Read Sony SRS-BTV25 Service Manual online
SRS-BTV25
SRS-BTV25
25
25
4-8. SCHEMATIC DIAGRAM - MAIN Section (4/4) -
• See page 26 for IC Block Diagrams.
Note 1: Q901 on the MAIN board cannot exchange with single. When
this part is damaged, exchange the complete mounted board.
Note 2: When the JACK board is defective, exchange the BATTERY HOLDER
(SV) ASSY (for Black) or BOTTOM FRAME (SV) ASSY (for White).
Note 3: When the USB board is defective, exchange the BATTERY HOLDER
(SV) ASSY (for Black) or BOTTOM FRAME (SV) ASSY (for White).
BOARD
(3/4)
6
MAIN
MAIN
3
(1/4)
BOARD
IC B/D
IC B/D
4
BOARD
MAIN
(1/4)
0
3
3.7
0
5
0.5
0.6
11.2
13.2
2.3
1.7
0
0
3.3
5
0.3
3.3
5
3.3
13.2
13.2
13.2
13.2
13.2
0
3.3
DZ2J140M0L
D904
CTL_PWR1
V13
DGND
10uH
L901
V13E
V51
JL903
JL904
1
2
3
4
4P
CN901
VBUS
VBUS
GND
GND
JL901
JL902
TPS2553DBVR
IC901
1
IN
2
GND
3
EN
4
FAULT
5
ILIM
6
OUT
DRC5115E0L
Q902
DRC5115E0L
Q903
DA2J10100L
D903
FB903
FB904
FB901
FB902
TPS54331GDR
IC903
1
BOOT
2
VIN
3
EN
4
SS
5
VSENSE
6
COMP
7
GND
8
PH
SJPJ-L3VL
D902
CL901
DRC5115E0L
Q906
DZ2J056M0L
D905
DGND
VBUS_PROTECT_DET
0.1
C919
DRC5115E0L
Q907
6
5
4
3
2
1
D
D
G
S
D
D
TPC6110(T5RSONY,
Q901
1
2
2P
CN902
13V
GND
MC2838-T112-1
D907
GN1G
D909
GN1G
D910
FB905
FB906
FB907
DA2J10100L
D908
C922
0.1
0.1
C901
16V
220
C902
22k
R905
100k
R928
22
C905
22
C904
22
C906
22
C903
10k
R910
2.2k
R914
12k
R912
1M
R911
33k
R913
47p
C908
1000p
C907
0.1
C909
0.01
C911
0.1
C912
1
C920
0.1
C921
25V
470
C915
220k
R915
47k
R916
10k
R917
22
C913
0.1
C916
100k
R920
C923
0.1
IC903
DC/DC CONVERTER
IC901
VBUS SWITCH
(4/4)
MAIN BOARD
USB
BOARD
JACK
BOARD
(2/2)
POWER CONTROL
OVER LOAD DETECT
B+ SWITCH
OVER LOAD DETECT
OVER LOAD DETECT
8
2
A
D
5
B
7
C
6
11
3
F
9
E
10
1
4
(Page 24)
(Page 22)
(Page 22)
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