Sony NHF800 Davdd, DVDD25LPF, Davss, Oscvdd, Usboscvdd, Usbifvdd, IFVDD4, IFVSS1, IFVSS2, FVDD0

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MZ-NH700/NHF800

Pin No.

Pin Name

I/O

Description

 

 

 

 

47

DAVDD

Power supply terminal (for D/A converter)

 

 

 

 

48

DVDD25LPF

Power supply terminal (for D/A converter)

 

 

 

 

49

DAVSS

Ground terminal (for D/A converter)

 

 

 

 

50

OSCVDD

Power supply terminal (for 22 MHz OSC)

51

USBOSCVDD

Power supply terminal (for the USB 48 MHz OSC)

52

TSMVDD

Power supply terminal (for the TSB master communication)

 

 

 

 

53

MAIFVDD

Power supply terminal (for MA interface)

 

 

 

 

54

MSJTAGVDD

Power supply terminal (for AUX)

 

 

 

 

55

USBIFVDD

Power supply terminal (for USB interface)

 

 

 

 

56 to 58

VSS_0 to VSS_2

Ground terminal

59 to 62

IFVDD_1 to

Power supply terminal (for interface)

IFVDD_4

 

 

 

 

 

 

 

63

IFVSS_1

Ground terminal (for interface)

 

 

 

 

64

IFVSS_2

Ground terminal (for interface)

 

 

 

 

65 to 69

DRAMVDD0 to

Power supply terminal (for D-RAM/DSP interface)

DRAMVDD4

 

 

 

 

 

 

 

70 to 72

DRAMVSS0 to

Ground terminal (for D-RAM/DSP interface)

DRAMVSS2

 

 

 

 

 

 

 

73

FCRAMVDD0

Power supply terminal (for D-RAM)

74

FCRAMVSS0

Ground terminal (for D-RAM)

75

FCRAMVDD1

Power supply terminal (for D-RAM)

 

 

 

 

76

FCRAMVSS1

Ground terminal (for D-RAM)

 

 

 

 

77

FVDD0

Power supply terminal (for AUX)

 

 

 

 

78

FVSS0

Ground terminal (for AUX)

79

SRAMVDD0

Power supply terminal (for AUX)

80

SRAMVSS0

Ground terminal (for AUX)

81

SRAMVDD1

Power supply terminal (for AUX)

 

 

 

 

82

SRAMVSS1

Ground terminal (for AUX)

 

 

 

 

83

EBIFVDD0

Power supply terminal (for interface circuit)

 

 

 

 

84

EBIFVSS0

Ground terminal (for interface circuit)

 

 

 

 

85

EBIFVDD1

Power supply terminal (for interface circuit)

86

EBIFVSS1

Ground terminal (for interface circuit)

87

EBIFVDD2

Power supply terminal (for interface circuit)

 

 

 

 

88

EBIFVSS2

Ground terminal (for interface circuit)

 

 

 

 

89

EBIFVDD3

Power supply terminal (for interface circuit)

 

 

 

 

90

EBIFVSS3

Ground terminal (for interface circuit)

 

 

 

 

91

EBIFVDD4

Power supply terminal (for interface circuit)

92

EBIFVSS4

Ground terminal (for interface circuit)

93

EBIFVDD5

Power supply terminal (for interface circuit)

 

 

 

 

94

EBIFVSS5

Ground terminal (for interface circuit)

 

 

 

 

95

EBIFVDD6

Power supply terminal (for interface circuit)

 

 

 

 

96

EBIFVSS6

Ground terminal (for interface circuit)

 

 

 

 

97

EBIFVDD7

Power supply terminal (for interface circuit)

98

EBIFVSS7

Ground terminal (for interface circuit)

99

ASYO

O

Playback EFM duplex signal output

100

ASYI

I

Playback EFM comparator slice level input

 

 

 

 

101

RFI

I

Playback EFM RF signal input from the RF amplifier

 

 

 

 

41

Image 41
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 GeneralSection DisassemblyDisassembly Flow 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 AssyOutline Test Mode00# Ver Manual 00#AdjF 0000OfsRun CD Run000 OPChkN1#### ####N2#### $$$$$$ ##Temp Electrical Adjustments131 ###S PwrAdj211 AD PwrAdj adjustmentsItemNo Display Specification value Measuring point VBsAdj VBsAdj adjustments261 AD Charge Function Check113 ###S 111 ###SDiscPr Resume Clear Servo Overall AdjustmentReleasing The Test Mode Block Diagram MD Servo Section Section DiagramsMIC Block Diagram Audio SectionCLK a Block Diagram Power Supply SectionAbbreviation EE East European model Conductor Side Pattern face are indicated Parts face sideLead layout of conventional IC 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 Uses unleaded solder Printed Wiring Board Main /2Semiconductor Location 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 SETCODE3Ref. No Description Section Exploded Views311 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.