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GPRS GSM TELEPHONE SGH-Q105 SERVICE Manual GPRS GSM TELEPHONE CONTENTS 1. Electrical Parts List 2. Exploded Views and Parts List 3. Block Diagrams 4. PCB Diagrams 5. Flow Chart of Troubleshooting and Circuit Diagrams D E F A B C...
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Level SEC Code Design LOC DESCRIPTIONS GH92-00976A - PBA MAIN-SGHQ105;SGH-Q105, LA, US A, -, -, -, -, -, - 3002-001103 AU501 BUZZER-MAGNETIC;93dB, 3.6 V, 90 m A, 2, 550Hz, BK 2404-001134 C1001, C1002, C1003 C-T A, CHIP;100 uF, 20 %, 6.3 V, LZ, TP, 4028 2203-001239 C1005, C1015, C1023 C-CERAMIC, CHIP;0.082 nF, 5 %, 50 V, NP0, TP, 1005...
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R-CHIP;150 kohm, 5 %, 1/16 W, D A, TP, 1005 2007-000140 R326, R328, R330, R334 R-CHIP;1 kohm, 5 %, 1/16 W, D A, TP, 1005 2007-007771 R332, R409, R410, R510 R-CHIP;0 ohm, 5 %, 1/16 W, D A, TP, 1005 SAMSUNG Proprietary-Contents may change without notice...
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R-CHIP;6.8 kohm, 5 %, 1/16 W, D A, TP, 1005 2007-000172 R927, R930, R941, R945 R-CHIP;10 ohm, 5 %, 1/16 W, D A, TP, 1005 2703-001733 R933 INDUCTOR-SMD;8.2 nH, 5 %, 1 x 0.5 x 0.5 mm SAMSUNG Proprietary-Contents may change without notice...
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VARISTOR;5.6 V, 20 A, 1 x 0.5 x 0.6 mm, TP 1405-001082 ZD402, ZD403, ZD404 VARISTOR;5.6 V, 20 A, 1 x 0.5 x 0.6 mm, TP 1405-001082 ZD405 VARISTOR;5.6 V, 20 A, 1 x 0.5 x 0.6 mm, TP SAMSUNG Proprietary-Contents may change without notice...
2. SGH-Q105 Exploded View and its Parts List 2-1. Cellular phone Exploded View 14-1 SAMSUNG Proprietary-Contents may change without notice...
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SGH-Q105 Exploded view and its Part List 2-2. Cellular phone Parts List (Sliver) DESCRIPTION SEC.CODE REMARK FRONT COVER ASS’Y GH75-01309A FRONT PIECE GH72-01195B LCD WINDOW GH72-01201A FLIP COVER (NO BADGE) GH72-01199E SIDE KEY ASS’Y GH75-00640A KEY PAD GH72-01494B BUZZER HOLDER...
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SGH-Q105 Exploded view and its Part List 2-3. Test Jig (GH80-00325A) Data Cable SWITCH MODE POWER DEBUG DEBUG HIGH CONNECT HIGH CONNECT 2-4. Test Cable (GH39-00061A) SAMSUNG Proprietary-Contents may change without notice...
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3. SGH-Q105 Block Diagrams 3-1. RF Solution Block Diagram SAMSUNG Proprietary-Contents may change without notice...
5.SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagrams 5-1. Power ON ‘POWER ON’ does not work Check the current Download again consumption more than 100 mA Check the Battery Voltage more Charge the Battery than 3.3V Check the pin Check U101 and C112 4 of U101 is more than 2.85 V...
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SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-2. Initial Initial Failure Check the signal at the pin 17 of Check U101, U201 U101 is “High” when the phone is boot on Check the pin 18 Check the U701 of U101 is “High”...
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-3. Sim Part Phone can’t access SIM card Check the pin 1 of CN801. Check the circuit related to U802 voltage 2.8V ? Check the SIM connector’s (CN801) Resolder or change CN801...
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-4. Charging Part Abnormal charging part Check the pin 14, 15 of CN301 Replace TA is around 3V Resolder Q201, U201, C203, R203 Check the pin 1 of Q201 Check the U601 is “Low”...
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-5. Microphone Part Microphone does not work Resolder or change CN201 check the connection or change LCD-Keypad PCB from CN201 Check the reference voltage on mic path Resolder or change C410 2.5 V...
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-6. Speaker Part Speaker does not work Check the soldered Change LCD-Keypad PCB status of CN201 Check the soldered status of ear Resolder or change CN401 jack connector CN401 Resolder or change...
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-7. Key Data Input Check initial operation Check the connection between CN201 and LCD-Key PCB When one of the keys is Check the U601 pushed, one of pin [11:15] of CN201 is “High”?
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-8. Ring Indicator Ring Indicator does not work Check the connection between CN201 and LCD-Keypad PCB Check the LED601 Check U601 cathode is “High” Check the voltage of LED601 Anode is Resolder or change LED601...
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-9. Back Light Backlight does not work Check the soldered Replace LCD-Keypad PCB or resolder status of EL pad Backlight Select backlight “ON” mode “ON” mode in the menu ? Resolder or change Q301, R308 Q301 pin 1 = “High”...
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-10. Alert Tone Abnormal Alert tone Alert tone on by pushing the key #0289# Is there alert wave signal on the Resolder or replace R508 R508 during alert tone test? Is there...
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-11. GSM Receiver RX On •All or RF values by dBm should be measured in max hold status of RF input : 62 CH RF spectrum analyzer in active call Amp. : -60 dBm...
SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram 5-13. PCS Receiver RX On •All or RF values by dBm should be measured in max hold status of RF input : 660 CH RF spectrum analyzer in active call Amp. : -60 dBm...
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5-15. Power Circuit Diagram Power IC Engineer COMPANY NAME Drawn by R&D CHK Size TITLE: POWER DOC CTRL CHK SGH-Q105 POWER MFG ENGR CHK Changed by Date Changed Time Changed QA CHK Drawing Number Sheet SAMSUNG Proprietary-Contents may change without notice 5-15...
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Drawn by City R&D CHK Size TITLE: B D-TO-B D CONNECTOR SGH-Q105 DOC CTRL CHK B D-TO-B D CONNECTOR+CHARGER MFG ENGR CHK Changed by Date Changed Time Changed QA CHK Drawing Number Sheet SAMSUNG Proprietary-Contents may change without notice 5-16...
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5-17. EL & I/F Connector Circuit Diagram I/F CONNECTOR Engineer COMPANY NAME Drawn by R&D CHK Size TITLE: SGH-Q105 DOC CTRL CHK I/F CONNECTOR+EL MFG ENGR CHK Changed by Date Changed Time Changed QA CHK Drawing Number Sheet SAMSUNG Proprietary-Contents may change without notice 5-17...
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5-18. Audio Circuit Diagram Engineer COMPANY NAME Drawn by AUDIO R&D CHK Size TITLE: DOC CTRL CHK SGH-Q105 AUDIO MFG ENGR CHK Changed by Date Changed Time Changed QA CHK Drawing Number Sheet SAMSUNG Proprietary-Contents may change without notice 5-18...
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5-19. Motor & Buzzer & Memory Circuit Diagram MEMORY MOTOR Engineer COMPANY NAME BUZZER Drawn by R&D CHK Size TITLE: SGH-Q105 DOC CTRL CHK MEMORY+BUZZER+MOTOR MFG ENGR CHK Changed by Date Changed Time Changed QA CHK Drawing Number Sheet SAMSUNG Proprietary-Contents may change without notice 5-19...
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SGH-Q105 Circuit diagrams 5-20. Logic Circuit Diagram Engineer COMPANY NAME Drawn by R&D CHK Size TITLE: DOC CTRL CHK SGH-Q105 Logic MFG ENGR CHK Changed by Date Changed Time Changed QA CHK Drawing Number Sheet SAMSUNG Proprietary-Contents may change without notice 5-20...
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5-21. X-TAL(13 MHz) & SIM Circuit Diagram X-TAL(13MHz) Engineer COMPANY NAME Drawn by R&D CHK Size TITLE: SGH-Q105 DOC CTRL CHK X-TAL(13MHz)+SIM MFG ENGR CHK Changed by Date Changed Time Changed QA CHK Drawing Number Sheet SAMSUNG Proprietary-Contents may change without notice 5-21...
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DOC CTRL CHK SGH-Q105 RF IC MFG ENGR CHK MFG ENGR CHK Changed by Changed by Date Changed Date Changed Time Changed Time Changed QA CHK QA CHK Drawing Number Drawing Number Sheet Sheet SAMSUNG Proprietary-Contents may change without notice 5-22...
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Engineer COMPANY NAME Drawn by R&D CHK Size TITLE: TRANSMITTER & RECEIVER SGH-Q105 DOC CTRL CHK TRANSMITTER & RECEIVER MFG ENGR CHK Changed by Date Changed Time Changed QA CHK Drawing Number Sheet SAMSUNG Proprietary-Contents may change without notice 5-23...
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