Sony NHF800 Vrefl, Vrefr, Dclsoutr, Dclsoutl, Rtck, Trdr, Ffdr, FS4, Sfdr, Sprd, Spfd, Spdv, Spdw

Page 43

MZ-NH700/NHF800

Pin No.

Pin Name

I/O

Description

 

 

 

 

 

146

VREFL

I

Reference voltage terminal connected to the capacitor (for the built-in D/A converter L-CH)

 

 

 

 

 

 

147

AOUTL

O

Built-in D/A converter L-CH signal output

 

 

 

 

 

 

 

 

148

AOUTR

O

Built-in D/A converter R-CH signal output

 

 

 

 

 

 

149

VREFR

I

Reference voltage terminal connected to the capacitor (for the built-in D/A converter R-CH)

150

DCLSOUTR

O

PWM modulator signal output for the class-D headphone amplifier

Not used

151

DCLSOUTL

O

PWM modulator signal output for the class-D headphone amplifier

Not used

 

 

 

 

 

 

152

RTCK

Not used

 

 

 

 

 

 

 

153

ADFG

I

ADIP duplex FM signal (22.05±1kHz) input from the RF amplifier

 

 

 

 

 

 

154

TRDR

O

Tracking servo drive PWM signal output (–) to the coil driver

 

 

 

 

 

 

155

TFDR

O

Tracking servo drive PWM signal output (+) to the coil driver

 

156

FFDR

O

Focus servo drive PWM signal output (+) to the coil driver

 

157

FRDR

O

Focus servo drive PWM signal output (–) to the coil driver

 

 

 

 

 

 

 

158

FS4

O

176.4 kHz clock signal output

 

 

 

 

 

 

 

159

SFDR

O

Sled servo drive PWM signal output to the motor driver

 

 

 

 

 

 

160

SPRD

O

Spindle motor drive control signal output (U) to the motor driver

 

 

 

 

 

 

161

SPFD

O

Spindle servo drive PWM signal output to the motor driver

 

162

SPDV

O

Spindle motor drive control signal output (V) to the motor driver

 

163

SPDW

O

Spindle motor drive control signal output (W) to the motor driver

 

 

 

 

 

164

SPCU

I

Spindle motor drive comparison signal input (U) from the motor driver

 

 

 

 

165

SPCV

I

Spindle motor drive comparison signal input (V) from the motor driver

 

 

 

 

166

SPCW

I

Spindle motor drive comparison signal input (W) from the motor driver

 

 

 

 

 

167

SLDV

O

Sled motor drive control signal output (V) to the motor driver

 

168

SLDW

O

Sled motor drive control signal output (W) to the motor driver

 

169

SLCU

I

Sled motor drive comparison signal input (U) from the motor driver

 

170

SLCV

I

Sled motor drive comparison signal input (V) from the motor driver

 

 

 

 

 

 

171

SLCW

I

Sled motor drive comparison signal input (W) from the motor driver

 

 

 

 

 

 

172

SRDR

O

Sled motor drive control signal output (U) to the motor driver

 

 

 

 

 

 

 

173

DIN

I

Digital audio signal input terminal

 

 

 

 

 

 

 

 

174

FS256_OUT

O

11.2896 MHz clock output

 

 

175

CHOPPERCLK

O

Clock signal output for chopper

 

 

176 to 179

MNT0 to MNT3

O

Monitor output for DSP

 

 

 

 

 

 

 

 

180

OFTRK

I/O

Tracking signal input/output for MD3

 

 

 

 

 

 

 

 

181

RECP

O

Laser power changeover signal output

 

 

 

 

 

 

 

 

182

EFMO

O

EFM encode data output for the record

 

 

 

 

 

 

 

 

183

PAUSE_KEY

I

Pause key input terminal

 

 

184

PROTECT

I

Recording protector detection input for normal disc

 

185

OPT_DET

I

Optical digital input plug detection input terminal

“H”: optical in

 

 

 

 

 

 

186

XJACK_DET

I

Line input plug detection input terminal “L”: plug in

 

 

 

 

 

 

 

187

XMIC_DET

I

Microphone input plug detection input terminal

“L”: plug in

 

 

 

 

 

 

 

188

OPEN_CLOSE

I

Open switch input terminal

 

 

_SW

 

 

 

 

 

 

 

 

 

 

 

 

 

189

XCS_ADC

O

Chip select signal output for A/D converter

 

 

190

XPD_ADC

O

Power control signal output for A/D converter

 

 

191

NC

Not used

 

 

 

 

 

 

 

 

192

XRST_LCD

O

Reset signal output for the LCD module

 

 

 

 

 

 

 

 

193

USB_WAKE

I

System wake up signal input by USB connect

 

 

 

 

 

 

194

A7CAL_SW

O

A7 offset voltage CAL on/off control signal output terminal Not used

 

 

 

 

 

 

43

Image 43
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 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 0000 00#Manual AdjFOPChk CD RunOfsRun 000$$$$$$ ## ####N1#### N2####PwrAdj Electrical AdjustmentsTemp 131 ###SItemNo Display Specification value Measuring point PwrAdj adjustments211 AD Charge Function Check VBsAdj adjustmentsVBsAdj 261 ADDiscPr 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 Oscvdd DavddDVDD25LPF DavssDvrego FiliFilo CltvDclsoutl VreflVrefr DclsoutrSCK0 AccessledSI0 SO0Gndsw DRVXcsnv PWMSETCODE3 SCS4Hizsld Hizspdl311 Section Exploded ViewsRef. No Description 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.