4. Troubleshooting
- 47 -
PA module (U600)
Test point part
Function
Typical value
Description
U600, pin1
DPCS_IN
DCS PCS RF input
U600, pin2
BS
2.8V
Band select logic input
U600, pin3
TXEN
2.8V
TX enable logic input
U600, pin4
VBAT
3.8V(3.4~4.2V)
Battery supply connection
U600, pin5
CEXT
by pass
U600, pin6
VRAMP
Analog signal used to control the output power
U600, pin7
EGSM_IN
EGSM RF input
U600, pin10
EGSM_OUT
EGSM RF output
U600, pin16
DPCS_OUT
DCS PCS RF output
Summary of Contents for KG200
Page 3: ... 4 ...
Page 11: ...2 Software Download Procedure 12 Select default folder Press Install ...
Page 12: ...2 Software Download Procedure 13 Press Finish Enable Leo Download tool ...
Page 43: ...4 Troubleshooting 44 RF transceiver U602 RX Path TX Path ...
Page 48: ...4 Troubleshooting 49 U600 PA U602 U601 T R J601 U603 J601 ...
Page 52: ...4 Troubleshooting 53 U400 U100 ...
Page 54: ...5 Circuit Diagrams 55 SYSTEM BLOCK DIAGRAM 5 Circuit Diagrams ...
Page 63: ... 64 ...
Page 70: ... 71 6 PCB LAYOUT ...
Page 71: ... 72 6 PCB LAYOUT ...
Page 73: ... 74 ...
Page 78: ...Note ...
Page 79: ...Note ...