Schematic Diagrams
7-2
Samsung Electronics
USA
KOR
O
X
BD156
BD184
X
O
DCDC Converter for Power of ATI-CPU
USA : STD power
KOR : B+ power
DCDC Converter for Power of ATI-CPU
USA/KOR Common B+ power
DCDC Converter for Power of Channel Board
Only for USA
GND
5
FB
COMP
6
7
EN
8
SS
MP1583DN
BS
1
IN
2
SW
3
4
IC142
1/10W
R1122
3Kohm
2
IN
3
SW
GND
4
FB
5
6
COMP
EN
7
SS
8
MP1583DN
IC140
1
BS
EN
8
SS
47Kohm
R803
1/10W
MP1583DN
BS
1
IN
2
SW
3
4
GND
5
FB
COMP
6
7
IC139
1.5K
R807
1/16W
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7-1-2 DCDC
Summary of Contents for HLR4677WX/XAA
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