Sharp SGH-F250 manual DCS Transmitter

Page 58

Flow Chart of Troubleshooting

9-16. DCS Transmitter

TX ON (5Level)

Yes

①

MODULE100 Pin13≥

-65dBm

No

MODULE100 pin8

≥ 25dBm

Yes

Yes

Resolder

MODULE100,C102,L102

Check MODULE100	No
Check MODULE100
pin11 = L (2.6V),
Pin9 = H

Check ANT Switch control circuit

No

Yes

③

②

Change or Resolder

MODULE100

PAM100 pin17

≥ 25dBm

No

PAM100 pin1

≥ -4dBm

No

U100 pin

C2,B1,B2,A1

≥ 0.2Vp_p

No

Check UCP200

END

Yes

Yes

Yes

Resolder or Change L113,C109,

C110

④

Check PAM100 pin		Yes
Check PAM100 pin		Yes
2,3,5,6,8, +Vbatt							Resolder or Change PAM100
pin4OK?							Resolder or Change PAM100
pin4OK?
	No

							Check VBAT or PAM


							control signal

U100 pin G4,F3,D6,				⑤
U100 pin G4,F3,D6,	No
C5,B3,A5,F1	No			Check & Resolder
29,32,33,36 ≥2.8V				Check & Resolder
				C115,C116,C117,C114 And

pin C1 ≥2.9V
pin C1 ≥2.9V				PMU Part
				PMU Part

⑥

Yes

Resolder U100

9-30

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Image 58

Contents GSM Telephone Country Web Site Safety Precautions Repair PrecautionESDElectrostatically Sensitive Devices Precaution Specification GSM General SpecificationGSM Tx Power Class TX Power GSM850 DCS1800 PCS1800 Control levelProduct Function Main FunctionProduct Function Array course control Software AdjustmentsRF CABLEGH39-00599A Test CABLE-0.4MGH39-01020A Test CABLE-1.5MGH39-01022ASoftware Downloading Pre-requsite for DownloadingSamsung Proprietary-Contents may change without notice Exploded View and Parts List Cellular phone Exploded ViewCellular phone Parts List SEC CodeQFU01 Assy CASE-SLIDE Upper BAG PE Main Electrical Parts List Status2007-000162 R218 Chip SNA 2203-005050 C403 TA,CHIP CRYSTAL-SMD SOCKET-INTERFACE Samsung Proprietary-Contents may change without notice Block Diagrams BaseBand Solution Block DiagramRF Solution Block Diagram PCB Diagrams － Main top view－ Main bottom view Flow Chart of Troubleshooting Power OnFlow 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 Speaker PartMelody Spkp & Spkn HighSamsung 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 GSM Receiver RX onDCS Receiver PCS Receiver Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice GSM Transmitter MODULE100DCS Transmitter PCS Transmitter Samsung Proprietary-Contents may change without notice Bluetooth part Samsung Proprietary-Contents may change without notice Reference data Reference Abbreviate10-2 Disassembly and Assembly Instructions Disassembly InstructionsFpcb Connector Samsung Proprietary-Contents may change without notice Assembly Instructions Hook Samsung Proprietary-Contents may change without notice