LG MBD-D102X, Service Manual, Page: 48 / 79

3-37
5. IP9009
5-1. PIN CONFIGURATION
28 27 26 25 24 23 22 21 20 19 18 17 16 15
1 2 3 4 5 6 7 8 9 10 11 12 13 14
BIAS REBadj REOadj Reset Vdet IN4 IN3 PGND MUTE PVCC2 GND VO4- VO4+ VO3- VO3+
FWD REV CTL PS IN1 IN2 SVCC PGND PVCC1 VOL- VOL+ VO2- VO2+ VO1- VO1+
I P 9 0 0 9
5-2. BLOCK DIAGRAM
28 27 26 25 24 23 22 21 20 19 18 17 16 15
BIAS REBadj REOadj Reset Vdet IN4 IN3 PGND MUTE PVCC2 GND VO4- VO4+ VO3- VO3+
1 2 3 4 5 6 7 8 9 10 11 12 13 14
FWD REV CTL PS IN1 IN2 SVCC PGND PVCC1 VOL- VOL+ VO2- VO2+ VO1- VO1+
Reset
MUTE
TSD
LEVEL SHIFT
- +
LEVEL SHIFT
- +
LEVEL SHIFT
- +
LEVEL SHIFT
- +
LEVEL SHIFT
- +
P/S
MSC
SWITCH
D
D D D D D D
D D D
45K 45K
45K 45K
10K 10K
10K 10K
5-3. PIN DESCRIPTION
No SYMBOL I/O SYMBOL
1 FWD I Loading motor forward input
2 REV I Loading motor reverse input
3 CTL I Loading motor speed control
4 PS I Power save
5 IN1 I CH1 input
6 IN2 I CH2 input
7 SVCC - Signal power supply
8 PVCC1 - Power supply 1
9 VOL- O Loading driver output(-)
10 VOL+ O Loading driver )
11 VO2- O CH2 driver output(-)
12 VO2+ O CH2 driver )
13 VO1- O CH1 driver output(-)
14 VO1+ O CH1 driver )
No SYMBOL I/O SYMBOL
15 VO4+ O CH4 driver )
16 VO4- O CH4 driver output(-)
17 VO3+ O CH3 driver )
18 VO3- O CH3 driver output(-)
19 GND - Ground
20 PVCC2 - Power supply 2
21 MUTE I Mute
22 IN3 I
CH3 input
23 IN4 I CH4 input
24 Vdet I Reset controller input
25 Reset O Reset controller output
26 REOadj O Adjustable regulator feedback
27 REBadj O Adjustable regulator control
28 BIAS I Bias