Note For Printed Wiring Boards And Schematic Diagrams - Sony HCD-PX5 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-5.

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

(In addition to this, the necessary note is printed in each block)
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• 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
(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.
B E
Q
B C E
These are omitted.
Printed wiring board of BD (CD) board is shown only for
referring, because CD base unit is replaced as a block.
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
.
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Note on Schematic Diagram:
• 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.
• % : indicates tolerance.
• 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.
• U : B+ Line.
• V : B– Line.
• 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.
F : TUNER
J : CD PLAY
E : MD PLAY
j : MD REC
q : DIGITAL OPTICAL IN
d : TAPE IN (PLAY)
G : TAPE OUT (REC)
N
: ANALOG IN
• Abbreviation
HK : Hong Kong model
JE : Tourist model
KR : Korean model
Schematic diagram of BD (CD) board is shown only for
referring, because CD base unit is replaced as a block.
x a o u 1 6 3
y
i
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8 9
• Circuit Boards Location
PANEL board
Q Q
3 7 6 3 1 5 1
JACK board
MD DIGITAL board
BD (MD) board
c o
DISC SENSOR board
.
53 53
2 4 2
9 8
REG board
AMP board
SELECTOR board
(Tourist model)
MAIN board
5 0 8 9 2 4 9 8
JOG board
POWER board
IN OUT SW board
m
BD (CD) board
RELAY board
9 9
2 9 9
TRAY SENSOR board
DRIVER board
MOTOR board