TROUBLESHOOTING: RX Analysis Test
RX Analysis Test (Continued)
Is the tone to the
injected frequency offset
aprox. 500 mVp-p
+10%?
Check C781, R660, C217, C219, C222, C224,
C228, C229, C230, C231, C303, C501, C676,
C677, E601 for S, US, MP, DFP.
Check DC section, then if no fault
found replace Sledgehammer IC (U600).
Are voltages
1.4 V
+10%?
Check the voltage on
TP_LNA_EN.
Yes
No
Abbreviations:
US = Unsoldered components or connections
MP = Missing parts
DFP = Defective parts
Continued
on next
page
Yes
Pass
No
A
Measure AC voltages on TP_RXI,
TP_RXIX, TP_RXQ, TP_RXQX.
B
Is voltage
2.775 V
+5%?
Continued
on next
page
C
Yes
Check C781, R660, C217, C219,
C222, C224, C228, C229, C230,
C231, C303, C501, C676, C677,
E601 for S, US, MP, DFP.
Check DC section, then if no
fault
found replace Sledgehammer
IC (U600).
No
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