Diagrams - Sony HCD-WZ8D Service Manual

Circuit Boards Location
MAIN board
BACK LIGHT board
ENTER-SW board
RF board
MS-128 board
LCD board
MIC board
SECTION 4

DIAGRAMS

REGULATOR board
CD-TC SW board
PANEL board
4CH-VOL board
VIDEO board
DMB03 board
HP AMP board
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 Ω and
1 / W or less unless otherwise
4
specified.
• ¢ : 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
• H : adjustment for repair
• Power voltage is fed with DXA-WZ8D from external con-
nector (SYSTEM CONTROL 1, 2).
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• 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
: AUDIO
L : VIDEO
E
: PB (TAPE)
a : REC (TAPE)
J : CD
c : DVD
d
: TUNER
h : MD
N : Y
O : CHROMA
P
: COMPONENT VIDEO
• Abbreviation
AUS : Australian model
E2 : 120V AC area in E model
E3 : 240V AC area in E model
E15 : 220-240V AC area in E model
EA : Saudi Arabia model
KR : Korean model
MY : Malaysia model
PH : Philippines model
RU : Russian model
SP : Singapore model
TH : Thai model
23 23
HCD-WZ8D
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
Caution:
Pattern face side: Parts on the pattern face side seen from
(SIDE B) the pattern face are indicated
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated
• Indication of transistor
C
These are omitted.
Q
B E
Q
B C E
These are omitted.
Q
B C E
These are omitted.