Sony R501PC service manual 21ResOK?, 21Reset, 32Pw-T W, 62V1dat

Page 17

MZ-R501/R501PC

SECTION 5

ELECTRICAL ADJUSTMENTS

5-1. Outline

In this set, automatic adjustment of CD and MO can be per- formed by entering the test mode (see page 11).

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

A key having no particular description in the text, indicates a set key.

For the LCD display, the LCD display on the set is shown.

5-2. 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)

SONY MO disc available on the market

Digital voltmeter

• Laser power meter LPM-8001

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

• Thermometer (using the Temperature Correction)

3.Unless specified otherwise, supply DC 3V from the DC IN 3V jack (J601).

4.Switch position

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

• Setting method of NV reset

1.Select the manual mode of the test mode, and set item number 021NV Reset (see page 12).

This set LCD display

0 21 ResNV

2. Press the X key.

This set LCD display

021ResOK?

3.Press the X key once more.

This set LCD display

021Res

NV reset(after several seconds)

5-3. Adjustment Sequence

1.NV Reset(Memory clear)

2.Power Supply Manual Adjustment

3.Temperature Correction(item number:014)

4.Laser Power Check

5.Electrical offset Adjustment

Caution: This adjustment must be made with no disc loaded.

6.CD Overall Adjustment

7.MO Overall Adjustment

8.Mode Settings

9.RESUME Clear

Manual Mode

Overall Mode

Manual Mode

Overall Mode

Manual Mode

021Reset!

4.Press the x key to quit the manual mode, and activate the test mode (display check mode).

• Change of Adjusted Values

1.Item numbers in which the adjusted values are to be modified Item number 832

Item number 862 Item number 871 Item number 872

2.Adjusted values modifying procedure

1)Select the manual mode of the test mode, and set item number 832 (see page 12).

This set LCD display

8 32Pw-T W

2) Adjust with the [VOL+] key (adjusted value up) or [VOL--]

key (adjusted value down) so that the adjusted value becomes

E4.

This set LCD display

5-4. NV Reset

Caution: In this set, certain adjustment values are set in the manual mode at the factory. NV Reset will cause these data to be cleared. So, the adjustment values should be set again just after NV Reset is made.

8 32

SE4

: Address

E4: Adjusted value

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

4)Select the manual mode of the test mode, and set item number 862 (see page 12).

This set LCD display

862V1dat

17

Image 17
Contents LCX-4R SpecificationsMZ-R501/R501PC Flexible Circuit Board RepairingElectrical Adjustments Table of ContentsDisassembly DiagramsOptical PICK-UP Flexible Board Section Servicing NoteGeneral Looking at the controlsCase Upper Assy Section DisassemblyCase Lower Assy Main Board LCD ModuleMD Mechanism Deck Service ASSY, OP Motor Flexible Board Holder AssyDC Motor M601, DC Motor M603 DC Motor M60200 6 Section Test ModeManual Mode Configuration of Test ModeTransition method in Manual Mode 00Manual11OFEJ1D 113A4S1D11063B1D 11072A1DDescription of Error Indication Codes Reset the error display codeSetting method of Reset the Error Display Code Description of Indication History88RMC OK Sound Skip Check Result Display ModeKey Check Mode 88RMC OK 21ResOK? 21Reset21Res 32Pw-T W71V5num 62 S0171 S20 72V5dat14 S14 64V1 PWM10Laser 00ADJ OK12HrefPw Configuration of overall adjustment12###S 13WritPw35Ofst 00Assy00CD OK 00MO OK62***S20 Mode Settings62***S30 0000TimeMK68***S20 67***S6768***S01 43ResumeIC PIN Function Description Section DiagramsXtest MIC SenseMIFVSS3 SET KEYDSPVDD0 APCDSPVSS0 XtslSlcu SldwSlcv SlcwOpen Close SW CLK SELGND SW SET CODE0Sycn REC Xhold SWSync Level FlashvddMain Board Block Diagram Servo SectionMain Board Block Diagram Audio SectionBlock Diagram System Control / Power Section Main Board 3/3 System CONTROL/POWER SectionWaveforms Common note on Printed Wiring BoardSide a Printed Wiring Board Main Section Refer to page 33 for NoteSemiconductor Location Side B IC B/D Except US, CND Model C323 R314 C308 AP310 C102 C312 C307 IC501 SN761057DBT IC Block DiagramsIC701 SC111257FCR2 IC901 IC601IC302 TA2131FL IC301 AK5354VTPanel Section Section Exploded ViewsCase Upper Silver Case Upper Blue58 3-225-632-01 Spring LIMITER, Compression Chassis Section54 A-3323-653-A Main BOARD, Complete Except US,CND MD Mechanism Deck Section MT-MZR500-172 Section Main Electrical Parts List Diode Ceramic Chip 9PFDiode UDZ-TE-17-2.4B Jumper ResistorInductor JACK, DC Polarity Unified TypeCOIL, Choke Inductor ChipSWITCH, Slide Hold SwitchFILTER, Chip EMI Common Mode Network ResistorCONNECTOR, Optical Except R501US,E AccessoriesENGLISH,RUSSIAN,HUNGARIAN POLISH,CZECH,SLOVAKIAN Italian AEPMemo Date Description of Revision Revision History