Toshiba e-studio191f Service Manual page 71

3.7.2. SC PC Board
CN501
SC PCB
Signal Name
Pin No.
CN501-1 AGND
CN501-2 SPKOUT
CN501-3 nWAKE
CN501-4 nSLPKY
CN501-5 nLPOW
CN501-6 BZCLK
CN501-7 nPNLRST
CN501-8 PNLTXD
CN501-9 PNLRXD
CN501-10 +5V
CN501-11 +5VP
CN501-12 GND
Destination
SPAKER (-)
SPAKER (+)
PNL1 PCB
CN230-13
PNL1 PCB
CN230-12
PNL1 PCB
CN230-11
PNL1 PCB
CN230-10
PNL1 PCB
CN230-9
PNL1 PCB
CN230-8
PNL1 PCB
CN230-7
PNL1 PCB
CN230-6
PNL1 PCB
CN230-5
PNL1 PCB
CN230-4
Signal Waveform
0V
+1V (Max)
-1V (Min)
Energy
Saving
Wake UP
+3.3V
PRESSED
RESET
+3.3V
+3.3V
+5V
+5V
0V
71
Function
Ground
Line Signal, Dial Tone,
Ringer, Key Tone
Wake Up Signal
+5V
0V
Energy Saver Key Signal
0V
24V/5V Power Control
+5V
Signal
0V
Buzzer Signal
+5V
0V
PNL Reset Signal
+5V
0V
PNL Transmission Data
Signal
0V
PNL Reception Data
Signal
0V
+5 VDC Power Supply
+5 VDC Power Supply
Ground
DP-1910F