Read Sony STR-SL50 Service Manual online
5
5
STR-SL50
SECTION 3
DIAGRAMS
• Circuit Boards Location
DIGITAL board
MAIN board
DISPLAY board
POWER SW board
STANDBY board
For schematic diagrams.
Note:
Note:
• All capacitors are in µF unless otherwise noted. p : pF. 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
• 5 : fusible resistor.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
No mark : FM
No mark : FM
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Circled numbers refer to waveforms.
• Signal path.
F
: ANALOG
J
: DIGITAL
c
: DVD
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each block.)
(In addition to this necessary note is printed in each block.)
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
For printed wiring boards.
Note:
Note:
• X
: parts extracted from the component side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side A)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side B)
the parts face are indicated.
• Waveforms
– DIGITAL Board –
– DIGITAL Board –
1
IC1201 qs
(MCLK2)
2
IC1101 wa
(XOUT)
3
IC1601 id
(X1)
1V/DIV, 40ns/DIV
1V/DIV, 40ns/DIV
1V/DIV, 40ns/DIV
4.1 Vp-p
74 ns
3.4 Vp-p
62.4 ns
81.3 ns
4.3 Vp-p
Note:
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
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