STR-DH550/DH750
STR-DH550/DH750
34
34
5-19. PRINTED WIRING BOARD – STANDBY DCDC Board (Component Side) –
• See page 14 for Circuit Boards Location. •
: Uses unleaded solder.
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
C1902
C1903
C1904
C1905
C1907
C1909
C1910
C1912
C1913
C1914
C1922
C1923
C1924
C1925
C1927
C1929
R1901
R1903
R1906
R1907
C1930
R1908
R1909
C1932
C1933
C1934
IC1905
IC1906
IC1907
R1911
R1913
R1916
R1917
R1918
R1919
R1931
C1942
C1943
C1944
C1945
C1947
C1949
R1921
R1923
R1926
R1927
R1928
R1929
C1952
C1953
C1954
F901
F902
F940
F941
L910
Q951
E
LP1901
FH901
FH902
FH903
FH904
L1901
L1902
L1903
L1904
L1905
L1906
1
4
CN941
S901
R971
R972
R973
R974
R978
R979
R981
C960
C961
C969
C970
C971
D906
KA
C975
C978
C977
C976
C979
C980
C981
C982
IC902
D923
RY951
13
CNP901
1
4
CNP902
1
5
CNP903
C1950
CN1901
1
9
10
12
ET1900
T902
R1905
R1915
D901
D902
D904
K
A
A
K
A
K
K
A
D903
LP1902
C1976
R1925
IC901
C963
R1930
R1932
STANDBY DCDC BOARD
(COMPONENT SIDE)
1-889-544-
21
(21)
VOLTAGE SELECTOR
220V
127V
OFF
HDMI BOARD
CN3513
(Page 31)
>009P
MAIN BOARD
CN2005
(Page 22)
>007P
MAIN BOARD
CN950
(Page 22)
>002P
MAIN BOARD
CN951
(Page 22)
>001P
(CHASSIS)
T901
POWER
TRANSFORMER
(MAIN)
~ AC IN
POWER TRANSFORMER
(SUB)
Ú
DH550
¾
DH750
BR
¾
¾
Ú
Note:
IC902 (DH750) on the STANDBY DCDC board cannot ex-
change with single. When this part on the STANDBY DCDC
board is damaged, exchange the entire mounted board.
Ver. 1.2