Sony STR-VX500, Руководство по обслуживанию

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STR-VX500
12 12
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
HK : Hong Kong model
SP : Singapore model
MY : Malaysia model
IA : Indonesia model
EA : Saudi Arabia model
• Waveforms
1
2
IC501
qd
XT2
IC501
0
X2
DISPLAY Section
5MHz
5.5Vp-p
32.768kHz
5Vp-p
• Indication of transistor
C
These are omitted
E B
Q
C
These are omitted
E B
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.