LG KG195 Service Manual page 32

11 SIMCLK
12 SIMVCC
13 SIMSEL
14 SIO
15 SRST
16 SCLK
17,21,46 DGND
18 VM
19 VBAT
20 VIO
22 VRTC
23 RSTCAP
24 /RESET
25 VTCXO
26 AVBAT
27 VA
28 AGND
30 VREF
31 SRCLKEN
32 PWRKEY
33 PWRBB
34 VIBRATOREN
35 ALERTEREN
36 LEDEN LED
37,40 PGND
38 VIBRATOR
39 ALERTER
41 LED
42 BATUSE
43 BATDET
44 V ASEL
45 VMSEL
47 VBAT
48 VCORE
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Non-Level-Shifted SIM Clock Input
SIM Enable
High for Vsim=3.0V, Low for Vsim=1.8V
Level-Shifted SIM Bidirectional Data Input/Output
Level-Shifted SIM Reset Output
Level-Shifted SIM Clock Output
Digital Ground
Memory Supply
Battery Input Voltage
Digital IO Supply
Real Time Clock Supply
Reset Delay Time Capacitance
System Reset, Low Active
TCXO Supply
Battery Input Voltage for Analog Block Circuits
Analog Supply
Analog Ground
Reference Voltage Output
VTCXO and VA Enable
Power on/off Key, Internal Pull High to VBAT
Power on/off Signal from Microprocessor
Vibrator Driver Enable, Internal Pull Low to DGND
Alerter Driver Enable, Internal Pull Low to DGND
Driver Enable, Internal Pull Low to DGND
Power Ground
Vibrator Driver Input
Alerter Driver Input
LED Driver Input
Battery Type Selection, High for NiMH, Low for Li-ion, Internal Pull Low to DGND
Battery Detect Input, Low for Battery Connected, Internal Pull High for Battery
Disconnected
High for VA enabled with VTCXO, Low for VA enabled with VD, Internal Pull
Low to DGND
High for Vm=2.8 V, Low for Vm=1.8V, Internal Pull High to VIO
Battery Input Voltage
Digital Core Supply
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4. Circuit Description
LGE Internal Use Only