Flow Chart of Troubleshooting

9-18. PCS Receiver

RX ON

RF input : CH center freq : +67.7kHz

Amp : -50dBm

Yes

C105

No

>= -65dBmResolder RFS100,C105,L103

 

Yes

No

 

L107

 

>= -68dBm

 

Resolder F100

Yes

No

U100 pinResolder U100

10, 11, 12, 13or

>= 500mVCheck pins related to U100

Yes

Check U100

END

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Image 64
Sharp SGH-J200 manual PCS Receiver