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Samsung SGH-Q105, Service Manual

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Samsung SGH-Q105 Service Manual Download Page 19

SAMSUNG Proprietary-Contents may change without notice

5-4

SGH-Q105 Flow Chart of Troubleshooting and Circuit Diagram

Abnormal charging part

Y

N

Y

Check

the pin 14, 15 of CN301

is around 3V

Replace TA

N

Y

Check the pin 1 of Q201

is “Low”

Resolder Q201, U201, C203, R203

Check the U601

N

Y

Check the

pin 1 of Q203 is “Low”

Resolder Q203, R207, R206, R208,

Q202, ZD203

N

Y

Check the

pin 5 of U201 is around

2.5 V?

Change U201

END

5-4. Charging Part

Summary of Contents for SGH-Q105

Page 1: ...Q105 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 ABC DEF MNO JKL GHI PQRS Shift Next Space TUV WXYZ C ...

Page 2: ...HIP 0 022 nF 5 50 V NP0 TP 1005 1 2203 000696 C1022 C CERAMIC CHIP 0 002 nF 0 25 pF 50 V NP0 TP 1005 1 2203 000254 C1028 C1030 C111 C CERAMIC CHIP 10 nF 10 16 V X7R TP 1005 1 2203 000278 C1029 C784 C CERAMIC CHIP 0 01 nF 0 5 pF 50 V NP0 TP 1005 1 2203 000425 C1031 C938 C CERAMIC CHIP 0 018 nF 5 50 V NP0 TP 1005 1 2203 005061 C1033 C115 C201 C203 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 1 2203...

Page 3: ...RAMIC CHIP 0 022 nF 5 50 V NP0 TP 1005 1 2203 000254 C615 C704 C709 C710 C CERAMIC CHIP 10 nF 10 16 V X7R TP 1005 1 2203 000233 C620 C621 C701 C702 C CERAMIC CHIP 0 1 nF 5 50 V NP0 TP 1005 1 2203 001405 C622 C CERAMIC CHIP 22 nF 80 20 25 V Y5 V TP 1005 1 2203 000233 C705 C706 C805 C809 C CERAMIC CHIP 0 1 nF 5 50 V NP0 TP 1005 1 2203 000254 C711 C712 C718 C732 C CERAMIC CHIP 10 nF 10 16 V X7R TP 10...

Page 4: ... CHIP 1 nF 10 50 V X7R TP 1005 1 3710 001492 CN201 CONNECTOR SOCKET 40P 2R 0 5 mm SMD S AUF 1 3710 001755 CN301 CONNECTOR SOCKET 18P 1R 0 5 mm SMD A AUF 1 3722 001380 CN401 JACK PHONE 6P 2 6PI AG BLK 1 3710 001105 CN501 CONNECTOR SOCKET 2P 1R 1 27 mm SMD S AU 1 3711 004621 CN601 CONNECTOR HEADER BOX 14P 2R 0 5 mm SMD S AUF 1 3709 001121 CN801 CONNECTOR CARD EDGE 6P 2 54 mm SMD S AU 1 0401 001033 D...

Page 5: ...4 x 1 02 mm 1 2703 001726 L911 INDUCTOR SMD 27 nH 5 1 x 0 5 x 0 5 mm 1 2703 001724 L912 INDUCTOR SMD 1 2 nH 0 3 nH 1 0 x 0 5 x 0 5 mm 1 2703 001514 L913 INDUCTOR SMD 68 nH 5 1 8 x 1 12 x 1 02 mm 1 2703 001441 L914 INDUCTOR SMD 5 6 nH 0 3 nH 1 6 x 0 8 x 0 8 mm 1 2703 001422 L916 L918 INDUCTOR SMD 22 nH 5 1 6 x 0 8 x 0 8 mm 1 0601 001094 LED601 LED CHIP Y GRN 0 8 x 1 1 mm 570 nm 1 4302 001081 M101 B...

Page 6: ...A TP 1005 1 2007 001319 R103 R939 R CHIP 1 2 kohm 5 1 16 W D A TP 1005 1 2007 000172 R107 R507 R613 R734 R CHIP 10 ohm 5 1 16 W D A TP 1005 1 2007 000157 R108 R109 R212 R213 R CHIP 47 kohm 5 1 16 W D A TP 1005 1 2007 007107 R201 R203 R CHIP 100 kohm 1 1 16 W D A TP 1005 1 2007 007791 R202 R CHIP 9 1 kohm 1 1 16 W D A TP 1005 1 2007 007308 R205 R209 R CHIP 33 kohm 1 1 16 W D A TP 1005 1 2007 007309...

Page 7: ...007 000148 R714 R810 R CHIP 10 kohm 5 1 16 W D A TP 1005 1 2007 007698 R728 R729 R730 R731 R CHIP 5 1 kohm 1 1 16 W D A TP 1005 1 2007 007698 R732 R733 R CHIP 5 1 kohm 1 1 16 W D A TP 1005 1 2007 000172 R801 R802 R902 R903 R CHIP 10 ohm 5 1 16 W D A TP 1005 1 2007 000151 R804 R CHIP 15 kohm 5 1 16 W D A TP 1005 1 2007 000174 R805 R911 R943 R CHIP 47 ohm 5 1 16 W D A TP 1005 1 2007 007771 R806 R809...

Page 8: ...IC BATTERY 1510 SSOP 16P 150MIL PLASTIC 3 1 1003 001226 U302 IC POWER DRIVER D361 A SOP 8P 120MIL SINGLE 90 m A TP 1 1001 001088 U401 IC ANALOG SWITCH MAX4544EUT T SOT 23 6P SINGLE 1 0504 001071 U402 TR DIGITAL UMD9N NPN PNP 150 mW 4 7 UMT6 TP 1 1106 001301 U501 IC SRAM 1337 262K x 16Bit CSP 72P 85nS 3 V PLASTI 1 0504 001042 U502 U802 TR DIGITAL BCR10PN NPN PNP 250 mW 10K 10K 1 GH09 00017A U601 IC...

Page 9: ...SAMSUNG Proprietary Contents may change without notice 2 1 2 SGH Q105 Exploded View and its Parts List 2 1 Cellular phone Exploded View 1 1 1 2 1 4 1 3 16 17 7 2 15 14 1 10 8 9 12 13 3 4 5 11 6 1 14 ...

Page 10: ...NA MOTOR REAR COVER ASS Y EAR JACK COVER DECORATION SCREW M2 L6 x 4EA BATTERY GH75 01309A GH72 01195B GH72 01201A GH72 01199E GH75 00640A GH72 01494B GH73 00348A 3002 001103 3001 001214 GH96 00924A GH73 00347A GH92 00976A 3003 001034 GH73 00350B GH72 02511A GH42 00134A GH96 00855A GH75 01307A GH73 00349B GH72 01206A 6001 001046 GH43 00404A 900 mAh SA SNA SNA SA SNA SA SA SA SA SA SA SA SA SA SA SA...

Page 11: ...325A P O W E R O N D S P J T A G P O W E R 4 2 V S D S S W D E B U G S W D E B U G T E S T P A C K S D S D L E L E C T R O N I C S G P R S T E S T J I G G H 8 0 0 0 3 2 5 A 2 4 Test Cable GH39 00061A SWITCH MODE POWER SDS DEBUG SDS DEBUG ON S W S W D L D L HIGH LOW LOW CONNECT N C CAL HIGH LOW LOW CONNECT N C Data Cable ...

Page 12: ...M TX VCO RF FILTER FEM LNA LNA RX SAW RX SAW RF VCO GSM 1160 MHz 1185 MHz PCS RX 1705 MHz 1765 MHz TX 1715 MHz 1775 MHz RF SYNTH IF SYNTH MIXER 1 IF VCO 1080 MHz 1 2 1 6 1 2 IF SAW 225 MHz MIXER 2 LC FILTER 45 MHz PGA I Q DEMOD SERIAL DATA INTERFACE 270 MHz SWITCH PCS 270 MHz GSM 540 MHz 1 2 1 2 GSM 270 MHz PCS 135 MHz I Q MODULATOR PD LOOP FILTER GSM 270 MHz PCS 135 MHz UI AUDIO SERIAL DATA CLK L...

Page 13: ...2 x 1 DAI Audio LCD Keypad B D B D con Memory Part CSP1099 ACC PPI Programmable Peripheral I O SMART CARD RTC JTAG ICE DSP16000 ARM7TDMI EMI IO RWN AB 8 0 DB 15 0 INT1 IRQx PAx RSTB DSPJTAG LCD KEYBOARD TXIP TXIN TXQP TXQN RXIP RXIN RXQP RXQN SERCK SERLE SERDA RFOVL TXP OCTL RF SOLUTION RF IC PAM MAIN VCO TX VCO IF VCO IO RWN AB 8 0 DB 15 0 INT1 IRQx PAx RSTB RF DIRVER TX I Q RX I Q TXP SERCK SERL...

Page 14: ...L 1 0 1 L201 L202 L514 L904 L909 L 9 1 0 L911 L912 L 9 1 4 L 9 1 6 L 9 1 8 L919 LED601 M101 OSC901 Q1001 Q1002 Q1003 Q101 Q 1 0 2 Q 1 1 4 Q 2 0 1 Q202 Q203 Q205 Q301 Q501 Q502 Q503 R1001 R1002 R1003 R101 R1016 R1017 R1018 R102 R1021 R1022 R1023 R1024 R103 R107 R108 R109 R110 R115 R116 R117 R118 R201 R202 R203 R204 R205 R206 R207 R208 R209 R222 R223 R308 R312 R313 R401 R403 R404 R405 R406 R407 R408...

Page 15: ...971 C972 C973 C974 C975 C976 C977 C978 CN201 CN301 CN401CN501 CN801 COAX_CABLE2 COAX_CABLE301 D202 D203 D204 D205 D206 DAICK DAIDI DAIDO DAIRN F1001 F1002 F1003 F1004 F902 L1001 L1002 L1004 L1005 L1006 L1007 L1008 L1009 L302 L303 L304 L902 L907 L 9 1 3 OSC601 OSC801 OSC902 OSC903 Q204 Q302 R1004 R1005 R1006 R1008 R1009 R1010 R1011 R1012 R1013 R1014 R1015 R1019 R1020 R210 R211 R212 R213 R214 R215 R...

Page 16: ...mA Download again N Y Check the Battery Voltage more than 3 3V Charge the Battery N Y Check the pin 4 of U101 is more than 2 85 V Check U101 and C112 N Y U101 pin 31 35 36 3 0V N U101 pin 1 1 8V N Y END Y Check the clock signal at pin4 of U801 Freq 13MHz Vrms 500mV Vpp is around 1 5 Vpp Check the clock generation circuit related to OSC801 and U801 Check the initial operation Check U101 and C103 C1...

Page 17: ... Check the U701 N Y Check the pin 4 of OSC801 is around 3 0V Check the soldered status of OSC801 R801 U101 N Check the soldered status of OSC801 U801 Y END Y Check LCD connector CN201 and resolder bridge SAMSUNG Proprietary Contents may change without notice 5 2 SGH Q105 Flow Chart of Troubleshooting and Circuit Diagram Check the pin 4 of U801 is around 3 0V ...

Page 18: ... Check the pin 1 of CN801 voltage 2 8V Check the circuit related to U802 N Y Check the SIM connector s CN801 Connection to SIM card Resolder or change CN801 N Check U801 soldered status and the related circuit of U101 N Check the soldered status of components R810 R812 R813 R814 END Y Check the voltageof pin4 of U802 2 8 V Y Is there any data to the pin6 of CN801 ...

Page 19: ...am Abnormal charging part Y N Y Check the pin 14 15 of CN301 is around 3V Replace TA N Y Check the pin 1 of Q201 is Low Resolder Q201 U201 C203 R203 Check the U601 N Y Check the pin 1 of Q203 is Low Resolder Q203 R207 R206 R208 Q202 ZD203 N Y Check the pin 5 of U201 is around 2 5 V Change U201 END 5 4 Charging Part ...

Page 20: ... and Circuit Diagram 5 5 Microphone Part Microphone does not work Y N Y check the connection from CN201 Resolder or change CN201 or change LCD Keypad PCB Y N Check audio switch U401 circuitry Change U401 N Check the reference voltage on mic path C410 2 5 V Resolder or change R427 R410 R407 C404 R403 R405 ...

Page 21: ... Speaker does not work Y N Y Check the soldered status of ear jack connector CN401 Resolder or change CN401 N Y Check the soldered status of CN201 Change LCD Keypad PCB N Y Check soldered status around CN401 Resolder or change C422 ZD403 ZD404 C421 ZD402 N Y Is Speaker working Replace the Speaker END 5 6 Speaker Part ...

Page 22: ...rcuit Diagram 5 7 Key Data Input Check initial operation Y Y N Y When one of the keys is pushed one of pin 11 15 of CN201 is High Check the U601 N Y When one of the keys is pushed one of pin 6 10 of CN201 is High Resloder CN201 or replace the key PCB END Check the connection between CN201 and LCD Key PCB ...

Page 23: ...oubleshooting and Circuit Diagram 5 8 Ring Indicator Ring Indicator does not work Y Y N Y Check the LED601 cathode is High Check U601 N Y Check the voltage of LED601 Anode is lower than that of Cathode Resolder or change LED601 END Check the connection between CN201 and LCD Keypad PCB ...

Page 24: ...ight Backlight does not work N Y Backlight ON mode in the menu Select backlight ON mode N Y Check the soldered status of EL pad Replace LCD Keypad PCB or resolder N Y Q301 pin 1 High Resolder or change Q301 R308 N Y Check the connection from CN201 to LCD Module Replace LCD Keypad PCB N Y LCD backlight on Replace LCD Keypad PCB END ...

Page 25: ...there alert wave signal on the Q502 pin3 during alert tone test Check the circuit related to Q502 N Y Check the C506 3 3V Resolder D502 and C506 N Y Buzzer is ok Change the Buzzer END SAMSUNG Proprietary Contents may change without notice 5 10 SGH Q105 Flow Chart of Troubleshooting and Circuit Diagram Alert tone on by pushing the key 0289 ...

Page 26: ...lder or Change U901 Y F1004 pin 5 73 dBm Resolder F1004 N Y F902 pin 5 6 60 dBm Change F902 Y U901 pin 43 44 50 dBm N Y U1006 Pin 9 70 dBm N Y Resolder U1006 Pin 5 70 dBm Check voltage U1006 pins Pin 2 L Pin 4 H Pin 8 H Pin 10 L Y U901 pin 4 55 dBm 2 5Vdc Y Resolder or Change U901 END N Y F901 pin 4 60 dBm Resolder or Change F901 N Y F902 pin 1 2 55 dBm Check OSC901 pin 1 20 dBm Change OSC901 N Al...

Page 27: ...5pcl N U1006 9 pin 33 dBm N Change U1005 Change U1004 N Y U1006 2 8 pin High 4 10 pin Low U1005 2 pin High N N U1004 2pin Low U703 5pin Low 3pin Low N Y Change U1006 OSC903 3 pin 0 8 V 2 5 V N Y Change OSC903 U901 17 18 19 20 pin like left N Y Change Resister R701 R702 R711 R712 like left Change U1004 Change U703 Y Y N U1004 3pin Low Change U1008 1 7 V 0 8 V 1 25 V ...

Page 28: ...older or Change U901 Y F1004 pin 5 73 dBm Resolder F1004 N Y F902 pin 5 6 60 dBm Change F902 Y U901 pin 43 44 50 dBm N Y U1006 Pin 7 70 dBm N Y Resolder U1006 Pin 7 70 dBm Check voltage U1006 pins Pin 2 L Pin 4 H Pin 8 H Pin 10 L Y U901 pin 8 55 dBm 2 5Vdc Y Resolder or Change U901 END N Y F903 pin 4 60 dBm Resolder or Change F903 N Y F902 pin 1 2 55 dBm Check OSC901 pin 1 20 dBm Change OSC901 N A...

Page 29: ...0pcl N U1006 9 pin 30 dBm N Change U1005 Change U1004 N Y U1006 2 8 pin Low 4 10 pin High U1005 2 pin High N N U1004 2pin High U703 5pin High 3pin High N Y Change U1006 OSC903 3 pin 0 8 V 2 5 V N Y Change OSC903 U901 17 18 19 20 pin like left Y Change Resister R701 R702 R711 R712 like left Change U1004 Change U703 Y Y N U1004 3pin High Change U1008 1 65 V 0 75 V 1 2 V ...

Page 30: ...Size C A B F 3 REV Changed by 6 5 TITLE D Date Changed E QA CHK COMPANY NAME Engineer SEC 4 1 B 7 C 3 Drawing Number E POWER 7 DOC CTRL CHK RJA RJA RJA 9 SGH Q105 POWER A3 Drawn by D 8 MFG ENGR CHK F 1 8 1 R D CHK A 2 Sheet Power IC 5 15 Power Circuit Diagram SGH Q105 Circuit diagrams ...

Page 31: ...nged 1 E Address 6 3 6 2 9 8 A C F 2 E SGH Q105 B D TO B D CONNECTOR CHARGER A3 Drawing Number Size B D TO B D CONNECTOR A 5 5 2 COMPANY NAME C MFG ENGR CHK R D CHK QA CHK Time Changed Engineer Changed by TITLE DOC CTRL CHK 1 7 8 4 Sheet REV City B CHARGER 4 RJA RJA RJA 5 16 Charger B D TO B D Connector Circuit Diagram ...

Page 32: ... 6 REV C F 7 F B TITLE D DOC CTRL CHK C 3 Drawn by 1 5 Date Changed Size COMPANY NAME I F CONNECTOR B 1 6 4 A of 2 R D CHK MFG ENGR CHK Drawing Number E QA CHK A 5 D EL 4 RJA RJA RJA 3 SGH Q105 I F CONNECTOR EL A3 E 8 Engineer 2 Time Changed 3 Sheet 9 7 8 SEC 5 17 EL I F Connector Circuit Diagram ...

Page 33: ... 8 E DOC CTRL CHK 3 Time Changed C 6 Drawing Number Date Changed 5 5 6 Changed by 4 D SEC 2 1 7 R D CHK F Engineer 2 Size B RJA RJA RJA 4 1 SGH Q105 AUDIO A3 MFG ENGR CHK B 9 D 1 A E 4 C of Sheet Drawn by AUDIO COMPANY NAME TITLE SGH Q105 Circuit diagrams 5 18 Audio Circuit Diagram ...

Page 34: ...TOR 6 R D CHK 7 Drawing Number 4 3 B MFG ENGR CHK BUZZER D Drawn by 7 A of Engineer A TITLE 9 2 8 Sheet QA CHK 6 2 5 4 1 F SEC B Changed by COMPANY NAME 1 8 DOC CTRL CHK REV E C 5 C F RJA RJA RJA 5 SGH Q105 MEMORY BUZZER MOTOR A3 E D 3 SGH Q105 Circuit diagrams 5 19 Motor Buzzer Memory Circuit Diagram ...

Page 35: ... 1 2 5 3 E F 7 8 6 B 6 4 F C Time Changed 3 A Date Changed Engineer Sheet C R D CHK 1 Drawn by E TITLE 8 2 7 REV RJA RJA RJA 6 SGH Q105 Logic A3 D Changed by COMPANY NAME SEC 5 4 9 Size of D QA CHK B MFG ENGR CHK DOC CTRL CHK SGH Q105 Circuit diagrams 5 20 Logic Circuit Diagram ...

Page 36: ...E Changed by 1 2 3 4 MFG ENGR CHK B Time Changed Engineer X TAL 13MHz Drawn by R D CHK 9 Sheet of 7 2 SIM QA CHK 4 REV Drawing Number DOC CTRL CHK 7 8 7 RJA RJA RJA SGH Q105 X TAL 13MHz SIM A3 A Date Changed E COMPANY NAME SEC B C D SGH Q105 Circuit diagrams 5 21 X TAL 13 MHz SIM Circuit Diagram ...

Page 37: ... by 6 5 1 Date Changed Drawing Number DOC CTRL CHK Size TITLE MFG ENGR CHK B RJA MFG ENGR CHK B A REV A E Changed by Time Changed Date Changed DOC CTRL CHK 7 Drawing Number F 5 of 5 Engineer Drawn by D Drawn by 6 3 2 F 7 RJA A3 QA CHK 2 E 2 F Engineer Size E SEC C 8 1 9 8 F R D CHK 1 5 Time Changed 3 RJA RJA SGH Q105 RF IC A3 RF IC SGH Q105 Circuit diagrams 5 22 RF IC Circuit Diagram ...

Page 38: ...SMITTER RECEIVER A 7 B DOC CTRL CHK 6 R D CHK E QA CHK 3 B 6 5 Size Engineer Date Changed C SEC E A MFG ENGR CHK F F Drawn by 5 4 Sheet 2 7 8 Time Changed RJA RJA RJA 9 SGH Q105 TRANSMITTER RECEIVER A3 of 1 C 1 COMPANY NAME D 9 TITLE SGH Q105 Circuit diagrams 5 23 Transmitter Receiver Circuit Diagram ...

Page 39: ... Samsung Electronics Co Ltd October 2001 Pinted in Korea Code No GH68 02382A BASIC ELECTRONICS ...

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