Note For Printed Wiring Boards And Schematic Diagrams - Sony HCD-MD595 Service Manual

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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 Boards:
• 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.
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:
Note:
The components identi-
Les composants identifiés par
fied by mark 0 or dotted
une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
Ne les remplacer que par une
cal for safety.
pièce por tant le numéro
Replace only with part
spécifié.
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
AUS : Australian model
CND : Canadian model
HK
: Hong Kong model
JE
: Tourist model
KR
: Korean model
MY
: Malaysia model
SP
: Singapore model
Schematic diagram of BD (CD) board is shown only for
referring, because CD base unit is replaced as a block.
• Circuit Boards Location
MD DIGITAL board
PANEL board
BD (MD) board
LOADING board
55
55
AMP board
POWER board
SP board
TUNER PACK
RDS IC board
(AEP, UK models)
MAIN board
BD (CD) board

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