Block Diagram; Ic301 (Bd7956Fs) : Cd-Rom/Dvd-Rom 7Ch Power Driver - LG RH1777 Service Manual

IC301 (BD7956FS) : CD-ROM/DVD-ROM 7CH POWER DRIVER

• BLOCK DIAGRAM

LDO-
LDO+
Vcc
ACTIN1
ACTIN2
TJMON
BTHC
SPVM_S
PGND1
10
PGND2
U 11
SPV 1 12
M
V 13
14
fin
15
PGND3
16
W
17
SPV 2
M
SPRNF 18
19
HB
20
HU+
21
HU-
HV+ 22
HV- 23
24
HW+
25
HW-
SPIN 26
27
DGND
1
2
3
4
5
6
7
8
9
50k
100k
50k
100k
50k
100k
33.6k
33.6k
47k
4-41
54
ACO1+
53
ACO1-
52
ACO2+
51
ACO2-
50
ACO3+
49
ACO3-
48
AV
M
47
ACTIN3
46
LDIN
45
AGND
44
SPCNF
43
FG
42
V
C
41
fin
40
SLO1+
39
SLO1-
38
SLO2+
37
SLO2-
36
SLGND
35
CTL2
34
CTL1
33
SLRNF2
32
SLRNF1
31
SLV
DD
30
SLIN2
29
SLIN1
28
DVcc