Sony HCD-RV22 Service Manual page 57

• IC371 BU2099FV (SP DRIVER) (MAIN BOARD (2/2))
Pin No. Pin Name
1 VSS
2 N.C.
3 DATA
4 CLOCK
5 LCH
6 Q0
7 Q1
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 pin
— Not used. (Open)
I Serial data input from the motor/plunger driver
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
O Recording bias control signal output
O Not used. (Fixed at "L" in this set.)
O CD muting on/off control signal output
O Tuner muting on/off control signal output
O Power amplifier on/off control signal output
O Loading motor drive signal output
O Loading motor drive signal output
O Table motor drive signal output
O Table motor drive signal output
O Front speaker on/off relay drive control signal output
O Serial data output Not used (Connect to ground in this set.)
— Not used. (Open)
— Power supply pin (+3.3 V)
HCD-RV22/RV55
Pin Description
57