Ic Pin Function Description - Sony CX-JN44 Service Manual

6-22. IC PIN FUNCTION DESCRIPTION

• MAIN BOARD IC371 BU2099FV (LOADING/TABLE MOTOR DRIVER)
Pin No. Pin Name
1 VSS
2 N.C.
3 DATA
4 CLOCK
5 LCH
6 Q0
7 BIAS
8, 9 Q2, Q3
10 Q4
11 Q5
12 Q6
13 Q7
14 Q8
15 Q9
16 Q10
17 Q11
18 SO
19 OE
20 VDD
I/O
— Ground terminal
— Not used
I Serial data input from the system controller
I Serial data transfer clock signal input from the system controller
I Latch pulse signal input from the system controller
O Recording/playback selection signal output terminal
O Recording bias control signal output terminal
O Not used
O CD muting on/off control signal output terminal
O Tuner muting on/off control signal output to the FM/AM tuner pack
O Power amplifier on/off control signal output terminal
O Loading motor drive signal output terminal
O Loading motor drive signal output terminal
O Table motor drive signal output terminal
O Table motor drive signal output terminal
O Front speaker on/off relay drive control signal output terminal
O Serial data output terminal Not used
— Not used
— Power supply terminal (+3.3V)
Description
CX-JN44
47