Read Sony SRS-DB500 (serv.man2) Service Manual online
SRS-DB500
SRS-DB500
3
3
2. DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• 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
specifi ed.
• f : internal component.
• 2 : nonfl ammable resistor.
• 5 : fusible resistor.
• C : panel designation.
• 2 : nonfl ammable resistor.
• 5 : fusible resistor.
• C : panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
AUDIO
• Abbreviation
CH
CH
: Chinese model
TW :
Taiwan
model
For Printed Wiring Boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• f : internal component.
•
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• f : internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
CH
CH
: Chinese model
TW :
Taiwan
model
2-1. SCHEMATIC DIAGRAM - AUDIO/PANEL Section -
(3/3)
F
AMP
CN102
BOARD
AMP
BOARD
(2/3)
CN592
C
CN103
E
(3/3)
AMP
BOARD
CL755
CL756
CL757
4P
CN101
FB755
FB753
FB754
1000p
C763
1000p
C761
1000p
C762
470p
C765
MC2837
D102
(CHASSIS)
INPUT BOARD
EMI
FL701
1
2
3
4
R
GND
GND
L
470p
C764
INPUT 1
R
L
J101
CL753
CL752
0.01
C752
0.01
C753
CL754
CL751
CL750
0.01
C750
0.01
C751
1
2
3
4
4P
CN602
L+
L-
R+
R-
C754
0.1
C755
0.1
C756
0.1
C757
0.1
(CHASSIS)
-
+
+
-
R
L
SPEAKER
TERMINAL BOARD
0.01
C034
0.01
C035
0.01
C036
J601
470p
C032
470p
C033
470p
C031
FB608
0
FB602
0
FB603
FB607
470
R077
470
R076
1k
FB601
1
3
4
5
6
7
8
9
10
10P
CN021
HP_OUT_L
HP_DETECT
HP_OUT_R
HP_OUT_GND
INPUT2_R
INPUT2_GND
INPUT2_L
GND
GND
MC2837
D031
MC2837
D032
JACK BOARD
J102
INPUT 2
4
B
D
3
5
C
F
1
E
G
A
2
FB750
FB751
FB752
(EXCEPT TW, CH)
(EXCEPT TW, CH)
(TW, CH)
0
R751
0
R752
(TW, CH)
(EXCEPT TW, CH)
(Page 6)
(Page 5)
(Page 6)
Note:
The components identi-
fi
The components identi-
fi
ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
Ver. 1.3
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