Sony STR-DB795, Руководство по обслуживанию

Страница: 67 / 98

67
STR-DB795
Pin No.
Pin Name
I/O Description
97 VCC
-
Power supply terminal (+3.3V)
98 VSS
-
Ground terminal
99 UP CON SDA
O
Serial data output to the video sync separator
100 UP CON SCL
O
Serial data transfer clock signal output to the video sync separator
101 VSS
-
Ground terminal
102 HDOUT
I
Serial data input from the audio digital signal processor
103 HDIN
O
Serial data output to the audio digital signal processor
104 HCLK
O
Serial data transfer clock signal output to the audio digital signal processor
105 GP12
O
Write signal output to the audio digital signal processor
106 XRST
O
System reset signal output to the audio digital signal processor "L": reset
107 PM1
O
PLL initialize signal output to the audio digital signal processor
108 DA1DO
I
Serial data input from the D/A converter
109, 110
SOT1, SIN1
-
Not used
111 EEPROM SCL
O
Serial data transfer clock signal output to the EEPROM
112 EEPROM SDA
I/O
Two-way data bus with the EEPROM
113 FL STB
O
Strobe signal output to the fluorescent indicator tube driver
114 to 117
VIDEO_SW1 to
VIDEO_SW4
O
Video selection signal output terminal
118 PROTECTOR
I
Protect detection signal input from the protect circuit
119 LIMITTER.OUT
O
Output voltage control signal output terminal
120
FUNCTION.SW.
LAT
O
Serial data latch pulse signal selection signal output terminal "L": for electrical volume, "H":
for function switch
121
ANALOG_
DIGITAL
O
Analog/digital selection signal output terminal "L": analog, "H": digital
122 VCC
-
Power supply terminal (+3.3V)
123 to 125
NC
-
Not used
126 DAVS
-
Power supply terminal (+3.3V) (for internal D/A converter)
127 DAVC
-
Ground terminal (for internal D/A converter)
128 AVCC
-
Power supply terminal (+3.3V) (for analog)
129 AVRH
I
Reference voltage (+3.3V) input terminal
130 AVRL
I
Reference voltage (0V) input terminal
131 AVSS
-
Ground terminal (for analog)
132, 133
AD1, AD2
I
Front panel key input terminal (A/D input)
134 LIMITTER.IN
I
Voltage limit detection signal input terminal
135 RDS_SIGNAL
I
RDS signal input from the tuner unit (AEP and UK models only)
136 AD5 (NC)
-
Not used
137 NC
-
Not used
138 VERSION
I
Destination setting terminal
139 NC
-
Not used
140 VCC2
-
Power supply terminal (+3.3V)
141 BACKUP
-
Not used
142 GND
-
Ground terminal
143 OPEN
-
Not used
144 VSS
-
Ground terminal