BBK DV523S, Руководство по обслуживанию

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-9V GND +3.3V +5V GND +9V SA+5V GND MIC-DET OKA AGND
AGND AGND OKA +3.3V -21V
2 3 4 1 5 6 8 9
10
7
11 12 13
CN501 13P2.0mm
FL+ FL- -9V +9V MIC-DET GND +5V GND
U503
LM431A
C515 104
L505
10uH/1A
C506 473
L507
10uH/2A
1
2
BC501
~275V 104
1
2
3
4
L501
F501
T1.6AL250V
R
K A
!
!
!
R509 10K/1% R508 3.3K/1%
R506 330
R505
33R
R503 39K/2W
!
!
!
U502 PH817
TC502 47uF/50V
TC501
47uF/400V
D505 HER107
C502 103/1KV
C503 101/1KV
L503 FB
FL+ FL-
-21V
BC503
~275V 221
+9V
C504 104
TC504 470uF/16V
TC511 100uF/16V TC512 47uF/50V
TC506
1000uF/10V
TC505 1000uF/10V
D508
HER105
TC503
470uF/16V
R511 1.5K
R507
1K(NC)
1
2
R501
680K 1/2W
!
! !
D510
HER303
ZD501 5.1V/0.5W
D506
HER105
D511
HER105 D512
HER105
+3.3V
TC507
47uF/16V
D503 1N4007
D502
1N4007
D504 1N4007
D501
1N4007
C508 104
C511 104
-9V
+5V
ZD502
10V/0.5W
VDD
4
D
5
S
2
FB
3
D
6
D
7
D
8
S
1
U501
VIPER22
R512
9.1K
1
2
BCN501 ~220V
L509
10uH/1A(option)
TC508
470uF/10V(nc)
SA+5V
To Mpeg Board To Microphone Board
2 3 4 6 7
10 11
9
12 13
14
15
16
T501
BCK-28-519S
L508
10uH/2A
TC510
1000uF/10V
TC514 1000uF/10V
D513 SR303
C510 104
1
2
BC504
~275V 221
1
2
BC505
~275V 221
D507
HER105
TC515 1000uF/10V
2 1
CN503 2P2.0mm
LED+5V
LED+5V
GND
R514 220
JP504 0R(NC)
!
R513 1K
2.5V
JP502 0R
JP506 0R(NC)
R502 0R
JP505 0R(NC)
JP501
0R
2 3 4 1 5 6 8 9
10
7
11
CN502 11P2.0mm
JP507 0R(NC)
R515 220R/1/4W
C516 104
C517
104
Q501 8550D
BCN502
SW-SPST
JP508 0R(NC)
C512
104
JP519 0R(NC)
26
POWER BOARD SCHEMATIC DIAGRAM