Sony NEW, MDM-7A Higher Bits Lower Bits Hexa Details, Bit When Binary, Hexadecimal Binary

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Reading the Track Mode Display

 

Higher Bits

Lower Bits

Hexa-

 

Details

 

 

 

 

 

 

 

 

 

 

Hexadecimal

8

4

2

1

8

4

2

1

 

decimal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

b7

b6

b5

b4

b3

b2

b1

b0

 

When 0

 

When 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Binary

0

0

0

0

0

0

0

1

01

 

Emphasis OFF

 

Emphasis ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

0

0

1

0

02

 

Monaural

 

Stereo

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

0

1

0

0

04

 

This is 2-bit display. Normally 01.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

1

0

0

0

08

 

01:Normal audio. Others:Invalid

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

1

0

0

0

0

10

 

Audio (Normal)

 

Invalid

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

1

0

0

0

0

0

20

 

Original

 

Digital copy

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1

0

0

0

0

0

0

40

 

Copyright

 

No copyright

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

0

0

0

0

0

0

0

80

 

Write prohibited

 

Write allowed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reading the Display:

Convert the hexadecimal display into binary display. If more than two causes, they will be added.

Example When 84 is displayed: Higher bit : 8 = 1000 t b7 Lower bit : 4 = 0100 t b2

In this case, as b2 and b7 are 1 and others are 0, it can be determined that the retry cause is combined of “emphasis OFF”, “monaural”, “original”, “copyright exists”, and “write allowed”.

Example When 07 is displayed: Higher bit : 0 = 1000 tAll 0 Lower bit : 7 = 0111 t b0+b1+b2

In this case, as b0, b1, and b2 are 1 and others are 0, it can be determined that the retry cause is combined of “emphasis ON”, “stereo”, “original”, “copyright exists”, and “write prohibited”.

Hexadecimal t Binary Conversion Table

Hexadecimal

Binary

Hexadecimal

Binary

 

 

 

 

0

0000

8

1000

1

0001

9

1001

 

 

 

 

2

0010

A

1010

 

 

 

 

3

0011

B

1011

 

 

 

 

4

0100

C

1100

 

 

 

 

5

0101

D

1101

 

 

 

 

6

0110

E

1110

 

 

 

 

7

0111

F

1111

 

 

 

 

10

Image 10
Contents Inputs SpecificationsOutputs SELF-DIAGNOSIS Function Where purchased Power requirementsSupplied accessories GeneralItems of Error History Mode Items and Contents Diagrams Table of ContentsDisassembly Exploded ViewsFlexible Circuit Board Repairing Section Service NotesSafety CHECK-OUT LeakageJIG for Checking BD Board Waveform IOPRecord Precedure Forced Reset Checks Prior to Parts Replacement and AdjustmentsMain Board Component Side Retry Cause Display Mode Bit BinaryHigher Bits Lower Bits Hexa Details Bit When BinaryHexadecimal Binary Section General Section Disassembly Front Panel SectionMain Board PT BOARD, VOL-SEL BoardMechanism Deck Section MDM-7A BD BoardSetting the Test Mode Section Test ModePrecautions for USE of Test Mode Exiting the Test ModeSelecting the Test Mode Display Details Mark GroupOUT Operating the Continuous Playback ModeMID MENU/NOError rate display Test Mode DisplaysMode display Functions of Other ButtonsAutomatic SELF-DIAGNOSIS Function When Memory NG is DisplayedMeanings of Other Displays InformationParts Replacement and Adjustment Section Electrical AdjustmentsCheck before replacement Adjustment flow YESPrecautions for USE of Optical PICK- UP KMS-260B Precautions for Checking Laser Diode EmissionPrecautions for Adjustments Using the Continuously Recorded Disc Checks Prior to RepairsTraverse Check Auto CheckOther Checks Traverse WaveformFocus Bias Check Play Check MO Error Rate CheckCD Error Rate Check Self-Recording/playback CheckTemperature Compensation Offset Adjutment Initial Setting of Adjustment ValueLaser Power Adjustment Traverse Adjustment Iop NV SaveFocus Bias Adjustment YESCD Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points For printed wiring boards Section DiagramsFor schematic diagrams Circuit Boards LocationBlock Diagrams BD Section MDS-JE440Main Section Sclk Cclk Control Generator OSCMain Board BD BoardDisplay Board Printed Wiring Board BD Section SemiconductorPIN PIN Function Printed Wiring Board Main Section Side a Printed Wiring Board Main Section Side B PIN MDS-JE440 Schematic Diagram Main /3 See page 47 for IC Block Diagrams Printed Wiring Board Power Section Printed Wiring Board Display Section Schematic Diagram Display Section See page 34 for Waveforms IC Block Diagrams IC101 CXA2523AR BD BoardIC400 LA5643 Main Board IC PIN Functions Pin No Pin Name FunctionMNT2 Xbusy MNT0 FOKMNT1 Shck MNT3 SlocAsyi MvciAsyo AvddFrdr TfdrFfdr FS4IC1 M30805SGP System Control Main Board HLDA/ALE Section Exploded Views Chassis SectionNot supplied FL771 Mechanism MDM-7A 202 220 201 213 215 216 205 218 207259 Section Electrical Parts List Description Remarks Ref. NoIC TC7WU04FUTE12R SWITCH, Keyboard MENU/NO Display KEY-SWMain CN1Diode MA8047-TX Main VOL-SEL VibratorSony Corporation

KMS-2608/J1N, MDM-7A, NEW specifications

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