Sony NW-MS7 - Memory Stick Walkman, Service Manual

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Pin No. Pin Name I/O Pin Description
66 VCC — Power supply terminal
67 VSS — Ground
68 PD31 F_SO I EEPROM serial data signal input terminal
69 PD30 F_SI O EEPROM serial data signal output terminal
70 PD29 F_CLK O EEPROM clock signal output terminal
71 PD28 U_XRST O USB reset signal output terminal
72 PD27 G_XRST O ATRAC3 IC reset signal output terminal
73 PD26 F_RST O EEPROM reset signal output terminal
74 PD25 O Output port terminal Not used. (Open)
75 VSS — Ground
76 PD24 LCD_XRST O LCD reset signal output terminal
77 SCK1 O System clock signal output terminal Not used. (Open)
78 PD22 LCD_CLK O LCD clock signal output terminal
79 VCC — Power supply terminal
80 PD21 DA_XRST O DA reset signal output terminal
81 PD20 FWE_CTRL O Flash write enable control signal output terminal
82 VSS — Ground
83 VCC — Power supply terminal
84 PD19 HP_MUTING O Headphone mutting signal output terminal
85 PD18 HP_BEEP O Headphone beep signal output terminal
86 VSS — Ground
87 PD17 WKUP_MSK O Wake up maskable signal output terminal
88 PD16 S_XRST O MG IC reset signal output terminal
89 – 92 D15 – D12 I/O Data bus signal input/output terminal
93 VCC — Power supply terminal
94 D11 I/O Data bus signal input/output terminal
95 VSS — Ground
96 – 102 D10 – D4 I/O Data bus signal input/output terminal
103 VSS — Ground
104 VCC — Power supply terminal
105 – 108 D3 – D0 I/O Data bus signal input/output terminal
109 VSS — Ground
110, 111 MD0, MD1 I Mode setting input terminal
112 VCC — Power supply terminal
113 EXTAL I External clock signal input terminal
114 VSS — Ground
115 XTAL O Crystal signal output terminal
116 VCC — Power supply terminal
117, 118 MD2, MD3 I Mode setting input terminal
119 FWE I Flash write enable signal input terminal
120 NMI I Nonmaskable interruption signal input terminal
121 XRES I Power on reset signal input terminal
122 VSS — Ground
123 CKIO I/O System clock signal input/output terminal Not used. (Open)
124 VCC — Power supply terminal
125 XHSTBY I Hardware standby signal input terminal
126 XWDTOVF O Watch dog timer over flow signal output terminal Not used. (Open)
127, 128 MD4, MD5 I Mode setting input terminal
129 PLLVSS I PLL ground
130, 131 PLLCAP1, 2 I PLL capacitor input terminal
132 PLLVCC I PLL power supply terminal
133 RXD2 ST_DO I ST Receive data signal input terminal RXD2: Not used.
134 VSS — Ground