Yamaha RX-V671 Service Manual page 79

IC308: LC709004A-TLM-E (VIDEO P.C.B.)
I/O-expander for microcontroller
Pin
Port Name Function Name
No.
8 P17 VID_N_MMT
9 P16 VID_BYPS
10 P15 –
11 P14 –
12 P13 CPNT_N_VMT
13 P12 DC_TRG1
14 P11 –
15 P10 –
17 P07 VID_N_RMT
18 P06 VID_SEL1
19 P05 VID_SEL2
20 P04 VID_SEL3
21 P03 CPNT_BYPS
22 P02 CPNT_SEL
23 P01 –
24 P00 –
Serial/parallel converter/shift register
DIN 2
CLK# 3
CS#
4
RES# I/O control/output register
21
port 0 I/O buffer
24
Related Power Supply
ON OFF
I/O Logic I/O Logic
O L act O
O H act O
O Low O
O Low O
O L act O
O H act O
O Low O
O Low O
O L act O
O O
O O
O O
O H act O
O L act O
O Low O
O Low O
14 DOUT
15 VDD
19 VSS
port 1 I/O buffer
17 15 8
Detail of Function
Low Monitor output mute
Low Composite bypass line select
Low No used
Low No used
Low Component output mute
Low Control out 1
Low No used
Low No used
Low AVOUT mute
Low Input select of Y/C
Low Input select of Y/C
Low Input select of Y/C
Low Component bypass line select
Low Component input select
Low No used
Low No used
RX-V671/HTR-6064/RX-A710
79