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STR-DN1050
STR-DN1050
60
60
6-33. SCHEMATIC DIAGRAM – STANDBY Board –
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
STANDBY BOARD
0
0.7
0
0.6
8.7
4.2
8.5
0
2
9
3.5
C977
0.1u
C971
0.1u
C982
22u
C981
22u
C979
0.1u
C960
0.1u
C961
0.1u
C975
10u
C962
0.1u
C980
0.0033u
C978
0.0033u
C976
10u
C963
3300u
16V
C969
1u 50V
CL996
CNP901
3P
1 LIVE
3 NEUTRAL
CNP902
4P
1 LIVE
4 NEUTRAL
CN940
7P
1
AC CUT
3
PWR RELAY
4
STBY 4.13V
5
STBYGND
6
STBYGND
D905
BAV70
D901
D901 ~ D904
1SR154-400TE-25
D902
D991
DA2J10100L
D903
D904
F901
T3.15AL 250V
(EXCEPT US, CND)
8A 125V
(US, CND)
FH901
FH902
JS901
0
L911
0uH
L910
10uH
Q951
RELAY
DRIVER
2PD601ART
Q952
AC OFF DETECT
2PD601ART
R971
15
R972
12
10k
R963
10k
R961
2.2k
R974
47k
R973
10k
R1930
75k
R979
18k
R981
15k
R978
4.7k
R960
RY951
IC902
RT7237ALGSP
1
BOOT
2
VIN
3
SW
4
GND
FB
5
COMP
6
EN
7
SS
8
T902
POWER
TRANSFORMER
(SUB)
+3.3V REG. (STBY)
IC902
POWER
TRANSFORMER
(MAIN)
T901
~ AC IN
>052S
MAIN BOARD (2/4)
CNP920
(Page 52)
>051S
MAIN BOARD (2/4)
CNP930
(Page 52)
>062S
DCDC BOARD
CN941
(Page 58)
>022S
DIGITAL BOARD
(3/12)
CN1501
(Page 39)
>063S
DCDC BOARD
CN902
(Page 58)
Note:
IC902 on the STANDBY board cannot exchange with
single. When this part on the STANDBY board is damaged,
exchange the entire mounted board.