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RX-V471/HTR-4064
• Microprocessor extended port
IC51, 53: TC74VHC273FT (DIGITAL P.C.B.)
Octal D-type flip-flop with clear
CLR
1
Q1
2
D1
3
D2
4
5
Q2
6
Q3
D3
7
D4
8
9
Q4
GND
10
Inputs
CLR
D
CK
L
X
X
H
L
H
H
H
X
IC51
Pin
R32C external bus data
No.
2 D8
5 D9
6 D10
9 D11
12 D12
15 D13
16 D14
19 D15
IC53
Pin
R32C external bus data
No.
2 D0
5 D1
6 D2
9 D3
12 D4
15 D5
16 D6
19 D7
70
20 V CC
19
Q8
D1
D8
18
3
1
CLR
17
D7
16
Q7
15
Q6
11
CK
14
D6
13
D5
12
Q5
CK
11
Output
Function
Q
Clear
L
L
−
−
H
Q n
No Change
Function Name
Related power supply
USB_N_CS
USB_N_RST
APL_N_RST
APL_N_CS
(no_use)
DK2_PON
VDEC_PON
VID_PON
Function Name
Related power supply
SPRY_5CH
SPRY_SB&BA
(no_use)
HPRY
TRANS_RY
PRY
DIR_N_RST
DSP_N_RST
D2
D3
D4
4
7
8
D R
D R
D R
D R
CK Q
CK Q
CK Q
CK Q
2
5
6
9
Q1
Q2
Q3
Q4
I/O
ON
OFF
O
O
USB chip select
O
O
USB reset
O
O
Apple reset
O
O
Apple chip select
O
O
Unconnected
O
O
No used
O
O
No used
O
O
Video power supply control
I/O
ON
OFF
O
O
SP relay 5ch (L, C, R, SRL, SRR)
O
O
SP relay surround back and Bi-Amp
O
O
Unconnected
O
O
HP relay
O
O
SP impedance switch (±B voltage switch)
O
O
Power relay
O
O
DIR reset
O
O
DSP reset
D5
D6
D7
D8
13
14
17
18
D R
D R
D R
D R
CK Q
CK Q
CK Q
CK Q
12
15
16
Q5
Q6
Q7
Detail of Function
Detail of Function
19
Q8
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