Kyocera 255b, Service Manual

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2K3/2L3
2-3-20
Connector Pin Signal I/O Voltage Description
YC1 1 5V2 I 5 V DC 5 V DC power intput from MPWB
Connected to
main PWB 2 5V2 I 5 V DC 5 V DC power input from MPWB
3 GND - - Ground
4 GND - - Ground
YC2 1 VBUS I 5 V DC 5 V DC power input
Connected to
main PWB 2 DN I/O LVDS USB data signal
3 DP I/O LVDS USB data signal
4 ID - - Not used
5 GND - - Ground
YC3 1 GND - - Ground
Connected to
main PWB 2 SECOND_TR
AY_S I 0/3.3 V DC JEPS: On/Off
3 BEEP_POWE
RON I 0/3.3 V DC Sleep return signal 0
4 ENERGY_SA
VE I 0/3.3 V DC Energy save signal
5 SUSPEND_P
ower I 3.3V DC 3.3 V DC power input from MPWB
6 LED_MEMOR
Y I 0/3.3 V DC Memory LED control signal
7 LED_ATTENT
ION I 0/3.3 V DC Attention LED control signal
8 LED_PROCE
SSING I 0/3.3 V DC Processing LED control signal
9 SHUTDOWN I 0/3.3 V DC 24 V down signal
10 LIGHTOFF_P
OWER I 0/3.3 V DC Sleep return signal 1
11 AUDIO I Analog Voice output signal
12 PANEL_RESE
T I 0/3.3 V DC Reset signal
13 INT_POWER
KEY O 0/3.3 V DC Power key: On/Off
14 PANEL_STAT
US O 0/3.3 V DC Operation panel status signal
15 GND - - Ground