Yamaha RX-V765 Service Manual page 85

Function
Pin
Port Name Name
No.
(P.C.B.)
P02
120 SEL_PD
P02/D2/AN02
P01
121 ADC_N_PDWN
P01/D1/AN01
P00
122 FLD_N_CS
P00/D0/AN00
AN157
123 P157/AN157/CTS6/ L3_DET
RTS6
AN156
124 THM
P156/AN156/CLK6
AN155
125 AMP_OLV
P155/AN155/RXD6
AN154
126 DC_PRT
P154/AN154/TXD6
AN153
127 P153/AN153/CTS5/ MODEL
RTS5
ISRXD0
128 P152/AN152/ E2R_MISO
ISRXD0/RXD5
ISCLK0
129 P151/AN151/ISCLK0/ FLD_SCK
CLK5
Vss
130 Vss
Vss
ISTXD0
131 P150/AN150/ISTXD0/ FLD_MOSI
TXD5
Vcc1
132 Vcc1
Vcc1
AN7
133 KEY1
P107/AN7/KI3/RTP33
AN6
134 KEY2
P106/AN6/KI2/RTP32
AN5
135 PS1_PRT
P105/AN5/KI1/RTP31
AN4
136 PS2_PRT
P104/AN4/KI0/RTP30
137 P103 ISEL_RA
138 P102 ISEL_RB
AN1
139 DEST
P101/AN1/RTP11
AVss
140 AVss
AVss
AN0
141 DOCK_TYPE
P100/AN0/RTP10
Vref
142 VREF
Vref
AVcc
143 AVcc
AVcc
RXD4
144 P97/ADTRG/RXD4/ IPD_MISO
SCL4/STXD4
I/O
O O O O O
O O O O O
CS O O O O
AD O O O O
AD AD O O O
AD AD O O O
AD AD O O O
AD AD O O O
SI SI SI O O
SO SO SO O O
MCU MCU MCU MCU MCU Microprocessor GND
SO SO SO O O
MCU MCU MCU MCU MCU Microprocessor power supply
AD AD AD I O
AD AD AD I O
AD AD O O O
AD AD O O O
O O O O O
O O O O O
AD AD AD O O
MCU MCU MCU MCU MCU Microprocessor GND
AD AD AD I O
MCU MCU MCU MCU MCU Microprocessor power supply
MCU MCU MCU MCU MCU Microprocessor power supply
SI I I I O
Detail of Function
DSP Pure Direct route select
H: Pure Direct ON
ADC power down
L: Power down
FL driver chip select
Component video aspect detection
Temperature detection
Power AMP output level detection
Power AMP DC detection
Destination discrimination by AD value
When AD is taken in at power on, there is 1m sec waiting time after AD input
port setting
Synchronous data input for EEPROM
FL driver, OSD, IO extended IC (Video), series 1 k-ohms go into
synchronous clock output for EEPROM FL driver
FL driver, OSD, IO extended IC (Video), series 1 k-ohms go into
synchronous data output for EEPROM FL driver
KEY1 AD value taken in
Duing PSW_DET interruption, distinguishes the used keys which are
switched to AD
KEY2 AD value taken in
Duing PSW_DET interruption, distinguishes the used keys which are
switched to AD
PS protection detection 1
PS protection detection 2
AD destination discrimination
Data is taken in when resetting is cancelled
DOCK discriminate
Identifies the connected DOCK type, then switches the action
During IPD_DET interruption, switches to AD, make a distinction based on
post-10 ms A/D value
Make a distinction from IPD_DET Low edge through post-10ms A/D value
Asynchronous data input for iPod
To prevent pulling of iPod High output and microprocessor Low Fix output,
input setup
RX-V765/HTR-6270/AX-V765
85