Sony NHF800 SI0, SO0, SCK0, Beep, Lamspreq, Recled, Accessled, Vbusvbctl, PF1/S0DO, PF2/S1DO, SI1

Page 44

MZ-NH700/NHF800

Pin No.

Pin Name

I/O

Description

 

 

 

 

 

 

195

SI0

I

Serial data input from the EEPROM

 

 

 

 

 

 

196

SO0

O

Serial data output to the EEPROM, A/D converter and controllers

 

 

 

 

197

SCK0

O

Serial clock output to the EEPROM, A/D converter and controllers

 

 

 

 

 

198

XGUM_ON

I

Rechargeable battery detection signal input terminal

Not used

199

BEEP

O

Beep sound control signal output to the headphone amplifier

200

XOPT_CTL

O

Power supply on/off control signal output for the optical input jack

 

 

 

 

 

 

201

LAM_REQCHK

I

LAM power check terminal Not used

 

 

 

 

 

 

 

202

LAM_SPREQ

O

LAM force stop request signal output Not used

 

 

 

 

 

 

 

203

REC_LED

O

REC or Access LED drive signal output terminal Not used

/ACCESS_LED

 

 

 

 

 

 

 

 

 

204

MDVCC_CTL

O

Power supply control signal output for the OP modulation

205

VBUS_VB_CTL

O

USB power supply control signal output terminal

 

206

LAM_NAME

O

LAM name data request signal output terminal

Not used

 

 

 

 

 

 

207

DRAM_ALONE

O

Self-refresh signal output for internal D-RAM

 

 

 

 

 

 

 

 

208

PF0

Not used

 

 

 

 

 

 

 

 

209

PF1/S0DO

O

Connect to the optical pick-up block

 

 

 

 

 

 

 

 

210

PF2/S1DO

O

Connect to the optical pick-up block

 

 

211

PF3/RTG3

O

Connect to the headphone amplifier

 

 

212

XMUTE

O

Muting on/off control signal output terminal

 

 

/MUTE

 

 

 

 

 

 

 

 

 

 

 

 

 

213

SI1

I

Serial data input from the LCD module

 

 

 

 

 

 

 

 

214

SO1

O

Serial data output to the LCD module

 

 

 

 

 

 

215

SCK1

I/O

Serial data transfer clock signal input/output terminal with the LCD module

 

 

 

 

 

 

216

SLD_MON

I

Sled servo monitoring terminal

 

 

217

AOUT_SEL

O

Headphone/line output switching terminal Not used

218

YUZU_SLEEP

O

Chip enable output to the power control IC

 

 

 

 

 

 

219

FFCLR

O

Power on/off control signal output for FCRAM (internal RAM)

 

 

 

 

220

CHGI_CTL1

O

Charge current limiter control signal output at the time of DC adaptor use

“L”: charge Not used

 

 

 

 

 

 

 

 

 

 

 

 

221

CHGI_CTL2

O

Charge current control signal output terminal

“L”: low current charge

 

 

 

 

 

222

CHGI_CTL3

O

Charge current control signal output terminal

“L”: low current charge

223

SLBUSY

I

Receive signal monitoring terminal for sled command

224

XTEST

I

Terminal for the test mode setting (normally open)

“L”: test mode

 

 

 

 

 

 

225

XRF_RST

O

Reset signal output to the RF amplifier

 

 

 

 

 

 

 

226

VREC_SEL

O

VREC start-up timing control signal output terminal

 

 

 

 

 

 

 

227

XHOLD_SW

I

HOLD switch detection input terminal

 

 

 

 

 

 

 

 

228

T_MARK_SW

I

Track mark switch input terminal Not used

 

 

229

XRST2_DET

I

Reset signal input from the power control IC

 

 

230

CHGI_SEL

O

Charge/discharge control signal output for current sense amplifier Not used

 

 

 

 

 

231

RECP_MON

I

Laser power changeover signal monitoring terminal

 

 

 

 

 

 

 

232

SPDL_MON

I

Spindle servo monitoring terminal

 

 

 

 

 

 

 

233

XCS_PWR_IC

O

Chip select signal output to the power control IC

 

 

 

 

 

 

 

234

RXD

I

Not used

 

 

235

TXD

O

Not used

 

 

236

XCS_LCD

O

Chip select signal output to the LCD module

 

 

237

CC_CTL

O

Constant current circuit control signal output terminal

/VI_CTL

 

 

 

 

 

 

 

 

 

 

 

44

Image 44
Contents Specifications Model Name Using Similar MechanismMD Mechanism Type MT-MZNH900-181 Optical Pick-up Name On nextFlexible Circuit Board Repairing MZ-NH700/NHF800Table of Contents DisassemblyDiagrams GeneralSection Servicing Notes Unleaded SolderSection General Display window MARK/REC +N button Jog dial Way control keySection DisassemblyDisassembly Flow Case Lower Section Main BoardCase Upper Section Mechanism Deck Section MT-MZNH900-181, MD Standard PINSET Chassis Assy Gear BSA, Gear SBOP Service Assy Holder Assy Position of Ferrite CoreOutline Test Mode00# Ver 00# ManualAdjF 0000CD Run OfsRun000 OPChk#### N1####N2#### $$$$$$ ##Electrical Adjustments Temp131 ###S PwrAdj211 AD PwrAdj adjustmentsItemNo Display Specification value Measuring point VBsAdj adjustments VBsAdj261 AD Charge Function Check113 ###S 111 ###SDiscPr Resume Clear Servo Overall AdjustmentReleasing The Test Mode Section Diagrams Block Diagram MD Servo SectionBlock Diagram Audio Section MICBlock Diagram Power Supply Section CLK aAbbreviation EE East European model Conductor Side Pattern face are indicated Parts face sideLead layout of conventional IC Schematic Diagram Main /9 See page 36 for IC Block Diagram 2FOSchematic Diagram Main /9 See page 36 for IC Block Diagrams GNDCSPChip Size Package CTL2ICHG XRST2 Mute 30 Sgnd Schematic Diagram Main /9 Lrck Xbck Xcsadc PoencloseswTOU NDG Uses unleaded solder Printed Wiring Board Main /2Semiconductor Location IC601 60 IC Block Diagrams IC301 AK5356VN-LIC601 SC901585VAR2 IC602 R1160N121B-TR-FA HN58X2564FPIEZ IC Pin Function Description Davdd DVDD25LPFDavss OscvddFili FiloCltv DvregoVrefl VrefrDclsoutr DclsoutlAccessled SI0SO0 SCK0DRV XcsnvPWM GndswSCS4 HizsldHizspdl SETCODE3Ref. No Description Section Exploded Views311 NH700 2023-317-12023-318-1 NHF800 USChassis Section 109 117110 111 124 125Mechanism Deck Section MT-MZNH900-181 Ref. No Description Remark 160 3-263-453-01 PLATE, RatchetM702 M703Section Electrical Parts List Main C415 125-777-11 1uF 10% 10V C416 125-777-111uF 10% 10V C419 125-777-11 1uF 10% 10V C420 125-777-11C669 125-837-11 1uF 10% C671 125-777-111uF 10% 10V C672 127-820-11 7uF 10% 16V C673 125-777-11D303 8-719-056-54 Diode MAZS068008SO NNCD6.8H-T1MA22D2800LS0 MA8056-LL607 419-881-11 47uH L608 400-402-217uH L701 216-295-00 L702 216-295-00R305 RES-CHIP 100 16W R306 10K R307 R308 216-864-11 R309 RES-CHIP 16W R310 R312 R314 218-990-11R315 218-990-11 R433 245-455-21R649 245-456-21 R650 216-793-11R652 218-990-11 R653 RES-CHIP 22K 16W R654 R657 218-990-11S894 SWITCH, Push 2 KEY Ref. No Description Remark R918 218-985-11470K 16W R920 218-985-11 470K 16W R922 218-977-11501 502 503504 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.