Yamaha HTY-7040, Service Manual

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64
YSP-4000/YSP-40D/HTY-7040
YSP-4000/YSP-40D/
HTY-7040
No. Port Name
Function Name
Port I/O Detail of Function
(P.C.B.)
Key detection for A/D port
Pull-up resistance 10 k-ohms
R [ohm]
V [V]
KEY0 (138 pin/AN2)
KEY1 (139 pin/AN1)
0 k
0-0.2
VOLUME -
1.2 k
0.3-0.5
INPUT
–
Destination for A/D port
Pull-up resistance 10 k-ohms
R280 [ohm]
133 pin/AN7 [V]
J
–
3.1-3.3
UC
39 k
2.5-2.8
KV
24 k
2.2-2.5
A
10 k
1.5-1.8
B
15 k
1.8-2.1
GE
91 k
2.8-3.1
L
6.8 k
1.2-1.5
Model for A/D port
R327 [ohm]
141 pin/AN0 [V]
YSP-4000/YSP-40D
–
3.0-3.3
HTY-7040
10 k
0.3-0.5
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
Chip select signal to EEPROM
Pull down
Terminated
Terminated
Clock signal for analog input select
Data signal for analog input select
Terminated (VOUT_MUTE)
Terminated (V_MUTE)
Terminated (V_SEL3)
Terminated (V_SEL2)
Terminated (V_SEL1)
Terminated (V_SEL0)
Terminated
Data signal to XM
XM power supply control signal
Data signal from XM
Selection of destination input
Voltage of power supply detection input 1
+3.3V detection
Voltage of power supply detection input 2
Pull down
Key input 0
Key input 1
GND
Selection of model input
+3.3V
+3.3V
Clock input/output of HDMI serial port (400kHz)
PO113
PO112
PO111
PO110
PO03
PO02
PO01
PO00
PO157
PO156
PO155
PO154
PO153
PI152
PO151
VSS
PO150
VCC1
AN7
AN6
AN5
AN4
AN3
AN2
AN1
AVSS
AN0
VREF
AVCC
PO97
E2PROM_CS
Reserved
Reserved
Reserved
IN_SEL_CL
IN_SEL_DA
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
XM_RX
XMPWR
XM_TX
VCC
DEST
VOL_DET1
+3.3_DET
VOL_DET2
Reserved
KEY0
KEY1
MODEL
SCL_400L
Output
Input
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input/Output