29
Serial clock input
UNI-LINK serial interface clock input terminal
Serial data output
UNI-LINK serial interface data output terminal
Serial data input
UNI-LINK serial interface data input terminal
Serial clock output
UNI-LINK serial interface clock output terminal
I
2
C bus serial data input/output
Serial interface with electronic volume IC, TUX-020
Electronic volume mute control output terminal
Mute terminal for electronic volume
I
2
C bus serial clock output
Serial interface with electronic volume IC, TUX-020
Power amplifier STANDBY control output
Performs standby on/off control of the power amplifier and power IC
Power amplifier mute control output terminal
Mute terminal during AMPON output ON/OFF
System MUTE control output
Mute control output of audio signal line output stage
Set the electronic volume also to - ∞ during active
Outputs “H” when mute is ON
Immediately sets into the input state during BU-INOFF
Tuner mute control output terminal
Controls FM and AM outputs from TUX
52 AMSON O Outputs “L” during AMS
FOR/REV control output
Controls tape running direction
Outputs “H” in the forward direction and “L” in the reverse direction
Metal control input/output
Switches between metal on/off MTL is present when initial “L” is input
Outputs “H” during MTL ON
Tape mute control output
FF and REW are active during ATA operations
Outputs “H” during mute on when the EQ IC is connected
Dolby control input/output
Sets the presence/absence of the Dolby function during the input mode during initialization
Switches DOLBY to on or off in the output mode normally
DOLBY is on when “L” is input Outputs “H” during DOLBY ON
Sound presence/absence detection input during AMS
Detects if tape audio sound is present or absent
Sound is present when “L” is input and absent when “H” is input
4VPREOUT model acknowledge terminal
Acknowledges as 4VPREOUT model when “L”, and changes the gain amount of the
electrical control IC
59 to 69 O Not used
Pin No.
Pin Name
I/O Function
46 VOLATT O
47 I2_CKO O
48 AMPON O
43 UNISI I
44 UNICKO O
45 I2C_SIO I/O
41 UNICLI I
42 UNISO O
49 AMPATT O
50 ATT O
56 DOLON I/O
57 AMSIN I
55 TAPATT O
51 TU_ATT O
53 NROUT O
54 MTLON I/O
58 4VPRE I
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