Sony HCD-HPX7 Service Manual - Page 58

Note For Printed Wiring Boards And Schematic Diagrams

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HCD-HPX7 NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Boards: • X : parts extracted from the component side. • Y : parts extracted from the conductor side. • W : indicates side identified with part number. • f : internal component. • : 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 (Conductor Side) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Component Side) the parts face are indicated. • Indication of transistor. C Q These are omitted. BE Q BCE These are omitted. • Waveforms - CD Board - 1 IC101 yd (LRCK) 3 IC101 uj (XTAO) 4.4 Vp-p 4.5 Vp-p Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. (p: pF) 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: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. • A : B+ Line. • B : B- Line. • Voltages and waveforms are dc with respect to ground un- der no-signal conditions. • 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. F : TUNER (FM/AM) E : TAPE PLAY a : TAPE REC J : CD PLAY L : AUX IN • Abbreviation AUS : Australian model CND : Canadian model E3 : 240 V AC area in E model KR : Korean model MX : Mexican model TW : Taiwan model - MAIN Board - 1 Q303, 304 (Collector) 4 IC306 qd (XOUT) (REC Mode) 12.4 Vp-p 2 Vp-p 22.8 µs 2 IC101 yh (BCK) 59 ns 4 IC101 ra (PFACO) 4.5 Vp-p 472 ns Approx. 700 mVp-p 21.2 µs 2 Q303, 304 (Base) (REC Mode) 62.6 ns 5 IC306 of (TC END SW) (Tape Play Mode) 2.6 Vp-p 6.3 Vp-p 21.2 µs 2 s 3 IC306 qa (XCOUT) 30.4 µs 3.2 Vp-p 58

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58
HCD-HPX7
• Waveforms
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted.
(p: pF)
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.
•
A
: B+ Line.
•
B
: B– Line.
•
Voltages and waveforms are dc with respect to ground un-
der no-signal conditions.
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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.
F
: TUNER (FM/AM)
E
: TAPE PLAY
a
: TAPE REC
J
: CD PLAY
L
: AUX IN
• Abbreviation
AUS
: Australian model
CND
: Canadian model
E3
: 240 V AC area in E model
KR
: Korean model
MX
: Mexican model
TW
: Taiwan model
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
f
: internal component.
•
: 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
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
•
Indication of transistor.
Note:
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
4.4 Vp-p
22.8
µ
s
4.5 Vp-p
472 ns
Approx.
700 mVp-p
4.5 Vp-p
59 ns
1
IC101
yd
(LRCK)
2
IC101
yh
(BCK)
– CD Board –
– MAIN Board –
12.4 Vp-p
21.2
µ
s
2.6 Vp-p
21.2
µ
s
3.2 Vp-p
30.4
µ
s
2 Vp-p
62.6 ns
6.3 Vp-p
2 s
1
Q303, 304 (Collector)
(REC Mode)
2
Q303, 304 (Base)
(REC Mode)
3
IC306
qa
(XCOUT)
4
IC306
qd
(XOUT)
5
IC306
of
(TC END SW)
(Tape Play Mode)
3
IC101
uj
(XTAO)
4
IC101
ra
(PFACO)