Sony HCD-J300 Service Manual page 41

Q Q
3 7 6 3 1 5 1 5 0
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.
• 1 : fusible resistor.
• C : panel designation.
Note: Note:
Les composants identifiés par
The components identi-
une marque ! sont critiques
fied by mark ! or dotted
pour la sécurité.
line with mark ! are criti-
Ne les remplacer que par une
cal for safety.
piéce portant le numéro
Replace only with part
spécifié.
number specified.
• A : B+ Line.
• B : 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.
T E
• Signal path. L 1 3 9 4 2 2 9 6 5 1 3
F : FM
g : VIDEO/MD (AUDIO)
E : PB (TAPE)
a : REC (TAPE)
J : CD (Analog)
c : CD (DIGITAL OUT)
p : MD (PB)
l : MD (REC)
• Abbreviation
HK : Hong Kong model
SP : Singapore model
TW : Taiwan 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.
w w w
.
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• Indication of transistor
B C E
These are omitted.
B C E
These are omitted.
C
Q These are omitted.
B E
x a o u 1 6 3
y
i
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• Waveforms
8 9
1 2
IC101 us XTAO
4.6 Vp-p
30 ns
VOLT/DIV : 1V AC
TIME/DIV : 20 nsec
4 5
IC306 qa XCOUT
3.4Vp-p
31 µ s
VOLT/DIV : 1V AC
TIME/DIV : 20 µ sec
7 8
IC101 ef (FE)
(Play mode) (Play mode)
0.2Vp-p
Q Q
3 7 6 3 1 5 1
c o
.
41 41
2 4 2
9 8
3
IC1001 w; XOUT IC309 qf XO
3.4 Vp-p 4 Vp-p
100 ns 231 ns
VOLT/DIV : 1V AC VOLT/DIV : 1V AC
TIME/DIV : 40 nsec TIME/DIV : 100 nsec
6
IC306 qd XOUT IC101 ek (RF)
4.4 Vp-p
63 ns 1.3Vp-p
VOLT/DIV : 1V AC
TIME/DIV : 40 nsec
9
IC101 wh (TE) IC151 o; (FS4)
3.5Vp-p
1.6Vp-p 176.4kHz
5 0 8 9 2 4 9 8
m
HCD-J300
9 9
2 9 9