#### ####N2#### $$$$$$ ##Temp Electrical Adjustments131 ###S PwrAdjItemNo Display Specification value Measuring point PwrAdj adjustments211 AD VBsAdj VBsAdj adjustments261 AD Charge Function CheckDiscPr 111 ###S113 ###S Releasing The Test Mode Servo Overall AdjustmentResume Clear Block Diagram MD Servo Section Section DiagramsMIC Block Diagram Audio SectionCLK a Block Diagram Power Supply SectionLead layout of conventional IC Conductor Side Pattern face are indicated Parts face sideAbbreviation EE East European model 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 Semiconductor Location Printed Wiring Board Main /2Uses unleaded solder IC601 60 IC301 AK5356VN-L IC Block DiagramsIC601 SC901585VAR2 IC602 R1160N121B-TR-FA HN58X2564FPIEZ IC Pin Function Description DVDD25LPF DavddDavss OscvddFilo FiliCltv DvregoVrefr VreflDclsoutr DclsoutlSI0 AccessledSO0 SCK0Xcsnv DRVPWM GndswHizsld SCS4Hizspdl SETCODE3311 Section Exploded ViewsRef. No Description 2023-317-1 NH7002023-318-1 NHF800 US109 117 Chassis Section110 111 124 125Ref. No Description Remark 160 3-263-453-01 PLATE, Ratchet Mechanism Deck Section MT-MZNH900-181M702 M703Section Electrical Parts List Main 1uF 10% 10V C416 125-777-11 C415 125-777-111uF 10% 10V C419 125-777-11 1uF 10% 10V C420 125-777-111uF 10% C671 125-777-11 C669 125-837-111uF 10% 10V C672 127-820-11 7uF 10% 16V C673 125-777-11NNCD6.8H-T1 D303 8-719-056-54 Diode MAZS068008SOMA22D2800LS0 MA8056-L47uH L608 400-402-21 L607 419-881-117uH L701 216-295-00 L702 216-295-00R309 RES-CHIP 16W R310 R312 R314 218-990-11 R305 RES-CHIP 100 16W R306 10K R307 R308 216-864-11R315 218-990-11 R433 245-455-21R650 216-793-11 R649 245-456-21R652 218-990-11 R653 RES-CHIP 22K 16W R654 R657 218-990-11Ref. No Description Remark R918 218-985-11 S894 SWITCH, Push 2 KEY470K 16W R920 218-985-11 470K 16W R922 218-977-11503 501 502504 506 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.