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Samsung SGH-Q208, Service Manual

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SAMSUNG Proprietary-Contents may change without notice

1-4

SGH-Q208 Electrical Parts List

2 

2203-000254

C613

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000254

C614

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000254

C615

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-005065

C622

C-CERAMIC, CHIP 1000 NF, +80-20 %, 10 V, Y5 V, TP, 1608

2 

2203-000233

C701

C-CERAMIC, CHIP 0.1 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000233

C702

C-CERAMIC, CHIP 0.1 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000254

C703

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000254

C704

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000233

C705

C-CERAMIC, CHIP 0.1 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000233

C706

C-CERAMIC, CHIP 0.1 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000254

C709

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000254

C710

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000254

C711

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000254

C712

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-005065

C717

C-CERAMIC, CHIP 1000 NF, +80-20 %, 10 V, Y5 V, TP, 1608

2 

2203-000254

C718

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-005061

C720

C-CERAMIC, CHIP 100 NF, +80-20 %, 16 V, Y5 V, TP, 1005

2 

2203-005061

C721

C-CERAMIC, CHIP 100 NF, +80-20 %, 16 V, Y5 V, TP, 1005

2 

2203-005061

C722

C-CERAMIC, CHIP 100 NF, +80-20 %, 16 V, Y5 V, TP, 1005

2 

2203-005065

C723

C-CERAMIC, CHIP 1000 NF, +80-20 %, 10 V, Y5 V, TP, 1608

2 

2203-005065

C724

C-CERAMIC, CHIP 1000 NF, +80-20 %, 10 V, Y5 V, TP, 1608

2 

2203-005065

C725

C-CERAMIC, CHIP 1000 NF, +80-20 %, 10 V, Y5 V, TP, 1608

2 

2203-000254

C732

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000254

C801

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000438

C802

C-CERAMIC, CHIP 1 NF, 10 %, 50 V, X7R, TP, 1005, -

2 

2203-000995

C803

C-CERAMIC, CHIP 0.047 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000812

C804

C-CERAMIC, CHIP 0.033 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000233

C805

C-CERAMIC, CHIP 0.1 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000254

C806

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-000254

C807

C-CERAMIC, CHIP 10 NF, 10 %, 16 V, X7R, TP, 1005, -

2 

2203-005552

C808

C-CERAMIC, CHIP 0.0022 NF, 0.1 PF, 50 V, NP0, TP, 1005

2 

2203-000233

C809

C-CERAMIC, CHIP 0.1 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000995

C810

C-CERAMIC, CHIP 0.047 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000995

C811

C-CERAMIC, CHIP 0.047 NF, 5 %, 50 V, NP0, TP, 1005

2 

2203-000751

C812

C-CERAMIC, CHIP 330 NF, +80-20 %, 16 V, Y5 V, TP, 2012, 

2 

2203-000438

C818

C-CERAMIC, CHIP 1 NF, 10 %, 50 V, X7R, TP, 1005, -

2 

2203-000870

C901

C-CERAMIC, CHIP 0.003 NF, 0.25 PF, 50 V, NP0, TP, 1005

2 

2203-000438

C903

C-CERAMIC, CHIP 1 NF, 10 %, 50 V, X7R, TP, 1005, -

2 

2203-001201

C905

C-CERAMIC, CHIP 0.007 NF, 0.5 PF, 50 V, NP0, TP, 1005

Level

SEC Code

Design LOC

DESCRIPTIONS

Summary of Contents for SGH-Q208

Page 1: ...CE GPRS GSM TELEPHONE SGH Q208 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 ...

Page 2: ... Samsung Electronics Co Ltd April 2002 Pinted in Korea Code No GH68 02791A BASIC ELECTRONICS ...

Page 3: ...6 V X7R TP 1005 2 2203 005571 C101 C CERAMIC CHIP 10000 NF 80 20 6 3 V Y5 V TP 2012 2 2203 005050 C1010 C CERAMIC CHIP 0 0018 NF 0 25 PF 50 V NP0 TP 1005 2 2203 000995 C1011 C CERAMIC CHIP 0 047 NF 5 50 V NP0 TP 1005 2 2203 000233 C1012 C CERAMIC CHIP 0 1 NF 5 50 V NP0 TP 1005 2 2203 000812 C1013 C CERAMIC CHIP 0 033 NF 5 50 V NP0 TP 1005 2 2203 001072 C1014 C CERAMIC CHIP 0 056 NF 5 50 V NP0 TP 1...

Page 4: ...IC CHIP 1000 NF 80 20 10 V Y5 V TP 1608 2 2203 000254 C111 C CERAMIC CHIP 10 NF 10 16 V X7R TP 1005 2 2203 005571 C112 C CERAMIC CHIP 10000 NF 80 20 6 3 V Y5 V TP 2012 2 2203 005065 C113 C CERAMIC CHIP 1000 NF 80 20 10 V Y5 V TP 1608 2 2203 005061 C115 C CERAMIC CHIP 100 NF 80 20 16 V Y5 V TP 1005 2 2203 002494 C116 C CERAMIC CHIP 470 NF 10 16 V X7R TP 2012 2 2404 001281 C117 C TA CHIP 22 UF 20 6 ...

Page 5: ...X7R TP 1005 1 0 mm 2 2203 001630 C501 C CERAMIC CHIP 330 NF 80 20 16 V Y5 V TP 1608 2 2203 001630 C502 C CERAMIC CHIP 330 NF 80 20 16 V Y5 V TP 1608 2 2203 001630 C503 C CERAMIC CHIP 330 NF 80 20 16 V Y5 V TP 1608 2 2203 000812 C504 C CERAMIC CHIP 0 033 NF 5 50 V NP0 TP 1005 2 2203 000812 C505 C CERAMIC CHIP 0 033 NF 5 50 V NP0 TP 1005 2 2203 005061 C506 C CERAMIC CHIP 100 NF 80 20 16 V Y5 V TP 10...

Page 6: ...0 16 V Y5 V TP 1005 2 2203 005061 C722 C CERAMIC CHIP 100 NF 80 20 16 V Y5 V TP 1005 2 2203 005065 C723 C CERAMIC CHIP 1000 NF 80 20 10 V Y5 V TP 1608 2 2203 005065 C724 C CERAMIC CHIP 1000 NF 80 20 10 V Y5 V TP 1608 2 2203 005065 C725 C CERAMIC CHIP 1000 NF 80 20 10 V Y5 V TP 1608 2 2203 000254 C732 C CERAMIC CHIP 10 NF 10 16 V X7R TP 1005 2 2203 000254 C801 C CERAMIC CHIP 10 NF 10 16 V X7R TP 10...

Page 7: ... 000278 C938 C CERAMIC CHIP 0 01 NF 0 5 PF 50 V NP0 TP 1005 2 2203 000438 C939 C CERAMIC CHIP 1 NF 10 50 V X7R TP 1005 2 2301 001214 C940 C FILM CHIP 4 7 NF 5 16 V TP 2012 2 2301 001387 C941 C FILM CHIP 0 82 NF 5 50 V TP 2012 2 2203 000995 C942 C CERAMIC CHIP 0 047 NF 5 50 V NP0 TP 1005 2 2203 002968 C943 C CERAMIC CHIP 0 051 NF 5 50 V NP0 TP 1005 2 2203 000278 C944 C CERAMIC CHIP 0 01 NF 0 5 PF 5...

Page 8: ...401 JACK PHONE 6 P 2 3PI AG BLK 2 3711 004621 CN601 CONNECTOR HEADER BOX 14 P 2R 0 5 mm SMD S AUF 2 3709 001187 CN801 CONNECTOR CARD EDGE 6 P 2 54 MM SMD A 2 0401 001033 D101 DIODE SWITCHING MCL4154 25 V 200mA M MELF TP 2 1405 001082 D202 VARISTOR 5 6 V 20A 1 X 0 5 X 0 6 mm TP 2 1405 001082 D203 VARISTOR 5 6 V 20A 1 X 0 5 X 0 6 mm TP 2 1405 001082 D204 VARISTOR 5 6 V 20A 1 X 0 5 X 0 6 mm TP 2 1405...

Page 9: ... 6 x 0 8 x 0 8 mm 2 2703 001422 L918 INDUCTOR SMD 22 NH 5 1 6 x 0 8 x 0 8 mm 2 2703 001943 L933 INDUCTOR SMD 10 NH 5 1 0 x 0 5 x 0 5 mm 2 4302 001119 M101 BATTERY LI 2ND 3 V 0 1MAH 3 1 V 2 2801 004116 OSC601 CRYSTAL SMD 032768MHZ 30PPM 28 ACM 9 PF 50 OHM TP 2 2809 001255 OSC801 OSCILLATOR VCTC X O 13MHZ 5PPM 10 Kohm 10 PF TP 3 V 2MA 2 2806 001233 OSC901 OSCILLATOR VCO 1167MHz 1615MHz 0 3dBm TP 2 8...

Page 10: ... 1005 2 2007 001301 R1013 R CHIP 68 ohm 5 1 16 W DA TP 1005 2 2007 001301 R1014 R CHIP 68 ohm 5 1 16 W DA TP 1005 2 2007 007132 R1015 R CHIP 15 Kohm 1 1 16 W DA TP 1005 2 2007 001288 R1016 R CHIP 18 ohm 5 1 16 W DA TP 1005 2 2007 007008 R1017 R CHIP 300 OHM 5 1 16 W DA TP 1005 2 2007 007008 R1018 R CHIP 300 OHM 5 1 16 W DA TP 1005 2 2007 000148 R102 R CHIP 10 Kohm 5 1 16 W DA TP 1005 2 2007 000148...

Page 11: ...26 R CHIP 100 ohm 5 1 16 W DA TP 1005 2 2007 000138 R227 R CHIP 100 ohm 5 1 16 W DA TP 1005 2 2007 000138 R228 R CHIP 100 ohm 5 1 16 W DA TP 1005 2 2007 000138 R229 R CHIP 100 ohm 5 1 16 W DA TP 1005 2 2007 000138 R230 R CHIP 100 ohm 5 1 16 W DA TP 1005 2 2007 000138 R231 R CHIP 100 ohm 5 1 16 W DA TP 1005 2 2007 007771 R232 R CHIP 0 OHM 5 1 16 W DA TP 1005 2 2007 000140 R300 R CHIP 1 Kohm 5 1 16 ...

Page 12: ...007 000172 R507 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000143 R508 R CHIP 4 7 Kohm 5 1 16 W DA TP 1005 2 2007 000143 R509 R CHIP 4 7 Kohm 5 1 16 W DA TP 1005 2 2007 007771 R510 R CHIP 0 OHM 5 1 16 W DA TP 1005 2 2007 000157 R511 R CHIP 47 Kohm 5 1 16 W DA TP 1005 2 2007 000157 R512 R CHIP 47 Kohm 5 1 16 W DA TP 1005 2 2007 000148 R514 R CHIP 10 Kohm 5 1 16 W DA TP 1005 2 2007 007771 R517 R CHIP ...

Page 13: ...172 R802 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000161 R803 R CHIP 82 Kohm 5 1 16 W DA TP 1005 2 2007 000151 R804 R CHIP 15 Kohm 5 1 16 W DA TP 1005 2 2007 000174 R805 R CHIP 47 ohm 5 1 16 W DA TP 1005 2 2007 007771 R806 R CHIP 0 OHM 5 1 16 W DA TP 1005 2 2007 000159 R807 R CHIP 56 Kohm 5 1 16 W DA TP 1005 2 2007 000170 R808 R CHIP 1 Mohm 5 1 16 W DA TP 1005 2 2007 007771 R809 R CHIP 0 OHM 5 1 1...

Page 14: ... DA TP 1005 2 2007 000172 R946 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000172 R947 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 1209 001292 U1001 IC ETC LINEAR HD155171NP01EL QF P 24 P 165 MIL PLASTIC 3 6 V 2 1201 001785 U1002 IC POWER AMP 08122 8 P DUAL 34DB 7 V 25TO 100C 2 0801 000794 U1003 IC CMOS LOGIC 7S08 AND GATE SOT 25 5 P 63 MIL 2 0504 001042 U1004 TR DIGITAL BCR10PN NPN PN P 250m W 10K 10K 2 050...

Page 15: ...AU0 1U BLK 2 1405 001082 ZD302 VARISTOR 5 6 V 20A 1 x 0 5 x 0 6 mm TP 2 1405 001082 ZD304 VARISTOR 5 6 V 20A 1 x 0 5 x 0 6 mm TP 2 1405 001082 ZD305 VARISTOR 5 6 V 20A 1 x 0 5 x 0 6 mm TP 2 1405 001082 ZD306 VARISTOR 5 6 V 20A 1 x 0 5 x 0 6 mm TP 2 1405 001082 ZD307 VARISTOR 5 6 V 20A 1 x 0 5 x 0 6 mm TP 2 1405 001082 ZD309 VARISTOR 5 6 V 20A 1 x 0 5 x 0 6 mm TP 2 1405 001082 ZD310 VARISTOR 5 6 V ...

Page 16: ...AMSUNG Proprietary Contents may change without notice 2 1 2 SGH Q208 Exploded View and its Parts List 2 1 Cellular phone Exploded View 1 2 3 4 4 1 4 2 5 6 7 8 10 11 12 13 14 15 16 18 17 19 20 21 22 23 9 ...

Page 17: ... 02484A 6001 000883 GH68 00370C GH75 01100A GH75 01097A GH59 00138A GH75 01099B GH75 01735A GH59 00273A GH92 01290A GH75 01583A 6001 000464 GH42 00173A GH73 00704A GH73 00703A GH75 01103A 6001 001346 GH43 00511A GH43 00507A GH72 02482A GH75 01101A GH59 00272A GH07 00093A 3101 001280 3001 001251 GH75 01102A GH72 02484A 6001 000883 GH68 00370C GH75 01100A GH75 01097A GH59 00138A GH75 01099A GH75 017...

Page 18: ... 00865A P O W E R O N D S K 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 8 6 5 A Data Cable Test Cable GH39 00127A 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 ...

Page 19: ...M TX VCO RF FILTER FEM LNA LNA RX SAW RX SAW RF VCO GSM 1150 MHz 1185 MHz DCS RX 1580 MHz 1655 MHz TX 1575 MHz 1650 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 DCS 270 MHz GSM 540 MHz 1 2 1 2 GSM 270 MHz DCS 135 MHz I Q MODULATOR PD LOOP FILTER GSM 270 MHz DCS 135 MHz UI AUDIO SERIAL DATA CLK L...

Page 20: ...x 1 DAI Audio LCD Keypad B D to B D Connector Memory Part CSP1099 ACC PPI Programmable Peripheral I O SMART CARD RTC JTAG ICE DSP16000 ARM7TDMI EMI External Memory Interface 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 BRIGHT3 PAM MAIN VCO TX VCO IF VCO IO RWN AB 8 0 DB 15 0 INT1 IRQx PAx RS...

Page 21: ...601 D302 D303 D501 DAICK DAIDI DAIDO DAIRN F1001 F1002 F901 F903 F904 H900 JTAG1 JTAG2 L1010 L904 L905 L909 L911 L912 L914 L915 L916 L918 L919 L933 L_WR MIC400 OSC601 OSC901 OSC902 OSC903 Q1001 Q1002 Q1003 Q501 Q502 Q503 R1000 R1001 R1002 R1003 R1007 R1016 R1017 R1018 R1021 R1022 R1023 R1024 R1025 R1026 R18 R205 R401 R402 R403 R404 R405 R406 R407 R408 R426 R427 R502 R503 R504 R507 R510 R511 R512 R...

Page 22: ...01 CN202 CN203 CN301 CN401 CN801 D101 D202 D203 D204 D502 F1003 F902 L1001 L1002 L1004 L1005 L1006 L1007 L1008 L1009 L101 L902 L903 L907 L910 M101 OSC801 Q101 Q102 Q114 Q201 Q204 Q205 Q301 Q601 Q602 Q603 R1004 R1005 R1006 R1008 R1009 R101 R1010 R1011 R1012 R1013 R1014 R1015 R102 R1020 R104 R105 R107 R108 R109 R110 R115 R116 R117 R119 R201 R202 R203 R204 R206 R210 R211 R212 R213 R214 R215 R216 R217...

Page 23: ... mA Download again N Y Check the 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 0 V N U101 pin 1 1 8 V N Y END Y Check the clock signal at pin4 of U801 Freq 13 MHz Vrms 300 mV Vpp is around 900 mVpp Check the clock generation circuit related to OSC801 and U801 Check the initial operation Check U101 and C103 C104...

Page 24: ...ck the U701 N Y Check the pin 4 of OSC801 is around 3 0 V Check the soldered status of OSC801 R801 U101 N Check the soldered status of OSC801 U801 Y END Y Check LCD connector CN203 and resolder bridge SAMSUNG Proprietary Contents may change without notice 5 2 SGH Q208 Flow Chart of Troubleshooting and Circuit Diagrams Check the pin 4 of U801 is around 3 0 V ...

Page 25: ... N Y Check the pin 1 of CN801 voltage 2 8 V Check the circuit related to U802 N Y Check the SIM connector s CN801 Connection to SIM card Resolder or change CN801 N Check the related circuit of U802 N Check the related circuit of U601 and U101 END Y Check the circuit around U802 input circuitry Y Check the circuit around U601 output and vlotage supply circuitry ...

Page 26: ...t Diagrams Abnormal charging part Y N Y Check the pin 17 18 of CN301 is around 5 V Replace TA N Y Check the pin 2 of U202 is Low Resolder U202 R204 R203 Check the U601 N Y Check the pin 1 of Q201 is Low Resolder Q201 U201 N Y Check the pin 5 of U201 is between 3 2 V and 4 2 V Change U201 END 5 4 Charging Part ...

Page 27: ...nd Circuit Diagrams 5 5 Microphone Part Micro Phone does not work Y N Y check the contact status of microphone Refabricate or change the microphone holder 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 C410 R407 C404 R403 R405 ...

Page 28: ...s not work Y N Y Check the soldered status of ear jack connector CN401 Resolder or change CN401 N Y Check the connection status SPK to CN203 Resolder and check the board to board connector N Y Check soldered status around CN401 Resolder or change C422 ZD404 C421 ZD402 N Y Is Speaker working Replace the Speaker END 5 6 Speaker Part ...

Page 29: ...iagrams 5 7 Key Data Input Check initial operation Y Y N Y When one of the keys is pushed one of pin 2 4 6 8 10 of CN202 is High Check the U601 N Y When one of the keys is pushed one of pin 1 3 5 7 9 of CN202 is High Resloder CN202 or replace the key PCB END Check the connection between CN202 and LCD module PCB ...

Page 30: ...rcuit Diagrams 5 8 Ring Indicator Ring Indicator does not work Y Y N Y Check the Q601 pin 2 is High Check U601 N Y Check the Q601 3 pin 3 is Low Replace Q601 Q602 Q603 N Y Check the voltage of Ring indicator Anode is around 3 7 V Resolder or change LED END Check the connection between CN203 and Keypad PCB ...

Page 31: ... 5 9 Back Light Backlight does not work Y Y N Y Backlight ON mode in the menu Select backlight ON mode N Y Q301 pin 1 High Resolder or change Q301 R322 N Y Check the connection from CN203 to LCD Module Replace FPCB Connector N Y LCD backlight on Replace EL between LCD and LCD PCB END Check the soldered status of EL pad ...

Page 32: ...here 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 Q208 Flow Chart of Troubleshooting and Circuit Diagrams Alert tone on by pushing the key 0289 ...

Page 33: ...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 5 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 5 Vdc 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 ...

Page 34: ...hout notice 5 12 SGH Q208 Flow Chart of Troubleshooting and Circuit Diagrams 5 12 GSM Transmitter GSM TX 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 Change U1004 Change U703 Y Y N U1004 3pin Low Change U1008 ...

Page 35: ...older or Change U901 Y F1003 pin 5 73 dBm Resolder F1003 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 5 Vdc 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 ...

Page 36: ...nge CN1001 DCS TX 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 N Board Change Change U1004 Change U703 Y Y N U1004 3pin High Change U1008 1 75 V 0 75 V 1 25 V ...

Page 37: ... Troubleshooting and Circuit Diagrams 2 E COMPANY NAME 5 1 REV F A of C D 5 MFG ENGR CHK 1 2 F 3 SEC 6 7 0 1 Time Changed Engineer B 3 4 E DOC CTRL CHK 6 7 8 1 SAMY SAMY 10 47 38 am 2002 01 17 SAMY 10 SGH Q208 A3 Changed by POWER 4 Date Changed 8 QA CHK Drawn by Drawing Number Sheet R D CHK Size TITLE A B C D ...

Page 38: ...hanged Time Changed Engineer Drawn by R D CHK COMPANY NAME Address DOC CTRL CHK MFG ENGR CHK 6 E 7 8 City B D TO B D CONNECTOR QA CHK REV Drawing Number 0 1 SGH Q208 A3 2 3 4 5 F 1 Size TITLE B Sheet 5 6 C 1 E 7 CHARGER 2 3 4 B C 2 10 of Changed by user5 user5 11 12 09 am 2002 01 17 user5 5 16 Charger B D TO B D Connector Circuit Diagram ...

Page 39: ...ams REV Drawing Number D 6 of COMPANY NAME E QA CHK 1 Size A 4 SEC Drawn by C Changed by Date Changed C 5 6 8 Engineer 10 TITLE 7 3 SGH Q208 A3 B 4 F 8 I F CONNECTOR E 1 5 R D CHK A MFG ENGR CHK Sheet B 2 3 Time Changed 7 DOC CTRL CHK D F 2 SAMY SAMY 2 06 48 pm 2002 01 17 SAMY 3 0 1 5 17 I F Connector Circuit Diagram ...

Page 40: ...f Troubleshooting and Circuit Diagrams B 10 C Drawing Number COMPANY NAME 5 D AUDIO Size 4 A D Sheet 8 A Time Changed F 4 2 B A3 Engineer 6 of 3 Date Changed R D CHK 1 SEC DOC CTRL CHK 5 QA CHK REV E TITLE 8 2 1 Changed by 3 F 6 MFG ENGR CHK 7 7 E C Drawn by SAMY 2002 01 17 8 55 41 am SAMY SAMY 0 1 4 SGH Q208 ...

Page 41: ...f Troubleshooting and Circuit Diagrams Drawing Number 2 7 A 8 5 6 Engineer 6 7 5 Date Changed C Time Changed E 8 MFG ENGR CHK D MEMORY Changed by 1 QA CHK 2 4 F E F R D CHK of C Size 3 4 A DOC CTRL CHK REV BUZZER Sheet COMPANY NAME 1 Drawn by TITLE 10 SEC 3 B D SAMY SAMY 3 07 43 pm 2002 01 17 SAMY 5 0 1 SGH Q208 A3 B ...

Page 42: ...ng and Circuit Diagrams 9 4 F Drawn by 4 G 2 8 7 5 TITLE Time Changed A 10 6 11 3 6 Engineer 10 8 B D D 7 H G MFG ENGR CHK QA CHK F 5 REV 12 Sheet A C 1 SGH Q208 A2 10 Date Changed R D CHK DOC CTRL CHK 11 6 TRIDENT of 1 Size Drawing Number C E 12 3 E Changed by 9 COMPANY NAME 2 B SEC H SAMY 2002 01 17 2 28 36 pm SAMY SAMY 0 1 ...

Page 43: ... Troubleshooting and Circuit Diagrams A F C REV DOC CTRL CHK 1 8 5 E E F 8 B 1 QA CHK 3 Date Changed Engineer 4 D Changed by 2 3 A COMPANY NAME SEC 7 6 SAMY 7 0 1 SGH Q208 A3 10 Size of Time Changed B 5 6 Sheet Drawing Number 7 2 4 TITLE CSP1089 Drawn by R D CHK C MFG ENGR CHK D SAMY SAMY 10 54 38 am 2002 01 17 ...

Page 44: ...f Troubleshooting and Circuit Diagrams D D Changed by Date Changed 8 1 3 B C 4 5 6 Size TITLE 6 DOC CTRL CHK X TAL 13MHz F E SEC E A3 8 QA CHK 4 SIM Drawing Number Sheet of COMPANY NAME Drawn by R D CHK Engineer REV A 7 10 8 0 1 2 MFG ENGR CHK B F Time Changed 2 A 5 7 C 1 3 SAMY 2002 01 17 8 08 40 pm SAMY SAMY SGH Q208 ...

Page 45: ...LM_CAP 4 B of E Drawing Number A 7 R D CHK 2 SEC FILM_CAP D E 9 of 6 5 SAMY 5 8 Sheet 1 1 B D FILM_CAP E 4 DOC CTRL CHK 1 10 8 Date Changed 8 3 REV C COMPANY NAME F 6 8 FILM_CAP B REV Changed by Engineer F 5 MFG ENGR CHK 2 DOC CTRL CHK Drawn by Time Changed COMPANY NAME Time Changed Date Changed D QA CHK Engineer 1 6 BRIGHT3 F E 3 Size QA CHK SGH Q208 A3 10 39 03 am SAMY SAMY A3 2 TITLE 7 7 FILM_C...

Page 46: ... MFG ENGR CHK Drawing Number REV Sheet 10 Time Changed 5 C D E TITLE DOC CTRL CHK COMPANY NAME 2 TRANSMITTER RECEIVER 7 R D CHK A B 4 3 F SAMY SAMY 0 1 10 SGH Q208 A3 Size A 5 6 of 6 8 Date Changed Changed by Drawn by F C 3 SEC E B 1 7 SAMY 2002 01 17 6 40 54 pm 4 2 VAPC VCTL 7 3 VDD1 VDD2 6 12 13 G5 G6 14 15 G7 G8 16 17 G9 1 GSM 5 POUTDCS POUTGSM U1002 DCS 8 9 G1 G10 18 G2 10 11 G3 G4 ...

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