Sony MDS-PC3 User Manual
Page 35
35
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
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
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.)
•
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
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
MY
: Malaysia 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.
• Indication of transistor
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 por tant le numéro
spécifié.
• WAVEFORMS
– MAIN Board –
– BD Board –
IC300
w;
(XOUT)
IC550
2
IC451
3
(C1+)
2.6Vp-p
100nsec
0.7Vp-p
22nsec
8
µ
sec
4.8Vp-p
IC101
ek
(RF)
IC101
ef
(FE)
(Play mode)
IC101
wh
(TE)
(Play mode)
IC151
qh
(OSCI)
IC151
wj
(LRCK)
IC151
wk
(XBCK)
IC151
o;
(FS4)
IC171
3
1.3Vp-p
0.2Vp-p
1.6Vp-p
3.1Vp-p
22nsec
3.2Vp-p
22.6
µ
sec
3.8Vp-p
354nsec
1.0Vp-p
22nsec
3.2Vp-p
5.67
µ
sec