Sony MZ-B100 Section Electrical Adjustments, Precautions for Adjustment, Adjustment Sequence

Page 19

MZ-B100

SECTION 5

ELECTRICAL ADJUSTMENTS

[Outline]

In this set, automatic adjustment of CD and MO can be per- formed by entering the test mode. (See page 12)

However, before starting automatic adjustment, the memory clear, power adjustment and temperature adjustment must be performed in the manual mode.

The keys in the description refer to the keys on both set and remote commander unless otherwise specified.

Though LCD display shows the LCD of the remote commander, same contents are also displayed on the LCD of the set.

[Precautions for Adjustment]

1.Adjustment must be done in the test mode only. After adjusting, release the test mode.

2.Use the following tools and measuring instruments.

Test CD disc

TDYS-1

 

 

(Part No. : 4-963-646-01)

 

Available SONY CD disc

Recorded MO disc

PTDM-1

 

 

(Part No. : J-2501-054-A)

 

Available SONY MO disc (recorded)

Laser power meter

LPM-8001

 

 

(Part No. : J-2501-046-A)

• Digital voltmeter

3.Unless specified otherwise, supply DC 3V from the DC IN 3V jack.

4.Switch position

HOLD switch ................ OFF

[Adjustment Sequence]

Adjustment must be done with the following steps.

1.

NV Reset (Memory clear)

 

 

 

r

 

 

 

2.

Power Supply Manual Adjustment

Manual Mode

 

r

 

 

 

3.

Temperature correction

 

 

 

 

r

 

4.

CD Overall Adjustment

 

 

 

r

Overall Mode

5.

MO Overall Adjustment

 

 

[NV Reset]

• Setting method of NV reset

1.Select the manual mode of test mode, and set mode num- ber 021NV Reset.

LCD display

R e s N V

021

2.Press the X key.

LCD display

R e s O K ?

021

3. Press the X key once more.

LCD display

R e s * * *

021

rNV reset (after several seconds)

R e s e t !

021

4. Quit the manual mode, and activate the test mode.

[Power Supply Manual Adjustment]

• Adjustment sequence

Adjustment must be done with the following steps.

1.VC PWM Duty (L) adjustment (mode number: 762) r

2.VREM PWM Duty (H) adjustment (mode number: 763) r

3.VREM PWM Duty (L) adjsutment (mode number: 764) r

4.VC PWM Duty (H) adjustment (mode number: 765)

r

5.VREM PWM Duty (H) adjustment (mode number: 766) r

6.VREM PWM Duty (L) adjustment (mode number: 767)

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Contents MZ-B100 SpecificationsFlexible Circuit Board Repairing Table of ContentsDisassembly DiagramsEeprom Section Servicing NotesUnleaded Solder Lead Free MarkREVIEW/AMS/ CUE/AMS Section GeneralLocation and Function of Controls Front of the recorderDisplay 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 Releasing the Test Mode Section Test ModeSetting Method of Test Mode Operation in Setting 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 ModeREC Description of Error Indication CodesClearing Self-Diagnosis Data and Total Recording Time Description of Indication HistoryKey Indication Key Check ModeNV Reset Section Electrical AdjustmentsPrecautions for Adjustment Adjustment SequenceAdjustment 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 766 Adjustment method of VC PWM Duty H mode number765 767014 Temperature CorrectionAdjustment Method of temperature correction Adjustment Method of Overall Adjustment Mode043 Laser Power CheckConnection 141Pin No Pin name Description DiagramsSection Explanation of IC TerminalsHalf Lock SW MIFVSS3Xrst REC KEYDSPVSS0 AdrbAPC DSPVDD0DIFVSS1 SlcvSlcw DIFVDD1MIFVSS1 SET CODE0SET CODE1 SET CODE2Waveforms REC Analog Block Diagram Main /33131 3232 Semiconductor Printed Wiring Board Main /2Uses unleaded solder Refer to page 29 for NotesMain 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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