Sharp CD-DD4500 Service Manual page 67

IC702 VHiBU2092F/-1: Input/Output Expander (BU2092F)
Pin No. Port Name
1
2
3
4
5 Q0
6 Q1
7 Q2
8 Q3
9 Q4
10* Q5
11* Q6
12* Q7
13* Q8
14* Q9
15* Q10
16* Q11
17
18
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
IC181 VHiBU2092F/-1: Input/Output Expander (BU2092F)
Port Name
Pin No.
1
2
3
4
5 Q0
6 Q1
7 Q2
8 Q3
9 Q4
10 Q5
11 Q6
12 Q7
13 Q8
14 Q9
15 Q10
16 Q11
17
18
Terminal Name Input/Output
VSS ––
DATA Input
CLOCK Input
LCK Input
T_SOL B Output
T_SOL A Output
T_MOTOR Output
PLAY_FWD LED Output
STOP LED Output
L+ Output
L- Output
N.C. ––
CD DISC1 LED Output
CD DISC2 LED Output
CD DISC3 LED Output
PLAY_REV LED Output
OE Input
VDD Input
Terminal Name Input/Output
VSS ––
DATA Input
CLOCK Input
LCK Input
C-SPRLY Output
S-SPRLY Output
SW-SPRLY Output
2ch/6ch-RLY Output
SW-MUTE Output
T_BIAS Output
T_T1/T2 Output
REC/PLAY Output
FAN CONT Output
-11dBATT Output
N.C. ––
DD RESET Output
OE Input
VDD Input
GND
Serial data input.
Shipt clock of data.
Latch clock of data.
TAPE 2 SOLENOID control.
TAPE 1 SOLENOID control.
Tape motor control.
Play forward LED.
Stop LED.
CD DISC 1 LED.
CD DISC 2 LED.
CD DISC 3 LED.
Play reverse LED.
Output enable.
Power.
GND
Serial data input.
Shipt clock of data.
Latch clock of data.
Center speaker relay control.
Surround speaker relay control.
Subwoofer speaker relay control.
Speaker control.
Subwoofer mute control.
Tape record bias.
Tape T 1/T 2 change.
Tape Rec/Play change.
Fan control.
-11 dB attenuator.
Dolby decorder reset.
Output enable.
Power.
– 67 –
CD-DD4500
Function
Function