Samsung SC-148B Service Manual page 15

M56788FP(I.C-DRIVE)
- PIN DESCRIPTION
Terminal Symbol
1 CH3IN
2 OUT3
3 IN3-
4 VBS2
5 Vm2
N.C
6
GND
7 11
,
8 IN3+
9
VM3(-)
10
VM3(+)
12
VM4(+)
13
VM4(-)
14 VM5(+)
15
VM5(-)
16
OUT5
17
IN5-
18
IN5+
19
IN4+
20 IN4-
21
OUT4
Terminal function
CH3 non-inverted input
E3 amplifier output
E3 amplifier inverted input
Bootstrap power supply
Motor power supply
N.C
Motor GND
E3 amplifier non-inverted input
CH3 inverted output
CH3 non-inverted output
CH4 non-inverted output
CH4 inverted output
CH5 non-inverted output
CH5 inverted output
E5 amplifier output
E5 amplifier inverted input
E5 amplifier non-inverted input
E4 amplifier non-inverted input
E4 amplifier inverted input
E4 amplifier output
Terminal Symbol
22
VREF0
23
VREF
24
SS.GND
25
MUTE2
26
MUTE1
27
IN2+
28
IN2-
29 33
,
GND
30 OUT2
VM2(-)
31
32
VM2(+)
34
VM1(+)
35 VM1(-)
36
OUT1
37
IN1-
38
Vm1
39
VBS1
40
IN1+
41 REGB
42
REG+
39
Terminal function
Reference voltage output
Reference voltage input
Small signal GND
CH5 mute
CH1-4mute
E2 amplifier non-inverted input
E2 amplifier inverted input
Motor GND
E2 amplifier output
CH2 inverted output
CH2 non-inverted output
CH1non-inverted output
CH1 inverted output
E1 amplifier ouptut
E1 amplifier inverted input
Motor power supply
Bootstrap power supply
E1 amplifier non-inverted input
Regulator PNP base connect
Regulator voltage setting resistor