Yamaha RX-V671 Service Manual page 78

RX-V671/HTR-6064/RX-A710
IC89: SN74LV4051APWR (DIGITAL P.C.B.)
8-channel analog multiplexers/demultiplexers
Y4 1 16 V
CC
INH
Y6
2 15
Y2
L
COM 3 14
Y1
L
Y7 4 13
Y0
L
Y5 5 12
Y3
L
INH 6 11
A
L
7 10
GND B
L
9
8 C
GND
L
L
H
Pin
Port Name Function Name
No.
AD selector 1 (AD1_COM signal is input into AN_5 of R32C)
1 Y4 PS2_PRT
2 Y6 PS1_PRT
4 Y7 AMP_OLV
5 Y5 DC_PRT
12 Y3 THM1
13 Y0 DK1_ID
14 Y1 L3_DET
15 Y2 MODE
DOCK detection for AD port
Pull-up resistance 10 k-ohms
DOCK type Bluetooth
(DKID 13 pin) (YBA-10)
A/D value
5 – 25
(3.3 V=255)
78
INPUTS ON
CHANNEL
C B A
L L L Y0
L L H Y1
Y2
L H L
L H H Y3
H L L Y4
H L H Y5
H H L Y6
Y7
H H H
X X X None
INH
Related Power Supply
ON
I/O Logic
I A/D
I A/D
I A/D
I A/D
I A/D
I A/D
I A/D
I A/D
Wireless iPod
(YID-W10) (YDS-10/11/12(B*))
85 – 100
* Mode switch setting of the YDS-12
11
A
10
B
9
C
6
OFF
I/O Logic
I --- Power supply protection 2
I --- Power supply protection 1
I --- Amplifier output level detection
I --- DC protection
I --- Temperature detection 1
I --- Dock ID detection
I --- D terminal L3 detection
I --- Special mode distinction
iPod
(YDS-12(A*))
120 – 140 150 – 170
3
13
14
15
12
1
5
2
4
Detail of Function
No connected
255
COM
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7