Dout - Samsung SC-140 Service Manual

SCR-140(A4)-en 99.3.15 11:34 AM ˘ ` 25
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M56788FP(I.C-DRIVE)
- PIN DESCRIPTION
Terminal Symbol
CH3IN
1
OUT3
2
3
VBS2
4
5
6
7 11
,
8
VM3(-)
9
VM3(+)
10
VM4(+)
12
VM4(-)
13
VM5(+)
14
VM5(-)
15
OUT5
16
17
18
19
IN4-
20
OUT4
21
Terminal function
CH3 non-inverted input
E3 amplifier output
IN3- E3 amplifier inverted input
Bootstrap power supply
Vm2 Motor power supply
N.C N.C
GND Motor GND
IN3+ 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
IN5- E5 amplifier inverted input
IN5+ E5 amplifier non-inverted input
IN4+ E4 amplifier non-inverted input
E4 amplifier inverted input
E4 amplifier output
CH3IN 1 42 REG+
OUT3 2 41 REGB
IN3- 3 40 IN1+
VBS2 4 39 VBS1
Vm2 5 38 Vm1
N.C 6 37 IN1-
7 36 OUT1
GND
8 35 VM1-
IN3+
VM3+ 9 34 VM1+
VM3-
10 33 GND
GND
11 32 VM2+
VM4+
12 31 VM2-
VM4-
13 30 OUT2
VM5+
14 29 GND
VM5-
15 28 IN2-
OUT5
16 27 IN2+
IN5-
17 26 MUTE1
IN5+
18 25 MUTE2
IN4+
19 24 SS.GND
IN4-
20 23 VREF
OUT4-
21 22 VREFO
Terminal
22
23
24
25
26
27
28
29 33
,
30
31
32
34
35
36
37
38
39
40
41
42
36
25
Symbol Terminal function
VREF0 Reference voltage output
VREF Reference voltage input
SS.GND Small signal GND
MUTE2 CH5 mute
MUTE1 CH1-4mute
IN2+ E2 amplifier non-inverted input
IN2- E2 amplifier inverted input
GND Motor GND
OUT2 E2 amplifier output
VM2(-) CH2 inverted output
VM2(+) CH2 non-inverted output
VM1(+) CH1non-inverted output
VM1(-) CH1 inverted output
OUT1 E1 amplifier ouptut
IN1- E1 amplifier inverted input
Vm1 Motor power supply
VBS1 Bootstrap power supply
IN1+ E1 amplifier non-inverted input
REGB Regulator PNP base connect
REG+ Regulator voltage setting resistor