Sony MDS-JE470 Service Manual - Page 37

This Note Is Common For Printed Wiring, Boards And Schematic Diagrams.

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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. • C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Note: Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié. • A : B+ Line. • B : B- Line. • H : adjustment for repair. • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : STOP ( ) : PLAY < > : REC ∗ : Impossible to measure • Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances. • Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production 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 HK : Hong Kong model AUS : Australian 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. BCE These are omitted. BCE These are omitted. C Q These are omitted. BE • WAVEFORMS - BD Board - 1 IC101 ek (RF) 1.3Vp-p 2 IC101 ef (FE) (Play mode) 0.2Vp-p 3 IC101 wh (TE) (Play mode) 1.6Vp-p 4 IC151 qh (OSCI) 3.1Vp-p 22 nesc 5 IC151 wj (LRCK) 3.2Vp-p 22.6 µsec 6 IC151 wk (XBCK) 3.8Vp-p 354 nsec 7 IC151 o; (FS4) 5.67 µsec 8 IC171 3 3.2Vp-p 1.0Vp-p 22 nsec 37 37 MDS-JE470 - MAIN Board - 1 IC1 qd (XOUT) 100 nsec 2 IC550 qs 2.7Vp-p 22 nsec 2.6Vp-p

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37
37
MDS-JE470
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
µ
F unless otherwise noted.
pF:
µµ
F
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.
•
C
: panel designation.
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.)
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark
: STOP
(
)
: PLAY
<
>
: REC
∗
: Impossible to measure
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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
HK
: Hong Kong model
AUS
: Australian model
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.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
B
These are omitted.
C
E
Note:
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
• WAVEFORMS
– MAIN Board –
– BD Board –
1
IC101
ek
(RF)
2
IC101
ef
(FE)
(Play mode)
3
IC101
wh
(TE)
(Play mode)
4
IC151
qh
(OSCI)
5
IC151
wj
(LRCK)
6
IC151
wk
(XBCK)
7
IC151
o;
(FS4)
8
IC171
3
1.3Vp-p
0.2Vp-p
1.6Vp-p
3.1Vp-p
22 nesc
3.2Vp-p
22.6
µ
sec
3.8Vp-p
354 nsec
22 nsec
5.67
µ
sec
1.0Vp-p
3.2Vp-p
1
IC1
qd
(XOUT)
2
IC550
qs
2.7Vp-p
2.6Vp-p
100 nsec
22 nsec