47
CX-JS7
6-23.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC309 BU2099FV (MULTI CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VSS
—
Ground terminal
2
NC
—
Not used
3
DATA
I
Serial data input from the tape mechanism controller
4
CLOCK
I
Serial data transfer clock signal input from the system controller
5
LCK
I
Serial data latch pulse clock signal input from the system controller
6
REC
O
Recording on/off control signal output terminal “L”: recording
7
BIAS
O
Recording bias on/off control signal output terminal “L”: bias on
8
A/B
O
Deck-A/B selection signal output to the deck-A/B select switch “L”: deck-B, “H”: deck-A
9
PB MUTE
O
Playback muting on/off control signal output to the recording/playback equalizer amplifier
“H”: muting on
10
REC MUTE
O
Recording muting on/off control signal output to the recording/playback equalizer amplifier
“L”: muting on
11
TUNER MUTE
O
Tuner muting on/off control signal output to the tuner unit “H”: muting on
12
LM-R (CD)
O
Loading motor drive signal output terminal
13
LM-L (CD)
O
Loading motor drive signal output terminal
14
TM-R (CD)
O
Table motor drive signal output terminal
15
TM-L (CD)
O
Table motor drive signal output terminal
16
FRONT SPON/OFF
O
Front speaker on/off relay drive control signal output terminal “L”: front speaker on
17
REAR SPON/OFF
O
Surround speaker on/off relay drive control signal output terminal “H”: surround speaker on
Not used
18
SO
O
Serial data output to the bass boost controller
19
OE
—
Not used
20
VDD
—
Power supply terminal (+3.3V)
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9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
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