Read Sony STR-DK5 Service Manual online
STR-DK5
16
16
STR-DK5
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
no mark : FM
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER (FM/AM)
L
: VIDEO (AUDIO)
J
: CD (ANALOG)
c
: CD (DIGITAL)
• Abbreviation
RU: Russia model
for printed wiring boards:
• X
: parts extracted from the component side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
• Waveforms
— DIGITAL Board —
C
B
These are omitted.
E
Q
B
These are omitted.
C
Q
Q
E
B
C
E
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
4-6. CIRCUIT BOARDS LOCATION
MIC TONE board
STANDBY board
KARAOKE board
DIGITAL board
MAIN board
MIC AMP board
DISPLAY board
VOLUME board
1
IC1301
qd
(CKOUT)
2.2 Vp-p
2.4 Vp-p
1V/DIV, 50nsec/DIV
3
IC1301
wa
(XOUT)
1V/DIV, 50nsec/DIV
4
IC1501
9
(MCLK1)
0.8 Vp-p
1V/DIV, 50nsec/DIV
2
IC1301
qf
(BCK)
3.3 Vp-p
1V/DIV, 0.2
µ
s/DIV
13.9 MHz
12.288 MHz
3.07 MHz
12.288 MHz
5
IC1501
qs
(MCLK2)
1.1 Vp-p
1.2 Vp-p
1V/DIV, 50nsec/DIV
7
IC1101
id
(X1)
1V/DIV, 50nsec/DIV
6
IC1501
qf
(SCKOUT)
2.9 Vp-p
1V/DIV, 50nsec/DIV
24 MHz
12.288 MHz
13.9 MHz
Ver. 1.1
• Abbreviation
RU: Russia model
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