Read Sony HCD-DP900D / MHC-DP900D Service Manual online
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21
HCD-DP900D
SECTION 6
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
5
: fusible resistor.
•
C
: panel designation.
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
•
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 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
c
: digital out
g
: MD (VIDEO)
• Abbreviation
MY
: Malaysia model
SP
: Singapore model
TH
: Thai model
MX
: Mexican model
EA
: Saudi Arabia
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
B
These are omitted.
C
E
Q
C
B
These are omitted.
E
Q
Note:
The components identified by mark
The components identified by mark
0
or
dotted line with mark
0
are critical for
safety.
Replace only with part number specified.
Replace only with part number specified.
6-1. CIRCUIT BOARD LOCATION
DRIVER board
LEAF SW board
CD-PANEL board
TRANS board
SUB TRANS board
DSP board
MB board
VIDEO board
MAIN board
SURROUND AMP board
FRONT AMP board
OPT IN board
PANEL board
HEAD (B) board
HEAD (A) board
RF-240 board
MOTOR board
SENSOR board
DIODE board
Ver 1.1 2002.03
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