Yamaha RX-A710 - Page 77

Pin
No.
R32C external
bus data
Function Name
Related Power Supply
Detail of FunctionON OFF
I/O Logic I/O Logic
2 D[0] HEQ_N_RST O L act O Low HDMI switcher reset
5 D[1] VDEC_N_RST O L act O Low Video decoder reset
6 D[2] USB_OC_FLG O H act O Low USB overcurrent detection flag R32C to BF
9 D[3] HRX_VSEL O L DEC O Low Video decoder to scaler line enable
12 D[4] F_HEQ_CE O H act O Low Front HDMI EQ chip enable
15 D[5] VID_PON O H act O Low Video power supply
16 D[6] +3.3D_PON O H act O Low OR of HDMI_PON, DSP_PON, NET_USB_PON
19 D[7] PRY O H act O Low Power relay
IC84, 85: TC74VHC273FT (DIGITAL P.C.B.)
Octal D-type flip-flop with clear
• Microprocessor extended port
1CLR
Q1
Q2
Q3
Q4
GND
D1
D2
D3
D4
2
3
4
5
6
7
8
9
10
DCKCLR
L
H
H
H
XX
L
H
X
1
11
3
2
D
R
CK
Q
D1
Q1
CLR
CK
Q
L
L
H
Q
n
Inputs Output
Function
Clear
−
−
No Change
20 V
CC
Q8
Q7
Q6
Q5
CK
D8
D7
D6
D5
19
18
17
16
15
14
13
12
11
4
5
D
R
CK
Q
D2
Q2
7
6
D
R
CK
Q
D3
Q3
8
9
D
R
CK
Q
D4
Q4
13
12
D
R
CK
Q
D5
Q5
14
15
D
R
CK
Q
D6
Q6
17
16
D
R
CK
Q
D7
Q7
18
19
D
R
CK
Q
D8
Q8
Pin
No.
R32C external
bus data
Function Name
Related Power Supply
Detail of FunctionON OFF
I/O Logic I/O Logic
2 D[8] HDMI_PON O H act O Low HDMI power supply (Necessary for DSP, AVIDEO drive)
5 D[9] HRX_N_RST O L act O Low HDMI RX reset
6 D[10] HTX1_N_RST O L act O Low HDMI TX reset
9 D[11] HTX2_N_RST O L act O Low HDMI TX2 reset
12 D[12] FROM_N_RST O L act O Low FLASH reset
15 D[13] HTX_AUSEL O H HRX O Low HDMI TX sound select
16 D[14] HAU_N_OE O L act O Low HDMI to DIR sound output enable
19 D[15] VIDI2C_ON O H act O Low I2C line switch to video device
IC84 (D-FF12)
IC85 (D-FF11)
77
RX-V671/HTR-6064/RX-A710
RX-V671/HTR-6064/
RX-A710
DRAFT