KS-FX321
(No.49771)1-17
4.3 AN80T05LF (IC781) : Regulator
• Pin layout & Block diagram
• Pin function
4.4 UPC1228HA (IC901) : Head amp
Pin No.
Symbol
Function
1
ILL
10V power supply for illumination.
2
MODE2
When 5V is input,becomes AM. and the antenna output is turned on.
3
MODE1
When 5V is input,becomes AM. and the output of FM is switched.
4
STB
When 5V is input outputs to ILL,COMand AMP. It is 0V usually.
5
VDD
5.6V power supply.
6
AMP
Power supply supply to remote amplifier
7
VCC
Back up. connects with ACC with it.
8
ANT
Power supply supply to auto antenna.
8.7V power supply.
The power supply of 8.7V to AM.
The power supply of 8.7V to FM.
Ground
Pre
Drive
Thermal
Protection
Reference Voltage
Pre
Drive
AMP
Out
ASO & Peak
Current Protection
AMP
Out
Pre
Drive
Pre
Drive
Pre
Drive
1
2
3
4
5
6
7
8
9
10
11
12
ILL
10V
MODE2 MODE1
STB
VDD
5.6V
AMP
VCC
ANT
COM
8.7V
AM
8.7V
FM
8.7V
GND
ANP1
ANP2
UPC1228HA
1
2
3
4
5
6
7
8
IN1
NFB1
OUT1
VCC
GND
OUT2
NFB2
IN2
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