Sony SRP-X700P Service Manual page 58

Pin No. Pin name
71 RAMCS
72 DSP2CS
73 DSP1CS
74 PFI2
75 WDTOVF
76 PLLVCC
77 PLLCAP
78 PLLVSS
79 RES
80 PFI
81 STBY
82 FEW
83 XTAL
84 VCC
85 EXTAL
86 VSS
87 OCS1
88 OCS2
89 PVCC1
90 PF7
91 VSS
92 AS
93 RD
94 WR
95 LWR
96 WAIT
97 BACK
98 BREQ
99-100 N.C.
101 AVCC
102 VREF
103-106 FRAD0-3
107-110 PIAD0-3
111 TH1
112 MICSW_A
113 MICSW_B
114 TH2
115 LED1
116 LED2
117 HMUTING
118 DCPT
119 AVSS
120 DSPPWR
121 DREQ
122 CTRLS_SC
123 P73
124 LINEMUTE
125 AVSEL
126 USBRXD
127 USBTXD
128 MD0
I/O
O RAM (IC101,102) chip select terminal.
O DSP2 (IC107) chip select terminal.
O DSP1 (IC103) chip select terminal.
I PFI check terminal.
– Not used.
– +3.3V.
– The terminal to which external PLL capacitor is going to be connected.
– GND.
I Reset terminal.
I Power failure detection terminal.
I Fixed to high (+3.3V).
I Fixed to high (+3.3V).
I Clock (15MHz) input terminal.
– +3.3V.
– Not used.
– GND.
– Fixed to high (+3.3V).
– Not used.
– +3.3V.
I Fixed to low (GND).
– GND
– Not used.
O Memory read terminal.
O Memory write terminal.
– Not used.
I Wait request terminal during DSP data write.
O DSP bus right request acknowledge terminal.
I DSP bus right request terminal.
– Not used.
– +5V.
I A/D converter reference voltage terminal. Fixed to +5V.
I A/D converter input terminal for front panel VR and SW detection.
I A/D converter input terminal for parallel input detection.
I A/D converter input terminal for power amplifier CH1 temperature detection.
I A/D converter input terminal for MIC1-3 back panel SW ON/OFF detection.
I A/D converter input terminal for MIC4-6 back panel SW ON/OFF detection.
I A/D converter input terminal for power amplifier CH2 temperature detection.
I Wireless tuner-1 RF LED detection terminal.
I Wireless tuner-2 RF LED detection terminal.
I Power amplifier IC (IC003) HMUTING detection terminal.
I Power amplifier muting relay ON/OFF detection terminal.
– GND.
I DSP reset release check terminal.
I DMA data transfer start terminal between DSP-CPU.
O Control-S subcarrier output terminal. (40 kHz)
I Fixed to low (GND).
O LINE OUT/REC OUT muting terminal.
O LINE4 AUDIO SELECTOR IC (IC502, IC504) serial data enable terminal.
I USB receive data.
O USB send data.
– Fixed to low (GND).
Function
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