Samsung i640 Service Manual - Page 85
ÁÅ. ÆÄS Receiver
View all Samsung i640 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 85 highlights
Flow Chart of Troubleshooting 9-12. PCS Receiver RX ON Sector Power = -50dBm No U100 pin11 >=-60dBm Yes U100 pin21,22 No >=-70 dBm Resolder RFS100, C104,L100,R100, C105 Check U100 truth table No Yes Pin#6: Low Pin#5: High Pin#4: High Check R106,R109, R118,UCP200 Resolder or Change U100 Yes U101 pin36,37 >=-75 dBm No Resolder or Change L105,L106,L107,C134 Yes Check U101 & UCP200 END 9-41 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization
SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-41
This Document can not be used without Samsung's authorization
9-ÁÅ. ÆÄS Receiver
±X ON
sECto² PowE² = ³50dBm
U100 pIn11
>=³60dBm
U100 pIn21,22
>=³70 dBm
No
YE´
No
µhECk
U100 t²uth
tablE
No
YE´
µhECk U101 & UµP200
¶ND
YE´
U101 pIn36,37
>=³75 dBm
YE´
±E´oldE² o² µhangE
L105,L106,L107,µ134
No
Pin#6: Low
Pin#5: High
Pin#4: High
±E´oldE²
±Fs100,
µ104,L100,±100,
µ105
µhECk
±106,±10¸,
±11·,UµP200
±E´oldE² o²
µhangE U100