52
CX-JN331/JPK331
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IC Pin Function Description
MAIN BOARD IC371 BU2099FV (LOADING/TABLE MOTOR DRIVER)
Pin No.
Pin Name
I/O
Description
1
VSS
-
Ground terminal
2
N.C.
-
Not used
3
DATA
I
Serial data input from the motor/plunger driver
4
CLOCK
I
Serial data transfer clock signal input from the system controller
5
LCH
I
Latch pulse signal input from the system controller
6
Q0
O
Recording/playback selection signal output terminal
7
BIAS
O
Recording bias control signal output terminal
8, 9
Q2, Q3
O
Not used
10
Q4
O
CD muting on/off control signal output terminal
11
Q5
O
Tuner muting on/off control signal output to the FM/AM tuner pack
12
Q6
O
Power amplifier on/off control signal output terminal
13
Q7
O
Loading motor drive signal output terminal
14
Q8
O
Loading motor drive signal output terminal
15
Q9
O
Table motor drive signal output terminal
16
Q10
O
Table motor drive signal output terminal
17
Q11
O
Front speaker on/off relay drive control signal output terminal
18
SO
O
Serial data output terminal Not used
19
OE
-
Not used
20
VDD
-
Power supply terminal (+3.3V)
