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IC DESCRIPTION
IC, UPD780226GF-031-3BA
Pin No.
Pin Name
I/O
Description
1
O-MOTOR
O
Deck motor ON/OFF output.
2
O-SOL1
O
Deck 1 solenoid output.
3
O-SOL2
O
Deck 2 solenoid output.
4
O-STBY LED
O
Standby LED (ECO mode) output.
5
O-MUTE
O
System mute ON/OFF output.
6
O-KSCAN
O
Diode switch scan timing output.
7
O-PLL_CE
O
PLL IC chip enable output.
8
I-TM_BASE
I
Reference clock input for timer watch.
9
O-TU-ON
O
Tuner power supply ON/OFF output.
10
O-PB2
O
Deck 2 playback switch output.
11
O-VF
O
Vocal fader ON/OFF output. (Not used)
12
I-AUTO1
I
DECK 1 auto stop signal input.
13
O-CD1
O
CD1-LED illumination output.
14
O-CD2
O
CD2-LED illumination output.
15
O-CD3
O
CD3-LED illumination output.
16
I-AUTO2
I
DECK 2 auto stop signal input.
17
IC
–
Connected to GND.
18
VSS0
–
GND.
19
VDD0
–
Power supply.
20
O-POWER
O
System power supply ON/OFF output.
21
I-JOG_A
I
Rotary encoder A input (JOG).
22
I-JOG_B
I
Rotary encoder B input (JOG).
23
I-VOL_A
I
Rotary encoder A input (VOLUME).
24
I-VOL_B
I
Rotary encoder B input (VOLUME).
25
I-SUBQ
I
CD SUBQ data input.
26
I-WRQ
I
CD interruption signal input.
27
I-DRF
I
CD focus on detect data input.
I
MIC input for the vocal fader / Tuner RDS clock input (RDS only). (Connected to pull-down
resistor)
I
Tuner RDS data input (RDS only). (Connected to pull-down resistor)
I
System reset input ON/OFF.
Function IC / Tuner IC data output.
MICON clock shift output.
I
Tune IF count serial data input.
I
System remote control signal input.
35
I-DISH
I
CD turn table photo sensor A/D converter input.
36
I-STEREO
I
Tuner stereo detected input.
37
VDD1
–
Power supply.
38
X2
–
4.19 MHz oscillator circuit.
39
X1
–
4.19 MHz oscillator circuit.
40
VSS1
–
GND.
41
AVDD
–
Power supply.
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