Sanyo FISHER DC-TS960WL Service Manual page 36

IC BLOCK DIAGRAM & DESCRIPTION
IC160 IKE80-E(Power Amp.)
FWD
REV
VCCP2
VLO-
VLO+
VO4+
VO4-
VO3+
VO3-
FR
VO2+ 10
VO2- 11
VO1- 12
13
VO1+
VCCP1 14
VCCS 15
VIN1+ 16
VIN1- 17
VIN1 18
No. Name
LOADING Output switching (FWD)
1 FWD
LOADING Logic input
LOADING Output switching (REV)
2 REV
LOADING Logic input
3 VCC2 CH34 LOADING Power supply
4 VLO- LOADING Output (-)
5 VLO+ LOADING Output (+)
6 VO4+ CH4 Output (+)
7 VO4- CH4 Output (-)
8 VO3+ CH3 Output (+)
9 VO3- CH3 Output (-)
10 VO2+ CH2 Output (+)
11 VO2- CH2 Output (-)
12 VO1- CH1 Output (-)
13 VO1+ CH1 Output (+)
14 VCCP1 CH1 2 Power supply
15 VCCS Signal stem power supply
16 VIN1+ CH1 Input Input OP-AMP (+) Input
17 VIN1- CH1 Input Input OP-AMP (-) Input
18 VIN1 CH1 Input Input OP-AMP Output
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1
Thermal shutdown
Input
2
3
4
Output
control
5
6
Level
shift
7
8
Level
shift
9
Power
stem
GND
Level
shift
Level
shift
Signal stem
power supply
44k
11k
Function
Signal stem GND
(Load outout voltage set)
MUTE
Match CH:ON/OFF
H:Output ON, L:Output OFF
CH2,3,4
44k
11k
To VREFOUT
(VCC)
REG IN
REG OUT
44k
11k
To VREFOUT
44k
11k
No. Name
19 VIN2+ CH2 Input Input OP-AMP (+) Input
20 VIN2- CH2 Input Input OP-AMP (-) Input
21 VIN2 CH2 Input Input OP-AMP Output
22 VIN3- CH3 Input Input OP-AMP (-) Input
23 VIN3 CH3 Input Input OP-AMP Output
24 VO-OP OP-AMP Output
25 VIN-OP OP-AMP (-) Input
26 VIN+OP OP-AMP (+) Input
Regulator, Error AMP Output
27 REG_IN
Fxternal PNP transistor base
28 REG_OUT Regulator,Error AMP Input (+)
29 VREF_OUT VREF_AMP (Voltage follow-up) Output
30 VREF_IN VREF Input External PNP transistor base
31 VIN4 CH4 Input Input OP-AMP Output
32 VIN4- CH4 Input Input OP-AMP (-) Input
33 MUTE234 CH2 3 4 Output ON/OFF
34 MUTE1 CH1 Output ON/OFF
35 VCONT LOADING Output (H Voltage) set
36 S_GND Signal stem GND
- 35 -
36
SGND
35
VCONT
34
MUTE1
CH1
33 MUTE234
32 VIN4-
31 VIN4
30 VREF_IN
29 VREF_OUT
28 REG_OUT
Power
stem
GND
FR
27 REG_IN
26 VIN+OP
25 VIN-OP
24
VO_OP
23 VIN3
22 VIN3-
21 VIN2
20 VIN2-
19 VIN2+
Function