Sony MDS-PC3 Diagrams, For schematic diagrams, For printed wiring boards, •WAVEFORMS – BD Board

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 Ω 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 MΩ). 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
	22.6∝sec
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
	5.67∝sec
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

8∝sec

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