Sony NHF800 Drv, Xcsnv, Pwm, Gndsw, Csrtc, Vbusdet, Ssbdata, Ssbclk, Ldpen, CHGTYPE2, Det, Clr

Page 45

MZ-NH700/NHF800

Pin No.

Pin Name

I/O

Description

 

 

 

 

 

 

 

 

 

 

 

238

XRST_MTR

O

Reset signal output to the motor driver

 

 

 

 

_DRV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

239

XCS_NV

O

Chip select signal output to the EEPROM

 

 

 

 

 

 

 

 

 

 

 

240

CHG_PWM

O

Charge current or voltage control signal output terminal

 

 

 

241

IAMP_CAL

O

Offset signal output of current sense amplifier

Not used

 

 

 

242

NC

Not used

 

 

 

 

243

D_VCONT

O

For voltage control signal output terminal for class-D amplifier

Not used

_PWM

 

 

 

 

 

 

 

 

 

 

 

 

244

CHG_OPR_LED

O

Charge indication LED drive signal output terminal Not used

 

 

 

 

 

 

 

 

245

XCS_REC_DRV

O

Chip select signal output to the over write head driver

 

 

 

 

 

 

 

 

 

 

 

246

GND_SW

O

Ground line switching signal output terminal

 

 

 

 

247

CS_RTC

O

Chip select signal output for real time clock

Not used

 

 

 

248

JOG_A

I

Jog dial pulse input terminal

 

 

 

 

249

JOG_B

I

Jog dial pulse input terminal

 

 

 

 

 

 

 

 

 

 

 

 

250

VBUS_DET

I

USB power supply voltage detection terminal

 

 

 

 

 

 

 

 

 

 

 

 

251

SSB_DATA

I/O

SSB data input/output with the RF amplifier

 

 

 

 

 

 

 

 

 

 

 

 

252

SSB_CLK

O

SSB clock output to the RF amplifier

 

 

 

 

 

 

 

 

 

 

 

 

253

HIMD_

I

Recording protector detection input for Hi-MD disc

 

 

 

PROTECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

254

LDPEN

O

Pulse/DC light-emit switching signal output terminal

 

 

 

255

CHG_TYPE2

O

Battery charge control signal output terminal

“H”: charging

 

 

 

 

 

 

 

 

 

256

DRAM_HOLD

I

Detection terminal for internal D-RAM power supply information keeping

_DET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

257

DRAM_VDD

O

Internal D-RAM power latch clear signal output for quick mode sleep

_CLR

 

 

 

 

 

 

 

 

 

 

 

258

AD2ENDF

I

Monitoring terminal for flag of servo signal A/D measuring finish

259

TEST

Not used

 

 

 

 

260

SRAM_MODE

I

Not used

 

 

 

 

261

HSALF

I

Not used

 

 

 

 

 

 

 

 

 

 

 

 

262 to

TIGER_MON0 to

O

Trigger monitoring terminal output clock=18.5 MHz

 

 

 

271

TIGER_MON9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

272

XLSRCK

O

Pulse output for laser strobe recording

 

 

 

 

 

 

 

 

 

 

 

 

273

TAT

Not used

 

 

 

 

274

TAN

Not used

 

 

 

 

275

NAR

Not used

 

 

 

 

276

IDO

Not used

 

 

 

 

 

 

 

 

 

 

 

 

277

SAK

Not used

 

 

 

 

 

 

 

 

 

278

LRCKI

I

L/R sampling clock signal input terminal for PCM data interface

Not used

 

 

 

 

 

279

XBCKI

I

Bit clock signal input terminal for the PCM data interface

Not used

280

DATAI

I

Serial clock signal input terminal for the PCM data interface Not used

281

SI3

I

Serial data input for LAM microcomputer communication

Not used

282

SO3

O

Serial data output for LAM microcomputer communication

Not used

 

 

 

 

283

SCK3

O

Serial data transfer clock signal output for LAM microcomputer communication Not used

 

 

 

 

 

284

SI4

I

Data input from ATRAC3 plus encoder communication

Not used

 

 

 

 

 

285

SO4

O

Data output for ATRAC3 plus encoder communication

Not used

 

 

 

 

 

286

SCK4

O

Clock signal output for ATRAC3 plus encoder communication

Not used

287

SCS3

O

Chip select signal output for LAM microcomputer communication Not used

45

Image 45
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 Disassembly FlowSection 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 AssyTest Mode 00# VerOutline Manual 00#AdjF 0000OfsRun CD Run000 OPChkN1#### ####N2#### $$$$$$ ##Temp Electrical Adjustments131 ###S PwrAdjPwrAdj adjustments ItemNo Display Specification value Measuring point211 AD VBsAdj VBsAdj adjustments261 AD Charge Function Check111 ###S DiscPr113 ###S Servo Overall Adjustment Releasing The Test ModeResume Clear Block Diagram MD Servo Section Section DiagramsMIC Block Diagram Audio SectionCLK a Block Diagram Power Supply SectionConductor Side Pattern face are indicated Parts face side Lead layout of conventional ICAbbreviation 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 Printed Wiring Board Main /2 Semiconductor LocationUses 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 SETCODE3Section Exploded Views 311Ref. 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.