Sony R501PC service manual 62 S01, 71V5num, 71 S20, 72V5dat, 72 S39, 00Assy11, 62Vc1PWM, 63VchPWM

Page 18

MZ-R501/R501PC

5)Adjust with the [VOL+] key (adjusted value up) or [VOL--]key (adjusted value down) so that the adjusted value becomes

01.

This set LCD display

862S01

:Address

01: Adjusted value

6)Press the X key to write the adjusted value.

7)Select the manual mode of the test mode, and set item number 871 (see page 12).

This set LCD display

871V5num

8)Adjust with the [VOL+] key (adjusted value up) or [VOL--]key (adjusted value down) so that the adjusted value becomes 20.

This set LCD display

871S20

: Address

20: Adjusted value

9)Press the X key to write the adjusted value.

10)Select the manual mode of the test mode, and set item number 872 (see page 12).

This set LCD display

872V5dat

11)Adjust with the [VOL+] key (adjusted value up) or [VOL--]key (adjusted value down) so that the adjusted value becomes 39.

This set LCD display

872S39

: Address

39: Adjusted value

12) Press the X key to write the adjusted value.

5-5. Power Supply Manual Adjustment

• Adjustment sequence

Adjustment must be done with the following steps.

1.Vc PWM Duty (L) adjustment (item number 762)

2.Vc PWM Duty (H) adjustment (item number 763)

3.Vl PWM Duty adjustment (item number 764)

• Setting method of power supply manual adjustment

1.Make sure that the power supply voltage is 3V.

2.Set the test mode (see page 11).

3.Press the . or [VOL--]key to activate the overall adjustment

mode.

This set LCD display

000Assy11

4.Press the [END SEARCH] key. (the [END SEARCH] key causes the item number to be switched to 762.)

Adjustment method of Vc PWM Duty (L) (item number: 762)

This set LCD display

762Vc1PWM

1.Press the [ENTER] key and set the address & adjusted value display (see page 13).

This set LCD display

7 62 AD

: Adjusted value

2.Connect a digital voltmeter to the TP902 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --]key (voltage down) so that the voltage becomes 2.40 ± 0.01 V.

digital

voltmeter

MAIN board

TP902(VC)

TP910(GND)

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

(The item number changes to 763 when X key is pressed)

Adjustment and Connection Location: MAIN board (see page 20)

Adjustment method of Vc PWM Duty (H) (item number: 763)

This set LCD display

763VchPWM

1.Press the [ENTER] key and change the LCD display.

This set LCD display

763 AD

: Adjusted value

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Contents Specifications LCX-4RFlexible Circuit Board Repairing MZ-R501/R501PCDisassembly Table of ContentsElectrical Adjustments DiagramsSection Servicing Note Optical PICK-UP Flexible BoardLooking at the controls GeneralSection Disassembly Case Lower AssyCase Upper Assy LCD Module Main BoardMD Mechanism Deck Service ASSY, OP Holder Assy Motor Flexible BoardDC Motor M602 DC Motor M601, DC Motor M603Section Test Mode 00 6Transition method in Manual Mode Configuration of Test ModeManual Mode 00Manual11063B1D 113A4S1D11OFEJ1D 11072A1DSetting method of Reset the Error Display Code Reset the error display codeDescription of Error Indication Codes Description of Indication HistorySound Skip Check Result Display Mode Key Check Mode88RMC OK 88RMC OK 21Res 21Reset21ResOK? 32Pw-T W71 S20 62 S0171V5num 72V5dat10Laser 64V1 PWM14 S14 00ADJ OK12###S Configuration of overall adjustment12HrefPw 13WritPw00CD OK 00Assy35Ofst 00MO OK62***S30 Mode Settings62***S20 0000TimeMK68***S01 67***S6768***S20 43ResumeSection Diagrams IC PIN Function DescriptionMIFVSS3 MIC SenseXtest SET KEYDSPVSS0 APCDSPVDD0 XtslSlcv SldwSlcu SlcwGND SW CLK SELOpen Close SW SET CODE0Sync Level Xhold SWSycn REC FlashvddBlock Diagram Servo Section Main BoardBlock Diagram Audio Section Main BoardMain Board 3/3 System CONTROL/POWER Section Block Diagram System Control / Power SectionCommon note on Printed Wiring Board WaveformsPrinted Wiring Board Main Section Refer to page 33 for Note Side aSemiconductor Location Side B IC B/D Except US, CND Model C323 R314 C308 AP310 C102 C312 C307 IC Block Diagrams IC501 SN761057DBTIC701 SC111257FCR2 IC601 IC901IC301 AK5354VT IC302 TA2131FLCase Upper Silver Section Exploded ViewsPanel Section Case Upper BlueChassis Section 54 A-3323-653-A Main BOARD, Complete Except US,CND58 3-225-632-01 Spring LIMITER, Compression MD Mechanism Deck Section MT-MZR500-172 Section Main Electrical Parts List Diode UDZ-TE-17-2.4B Ceramic Chip 9PFDiode Jumper ResistorCOIL, Choke JACK, DC Polarity Unified TypeInductor Inductor ChipFILTER, Chip EMI Common Mode SwitchSWITCH, Slide Hold Network ResistorENGLISH,RUSSIAN,HUNGARIAN POLISH,CZECH,SLOVAKIAN AccessoriesCONNECTOR, Optical Except R501US,E Italian AEPMemo Revision History Date Description of Revision