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Flow Chart of Troubleshooting
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9-21
9-14. DCS Transmitter
VCO100 pin7
≥ 2.5V
Cheak PMIC
TX ON (0 Level)
VCO100 pin5 ≥
2dBm
PAM100 pin15
≥ 15dBm
U100 pin 22 ≥
20dBm
Resolder VCO100
Resolder PAM100
Yes
No
No
No
Yes
Yes
Yes
No
Yes
END
Check UCP300(MSM)
Replace U100(ASM)
Summary of Contents for SGH-Z400
Page 32: ...8 PCB Diagrams 8 1 Top ...
Page 33: ...PCB Diagrams 8 2 Bottom ...