Pcs Tx - Samsung SGH-Z650i Service Manual

Flow Chart of Troubleshooting
9-2-5. DCS/PCS TX
Tx ON
(Level : 0)
battery voltage : 3.8V
U600 Check
Pin#40 ≤ 2.3V ?
YES
VCO600 Check
Pin #5 ≒ 6dBm ?
YES
PAM700 Check
Pin #18 ≥ 27dBm ?
YES
DUF800 Check
Pin #6 ≥ 27dBm?
YES
RFS800 Check
Pin#3 ≥ 27dBm?
YES
THE END
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SAMSUNG Proprietary-Contents may change without notice
Check the U600
VCO600 Resolder
Change or
Check the path of VCO600 & PAM700
Resolder DUF800 or Change or
Check the path of DUF800 & PAM700
Check the RFS800
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