SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-48
This Document can not be used without Samsung's authorization
9-2-6. Abnormal EGSM Rx Operation
PIN28
PIN27
PIN1
U202 PIN8
≥ -60dBm
U202 PIN4
≥ -70dBm
Resolder RFS200,
L203,C236,L219
U202 PIN3,4
≥ -75dBm
Check U202
PIN28=H, PIN27=L
PIN1=H
Resolder or Change
F202,C264,L206
Check Antenna
Switch Control
Resolder or Change
U202
YES
YES
YES
YES
NO
NO
NO
RX ON
AMP--50dBm
Check U201,
UCP400
END
U201 PIN48,
49 ≥ -75dBm
NO
Resolder or Change
C263,C265,L208
YES
Содержание SGH-i560V
Страница 41: ...7 Block Diagrams 7 1 7 1 Main Block Diagram ...
Страница 42: ...Block Diagrams 7 2 7 2 RF Solution Block Diagram ...
Страница 43: ...8 PCB Diagrams 8 1 Main top view ...
Страница 44: ...PCB Diagrams 8 2 Main bottom view ...