GSM TELEPHONE SGH-C200 SERVICE GSM TELEPHONE Manual CONTENTS 1. Specification 2. Circuit Description 3. Exploded Views and Parts List 4. Electrical Parts List 5. Block Diagrams 6. PCB Diagrams 7.
ELECTRONICS ⓒ Samsung Electronics Co.,Ltd. APRIL. 2004 This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable Printed in Korea. International and/or domestic law. Code No.: GH68-05417A BASIC.
1. SGH-C200 Specification 1. GSM General Specification G SM 9 0 0 Ph a s e 1 EGS M 9 0 0 Ph a s e 2 DC S1 8 0 0 P h as e 1 F r eq . B a n d [M Hz ] Up l in k / Do w n li n k 8 9 0 ~9 1 5 9 3 5 ~9 6 0 8 8 0 ~9 1 5 9 2 5 ~9 6 0 1710~1785 1805~1880 A RF C N r a n g e 1 ~1 2 4 0 ~1 2 4 & 9 7 5 ~ 1 0 2 3 512~885 T x /R x s p ac in g 4 5 MH z 4 5 MH z 9 5 M Hz Mo d . B i t r at e/ Bi t Pe r i o d 2 7 0 .8 3 3 k b p s 3 .6 9 2 u s 2 7 0 .8 3 3 k b p s 3 .6 9 2 u s 2 7 0 .8 3 3 k b p s 3 .
Specification 2.
2. SGH-C200 Circuit Description 1. SGH-C200 RF Circuit Description 1) RX PART 1. ASM(U1007) → Switching Tx, Rx path for EGSM900, and DCS1800 by logic controlling. 2. ASM Control Logic (U1007) → Truth Table VC1 VC2 DCS / PCS Tx Mode H L GSM Tx Mode L H GSM / DCS Rx Mode L L 3. FILTER To convert Electromagnetic Field Wave to Acoustic Wave and then pass the specific frequency band.
Circuit Description 2) TX PART Baseband IQ signal fed into offset PLL, this function is included inside of U900 chip. SI4206 chip generates modulator signal which power level is about 1.5dBm and fed into Power Amplifier(U100). The PA output power and power ramping are well controlled by Auto Power Control circuit. We use offset PLL below Modulation Spectrum 200kHz offset 30 kHz bandwidth GSM -35dBc DCS -35dBc 400kHz offset 30 kHz bandwidth GSM -66dBc DCS -65dBc 600kHz ~ 1.
Circuit Description Both LED drivers are capable of sinking their maximum output current at a worst-case maximum output voltage of 0.6V. For efficient use, the LEDs is connected between the battery and the LED_DRV output. 4. Vibrator Motor Driver The vibrator motor driver is a independent voltage regulator to drive a small dc motor that silently alerts the user of an incoming call. The driver is a 3.0V constant source while sinking up to 180mA and controlled by enable signal of main chip.
Circuit Description 4. EMI Filtering This system uses the EMI Filter to reduce noise from LCD part. Some control signals are connected to LCD without EMI filtering. 3) IF connetor It is 24-pin connector, and separated into two parts. One is a power supply part for main system. And the other is designed to use SDS, DEBUG, DLC-DETECT, JIG_ON, VEXT, VTEST, VF, and GND. They connected to power supply IC, microprocessor and signal processor IC.
Circuit Description 5) Memory This system uses FUJITSU's memory, MB84VP24491HK. It is consisted of 128M bits flash memory and 32M bits FCRAM. It has 16 bit data line, D[0~15] which is connected to trident, LCD or CSP2200. It has 22 bit address lines, A[1~22]. They are also connected. CP_CSROMEN signal, chip select signal in the trident, enable flash memories. They use 3 volt supply voltage, VCCD. During wrting process, CP_WEN is low and it enables writing process to flash memory and FCRAM.
Circuit Description burst. When the timing portion of the event timing and control register matches the internal quarter-bit counter and internal frame counter, the 148 bits in the internal register are GMSK modulated according to GSM 2+ standards. The resulting phase information is translated into I and Q differential output voltages that can be connected directly to an RF modulator at the TXOP and TXON pins. The DSP is notified when the transmission is completed.
3. SGH-C200 Exploded View and its Parts list 1.
Exploded view and its Part list 2. Cellular phone Parts list Location Description NO.
Exploded view and its Part list 3. Test Jig (GH80-00865A) 3-1. RF Test Cable 3-2. Test Cable (GH39-00182A) 3-3. Serial Cable (GH39-00127A) 3-4. Power Supply Cable 3-5. DATA CABLE (GH39-00143B) 3-6.
4.
Electrical Parts List SEC Code Design LOC SEC Code Design LOC 2007-000140 R614 2007-000172 R443 2007-000142 R424 2007-000173 R1000 2007-000142 R418 2007-000174 R806 2007-000146 R404 2007-000174 R807 2007-000148 R438 2007-000174 R808 2007-000148 R501 2007-000174 R809 2007-000148 R504 2007-000174 R810 2007-000153 R103 2007-000174 R811 2007-000157 R115 2007-000174 R812 2007-000157 R608 2007-000174 R813 2007-000157 R600 2007-000174 R814 2007-000159 R440 2007-00
Electrical Parts List SEC Code Design LOC SEC Code Design LOC 2007-007468 R415 2203-000812 C416 2007-007468 R407 2203-000812 C419 2007-007480 R435 2203-000812 C420 2007-008263 R117 2203-000812 C429 2203-000233 C107 2203-000812 C902 2203-000233 C219 2203-000812 C432 2203-000233 C502 2203-000854 C302 2203-000233 C914 2203-000854 C900 2203-000233 C1019 2203-000995 C1011 2203-000254 C1012 2203-000995 C1015 2203-000254 C119 2203-000995 C440 2203-000254 C601 2203
Electrical Parts List SEC Code Design LOC SEC Code Design LOC 2203-005234 C903 2503-001041 C221 2203-005234 C904 2703-002170 L907 2203-005234 C918 2703-002199 L903 2203-005234 C920 2703-002202 L401 2203-005288 C1017 2703-002202 L402 2203-005480 C504 2703-002204 C1007 2203-005482 C100 2703-002204 L1007 2203-005496 C407 2703-002205 L900 2203-005496 C413 2703-002267 C1005 2203-005496 C417 2703-002339 L201 2203-005496 C428 2703-002367 L1005 2203-005496 C430 270
5. SGH-C200 Block Diagrams 1.
Block Diagrams 2.
6. SGH-C200 PCB Diagrams 1.
PCB Diagrams 2.
7. SGH-C200 Flow Chart of Troubleshooting 1. Power On The set is not ' Power On ' Check the current consumption No Current consumption >=100mA Download again Yes Check the +VBATT Voltage No Voltage >= 3.3V Charge the Battery Yes Check the pin of U100 No Check U100 and C115 pin#J12 of U100 >= 2.8V Yes pin#A13 of U100 = 2.8V No No Yes pin#G11 = 1.
Flow Chart of Troubleshooting 2. Initial Initialization Failure Yes The pin#G11 of U100 = 1.8V and the pin#J12 of U100 ≒ 2.825V ? No Check the U100 (If it has some problem, adjust it.) Yes No Is the pin#K9 of U100 "Low -> High"? Check the U100 (If it has some problem, adjust it.) Yes No 32.768kHz wave forms at the C619 and C620 Check the U600 Yes No The Voltage is "High" at the C111 Check the U100 Yes No Check the LCD Part LCD display is O.K Yes No Sound is O.
Flow Chart of Troubleshooting 3.
Flow Chart of Troubleshooting 4. Charging Part Abnormal charging operation No The pin#17, #18 of CN300 is TA_VEXT ≒ 5V ? Replace TA or Check CN300 Yes No Check the U101 The pin#10 of U101 is 3.2~4.2V Yes The ICHRG = 1.
Flow Chart of Troubleshooting JIG_ON_I F TA_VEX T E6 C5 F5 E5 A4 G6 B3 A3 D2 D3 E3 E2 F3 F2 F1 F4 G4 G3 H5 J6 J5 K3 K2 K1 K5 K7 M1 M2 N2 N1 L5 P1 K6 L3 L2 R3 SERLE1 SERLE2 SERDA SERCK OCTL0 OCTL1 OCTL2 OCTL3 OCTL4 OCTL5 OCTL6 OCTL7 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 AB8 AB7 AB6 AB5 AB4 AB3 AB2 AB1 AB0 I|O RWN RESETN_CS P 4 U102 TC7S32F U 100NF B1 A2 C1 C2 Y JIG_O N 0 VCCA C119 10NF VCCD R115 47K VCCD R114 NC CCD C100 100NF VDD34 C11 VDD12 J13 UP_CL K N
Flow Chart of Troubleshooting 5. Microphone Part Microphone does not work Yes No Is the assembled status of microphone O.K? Reassemble the microphone Yes Check the reference voltage on Mic path No Solder the microphone again or C426 > 2.5V Replace around Mic Circuit (C413, C417, R419, R423.....
Flow Chart of Troubleshooting 6. Speaker Part There is no sound from Speaker No Is the terminal of Speaker O.K.
Flow Chart of Troubleshooting SPK1P 10 U402 NLAS4684MNR2 COM2 NO2 NO1 VCC IN1 1 2 3 4 5 VBAT VCCD R400 100K R402 30 YMU_VIB_EN V402 AVLC 5S 02 10 0 AOUTAN SPK1N AUDIO_AMP_EN YMU_SPK1 N VBAT L401 27nH L402 27nH R417 1.8K R423 1.8K C438 22PF C2 C1 C419 33PF C439 18PF C420 33PF ZD402 uClamp0501 H C411 1UF BYPASS4 VOUT U403 LP3985IM5X-3. 0 15 VIN 2 GND 3 ON/OFF SPK1N SPK1P R421 0 C416 GRP1555C1H330J R418 2.7K R424 2.7K OUTA U404 LMC6035ITLX OUTB INA- C3 B3 C412 10UF 6.
Flow Chart of Troubleshooting 8.
Flow Chart of Troubleshooting 9. EGSM transmitter NO U1007 pin#8 : about 2~3 dBm? U1007 pin#4 : 3 V? NO U100 check & change CONTINUS TX ON CONDITION TX POWER DAC:500 CODE APPLIED CH:62 RBW : 100KHz VBW : 100KHz SPAN : 10MHz REF LEV. : 10dBm ATT. : 20dB YES YES CON1, C1015 check&change NO C1005 ≒ 4~5dBm? YES U1000 check & change NO BATTERY, U900 check & change C1003 : 3.7 V? YES NO Between R1005 & U1000 : 1.
Flow Chart of Troubleshooting 10.
Flow Chart of Troubleshooting 11. DCS transmitter U1007 pin#8 : about 2~3 dBm? NO U1007 pin#7 : 3 V? NO CONTINUOUS TX ON CONDITION U100 check & change CH : 698CH(DCS),660CH(PCS) TX POWER CODE: 350 CODE Aplied YES RBW : 100KHz VBW : 100KHz YES CON1, C1015 check&change SPAN : 10MHz L1005: ≒ 4~5dBm? NO REF LEV. : 10dBm ATT. : 20dB YES U1000 check & change NO BATTERY, U900 check & change C1003 : 3.7 V? YES Between R1005 & U1000 : 1.
Flow Chart of Troubleshooting 26 11 23 RFOG 14 RFOD C916 30PF 21 20 19 18 17 16 15 C915 15PF GND RFIPP RFIPN RFIDP RFIDN RFIGP RFIGN 22 VDD 24 13 DIAG1 25 12 SDI 27 U900 DIAG2 SI4206-B M 10 XEN 28 XDRVEN CLK13M_TR L902 27nH (MURATA) L906 6.2nH (MURATA) CLK13M_MC CLK13M_YMU C903 1.2PF C904 1.2PF C918 1.2PF C920 1.2PF C914 100PF L907 6.
Flow Chart of Troubleshooting C1008 33PF R1005 330 VBAT 48 47 C1003 100UF 6.
