Sony DSX-A50BT Service Manual page 28

DSX-A50BT
Pin No. Pin Name
67 to 71 NC
72 AMP_REM
73 SYS_EN
74 AUDIO_EN
75 BT_TX (A50)
76 BT_RX (A50)
77, 78 NC
79 RE_IN0
80 RE_IN1
81 BT_MIC_ON (A50)
82 BT_RTS (A50)
83 BT_CTS (A50)
84 BT_RESET (A50)
85 BT_POWER (A50)
86 NC
87 SYS_ON
88 RCIN1
89 KEYACK0
90 KEYACK1
91 NC
92, 93 KEYIN1, KEYIN0
94 AVSS
95 RC_IN0
96 AVRH
97 AVDD
98 LCD_CE
99 LCD_SO
100 LCD_CLK
28
I/O
- Not used
O Amplifi er remote output on/off control signal output terminal
O System power on/off control signal output to the DC/DC converter
O Power supply on/off control signal output terminal for audio section
O Serial data output to the Bluetooth section
I Serial data input from the Bluetooth section
- Not used
I Jog dial pulse signal input from the rotary encoder (A phase input) (for volume)
I Jog dial pulse signal input from the rotary encoder (B phase input) (for volume)
O Power supply on/off control signal output terminal for microphone signal
O Return to send signal output to the Bluetooth section
I Clear to send signal input from the Bluetooth section
O Reset signal output to the Bluetooth section
O Power supply on/off control signal output to the Bluetooth section
- Not used
O System on/off control signal output terminal
I Rotary commander shift key input terminal
I Key acknowledge detection signal input terminal for the rotary commander key entry
I Key acknowledge detection signal input terminal for the front panel key entry
- Not used
I Front panel key signal input terminal
- Ground terminal (for A/D converter)
I Rotary commander key input terminal
- Reference voltage terminal (+3.3V) (for A/D converter)
- Power supply terminal (+3.3V) (for A/D converter)
O Chip enable signal output to the liquid crystal display driver
O Serial data output to the liquid crystal display driver
O Serial data transfer clock signal output to the liquid crystal display driver
Description
"H": output on
"H": power on
"H": power on
"L": reset
"H": power on
"L": system on
"H": power on