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LG GSA-4040B Service Manual page 63

Super multi dvd drive
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IC601 (BD7905BFS) : CD-ROM/DVD-ROM 6CH ACTUATOR DRIVER
Block Diagram
54
53
52
51
REVERSE
FG
DETECT
1
2
3
4
Pin Description
No Pin name Function
1
HU+
HU+ signal input
2
HU-
HU- signal input
3
HV+
HV+ signal input
4
HV-
HV- signal input
5
HW+
HW+ signal input
6
HW-
HW- signal input
7
HB
Bias for hall sensor
8
PGND1 Spindle power GND1
9
U
Spindle driver output U
10
SPV
1
Spindle power supply input
M
11
V
Spindle driver output V
12
GND
GND
13
GND
GND
14
GND
GND
15
GND
GND
16
GND
GND
17
PGND2 Spindle power GND2
18
W
Spindle driver output W
19
SPV
2
Spindle power supply input
M
20
SPRNF Spindle driver current power detection input
21
FG
FG signal output
22
CTL1
Driver logic control input1
23
CTL2
Driver logic control input2
24
SPIN
Spindle driver control input
25
SPIN
PWM GND
26
LDIN
Loading input
27
Vc
Reference voltage control input
50
49
48
47
46
45
44
LEVEL
LEVEL
LEVEL
SHIFT
SHIFT
SHIFT
117.5k
47k
-
117.5k
+
47k
-
+
HALL
BIAS
5
6
7
8
9
10
11
43
42
41
40
39
38
37
PRE
LOGIC
TSD
OSC
Current
OSC
LIMIT
Polarity
COMP
PRE LOGIC
12
13
14
15
16
17
18
No Pin name Function
28
SLIN1
29
SLIN2
30
SLV
DD
31 SLRNF1 Motor driver current power detection input1
32 SLRNF2 Motor driver current power detection input1
33
SPCNF Spindle driver filter port
34
SLO2-
35
SLO2+
36
SLO1-
37
SLO1+
38
AGND
39
GND
40
GND
41
GND
42
GND
43
GND
44
AV
M
45
FCO-
46
FCO+
47
TKO-
48
TKO+
49
LDO-
50
LDO+
51
Vcc
52
TKIN
53
FCIN
54
DVcc
36
35
34
33
32
31
PRE
LOGIC
FF
LIMIT
FF
LIMIT
188k
75k
-
112.5k
FG
STBY/
BRAKE
CONTROL
19
20
21
22
23
24
Motor driver input1
Motor driver input2
Motor power supply
Motor driver inverted output2
Motor driver non-inverted output1
Motor driver inverted output1
Motor driver non-inverted output1
BLT Motor driver power -GND
GND
GND
GND
GND
GND
Actuator driver power supply
Focus driver inverted output
Focus driver non-inverted output
Tracking driver inverted output
Tracking driver non-inverted output
Loading driver inverted output
Loading driver non-inverted output
BTL free Loading driver power supply
Tracking driver input
Focus driver input
PWM power supply control
30
29
28
47k
-
67k
47k
-
67k
-
47k
25
26
27
65

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