Sony MZ-B100 specifications Adjustment method of VC PWM Duty H mode number, 765, 767, 766

Page 21

MZ-B100

Adjustment method of VC PWM Duty (H) (mode number: 765)

1.Select the manual mode of the test mode, and set the mode number 765. (See page 13)

LCD display

V c h P W M

765

2.Connect a digital voltmeter to the AP913 (VC) on the MAIN board, and adjust [EASY SEARCH +] key (voltage up) or

[EASY SEARCH --]key (voltage down) so that the voltage becomes 2.75 ± 0.02 V.

Proceed to the next step without pressing X key if voltage is already adjusted.

digital voltmeter

AP913 (VC)

 

 

 

 

 

 

 

digital

 

 

 

 

 

 

 

voltmeter

 

 

 

 

 

AP912 (VL)

MAIN BOARD

 

 

 

AP909

(SIDE A)

 

 

 

(GND)

9

R92

C9

 

 

AP912

 

 

 

 

 

 

 

C922

 

C926

 

(VL)

 

 

 

C925

 

 

 

 

 

 

 

 

 

C924

 

 

 

 

 

 

 

D903

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

25

20

 

14

 

AP909

C915

C912

 

 

(GND)

 

 

 

 

 

 

 

 

 

 

 

 

IC901

10

 

 

 

 

 

 

C913

R920

 

 

 

 

 

5

R919

 

 

 

 

 

 

 

 

 

45

50

 

1

 

 

 

R5

 

 

56

 

 

 

 

 

AP909

 

 

(GND)

MAIN BOARD

 

 

(SIDE A)

 

 

 

 

C9

 

AP912

 

 

C926

 

 

 

 

(VL)

 

 

 

 

 

 

C925

 

 

 

 

C924

 

D903

 

 

15

 

 

 

 

 

 

 

14

 

AP909

C915

C912

 

(GND)

 

 

 

 

 

10

 

 

 

 

 

C913

R920

 

 

5

R919

 

 

 

 

 

 

1

 

 

 

 

56

 

 

 

 

AP913 (VC)

C502

R501

C902

3. Press the X key to write the adjusted value.

Adjustment method of VREM PWM Duty (L)

(mode number: 767)

1.Select the manual mode of the test mode, and set the mode number 767. (See page 13)

LCD display

V r l V c h

767

2. Connect a digital voltmeter to the AP912 (VL) on the MAIN

board, and adjust [EASY SEARCH +] key (voltage up) or

[EASY SEARCH --]key (voltage down) so that the voltage

becomes 2.5 ± 0.02 V.

Proceed to the next step without pressing X key if voltage is

already adjusted.

3. Press the X key to write the adjusted value.

Adjustment method of VREM PWM Duty (H) (mode number: 766)

1.Select the manual mode of the test mode, and set the mode number 766. (See page 13)

LCD display

V r h V c h

766

2.Connect a digital voltmeter to the AP912 (VL) on the MAIN board, and adjust [EASY SEARCH +] key (voltage up) or

[EASY SEARCH --]key (voltage down) so that the voltage becomes 2.75 ± 0.02 V.

Proceed to the next step without pressing X key if voltage is already adjusted.

3. Press the X key to write the adjusted value.

 

 

 

 

 

 

 

digital

 

 

 

 

 

 

 

voltmeter

 

 

 

 

 

AP912 (VL)

MAIN BOARD

 

 

 

AP909

(SIDE A)

 

 

 

(GND)

19

R92

C9

 

 

AP912

 

 

 

 

 

 

 

 

 

 

C926

 

 

 

C922

 

 

(VL)

 

 

 

 

 

 

 

 

 

C925

 

 

 

 

 

 

 

 

 

 

 

 

C924

 

D903

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

25

20

 

14

 

AP909

C915

C912

 

 

(GND)

 

 

 

 

 

 

 

 

 

 

 

 

 

IC901

10

 

 

 

 

 

 

C913

R920

 

 

 

 

 

5

R919

 

 

 

 

 

 

 

 

 

45

50

 

1

 

 

 

R5

 

 

56

 

 

 

 

C902

 

 

 

 

 

 

 

 

 

 

 

21

Image 21
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/AMSRemote control Display windowREVIEW/AMS Section Disassembly Panel Lower AssyMain 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 ModeConfiguration of Test Mode Manual ModeMajor item switching 731 Overall Adjustment ModeSound Skip Check Result Display Mode Setting method of 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 VC PWM Duty L mode number Adjustment method of Vrem 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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MZ-B100 specifications

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