4. Troubleshooting
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T/R Switch (U601)
Test point part
Function
Typical value
Description
U601, pin1
D_RX
DCS RX
U601, pin2
VC3
2.8V
PCS RX control signal
U601, pin3
P_RX
PCS RX
U601, pin4
VC2
2.8V
DCS, PCS TX control signal
U601, pin5
D_TX
DCS PCS TX
U601, pin7
G_TX
GSM TX
U601, pin9
ANT
Antenna port
U601, pin10
VC1
2.8V
EGSM TX control signal
U601, pin11
G_RX
GSM RX
Содержание KG200
Страница 3: ... 4 ...
Страница 11: ...2 Software Download Procedure 12 Select default folder Press Install ...
Страница 12: ...2 Software Download Procedure 13 Press Finish Enable Leo Download tool ...
Страница 43: ...4 Troubleshooting 44 RF transceiver U602 RX Path TX Path ...
Страница 48: ...4 Troubleshooting 49 U600 PA U602 U601 T R J601 U603 J601 ...
Страница 52: ...4 Troubleshooting 53 U400 U100 ...
Страница 54: ...5 Circuit Diagrams 55 SYSTEM BLOCK DIAGRAM 5 Circuit Diagrams ...
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Страница 70: ... 71 6 PCB LAYOUT ...
Страница 71: ... 72 6 PCB LAYOUT ...
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Страница 78: ...Note ...
Страница 79: ...Note ...