Sony MZ-B100 specifications Adjustment method of VC PWM Duty L mode number

Page 20

MZ-B100

Adjustment method of VC PWM Duty (L) (mode number: 762)

1.Select the manual mode of the test mode, and set the mode number 762. (See page 13)

LCD display

V c l P W M

762

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 2.5 ± 0.02 V.

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

digital voltmeter

AP913 (VC)

digital voltmeter

AP913 (VC)

 

 

AP909

 

 

(GND)

MAIN BOARD

 

 

(SIDE A)

 

 

 

 

C9

 

AP912

 

 

C926

 

 

 

 

(VL)

 

 

 

 

 

 

C925

 

 

 

 

C924

 

D903

 

 

15

 

 

 

 

 

 

 

14

 

AP909

C915

C912

 

(GND)

 

 

 

 

 

10

 

 

 

 

 

C913

R920

 

 

5

R919

 

 

 

 

 

 

AP913 (VC)

C502

AP909

(GND)

MAIN BOARD

1

56

R501

(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

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

Adjustment method of VREM PWM Duty (L) (mode number: 764)

1.Select the manual mode of the test mode, and set the mode number 764. (See page 13)

LCD display

V r l V c l

764

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

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

• Adjustment method of VREM PWM Duty (H) (mode number: 763)

1.Select the manual mode of the test mode, and set the mode number 763. (See page 13)

LCD display

V r h V c l

763

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.

already adjusted.

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

3.

Press the

X key to write the adjusted value.

20

Image 20
Contents Specifications MZ-B100Table of Contents DisassemblyDiagrams Flexible Circuit Board RepairingSection Servicing Notes Unleaded SolderLead Free Mark EepromSection General Location and Function of ControlsFront of the recorder REVIEW/AMS/ CUE/AMSREVIEW/AMS Remote controlDisplay window Main Board Section DisassemblyPanel Lower Assy Cabinet Belt Section KEY Board UnitMechanism Deck Optical PICK-UP Block LCX-4R Gear SA Screw M1.4Holder Assy MOTOR, DC Sled M602Qs chassis assy, gear Section Test Mode Setting Method of Test ModeOperation in Setting the Test Mode Releasing the Test ModeMajor item switching Configuration of Test ModeManual Mode Overall Adjustment Mode 731000 Sound Skip Check Result Display ModeSetting method of Sound Skip Check Result Display Mode Self-Diagnosis Display Mode 000 R # # # #Description of Error Indication Codes Clearing Self-Diagnosis Data and Total Recording TimeDescription of Indication History RECKey Check Mode Key IndicationSection Electrical Adjustments Precautions for AdjustmentAdjustment Sequence NV ResetAdjustment method of Vrem PWM Duty H mode number Adjustment method of VC PWM Duty L mode numberAdjustment method of Vrem PWM Duty L mode number Adjustment method of VC PWM Duty H mode number 765767 766Temperature Correction Adjustment Method of temperature correctionAdjustment Method of Overall Adjustment Mode 014Laser Power Check Connection141 043Diagrams SectionExplanation of IC Terminals Pin No Pin name DescriptionMIFVSS3 XrstREC KEY Half Lock SWAdrb APCDSPVDD0 DSPVSS0Slcv SlcwDIFVDD1 DIFVSS1SET CODE0 SET CODE1SET CODE2 MIFVSS1Waveforms Block Diagram Main /3 REC Analog3131 3232 Printed Wiring Board Main /2 Uses unleaded solderRefer to page 29 for Notes SemiconductorMain Board +B Switch Sledn 3737 CLV IC Block Diagrams IC301 AK5354VT-E2XPC18A22FCR2 IC701 SC111258FCR2 Exploded Views Panel Lower SectionPanel Upper LID Section 5354118 107 106 116 105 116 103 108 109 111 110 112 113 114 102 117 101 115Mechanism Deck Section MT-MZB100-171 Section Electrical Parts List MainTantalum TC7W66FKTE85R Transistor R222 218-977-11 Valiable Resistor Revision History
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MZ-B100 specifications

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