Sharp SGH-F250 manual PCS Transmitter

Page 59

Flow Chart of Troubleshooting

9-17. PCS Transmitter

TX ON (5Level)

Yes

MODULE100 Pin13≥

-65dBm

No

MODULE100 pin8

≥ 25dBm

No

PAM100 pin17

≥ 25dBm

Yes

Resolder

 

 

MODULE100,C102,L102

Yes

 

 

Check MODULE100

No

 

 

 

 

 

 

 

 

pin11 = L (2.6V),

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin9 = H

 

 

 

Yes

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Resolder or Change L113,C109,

 

 

 

 

 

 

C110

 

 

 

 

 

 

 

 

 

 

 

 

Check ANT Switch control circuit

Change or Resolder

MODULE100

No

PAM100 pin1

-4dBm

No

U100 pin

C2,B1,B2,A1

≥ 0.2Vp_p

No

Check UCP200

END

 

 

 

 

 

 

 

 

Yes

Check PAM100 pin

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

2,3,5,6,8, +Vbatt

 

 

 

 

 

Resolder or Change PAM100

 

 

 

 

 

 

 

 

 

 

 

 

 

pin4OK?

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check VBAT or PAM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

control signal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

U100 pin G4,F3,D6,

No

 

Check & Resolder

 

C5,B3,A5,F1

 

 

 

 

 

29,32,33,36 ≥2.8V

 

 

 

C115,C116,C117,C114 And

 

 

 

 

 

 

 

 

 

pin C1 ≥2.9V

 

 

 

PMU Part

 

 

 

 

 

 

Yes

Resolder U100

9-31

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Image 59
Contents GSM Telephone Country Web Site Repair Precaution Safety PrecautionsESDElectrostatically Sensitive Devices Precaution GSM General Specification SpecificationTX Power GSM850 DCS1800 PCS1800 Control level GSM Tx Power ClassMain Function Product FunctionProduct Function RF CABLEGH39-00599A Software AdjustmentsArray course control Test CABLE-1.5MGH39-01022A Test CABLE-0.4MGH39-01020APre-requsite for Downloading Software DownloadingSamsung Proprietary-Contents may change without notice Cellular phone Exploded View Exploded View and Parts ListSEC Code Cellular phone Parts ListQFU01 Assy CASE-SLIDE Upper BAG PE Status Main Electrical Parts List2007-000162 R218 Chip SNA 2203-005050 C403 TA,CHIP CRYSTAL-SMD SOCKET-INTERFACE Samsung Proprietary-Contents may change without notice BaseBand Solution Block Diagram Block DiagramsRF Solution Block Diagram - Main top view PCB Diagrams- Main bottom view Power On Flow Chart of TroubleshootingFlow Chart of Troubleshooting Samsung Proprietary-Contents may change without notice Initial Samsung Proprietary-Contents may change without notice Charging Part Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice Sim Part Samsung Proprietary-Contents may change without notice Microphone Part Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice Spkp & Spkn High Speaker PartMelodySamsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice Key Data Input Back Light for Color Main LCD Key Back Light Camera part Radio part Samsung Proprietary-Contents may change without notice RX on GSM ReceiverDCS Receiver PCS Receiver Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice MODULE100 GSM TransmitterDCS Transmitter PCS Transmitter Samsung Proprietary-Contents may change without notice Bluetooth part Samsung Proprietary-Contents may change without notice Reference Abbreviate Reference data10-2 Disassembly Instructions Disassembly and Assembly InstructionsFpcb Connector Samsung Proprietary-Contents may change without notice Assembly Instructions Hook Samsung Proprietary-Contents may change without notice