Sony MEX-1HD Service Manual page 76

MEX-1HD
Pin No. Pin Name
171, 172 RXD0, RXD2
173 DGND
174 SUB_TXD
175 D1.9V
176 to
NC
178
179 XIDE_RST
180 MS_PWR
181 DGND
182 NC
183 D3.3V
184 NC
185 XUSB_RST
186 XHB_RST
187 XHB_RST
188 SH_WDT
189 XFAIL
190 D_MUTING
191 XDREQ0
192 XDREQ1
193 XRST_SYS
194 CA
195 to
MD3 to MD5
197
198 DGND
199 USB_VCCD
200 SA_DATA
201 RE_LB
202 to
NC
204
205 D3.3V
206, 207 NC
208 DGND
76
I/O
I Not used
— Ground terminal
I UART transmit data input from the system controller "L" active
— Power supply terminal (+1.9V)
— Not used
O
Reset signal output terminal for the CD DSP "L" reset
Memory stick power supply on/off control signal output terminal
O
"H": memory stick power on
— Ground terminal
O Not used
— Power supply terminal (+3.3V)
O Not used
O
Reset signal output for the USB interface IC "L" reset
O Reset signal output for the DSP "L" reset
O
Reset signal output for the memory stick interface IC "L" reset
O
Watch dog timer detection signal output to the system controller
O Rewriting failure detection terminal "L" rewriting failure Not used
O
Muting on/off control signal output "L": muting on
I
DMA request signal input from the USB interface IC
I
DMA request signal input from the display controller
I System reset signal input from the system controller
I
Chip active signal input terminal
I Clock mode selection input terminal
— Ground terminal
I
Not used
I Spectrum analyze data input from the electrical volume
I Rotary encoder dial pulse input terminal (left/B phase input) Not used
I Not used
— Power supply terminal (+3.3V)
I Not used
— Ground terminal
Description