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Flow Chart of Troubleshooting
9-48
Check the PIN#4 of F204?
9-15-3. WCDMA 2100 transmitter
Band : WCDMA
CELL POWER : -50dBm
TARGET POWER : 22 dBm
DL Channel : 9750 Ch
TX Power is too Low!!
Check
TCXO CLOCK
19.2MHz @ C272
Re-solder or change
OSC200, C272/C279
NO
YES
Check the Power @
Pin#59 of U202?
Check U202
NO
YES
NO
Re-solder or change F204
YES
Re-solder or change PAM201
NO
Check the Power @Pin#9
of PAM201?
YES
NO
Check the Power @Pin#6
of F203?
Re-solder or change F203
YES
Re-solder or change U101
NO
Check the Power @Pin#2
of U101?
YES
Check RFS100?
Change or re-solder RFS100
NO
YES
Antenna
re-solder or change