Sony NHF800 service manual Mute

Page 30

MZ-NH700/NHF800

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

(Page 26)

F1

F2

J1

J2

J3

J4

(6/8)

 

 

 

R352

C354

 

 

 

4.7

 

 

 

220k

 

 

 

4V

 

 

 

 

STBYXHP

MUTE

BEEP

 

Q351

 

2SC4738F-Y/GR

 

(TPL3)

R356

100k

Q353

SI1410EDH-T1

 

 

 

 

 

REFERENCE

 

 

 

 

 

VOLTAGE SWITCH

4700p

2200p

4700p

2200p

C351

R353

1

22k

 

 

-1

-2

Q352,353

S

AOUTL

AOUTR

XHP_STBY

MUTE

AOUTL

AOUTR XHP_STBY MUTE

151C

C152

251C

252C

R354

Q352

B+ SWITCH

BEEP

BEEP

 

 

 

 

 

 

 

 

 

 

 

10k

 

 

 

 

10k

10k

10k

10k

 

 

 

 

 

 

 

 

 

153R

154R

253R

254R

 

 

 

 

 

 

 

 

 

 

 

 

PW_SW

SWMT

SWBST

INBEEP

GND

VREF_IN

 

R258

 

 

 

 

 

MT_TC

VREF

 

2.2k

 

 

 

 

 

 

 

 

 

 

 

 

 

C356

 

 

 

 

 

 

 

 

R257

C253

R251

R252

 

 

VCC1

 

 

 

 

LPF1

10

 

 

 

 

 

 

4V

 

 

 

 

 

 

 

 

1k

*

*

*

 

 

 

 

 

 

 

 

 

XP4314-TX

R358

2.2M

XRST2

WK_DET

REC_KEY

RMC_KEY

HALF_LOCK

XCS_PWR_IC

(Page 32)

XRST2

 

WK_DET

 

REC_KEY

 

RMC_KEY

 

HALF_LOCK

 

XCS_PWR_IC

 

S_GND

(Page 31)

GND

 

(Page 29)

AOUTR

AOUTL

 

 

 

 

 

INB

 

HEADPHONE AMP

BST_NF1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INA

 

IC352

 

LPF2

 

 

 

 

 

 

 

TA2131FLG(EL)

 

 

R157

 

C153

R151

R152

 

 

 

 

 

 

 

 

 

 

 

 

 

1k

 

*

*

*

BEEP_OUTB

 

GND

 

 

BST_NF2

 

 

 

 

 

 

 

 

 

 

R158

*

 

 

 

BEEP_

 

 

 

 

C355

C153,253

 

 

 

 

BST_OUT

2.2

2.2k

 

1 (US)

 

 

OUTA

OUTA

_PWR

OUTB

 

 

 

 

 

DET

 

 

 

 

 

 

 

 

 

2.2

(EXCEPT US)

 

VCC2

AGC_IN

 

RMC_DTCK

*

R152,252

4.7k

(US)

F351

F1

0.25A

1.5A

125V

63V

FB1

R355

1M

FB355

C364

J352

RVDD

VB

2.2k (EXCEPT US)

 

 

(AEP,UK,EE)

RMC_KEY

*

R151,251

R261

RADIO_ON

4.7k

(US)

 

22

 

10k

(EXCEPT US)

 

 

 

FB354

FB353

FB2

FB357

0.1

DTCK

KEY_R

STAT

RGND

 

 

 

 

 

 

 

R161

R351

 

 

 

 

 

 

22

 

 

 

 

 

 

 

47

 

 

 

 

 

 

 

 

 

 

 

C160

 

 

 

L351

 

 

 

220

 

 

R160

 

 

 

4V

 

 

0

 

 

 

 

 

*

 

 

 

 

 

 

C352

C353

C154

C254

C260

 

 

R260

220

 

 

*

10

 

 

0.1

0.22

0.22

4V

 

 

 

6.3V

 

 

 

 

 

 

 

 

 

 

 

 

R155

R255

 

R156

R256

* R160,260

 

 

 

0 (EXCEPT AEP,UK,EE)

 

 

10

10

 

4.7k

4.7k

 

 

 

 

10 (AEP,UK,EE)

R359 0

R162 0

R262 0

D352

NNCD6.8H-T1

D151D251

02DZ2.4-Z(TPH3)02DZ2.4-Z(TPH3)

J 5

H1

(Page 28)

MZ-NH700/NHF800

C361 C363

0.010.1

30 30

Image 30
Contents MD Mechanism Type MT-MZNH900-181 Optical Pick-up Name SpecificationsModel Name Using Similar Mechanism On nextFlexible Circuit Board Repairing MZ-NH700/NHF800Diagrams Table of ContentsDisassembly GeneralSection Servicing Notes Unleaded SolderSection General Display window MARK/REC +N button Jog dial Way control keyDisassembly Disassembly FlowSection 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 CoreTest Mode 00# VerOutline AdjF 00#Manual 0000000 CD RunOfsRun OPChkN2#### ####N1#### $$$$$$ ##131 ###S Electrical AdjustmentsTemp PwrAdjPwrAdj adjustments ItemNo Display Specification value Measuring point211 AD 261 AD VBsAdj adjustmentsVBsAdj Charge Function Check111 ###S DiscPr113 ###S Servo Overall Adjustment Releasing The Test ModeResume Clear Section Diagrams Block Diagram MD Servo SectionBlock Diagram Audio Section MICBlock Diagram Power Supply Section CLK aConductor Side Pattern face are indicated Parts face side Lead layout of conventional ICAbbreviation EE East European model 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 Printed Wiring Board Main /2 Semiconductor LocationUses unleaded solder IC601 60 IC Block Diagrams IC301 AK5356VN-LIC601 SC901585VAR2 IC602 R1160N121B-TR-FA HN58X2564FPIEZ IC Pin Function Description Davss DavddDVDD25LPF OscvddCltv FiliFilo DvregoDclsoutr VreflVrefr DclsoutlSO0 AccessledSI0 SCK0PWM DRVXcsnv GndswHizspdl SCS4Hizsld SETCODE3Section Exploded Views 311Ref. No Description 2023-318-1 NH7002023-317-1 NHF800 US110 Chassis Section109 117 111 124 125M702 Mechanism Deck Section MT-MZNH900-181Ref. No Description Remark 160 3-263-453-01 PLATE, Ratchet M703Section Electrical Parts List Main 1uF 10% 10V C419 125-777-11 C415 125-777-111uF 10% 10V C416 125-777-11 1uF 10% 10V C420 125-777-111uF 10% 10V C672 127-820-11 C669 125-837-111uF 10% C671 125-777-11 7uF 10% 16V C673 125-777-11MA22D2800LS0 D303 8-719-056-54 Diode MAZS068008SONNCD6.8H-T1 MA8056-L7uH L701 216-295-00 L607 419-881-1147uH L608 400-402-21 L702 216-295-00R315 218-990-11 R305 RES-CHIP 100 16W R306 10K R307 R308 216-864-11R309 RES-CHIP 16W R310 R312 R314 218-990-11 R433 245-455-21R652 218-990-11 R649 245-456-21R650 216-793-11 R653 RES-CHIP 22K 16W R654 R657 218-990-11470K 16W R920 218-985-11 S894 SWITCH, Push 2 KEYRef. No Description Remark R918 218-985-11 470K 16W R922 218-977-11504 501 502503 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.