Yamaha DSP-AX763, Service Manual

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78
RX-V663/HTR-6160/DSP-AX763
RX-V663/HTR-6160/
DSP-AX763
Function Name
(P.C.B.)
Power ON VPWR OFF STBY Thrh
Port Name
Pin
No.
232C ON [232C OFF] STANDBY [STBY Sleep]
Detail of Function
STBY CEC MCU Sleep [Sleep]
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
P123
RXD6
CLK6
TXD6
Vcc2
P30
Vss
P27
P26
P25
P24
P23
P22
P21
P20
INT5
INT4
INT3
P14
P13
P12
P11
P10
P07
P06
P05
P04
P114
P113
ISRXD1
P111
CS
I
I
SI
SI
SO
SO
SO
MCU
O
MCU
I
I
O
O
I
O
O
O
IRQ
IRQ
IRQ
O
O
O
O
O
O
I
I
I
I
I
SI
I
CEP
HDRD_N_RST
MOD1
SDRP
HDRD_MISO
SCKP
SDTP
HDRD_MOSI
Vcc
TMT
Vss
/TUNED
/ST
PSV
PRY
PRI
Z2RY
SBRY
SPC
PDET
/PSW
REM
SPB
SPA
SP_IMP
TRIG
PDLED
/RSTFD
ISA
ISB
TONEA
TONEB
VRA
RXDSR
VRB
O
I
I
I
O
O
O
MCU
O
MCU
I
I
O
O
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
O
O
O
O
O
MCU
O
MCU
O
O
[O]
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
[ I ]
O
O
O
O
O
MCU
O
MCU
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Chip enable output for tuner PLL
Reset output for HD Radio
Use prohibited, always set to input (HiZ)
Data is taken in with PSV port set to High 20ms after resetting is cancelled
(U model)
Model detect 1 (net)
Synchronous data input for tuner PLL
Asynchronous data input for HD Radio (U model)
Synchronous clock output for tuner PLL
Synchronous data output for tuner PLL
Asynchronous data output for HD Radio (U model)
TUNER Mute output
H: Mute
Always Mute when tuner is not selected
Commonly used with ZONE mute being in use when selecting FM/AM band
TUNER TUNED input
Pull up to +5S
TUNER STEREO input
Pull up to +5S
+5S ON/OFF control
* +5S is OFF in the sleep mode so as to reduce wasteful power consump-
tion when set to low power consumption (Mute circuit, pull up, etc.)
* Shifted to sleep mode about 10 seconds after SYSTEM OFF
Power relay control
Protection excess current detect
ZONE2 SP relay control
Z2RY and SPB must not be High at the same time
Surround back SP relay control
Center & surround SP relay control
Interrupt input for power down detect
MAIN power/ZONE2 power /SCENE1-4SW interrupt
Pressed SW is judged by ADKEY0 and ADKEY1
Remote control pulse input
Front SP B relay control
Front SP A relay control
±
B voltage control by impedance selection
Power consumption is reduced because B voltage becomes Low
Low (Relay OFF, B voltage High) when set to 8 ohm, High (Relay ON, B
voltage Low) when set to 6 ohms and temperature rises
DC TRIGGER output
Pure direct LED
Reset output for FL driver
Rotary A for input selector
Rotary B for input selector
Rotary A for TONE/PROGRAM
Rotary B for TONE/PROGRAM
Rotary A for volume
Asynchronous communication data input for SIRIUS radio
Serial communication is 5V TTL/CMOS logic level
Pull Down by 100k-ohms
Rotary B for volume
I/O