Yamaha RX-V2065 Service Manual page 86

RX-V2065/HTR-6295
Function
Pin
Port Name
No.
(P.C.B.)
P33
83 SP_IMP
P33/A11(/D11)
P32
84 HP_N_DET
P32/A10(/D10)
P31
85 E2R_N_CS
P31/A9(/D9)
P124
86 MUTE_N_Z3
P124
P123
87 MUTE_N_Z2
P123/CTS6/RTS6
RXD6
HDR_MISO
P122/RXD6
88
P122 TUN_N_ST
P121
89 MUTE_N_SW
P121/CLK6
TXD6
HDR_MOSI
P120/TXD6
HDR_MOSI
90
P120
(TUNCEC_N_
EN)
Vcc2
91 Vcc2
Vcc2
P30
92 MUTE_N_SB
P30/A8(/D8)
Vss
93 Vss
Vss
P27 HDR_N_RST
P27
94 TUN_N_
TUND
P27/A7/(/D7)/AN27
P26 HDMI_N_
95
P26/A6/(/D6)/AN26 INT_TX
P25
96 +3.3S_PON
P25/A5/(/D5)/AN25
P24
97 PRY
P24/A4/(/D4)/AN24
P23
98 I_PRT
P23/A3/(/D3)/AN23
P22
99 MUTE_N_S
P22/A2/(/D2)/AN22
P21
100 MUTE_N_C
P21/A1/(/D1)/AN21
P20
101 MUTE_N_F
P20/A0/(/D0)/AN20
INT5
102 ACPWR_DET
P17/D15/INT5
INT4
103 PSW_DET
P16/D14/INT4
INT3
104 REM_IN
P15/D13/INT3
86
I/O
Name
O HiZ HiZ HiZ
I O O O
CS CS CS I
O O O O
O O O O
SI I I I
I O O O
O O O O
SO O O O
O O O O
MCU MCU MCU MCU [MCU]
O O O O
MCU MCU MCU MCU [MCU]
O O O O
I O O O
I I O O
O O O O
O O O O
I I O O
O O O O
O O O O
O O O O
IRQ IRQ IRQ IRQ
IRQ IRQ IRQ IRQ
IRQ IRQ IRQ IRQ
Speaker impedance relay control
GND pull down
[HiZ] Set to 8 ohms: Hi-Z (Relay OFF, B voltage High)
Set to 6 ohms plus during rising temperature: High (Relay ON, B
voltage Low)
Headphone detection
[O] +3.3S pull up
L: Headphone
EEPROM chip select
[I]
Pull up to EEPROM power at 10 k-ohms
Zone3 line out mute control
[O]
L: Mute
Zone2 line out mute control
[O]
L: Mute
Asynchronous data input for HD Radio
To prevent pulling of HD Radio's High output and microprocessor's Low
[I]
Fix output, switch to constant input
FM/AM tuner STEREO detection input
[O] +3.3S to 47k then pull up
Subwoofer mute control
[O]
L: Mute
[O] HD Radio asynchronous data output
FM/AM tuner CEC enable output
Pull up at +3.3SDSP
[O]
L: Enable, H: Disable
Microprocessor power supply
Surround back/Bi-AMP/Zone2 mute control
[O]
L: Mute
Microprocessor GND
[O] HD Radio reset
FM/AM tuner TUNED input
[O] +3.3S to 47k then pull up
HDMI TX1,2 interrupts (receive with polling)
O
TUN_N_ST is received by pin 88
+3.3S power supply ON/OFF control
H: ON, L: OFF
[I] At standby sleep, becomes L [to avoid unnecessar y power
consumption (Mute, pull Up)] Input (HiZ) then mechanically +3.3S
power switches on (to function Mute, when power down is detected
Power relay ON/OFF control
[O]
H: ON, L: OFF
[O] Overcurrent protection detection
Surround mute control
[O]
L: Mute
Center mute control
[O]
L: Mute
Front (Headphone is contained) mute control
[O]
L: Mute
AC power detection
[O]
L: Power down
Main/Zone/Input key interrupt
[O]
KEY1 port distinguishes the pressed keys
[O] Remote control pulse input
Detail of Function
(U model)
(U model)
(C, R, T, K, A, B, G, E, F, L, J models)
(U model)
(C, R, T, K, A, B, G, E, F, L, J models)
All