8-4-7 BER Failure
BER FAILURE
TEST MODE
CHECK BER
IS LESS THAN 0.001
VCC BIAS IS OK
QUAD CIRCUIT IS OK
Trouble Shooting
BRF7
AT -90dBm
NO
BPF IS OK
YES
YES
YES
OK
YES
NO
CHECK BPF INSERTION LOSS
NO
CHECK C534, C525, C526
NO
CHECK L505, C604, C602 AND D507
OK
8-30
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