STR-WX7
9
9
SECTION 4
DIAGRAMS
4-1. CIRCUIT BOARDS LOCATION
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
p
: parts mounted on the conductor side.
•
®
: Through hole.
•
¢
: internal component.
•
b
: Pattern from the side which enables seeing.
•
U
: B+ Line.
•
V
: 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.
• 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
L
: AUDIO (AV INPUT)
g
: MD/VIDEO
i
: VIDEO (AV INPUT)
E
: PB (DECK A)
G
: REC (DECK B)
J
: CD
• Abbreviation
EA
: Saudi Arabia model.
SP
: Singapore model.
MY
: Malaysia model.
AUS
: Australian model.
TH
: Thai model.
DISPLAY Section
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
• Indication of transistor
C
These are omitted
E
B
Q
C
These are omitted
E
B
• Waveform
5MHz
5.3Vp-p
IC501
0
X2
IC501
!£
XT2
1
2
32.768kHz
5Vp-p
MIC / ECHO board
POWER AMP board
SURR AMP board
SURR SPK board
PRIMARY board
ENCAPSULATED COMPONENT
SECONDARY board
HEADPHONE board
CONNECTOR board
LOADING PANEL board
PANEL board
MAIN board
MOTOR board
DETECTOR board
•
Abbreviation
EA
: Saudi Arabia
SP
: Singapore
MY
: Malaysia
AUS : Australian
TH
: Thai
w w w . x i a o y u 1 6 3 . c o m
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
