Sony CX-JT7 - IC Pin Function Description

57
CX-JT7
6-33. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC309 BU2099FV (MULTI CONTROLLER)
Pin No. Pin Name I/O Description
1 VSS — Ground terminal
2NC—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
8A/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)