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Flow Chart of Troubleshooting
9-46
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9-17. WCDMA 2100 Transmitter
YES
NO
YES
NO
NO
YES
YES
NO
YES
NO
NO
YES
NO
YES
YES
NO
Resolder RFS100,
L100, L101, C103, C109
F100 pin 11 >=
10dBm
Check R103, R105,
R109, UCP200
Check F100 truth table
Pin 5 :
LOW
Pin 4,6 : HIGH
F100 pin 9 >= 8
dBm
Resolder or
Change F100
Resolder or Change
F107, L122, L123, L125,
C173
F107
pin 1 >=
5 dBm
Check UCP 200
PAM101 pin8 >=
- 15dBm
PAM101 pin8 >=
- 30dBm
Resolder or Change
F105, L124
F105 pin1 >=
- 30dBm
Check U100
& UCP200
Check
PAM101
pin 3 = L
pin 4 = L
pin 5 =H
Check UCP 200
Check VBAT or
Resolder or Change
PAM101
TX ON
Sector PWR =
23dBm
Содержание SGH-I780
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