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Flow Chart of Troubleshooting
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9-27
9-15. DCS Receiver
U101pin11,12,16,17,
29,32,33,36 ≥2.8V
pin 10≥1.8V
F100 Pin13
≥ -65dBm
Resolder CN100,C101,L104
END
No
Yes
RX ON
Cell Power : -60dBm
F100 3,4
≥ -68dBm
U101 pin 4,5,6,7
≥ 0.2Vp_p
U101
pin 22 ≥ -70dBm
pin 23 ≥ -70dBm
Check ANT Switch
control circuit
Resolder F100
Resolder C102, C103, L105
Check & Resolder
C121,C124,C126
And PMU Part
Resolder U101
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Check U200
Check F100
pin9,pin11 = L
Содержание SGH E590 - Cell Phone 70 MB
Страница 36: ...8 PCB Diagrams 8 1 Top ...
Страница 37: ...PCB Diagrams 8 2 Bottom ...