Diagrams; Circuit Board Location - Sony HCD-DP900D Service Manual

SECTION 6

DIAGRAMS

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each 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 and 1 / W or less unless otherwise
4
specified.
• f : internal component.
• 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.
• 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 ).
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
: 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
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
C
These are omitted. Q
B E
Q
B C E
These are omitted.

6-1. CIRCUIT BOARD LOCATION

MOTOR board
DIODE board
SENSOR board
HEAD (A) board
HEAD (B) board
SUB TRANS board
TRANS board
CD-PANEL board
OPT IN board
PANEL board
21 21
DRIVER board
RF-240 board
LEAF SW board
VIDEO board
MB board
DSP board
MAIN board
SURROUND AMP board
FRONT AMP board
HCD-DP900D
Ver 1.1 2002.03