Diagrams - Sony MDS-PC3 M-crew Service Manual

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 / W or less unless otherwise
4
specified.
• : internal component.
f
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note: Note:
The components identi- Les composants identifiés par
une marque 0 sont critiques
fied by mark 0 or dotted
line with mark 0 are criti- pour la sécurité.
cal for safety. Ne les remplacer que par une
Replace only with part piéce por tant le numéro
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.
• : Through hole.
a
• 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 5
IC101 ek (RF)
IC151 wj (LRCK)
1.3Vp-p
22.6µsec
2
6
IC101 ef (FE) IC151 wk (XBCK)
(Play mode)
0.2Vp-p
3 7
IC101 wh (TE)
IC151 o; (FS4)
(Play mode)
1.6Vp-p
4
8
IC151 qh (OSCI)
IC171 3
3.1Vp-p
22nsec
22nsec
35 35
– MAIN Board –
1
IC300 w; (XOUT)
3.2Vp-p
100nsec
2
IC550 2
3.8Vp-p
22nsec
354nsec
3
IC451 3 (C1+)
3.2Vp-p
8µsec
5.67µsec
1.0Vp-p
2.6Vp-p
0.7Vp-p
4.8Vp-p