Yamaha R-S700, Service Manual

Page: 38 / 84

38
R-S700
R-S70
0
Pin
No.
Port Name
Function Name
（
P.C.B.
）
I/O
Detail of Function
P
o
w
er On
Standb
y
MCU Sleep [A
C OFF]
62 Vcc2 VCC MCU MCU MCU
63 P3_0/A8 CD_SW I I I CD Direct detection
64 Vss VSS MCU MCU MCU
65 P2_7/AN2_7/A7 PD_SW I I I P u re Direct detection
66 P2_6/AN2_6/A6 N_PREMT O O O
PRE OUT MUTE control
Low = MUTE ON
67 P2_5/INT7/AN2_5/A5 IPD_MISO IRQ IRQ IRQ
iPod comm u nication detection interr u pt inp u t when in the standby mode
(Used when 29 pin common terminal is not available)
68 P2_4/INT6/AN2_4/A4 IPD_DET IRQ IRQ IRQ iPod detection interr u pt inp u t
69 P2_3/AN2_3/A3 DOCK_TYPE AD AD AD Eq u ipment type detection AD val u e inp u t
70 P2_2/AN2_2/A2 +5S_PON O O O +5S drive control
71 P2_1/AN2_1/A1 DEST AD AD AD Destination discrimination AD val u e inp u t
72 P2_0/AN2_0/A0 MODEL AD AD AD MODEL discrimination AD val u e inp u t
73 P1_7/INT5/D15 PRI IRQ IRQ IRQ
POWER AMP c u rrent protection detection interr u pt inp u t
Low = Normal, Hi = Abnormal
74 P1_6/INT4/D14 NC O O O Free terminal
75 P1_5/INT3/D13 PW_DET IRQ IRQ IRQ PW_DET detection interr u pt inp u t
76 P1_4/D12 NC O O O Free terminal
77
P1_3/TXD6/SDA6/
D11
EEP_SDA SO O O EEPROM I2C comm u nication b u s data
78
P1_2/RXD6/SCL6/
D10
EEP_SCL SO O O EEPROM I2C comm u nication b u s clock
79 P1_1/CLK6/D9 PRY O O O Power relay control
80 P1_0/CTS6/RTS6/D8 DLED O O O Direct LED power s u pply control
81 P0_7/AN0_7/D7 N_SWMT O O O
SUBWOOFER MUTE control
Low = MUTE ON
82 P0_6/AN0_6/D6 PWR_MGT I I I Power management detection inp u t
83 P0_5/AN0_5/D5 THMR AD AD AD Right-hand side heatsink temperat u re detection AD val u e inp u t
84 P0_4/AN0_4/D4 THML AD AD AD Left-hand side heatsink temperat u re detection AD val u e inp u t
85 P0_3/AN0_3/D3 SPBRY O O O Speaker B relay control
86 P0_2/AN0_2/D2 SPARY O O O Speaker A relay control
87 P0_1/AN0_1/D1 HPRY O O O Headphone relay control
88 P0_0/AN0_0/D0 NC O O O Free terminal
89 P10_7/AN7/KI3 PRD AD AD AD DC protection detection
90 P10_6/AN6/KI2 AD_VOL AD AD AD
91 P10_5/AN5/KI1 VRUP O O O
92 P10_4/AN4/KI0 VRDN O O O
93 P10_3/AN3 PRV AD AD AD Protection voltage detection AD val u e taken inp u t
94 P10_2/AN2 KEY1 AD AD AD KEY1 AD val u e taken inp u t
95 P10_1/AN1 KEY0 AD AD AD
96 Avss AVSS MCU MCU MCU
97 P10_0/AN0 REC AD AD AD REC OUT selector voltage detection AD val u e taken inp u t
98 Vref VREF MCU MCU MCU
99 Avcc AVCC MCU MCU MCU
100 P9_7/ADTRG/SIN4 DIG_SW I I I DIG_SW inp u t
Key detection for A/D port
Key inp
u t (A/D) p u ll- u p resistance 10 k-ohms
Ohm 0 + 1.0 k + 1.0 k + 1.5 k + 2.2 k + 3.3 k + 4.7 k
V 0 – 0.22 0.23 – 0.64 0.65 – 1.06 1.07 – 1.55 1.56 – 2.09 2.10 – 2.62 2.63 – 3.94
A/D conversion
val u e
(5.0 V=255)
0 – 11 12 – 32 33 – 54 55 – 79 80 – 107 108 – 134 135 – 156
KEY1
(94 pin of the
microprocessor)
PRESET
<
PRESET
>
FM AM
TUNING/CH <<
(U model)
TUNING/CH >>
(U model) ZONE 2
(U, C, A models) TUNING <<
(C, R, A, G models)
TUNING >>
(C, R, A, G models)
Ohm 0 + 1.0 k + 1.0 k + 1.5 k + 2.2 k + 3.3 k + 4.7 k
V 0 – 0.22 0.23 – 0.64 0.65 – 1.06 1.07 – 1.55 1.56 – 2.09 2.10 – 2.62 2.63 – 3.94
A/D conversion
val u e
(5.0 V=255)
0 – 11 12 – 32 33 – 54 55 – 79 80 – 107 108 – 134 135 – 156
KEY0
(95 pin of the
microprocessor)
DIMMER
(U, C, R, A models)
FM MODE INFO
(U, C, R, A models) MEMORY CLEAR
ZONE2
CONTROL
(U, C, A models)
SPEAKERS
A
SPEAKERS
B
TP (G model) INFO (G model)
Destination detection for AD port
P
u ll- u p resistance 10 k-ohms
Model detection for A/D port
Model inp
u t (A/D) p u ll- u p resistance 10 k-ohms
R550 (FUNCTION P.C.B.) 820 1.5 k 2.7 k 12 k 33 k
V 0.15 – 0.49 0.5 – 0.84 0.85 – 1.88 1.89 – 3.29 3.3 - 4.47
Destination U C R A G
A/D conversion val u e (5.0 V=255) 9 – 25 26 – 43 44 – 67 128 – 158 187 – 210
R516 (FUNCTION P.C.B.) 820
V 0.15 – 0.49
Model name R7 (R-S700)
A/D conversion val u e (5.0 V=255) 8-25