Yamaha HTR-3072, Руководство по обслуживанию

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Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
0 Ω +1.0 kΩ +1.0 kΩ +1.5 kΩ +1.5 kΩ +2.2 kΩ +3.3 kΩ +4.7 kΩ +22 kΩ +33 kΩ
Detected voltage value
at 91 pin
0 –
0.15 V
0.15 –
0.425 V
0.425 –
0.703 V 0.703 –
0.978 V 0.978 –
1.241 V
1.241 –
1.536 V 1.536 –
1.84 V
1.84 –
2.102 V
2.336 –
2.55 V
2.55 –
2.971 V
A/D value
(3.3 V = 255)
0 – 11 12 – 32 33 – 54 55 – 75 76 – 96 97 – 118 119 – 142 143 – 162 181 – 197 198 – 229
KEY1
RADIO
(SCENE4)
CD
(SCENE3)
TV
(SCENE2)
BD/DVD
(SCENE1)
INPUT INPUT
(power)
INFO
0 Ω +1.0 kΩ +1.0 kΩ +1.5 kΩ +1.8 kΩ +2.2 kΩ +3.3 kΩ +4.7 kΩ +6.8 kΩ +10 kΩ +22 kΩ +68 kΩ
Detected voltage value
at 92 pin
0 –
0.15 V
0.15 –
0.425 V
0.425 –
0.703 V 0.703 –
0.999 V 0.999 –
1.279 V
1.279 –
1.564 V 1.564 –
1.86 V
1.86 –
2.142 V
2.142 –
2.399 V
2.399 –
2.653 V 2.653 –
2.919 V 2.916 –
3.175 V
A/D value
(3.3 V = 255)
0 – 11 12 – 32 33 – 54 55 – 77 78 – 98 99 – 120 121 – 143 144 – 165 166 – 185 186 – 205 206 – 225 226 – 245
KEY2 DIRECT
TUNING TUNING
AM FM
PRESET PRESET MEMORY
(PAIRING)
TONE
CONTROL
STRAIGHT
PROGRAM PROGRAM
Pin
No.
Port Name
Function Name
(P.C.B.)
I/O
Detail of Function
Related power
supply
ON OFF
167 PK2/BELL/UT0DCD USB_IRPTO I I USB interrupt signal
168 PK3/BELH/UT0DSR ARC_I2S_SEL O O eARC & HDMI audio signal selector
169 PK4/WR/UT0DTR DSP1_N_SPIRDY I O
170 PK5/RD/UT0RIN – O O (no use)
171 PK6/WAIT/UT0CTS JTAG_TMS O O (no use)
172 PK7/BCLK/UT0RTS USB_VBUS_PON O O USB power on
173 PK8/INTC/BOOT FLASH_N_BOOT Boot mode control
174 PM0/SC7TXD DSP_MOSI O O DSP SPI transmit data
175 PM1/SC7RXD DSP_MISO I I DSP SPI receive data
176 PM2/SC7SCK/SC7CTS/TBEIN1 DSP_SCK O O DSP SPI communication clock
78
RX-V385/HTR-3072
RX-V385/HTR-3072