Sony Walkman NW-MS6 Service Manual page 32

NW-MS6
Pin No. Pin Name
69 WAKE1
70 WAKE0
71 RXD
72 SDI1
73 BIO
74 VDDIO1
75 VSSIO1
76 XF
77 TXD
78 SDO1
79 SCK1
80 VSSCORE
81 USB CHGON
82 FR XRST
83 DAC XPD
84 LCDON
85 HP PWR
86 HPBBON
87 HPMUTE
88 DAC DEMP
89 ORANGE
90 LED ON
91 EXTON
92 EL ON
93 CHGON
94 USB XDACK
95 USB XINT
96 USB REG CE
97 TSB
98 VSSCORE
99 SPCK
100 XIRQ
101 SCK0
102 SDO0
103 FS4
104 WAKE
105 VDDCORE
106 SDI0
107 SLEEPEN
108 WAKEEN
109 XCRST
110 OSCEN
111 VDDCORE
112 ROM RY/XBY
32
I/O
System hold off signal input from the HOLD switch of console unit
I
The signal input, when switch position is changed from on to off
I
System wake up signal input by any key is pressed
I
Not used (open)
I
Serial data input from the RV5C348A (IC1001)
I
Not used (open)
—
Power supply terminal (+2.8V)
— Ground terminal
O
Not used (open)
O
Not used (open)
O
Serial data output to the RV5C348A (IC1001)
O Serial data transfer clock signal output to the RV5C348A (IC1001)
—
Ground terminal
O
Not used (open)
O
Not used (open)
O Power on/off control signal output to the D/A converter (IC3100)
O
Power on/off control signal output for the liauid crystal display unit "H": LCD on
O
Power on/off control signal output to the headphone amplifier (IC3200)
O
Bass boost on/off control signal output to the headphone amplifier (IC3200)
O Muting on/off control signal output to the headphone amplifier (IC3200)
O
Emphasis control signal output to the D/A converter (IC3100)
O
LED drive signal output for access indicator (LED6000) "H": LED on
O
LED drive signal output terminal Not used (open)
O Not used (open)
Power on/off control signal output for the back light of liquid crystal display unit
O
"H": back light on
O
Not used (open)
O
Not used (open)
O
Not used (open)
O
Not used (open)
I/O
Not used (open)
—
Ground terminal
O
Not used (open)
O
Not used (open)
O
Serial data transfer clock signal output for liquid crystal display drive to the console unit
O
Serial data output for liquid crystal display drive to the console unit
O Clock signal output to the power controller (IC9005)
O
Power wake up request signal output to the power controller (IC9005)
—
Power supply terminal (+1.8V)
O
Serial data output for liquid crystal display drive to the console unit
I Not used (open)
I
Wake up enable signal input from the reset signal generator (IC9003)
System reset signal input from the reset signal generator (IC9007) "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I
OSC enable signal input from the reset signal generator (IC9003)
—
Power supply terminal (+1.8V)
O Ready/busy signal output to the flash memory (IC5000) "L": busy, "H": ready
Description