Rfr3300 - Motorola T720 Service Manual

M
Troubleshooting............................................ 61
Introduction.................................................. 61
Troubleshooting and Repair.....................................
Testing after Repair........................................ 61
No turn on debug procedure............................. 62
Internal charger test debugging.........................
Transmitter Troubleshooting................................................
T720 Troubleshooting.................................... 67
Blco Diagram.................................................68
Antenna.......................................................69
Duplexer....................................................... 7 1
Power Detector.............................................. 72
RFR3300........................................................ 7 4
Amps IF Filter............................................... 77
GPS IF.......................................................... 7 8
CDMA IF Filter..............................................79
IFR3300......................................................... 81
Up Mixer (RFT3100)........................................ 84
1900 TX Filter & PA......................................... 87
800 TX Filter & PA..........................................89
TCXO...................................................... 91
VCO Syn.................................................
MSM (5100)................................................... 94
PM.............................................................. 9 7
CE BUS........................................................ 1 00
Harness........................................................101
Batt Charging................................................103
Audio Interface.............................................. 106
Memory...................................................
Connectors..............................................
Replacement Parts........................................... 111
Mechanical Explored Diagram.......................................... 11011
Mechanical Parts list........................................ 112
Electrical Parts list.......................................... 113
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