JVC KS-FX230 Service Manual page 18

KS-FX230
BA3918-V1 (IC781) : Regulator
1.Block diagram
TUNER FM/AM POWER 5V
NC
2.Pin functions
Pin
Symbol
I/O
No.
1
NC -
2
TUNER
O
3
FM/AM O
4
POWER
O
5
5V -
6
REMOTE
-
7
VP
O
8
NC -
9
9V
-
10
NC
-
11
TUNER-9V -
12
GND -
1-18
REGULATOR
-
+
-
+
REMOTE VP
NC
Not used
Output selector of AM and ANT.
Output selector for AM or FM or both outputs is off.
Output selector of COM and AMP. Only VDD output is on at STAND BY.
Output level is 5.6v. Output current is 100mA(min). It is voltage supply
for micro computer. Whenever Vcc terminal is connected, output always
keep running
Voltage which is about 1V lower than Vcc unit voltage. Output current is
500mA(min). Voltage supply for Remote Amp.
To be continued to BACK UP and ACC of car.
Not used
Output level is 8.7V. Output current is 150mA(min). It can be used for
system common power supply ; tone control, volume control, balance control,
equalize amplifier.
Not used
Output level is 8.7V. Output current is 250mA(min). Voltage supply for
FM Radio Tuner.
To GND
-
+
-
+
NC TUNER-9V GND
9V
Functions