Sony MDS-PC3 specifications Diagrams

Page 35

SECTION 6 DIAGRAMS

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this, the necessary note is printed in each block.)

For schematic diagrams.

Note:

All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

All resistors are in and 1/4 W or less unless otherwise specified.

f : internal component.

2: nonflammable resistor.

5: fusible resistor.

C: panel designation.

Note:

Note:

The components identi-

Les composants identifiés par

fied by mark 0or dotted

une marque 0sont critiques

line with mark 0are criti-

pour la sécurité.

cal for safety.

Ne les remplacer que par une

Replace only with part

pié ce portant le numé ro

number specified.

spécifié.

 

 

U : B+ Line.

V : B– Line.

H: adjustment for repair.

Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions.

Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal produc- tion tolerances.

Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc- tion tolerances.

Circled numbers refer to waveforms.

Signal path.

E : PB

j : REC

p: PB (DIGITAL OUT)

l: REC (DIGITAL IN)

Abbreviation

CND

: Canadian model

SP

: Singapore model

MY

: Malaysia model

For printed wiring boards.

Note:

X: parts extracted from the component side.

Y: parts extracted from the conductor side.

a : Through hole.

b: Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)

Caution:

Pattern face side: Parts on the pattern face side seen from the

(Side B) pattern face are indicated.

Parts face side: Parts on the parts face side seen from the

(Side A)

parts face are indicated.

• Indication of transistor

B C E

These are omitted.

B C E

These are omitted.

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q

 

 

These are omitted.

 

 

 

 

 

B E

WAVEFORMS

– BD Board –

1 IC101 ek (RF)

5 IC151 wj (LRCK)

1.3Vp-p

3.2Vp-p

 

 

22.6sec

2 IC101 ef (FE)

6 IC151 wk (XBCK)

(Play mode)

 

0.2Vp-p

3.8Vp-p

 

 

354nsec

3 IC101 wh (TE)

7 IC151 o; (FS4)

(Play mode)

 

1.6Vp-p

3.2Vp-p

 

5.67sec

4 IC151 qh (OSCI)

8 IC171 3

3.1Vp-p

1.0Vp-p

22nsec

22nsec

 

– MAIN Board –

1 IC300 w; (XOUT)

2.6Vp-p

100nsec

2 IC550 2

0.7Vp-p

22nsec

3 IC451 3 (C1+)

4.8Vp-p

8sec

35 35

Image 35
Contents MDS-PC3 SpecificationsTOC t Edit t TOC Edit t blank t SELF-DIAGNOSIS FunctionItems of Error History Mode Items and Contents Table of Error Codes Table of ContentsDisassembly DiagramsLead free soldering Section Service NotesFlexible Circuit Board Repairing JIG for Checking BD Board Waveform Record Precedure Main Board Component Side Checks Prior to Parts Replacement and AdjustmentsForced Reset Bit Binary Retry Cause Display ModeHexadecimal t Binary Conversion Table General Section Remote Parts DescriptionUsing the Display Hooking Up MD Mechanism Deck MDM-7A Section DisassemblyOver Light Head HR901, BD MD Board Main BoardLoading Motor Assy M103 Holder AssyOptical PICK-UP MD KMS-260B/JIN Sled Motor Assy M102, SliderSpindle Motor Assy M101 Exiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test ModeDisplay Details Mark Group Selecting the Test ModeOperating the Continuous Playback Mode Functions of Other Buttons Test Mode DisplaysMode display Error rate displayInformation Meanings of Other DisplaysAutomatic SELF-DIAGNOSIS Function Check before replacement Section Electrical AdjustmentsParts Replacement and Adjustment Adjustment flow Precautions for Adjustments Precautions for Checking Laser Diode EmissionPrecautions for USE of Optical PICK- UP KMS-260B Checks Prior to Repairs Using the Continuously Recorded DiscOther Checks Auto CheckCD Error Rate Check Play Check MO Error Rate CheckLaser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Iop NV Save Traverse AdjustmentFocus Bias Adjustment MO Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment CD Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points Diagrams MDS-PC3 Block Diagrams BD SectionSclk Cclk Main SectionSemiconductor Printed Wiring Board BD SectionPIN Function MDS-PC3 Printed Wiring Board Main Section PIN Functon MDS-PC3 Printed Wiring Board Panel Section Schematic Diagram Panel Section See page 35 for Waveforms IC101 CXA2523AR BD Board IC Block DiagramsLB1830M-S-TE-L Main Board BH3541F-E2 Main Board IC101 CXA2523AR RF Amplifier BD Board IC PIN FunctionsMNT0 FOK Mvci IC300 M30805SGP Main Board Shck MNT1 Chassis Section Section Exploded Views319 302 320 317 304 308 303 305 306 301 318 307 Mechanism MDM-7A351 MechanismRemarks Ref. No Description Section Electrical Parts ListMetal Chip Main PIN, Connector 2P Diode Main Panel KEY REFLECT/PROTECT SW MDS-PC3 Panel