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Sharp SGH-I600 User Manual

Page 97

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Flow Chart of Troubleshooting

9-46

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9-15. WCDMA 2100 Receiver

R X O N

R F Input : C enter C H Freq

A m plitude : -50dB m

L800>=-60dBm

C heck & R esoldering U 701

(A SM )

L805>=-65dBm

E N D

Y es

N o

Y es

Y es

C heck & R esoldering F 801

(D uplexer)

N o

C 831>=-60dBm

Yes

C heck & R esoldering U 802

(LN A )

N o

C 828>=-60dBm

Yes

C heck & R esoldering F 802

(W C D M A R x S A W Filter)

N o

C heck & R esoldering U 802

(W C D M A R eceiver-R FR 6250 )

Y es