Sony MZ-B100 MIFVSS3, Xrst, Rec Key, Half Lock SW, Avss, Vdiosc, Osci, Osco, Vsiosc, Vrefl, Vrefr

Page 25

MZ-B100

• IC801 CXD2671-209GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM)

Pin No.

Pin name

I/O

Description

 

 

 

 

 

 

 

 

1

MICAMP CTL

O

MIC AMP ON/OFF control output

 

 

 

 

 

 

 

 

2

XHP DET

I

Headphones connection detect input

 

 

 

 

 

 

 

 

3

V UP

O

Volume control output

 

 

 

 

 

 

 

 

4

SP AMP

O

Speaker amplifier ON/OFF control output

 

 

 

 

 

 

 

 

5

XMONO MODE

O

MONO/STEREO control output

 

 

 

 

 

 

 

6

MCUVDD0

—

Power supply terminal (for microcomputer block) (+1.5V)

 

 

 

 

 

 

 

7

MIFVSS3

—

Ground terminal (for microcomputer I/F)

 

 

 

 

 

 

 

8

XRST

I

System reset signal input terminal from the power control (IC901)

“L”: reset

 

 

 

 

9

S MON

I

Servo signal monitor input terminal (A/D input) from RF amp (IC501)

 

 

 

 

10

VB MON

I

Voltage monitor input terminal of UNREG power supply (A/D input)

 

 

 

 

 

11

CHG MON

I

Charge voltage monitor input terminal (A/D input) from IC601

 

 

 

 

 

12

VREF MON

I

Clear reference monitor voltage input terminal (A/D input) from RF amp (IC501)

 

 

 

 

 

13 to 15

SET KEY 1 – 3

I

Key input terminal from the switch & LCD module (A/D input)

 

 

 

 

 

 

 

16

HIDC MON

I

HIGH DC voltage monitor input terminal (A/D input)

 

 

 

 

 

 

 

17

WK DET

I

Set key start switching detection signal input terminal (A/D input)

 

 

 

 

 

 

 

18

REC KEY

I

REC key input terminal (A/D input)

 

 

 

 

 

 

 

19

HALF LOCK SW

I

Open button detection switch (S805) input terminal (A/D input)

Input “L” when the

open button is pressed. Input “H” in other cases.

 

 

 

 

 

 

 

 

 

 

 

20

RMC KEY

I

Key input terminal (A/D input) from the remote commander attached headphone

 

 

 

 

 

21

AVDD

—

Power supply terminal (for the analog circuit block) (+2.8V)

 

 

 

 

 

 

 

22

AVSS

—

Ground terminal (for the analog circuit block)

 

 

 

 

 

 

 

 

23

VDIOSC

—

Power supply terminal (for OSC cell) (+2.4V)

 

 

 

 

 

 

 

 

24

OSCI

I

System clock (45.1584MHz) input terminal

 

 

 

 

 

 

 

 

25

OSCO

O

System clock (45.1584MHz) output terminal

 

 

 

 

 

 

 

 

26

VSIOSC

—

Ground terminal (for OSC cell)

 

 

 

 

 

 

 

27

DAVDD

—

Power supply terminal (for the built-in D/A converter) (+2.4V)

 

 

 

 

 

28

VREFL

I

Reference voltage input terminal (for the internal D/A converter L-CH)

 

 

 

 

 

 

29

AOUTL

O

Built-in D/A converter (L-CH) output terminal

 

 

 

 

 

 

 

 

30

AOUTR

O

Built-in D/A converter (R-CH) output terminal

 

 

 

 

 

 

31

VREFR

I

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

 

 

 

 

 

 

32

DAVSS

—

Ground terminal (for the built-in D/A converter)

 

 

 

 

 

 

 

 

33

ASYO

O

Playback EFM duplex signal output terminal

 

 

 

 

 

 

 

 

34

ASYI

I

Playback EFM comparison slice level input terminal

 

 

 

 

 

 

 

 

35

AVD1

—

Ground terminal (for the analog) (+2.4V)

 

 

 

 

 

 

 

36

BIAS

I

Bias current input terminal for the playback EFM comparison

 

 

 

 

 

 

 

37

RFI

I

Playback EFM RF signal input from RF amp (IC501)

 

 

 

 

 

 

 

 

38

AVS1

—

Ground terminal (for the analog)

 

 

 

 

 

 

39

PCO

O

Phase comparison output terminal for the playback EFM system master PLL

 

 

 

 

 

40

PDO

O

Phase comparison output terminal for the analog PLL

Not used (open)

 

 

 

 

 

41

FILI

I

Filter input terminal for the playback EFM system master PLL

 

 

 

 

 

 

42

FILO

O

Filter output terminal for the playback EFM system master PLL

 

 

 

 

 

43

CLTV

I

Internal VCO control voltage input for the playback EFM system master PLL

 

 

 

 

44

PEAK

I

Peak hold signal input of the light amount signal (RF/ABCD) from RF amp (IC501)

 

 

 

 

45

BOTM

I

Bottom hold signal input of the light amount signal (RF/ABCD) from RF amp (IC501)

 

 

 

 

 

46

ABCD

I

Light amount signal (ABCD) input from RF amp (IC501)

 

 

 

 

 

 

 

47

FE

I

Focus error signal input from RF amp (IC501)

 

 

 

 

 

 

48

AUX1

I

Support signal (I3 signal/temperature signal) input terminal (A/D input)

 

 

 

 

 

 

49

VC

I

Middle point voltage (+1.2V) input terminal

 

 

 

 

 

 

 

50

ADIO

O

Monitor output terminal of A/D converter input signal

Not used (open)

 

 

 

 

51

ADRT

I

A/D converter the upper limit voltage input terminal (fixed at “H” in this set)

 

 

 

 

 

 

25

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Page 24 Page 26
Contents MZ-B100 SpecificationsDisassembly Table of ContentsDiagrams Flexible Circuit Board RepairingUnleaded Solder Section Servicing NotesLead Free Mark EepromLocation and Function of Controls Section GeneralFront of the recorder REVIEW/AMS/ CUE/AMSDisplay window Remote controlREVIEW/AMS Panel Lower Assy Section DisassemblyMain Board KEY Board Unit Cabinet Belt SectionMechanism Deck Gear SA Screw M1.4 Optical PICK-UP Block LCX-4RMOTOR, DC Sled M602 Holder AssyQs chassis assy, gear Setting Method of Test Mode Section Test ModeOperation in Setting the Test Mode Releasing the Test ModeManual Mode Configuration of Test ModeMajor item switching 731 Overall Adjustment ModeSetting method of Sound Skip Check Result Display Mode Sound Skip Check Result Display Mode000 000 R # # # # Self-Diagnosis Display ModeClearing Self-Diagnosis Data and Total Recording Time Description of Error Indication CodesDescription of Indication History RECKey Indication Key Check ModePrecautions for Adjustment Section Electrical AdjustmentsAdjustment Sequence NV ResetAdjustment method of Vrem PWM Duty L mode number Adjustment method of VC PWM Duty L mode numberAdjustment method of Vrem PWM Duty H mode number 765 Adjustment method of VC PWM Duty H mode number767 766Adjustment Method of temperature correction Temperature CorrectionAdjustment Method of Overall Adjustment Mode 014Connection Laser Power Check141 043Section DiagramsExplanation of IC Terminals Pin No Pin name DescriptionXrst MIFVSS3REC KEY Half Lock SWAPC AdrbDSPVDD0 DSPVSS0Slcw SlcvDIFVDD1 DIFVSS1SET CODE1 SET CODE0SET CODE2 MIFVSS1Waveforms REC Analog Block Diagram Main /33131 3232 Uses unleaded solder Printed Wiring Board Main /2Refer to page 29 for Notes SemiconductorMain Board +B Switch Sledn 3737 CLV IC301 AK5354VT-E2 IC Block DiagramsXPC18A22FCR2 IC701 SC111258FCR2 Panel Lower Section Exploded Views5354 Panel Upper LID Section116 103 108 109 111 110 112 113 114 102 117 101 115 118 107 106 116 105Mechanism Deck Section MT-MZB100-171 Main Section Electrical Parts ListTantalum TC7W66FKTE85R Transistor R222 218-977-11 Valiable Resistor Revision History
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Manual 28 pages 54.99 Kb

MZ-B100 specifications

The Sony MZ-B100 is a remarkable mini disc player that stands out for its innovative features and technologies, catering to music enthusiasts and professionals alike. Released in the early 2000s, it represents a significant advancement in portable audio technology, combining convenience with high-quality sound reproduction.

One of the key features of the MZ-B100 is its lightweight and compact design, making it highly portable. It allows users to enjoy their favorite music on the go without being burdened by heavy equipment. The device supports the MiniDisc format, which was widely appreciated for its ability to store high-quality audio while offering the flexibility of recording and erasing tracks easily.

The MZ-B100 boasts a range of audio recording capabilities. With its built-in microphone, users can easily capture live performances, meetings, or personal notes. The player features a record timer, which enables timed recordings, an invaluable tool for those who need to capture audio at specific moments. Additionally, the unit supports various recording modes, including LP2 and LP4, allowing users to choose between quality and capacity.

In terms of sound quality, the MZ-B100 employs Sony's ATRAC compression technology. This technology preserves the audio quality while minimizing file sizes, enabling users to store more tracks on a single MiniDisc. The device also includes a digital pitch control feature, which allows users to adjust the playback speed without altering the pitch. This is particularly useful for musicians practicing with recorded accompaniments.

Another standout characteristic of the MZ-B100 is its battery life. Equipped with rechargeable batteries, the device provides extended playback time, ensuring that users can enjoy hours of music without frequent recharges. The user interface is intuitive, featuring a clear display that makes navigation through tracks and playlists seamless.

Connectivity is another important aspect of the MZ-B100. It includes various input and output options, allowing users to connect the player to external audio systems, enabling them to play music through larger speakers or transfer recordings to a computer.

Overall, the Sony MZ-B100 mini disc player is a well-rounded device packed with advanced features aimed at enhancing the listening experience. Its portability, sound quality, and intuitive functionality make it a noteworthy choice for anyone seeking a reliable audio recording and playback solution. The MZ-B100 remains a testament to Sony's commitment to innovation in the world of personal audio technology.
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