Yamaha RX-V565 Service Manual page 84
Av receiver/av amplifier
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Also See for RX-V565:
- Service manual (150 pages) ,
- Owner's manual (136 pages) ,
- Firmware update procedures (5 pages)
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RX-V565/HTR-6250/AX-V565
Function
Pin
Port Name
No.
P43
73
SPRY_C
P43/A19
Vcc2
74
Vcc2
Vcc2
P42
75
SPRY_S
P42/A18
Vss
76
Vss
Vss
P41
77
VOL_SCK
P41/A17
P40
78
VOL_MOSI
P40/A16
P37
79
SPRY_SB
P37/A15(/D15)
80 P36
SPRY_Z2
81 P35
SPRY_Z3
P34
82
HPRY
P34/A12(/D12)
P33
83
SP_IMP
P33/A11(/D11)
P32
84
HP_N_DET
P32/A10(/D10)
P31
85
E2R_N_CS
P31/A9(/D9)
86 P124
MUTE_N_Z3
87 P123
MUTE_N_Z2
88 P122
HDR_MISO
P121
89
MUTE_N_SW
P121/CLK6
90 P120
HDR_MOSI
Vcc2
91
Vcc2
Vcc2
P30
92
MUTE_N_SB
P30/A8(/D8)
Vss
93
Vss
Vss
P27
TUN_N_TUND
94
P27/A7/(/D7)/AN27
P26
95
TUN_N_ST
P26/A6/(/D6)/AN26
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 IRQ
P17/D15/INT5
INT4
103
PSW_DET
P16/D14/INT4
84
I/O
Name
(P.C.B.)
O
O
O
O
MCU MCU MCU MCU MCU Microprocessor power supply
O
O
O
O
MCU MCU MCU MCU MCU Microprocessor GND
O
O
O
O
O
O
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
CS
CS
CS
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
MCU MCU MCU MCU MCU Microprocessor power supply
O
O
O
O
MCU MCU MCU MCU MCU Microprocessor GND
I
O
O
O
I
O
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
Detail of Function
O
Center speaker relay control
O
Surround speaker relay control
O
Electronic volume Flip-flop synchronous clock output
O
Electronic volume Flip-flop synchronous data output
O
Surround back/Bi-AMP relay control
O
O
O
Head phone relay control
Speaker impedance relay control
Set to 8 ohms: Low (Relay OFF, B voltage High)
O
Set to 6 ohms plus during rising temperature: High (Relay ON, B
voltage Low)
Headphone detection
O
L: Headphone
+3.3S pull up
EEPROM chip select
I
At 10 k-ohms pull up to EEPROM power
O
O
O
Subwoofer mute control
O
L: Mute
O
Surround back/Bi-AMP/Zone2 mute control
O
L: Mute
FM/AM tuner TUNED input
O
+3.3S to 47k then pull up
FM/AM tuner STEREO detection input
O
+3.3S to 47k then pull up
+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)
O
Power relay ON/OFF control 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
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