Samsung STH-N275 Service Manual Download

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Need to check

Q107, Q106

Replace dome S/W

Need to check

Q107, Q106

Need to replace

Memory(U202)

Need to check neighbor part

Need to check OSC320,

Y201 & neighbor part

SAMSUNG Proprietary-Contents may change without notice

1-1

1. Trouble Shooting

1. Baseband Section

1-1. Program No Running

Press END Key

ON_SW=H

VBAT>3.2V

VCTCXO_IN=14.4MHz

32K_XIN=32.768 kHZ

Memory (U202)

control signal OK?

VCC=3.0V

V_VCTCXO=3.0V

RST=3.0V

IVCC=2.2V

BOOT=H

Program Running

VCC, ADD(0:21), DATA(0:15),

FLASH_CS, SRAM_CS, UBE,

MEMOEB, MEMWEB

Summary of Contents for STH-N275

Page 1: ...hbor part SAMSUNG Proprietary Contents may change without notice 1 1 1 Trouble Shooting 1 Baseband Section 1 1 Program No Running Press END Key Y Y Y Y Y Y ON_SW H VBAT 3 2V VCTCXO_IN 14 4MHz 32K_XIN 32 768 kHZ Memory U202 control signal OK VCC 3 0V V_VCTCXO 3 0V RST 3 0V IVCC 2 2V BOOT H Program Running VCC ADD 0 21 DATA 0 15 FLASH_CS SRAM_CS UBE MEMOEB MEMWEB ...

Page 2: ... N Need to check U104 neighbor Part Y EL Back light OK VCC ADD 2 DATA 0 7 DISPLAY_CS RST LCD Display Running Send Command EL enable N Need to check R216 U205 D202 Y Y VIBRATOR H N Need to check CN202 Y Vibrator Run OK LCD Display Running EL Back lingt Running Send Command Vibrator enable N Need to check SPK101 neighbor part Y Y REC20 Signal OK LCD EL Vibrator OK Send Command Main Audio Receiver Pa...

Page 3: ...art 1 3 Abnormal Key Mic LED S operation Press Keys Y Y Key Dispaly OK Y Key Display Good Send Command Main Audio Path ON Input Audio signal to MIC N Need to check D210 D211 Q204 Q206 Y Y Y LED Operation OK Key Display Good Mic Path Good Send Command ALT_LED_ON Send Command SVC_LED_ON Send Command LED_ON Audio signal outpur at Speaker GOOD ...

Page 4: ...hout notice 1 4 Trouble Shooting 1 4 Abnormal Buzzer Operation START Y N Need to check U204 D201 CN202 Y Y Ringer Signal OK Send Command Ringer Path ON Send Command tone generator ON N Replace CN202 Y Buzzer Sound Output OK Buzzer Operation Good ...

Page 5: ..._Mic Jack operation START Y N Need to check Q102 CN101 neighbor parts Y Y HEADSET_SENSE H Hock Up Ear_Mic Phone in the Jack U102 Send Command MIC_BIAS_EN enable Send Command AMP_EN enable N Need to check Q102 CN101 neighbor parts Y Y SEND_END H Press Button on the Ear Jack Ear_Mic phone Operation Good ...

Page 6: ... without notice 1 6 Trouble Shooting 2 RF Section 2 1 Call processing and Online Test N DONE START Y Y Normal SVC Check RX path N Y Set up Call OK Check TX path N Y Measure SINAD BER Good Check RX path N Y Measure Tx Power Good Check TX path ...

Page 7: ...output 49dBm Y N Need to check F306 U301_8 53dBm N Need to check F304 neighbor parts Y RF_BAND L RX_BAT H PLL_ON H PON_LC H VCTCXO_PC H IF_ON H PON_VRF3 H set up 8920B basestation for RX test Set Base station RX Lev 50 dBm Send Command Cell band selection Send Command RX path ON Send Command channel selecton START N Y V_LNA_CELL H U107_1 H U105_1 H Need to check U301 neighbor parts F304 input 33dB...

Page 8: ...arts U304_1 2 3 Need to check U105 neighbor parts N Y Y Y Y Y RF loal check U304_48 Lev 6dBm Freq adjusted freq 1 U304_41 Lev 23dBm Freq 130 05MHz U304_34 Lev 33dBm Freq 130 05MHz N Need to check U304 L303 C308 L301 C307 U304_37 Lev 1dBm Freq 450kHz Y N Replace F301 or Need to check R302 R304 C301 U304_25 Lev 7dBm Freq 450kHz MODE U304_40 42 3 0V 4 3 ...

Page 9: ...N_LD H Case AMPS mode setup basestation for RX test Audio Freq gen 1004Hz FM deviation 2 9kHz 4 Y Y Y U304_16 DEMOD sinusoidal wave Vp p 24mV Freq 1004Hz N Need to check U304 R327 R323 C353 C107 U101_52 DEMOD sinusoidal wave MAX Vp p 1 4V Freq 1004Hz N Replace U203 Y U101_40 BBCLK 6 2208MHz or 4 96NHz or 5 12MHz N Replace U203 Y U101_32RX_CLK BBCLK 2 or BBCLK 8 N Replace U203 Y U101_31 RX_SYNC BBC...

Page 10: ...01_40 BBCLK 6 2208MHz or 4 096MHz or5 12MHz Y U101_34 TX_CLK BBCLK 32 or BBCLK 8 Y U101_33 TX_SYNC BBCLK 512 or BBCLK 128 Y U101_33 TX_DATA serial data RF_BAND L TX_BAT H PLL_ON H VCYCXO_PC H IF_ON H PON_TX H PON_VRF3 H setup 8920B as basestaion for TX test audio signal Send Command cell band selection Send command TX path ON Send Command channel selection START AMPS TDMA 2 1 MODE ...

Page 11: ...60 58 57 TX I Q Quarature signal AC Lev Vp_p 0 4V DC bias Lev 1 5V U101_63 MOD sinusoidal wave MAX Vp p 1 4V Freq 1004Hz OSC303_1 FM modulation out Freq 175 05MHz Audio Freq 1004Hz Need to check OSC303 V_IF_VCO 3 0V N Y N N Y Need to check U304_66 or Replace U304 U304_59 RF OUT measure Level Send command PA_CNT Level is adjustable N Y Replace F310 U304_59 RF OUT Fc Local_freq 175 05 N Y ...

Page 12: ...7 U307 Gain around 27dB N Y Replace F309 F309 Insertion loss around 3dB N Y Need to check V_PA_BAIS_CELL U305_5 6 7 3 0V VBATT U305_14 15 16 3 2 1V or Replace U305 U305 Gain around 30dB N Y Need to check F313 neighbor parts F306_1 around same power with U305 output N Y Need to check F313 neighbor parts F306 insertion loss under 3dB N DONE ...

Page 13: ...H N275 RUBBER D GRY 50 1 GH73 00567A RMO I F CONNECTOR STH N275 RUBBER D GRY G4358 50 1 GH73 00715A RMO DUPLEX STH N275 RUBBER 15 X 8 5 X T0 5 1 GH74 01274A MPR CHIP SHORT TAPE STH N275 TAPE 4 X 5 X T0 05 1 GH74 01275A MPR FPCB SHORT TAPE STH N275 TAPE 4 3 X 17 X T0 05 1 GH74 01276A MPR BATTERY SHORT TAPE STH N275 TAPE 7 X 5 X T0 05 1 GH75 00223G MEC HANGER ROPE SGH 2300 D GRY 1 GH75 01062A MEC ME...

Page 14: ...50 W SOT 323 5L 3 0406 001083 ZD207 DIODE TVS 6 1 7 2 V 150 W SOT 323 5L 3 0406 001083 ZD208 DIODE TVS 6 1 7 2 V 150 W SOT 323 5L 3 0407 000115 D201 DIODE ARRAY DAN202U 80 V 100 mA CA2 3 SC 70 3 0407 000115 D202 DIODE ARRAY DAN202U 80 V 100 mA CA2 3 SC 70 3 0501 000225 Q107 TR SMALL SIGNAL 2SC4617 NPN 200 mW EM3 TP 120 5 3 0501 000225 Q202 TR SMALL SIGNAL 2SC4617 NPN 200 mW EM3 TP 120 5 3 0501 002...

Page 15: ... 001636 U307 IC RF AMP 2376 SOT 23 6P 63MIL SINGLE 27dB PLASTIC 3 3 V 3 1201 001639 U102 IC AUDIO AMP 4882 SOP 8P 118MIL PLASTIC 5 5 V 3 1203 001302 U108 IC POSI ADJUST REG 5205 SOT 23 5P 119MIL PLASTIC 3 1203 001835 U206 IC RESET 3470 SOT23 5P PLASTIC 0 99 1 01 V 300 mW 3 1203 001979 U105 IC VOLTAGE REGULATOR 5320 SSOP 8P 110MIL PLASTIC 6 12 V 3 1203 001979 U110 IC VOLTAGE REGULATOR 5320 SSOP 8P ...

Page 16: ...5 R336 R CHIP 6 2 kohm 5 1 16 W DA TP 1005 3 2007 000145 R378 R CHIP 6 2 kohm 5 1 16 W DA TP 1005 3 2007 000145 R395 R CHIP 6 2 kohm 5 1 16 W DA TP 1005 3 2007 000146 R143 R CHIP 6 8 kohm 5 1 16 W DA TP 1005 3 2007 000148 R101 R CHIP 10 kohm 5 1 16 W DA TP 1005 3 2007 000148 R105 R CHIP 10 kohm 5 1 16 W DA TP 1005 3 2007 000148 R114 R CHIP 10 kohm 5 1 16 W DA TP 1005 3 2007 000148 R124 R CHIP 10 k...

Page 17: ...150 R CHIP 100 kohm 5 1 16 W DA TP 1005 3 2007 000162 R153 R CHIP 100 kohm 5 1 16 W DA TP 1005 3 2007 000162 R156 R CHIP 100 kohm 5 1 16 W DA TP 1005 3 2007 000162 R206 R CHIP 100 kohm 5 1 16 W DA TP 1005 3 2007 000162 R207 R CHIP 100 kohm 5 1 16 W DA TP 1005 3 2007 000162 R209 R CHIP 100 kohm 5 1 16 W DA TP 1005 3 2007 000162 R211 R CHIP 100 kohm 5 1 16 W DA TP 1005 3 2007 000162 R213 R CHIP 100 ...

Page 18: ...HIP 22 ohm 5 1 16 W DA TP 1005 3 2007 000173 R225 R CHIP 22 ohm 5 1 16 W DA TP 1005 3 2007 000173 R226 R CHIP 22 ohm 5 1 16 W DA TP 1005 3 2007 000173 R227 R CHIP 22 ohm 5 1 16 W DA TP 1005 3 2007 000173 R228 R CHIP 22 ohm 5 1 16 W DA TP 1005 3 2007 000173 R229 R CHIP 22 ohm 5 1 16 W DA TP 1005 3 2007 000173 R234 R CHIP 22 ohm 5 1 16 W DA TP 1005 3 2007 000173 R235 R CHIP 22 ohm 5 1 16 W DA TP 100...

Page 19: ...1341 R112 R CHIP 680 kohm 5 1 16 W DA TP 1005 3 2007 002797 R305 R CHIP 560 ohm 5 1 16 W DA TP 1005 3 2007 002797 R310 R CHIP 560 ohm 5 1 16 W DA TP 1005 3 2007 002797 R391 R CHIP 560 ohm 5 1 16 W DA TP 1005 3 2007 003013 R304 R CHIP 2 4 kohm 5 1 16 W DA TP 1005 3 2007 003112 R147 R CHIP 27 ohm 5 1 16 W DA TP 1005 3 2007 003112 R303 R CHIP 27 ohm 5 1 16 W DA TP 1005 3 2007 003112 R314 R CHIP 27 oh...

Page 20: ...7 C CERAMIC CHIP 0 1 nF 5 50 V NP0 TP 1005 3 2203 000233 C335 C CERAMIC CHIP 0 1 nF 5 50 V NP0 TP 1005 3 2203 000233 C337 C CERAMIC CHIP 0 1 nF 5 50 V NP0 TP 1005 3 2203 000233 C339 C CERAMIC CHIP 0 1 nF 5 50 V NP0 TP 1005 3 2203 000233 C344 C CERAMIC CHIP 0 1 nF 5 50 V NP0 TP 1005 3 2203 000233 C352 C CERAMIC CHIP 0 1 nF 5 50 V NP0 TP 1005 3 2203 000233 C355 C CERAMIC CHIP 0 1 nF 5 50 V NP0 TP 10...

Page 21: ...3 2203 000278 C111 C CERAMIC CHIP 0 01 nF 0 5 pF 50 V NP0 TP 1005 3 2203 000278 C187 C CERAMIC CHIP 0 01 nF 0 5 pF 50 V NP0 TP 1005 3 2203 000278 C203 C CERAMIC CHIP 0 01 nF 0 5 pF 50 V NP0 TP 1005 3 2203 000278 C309 C CERAMIC CHIP 0 01 nF 0 5 pF 50 V NP0 TP 1005 3 2203 000278 C314 C CERAMIC CHIP 0 01 nF 0 5 pF 50 V NP0 TP 1005 3 2203 000278 C328 C CERAMIC CHIP 0 01 nF 0 5 pF 50 V NP0 TP 1005 3 22...

Page 22: ... 3 2203 000679 C121 C CERAMIC CHIP 0 027 nF 5 50 V NP0 TP 1005 3 2203 000679 C186 C CERAMIC CHIP 0 027 nF 5 50 V NP0 TP 1005 3 2203 000679 C189 C CERAMIC CHIP 0 027 nF 5 50 V NP0 TP 1005 3 2203 000696 C390 C CERAMIC CHIP 0 002 nF 0 25 pF 50 V NP0 TP 1005 3 2203 000696 C392 C CERAMIC CHIP 0 002 nF 0 25 pF 50 V NP0 TP 1005 3 2203 000696 C406 C CERAMIC CHIP 0 002 nF 0 25 pF 50 V NP0 TP 1005 3 2203 00...

Page 23: ...F 80 20 16 V Y5 V TP 1005 3 2203 005061 C104 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C105 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C108 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C109 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C110 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C112 C CERAMIC CHIP 100 nF 80 20 16...

Page 24: ... 80 20 16 V Y5 V TP 1005 3 2203 005061 C233 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C234 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C301 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C302 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C310 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 3 2203 005061 C311 C CERAMIC CHIP 100 nF 80 20 16 ...

Page 25: ...0 V NP0 TP 1005 3 2203 005393 C401 C CERAMIC CHIP 0 005 nF 0 1 pF 50 V NP0 TP 1005 3 2203 005393 C460 C CERAMIC CHIP 0 005 nF 0 1 pF 50 V NP0 TP 1005 3 2203 005480 C376 C CERAMIC CHIP 33 nF 10 10 V X7R TP 1005 3 2203 005494 C356 C CERAMIC CHIP 220 nF 10 10 V X7R TP 1608 3 2203 005496 C125 C CERAMIC CHIP 220 nF 80 20 10 V Y5 V TP 1005 3 2203 005708 C150 C CERAMIC CHIP 100 nF 10 100 V Y5P TP 3225 3 ...

Page 26: ... 5 mm 3 2703 001727 L301 INDUCTOR SMD 22 nH 5 1 x 0 5 x 0 5 mm 3 2703 001733 L311 INDUCTOR SMD 8 2 nH 5 1 x 0 5 x 0 5 mm 3 2703 001733 L314 INDUCTOR SMD 8 2 nH 5 1 x 0 5 x 0 5 mm 3 2703 001733 L324 INDUCTOR SMD 8 2 nH 5 1 x 0 5 x 0 5 mm 3 2703 001734 L313 INDUCTOR SMD 6 8 nH 5 1 x 0 5 x 0 5 mm 3 2703 001734 L323 INDUCTOR SMD 6 8 nH 5 1 x 0 5 x 0 5 mm 3 2703 001734 L334 INDUCTOR SMD 6 8 nH 5 1 x 0 ...

Page 27: ...0 MHz 12dB 0 5dB 3 4709 001226 F313 COUPLER DIRECTION 800 850 MHz 15 5dB 24dB 2 x 1 25 x 1 mm TP 3 GH41 00118A PCB PCB STHN270 STH N270 FR 4 6 0 8T 118 x 140 1 GH92 00863A PBA MAIN STHN270 STH N270 BRAZ MAIN PBA 2 0401 001091 D101 DIODE SWITCHING 1SS376 250 V SOD 323 TP 2 0404 001093 D301 DIODE SCHOTTKY HSMS 282C 1 V 30 mA SOT 323 TP 2 0404 001110 ZD209 DIODE SCHOTTKY RB751S 40 40 V 30 mA SOD 523 ...

Page 28: ... 0601 000273 D206 LED CHIP Y GRN 0 8 x 1 2 mm 570 nm 2 0601 000273 D207 LED CHIP Y GRN 0 8 x 1 2 mm 570 nm 2 0601 000273 D208 LED CHIP Y GRN 0 8 x 1 2 mm 570 nm 2 0601 000273 D209 LED CHIP Y GRN 0 8 x 1 2 mm 570 nm 2 0601 001094 D211 LED CHIP Y GRN 0 8 x 1 1 mm 570 nm 2 0601 001226 D210 LED CHIP RED 1 2 x 0 8 mm 660 nm 2 1003 001300 U104 IC DRIVER SM8142BD EL SOJ 8P 110MIL TP PLASTIC 2 1009 001006...

Page 29: ...1 16 W DA TP 1005 2 2007 000140 R357 R CHIP 1 kohm 5 1 16 W DA TP 1005 2 2007 000141 R103 R CHIP 2 2 kohm 5 1 16 W DA TP 1005 2 2007 000141 R233 R CHIP 2 2 kohm 5 1 16 W DA TP 1005 2 2007 000141 R363 R CHIP 2 2 kohm 5 1 16 W DA TP 1005 2 2007 000141 R369 R CHIP 2 2 kohm 5 1 16 W DA TP 1005 2 2007 000142 R121 R CHIP 2 7 kohm 5 1 16 W DA TP 1005 2 2007 000143 R320 R CHIP 4 7 kohm 5 1 16 W DA TP 1005...

Page 30: ...HIP 47 kohm 5 1 16 W DA TP 1005 2 2007 000159 R359 R CHIP 56 kohm 5 1 16 W DA TP 1005 2 2007 000162 R130 R CHIP 100 kohm 5 1 16 W DA TP 1005 2 2007 000162 R131 R CHIP 100 kohm 5 1 16 W DA TP 1005 2 2007 000162 R132 R CHIP 100 kohm 5 1 16 W DA TP 1005 2 2007 000162 R135 R CHIP 100 kohm 5 1 16 W DA TP 1005 2 2007 000162 R136 R CHIP 100 kohm 5 1 16 W DA TP 1005 2 2007 000162 R144 R CHIP 100 kohm 5 1 ...

Page 31: ...07 000172 R344 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000172 R347 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000172 R350 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000172 R356 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000172 R373 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000172 R379 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000172 R380 R CHIP 10 ohm 5 1 16 W DA TP 1005 2 2007 000172 R383 R CHIP 10 ohm ...

Page 32: ...98 R381 R CHIP 51 ohm 5 1 16 W DA TP 1005 2 2007 001305 R388 R CHIP 120 ohm 5 1 16 W DA TP 1005 2 2007 001311 R309 R CHIP 270 ohm 5 1 16 W DA TP 1005 2 2007 001311 R316 R CHIP 270 ohm 5 1 16 W DA TP 1005 2 2007 001311 R346 R CHIP 270 ohm 5 1 16 W DA TP 1005 2 2007 001316 R302 R CHIP 820 ohm 5 1 16 W DA TP 1005 2 2007 001320 R102 R CHIP 1 8 kohm 5 1 16 W DA TP 1005 2 2007 001320 R107 R CHIP 1 8 koh...

Page 33: ...007 007771 R244 R CHIP 0 ohm 5 1 16 W DA TP 1005 2 2007 007771 R245 R CHIP 0 ohm 5 1 16 W DA TP 1005 2 2007 007771 R308 R CHIP 0 ohm 5 1 16 W DA TP 1005 2 2007 007771 R338 R CHIP 0 ohm 5 1 16 W DA TP 1005 2 2007 007771 R374 R CHIP 0 ohm 5 1 16 W DA TP 1005 2 2007 007943 R115 R CHIP 560 kohm 1 1 16 W DA TP 1005 2 2007 008037 R111 R CHIP 57 6 kohm 1 1 16 W DA TP 1005 2 2007 008163 R125 R CHIP 86 6 k...

Page 34: ...05 2 2203 000254 C313 C CERAMIC CHIP 10 nF 10 16 V X 7R TP 1005 2 2203 000254 C338 C CERAMIC CHIP 10 nF 10 16 V X 7R TP 1005 2 2203 000254 C363 C CERAMIC CHIP 10 nF 10 16 V X 7R TP 1005 2 2203 000254 C381 C CERAMIC CHIP 10 nF 10 16 V X 7R TP 1005 2 2203 000254 C383 C CERAMIC CHIP 10 nF 10 16 V X 7R TP 1005 2 2203 000254 C384 C CERAMIC CHIP 10 nF 10 16 V X 7R TP 1005 2 2203 000254 C418 C CERAMIC CH...

Page 35: ...P 1005 2 2203 000438 C413 C CERAMIC CHIP 1 nF 10 50 V X 7R TP 1005 2 2203 000438 C427 C CERAMIC CHIP 1 nF 10 50 V X 7R TP 1005 2 2203 000438 C469 C CERAMIC CHIP 1 nF 10 50 V X 7R TP 1005 2 2203 000438 C474 C CERAMIC CHIP 1 nF 10 50 V X 7R TP 1005 2 2203 000466 C345 C CERAMIC CHIP 0 001 nF 0 25 pF 50 V NP0 TP 1005 2 2203 000489 C353 C CERAMIC CHIP 2 2 nF 10 50 V X 7R TP 1005 2 2203 000489 C375 C CE...

Page 36: ...153 C307 C CERAMIC CHIP 0 068 nF 5 50 V NP0 TP 1005 2 2203 001201 C305 C CERAMIC CHIP 0 007 nF 0 5 pF 50 V NP0 TP 1005 2 2203 001210 C442 C CERAMIC CHIP 8 2 nF 10 16 V X 7R TP 1005 2 2203 001259 C308 C CERAMIC CHIP 0 008 nF 0 5 pF 50 V NP0 TP 1005 2 2203 001259 C340 C CERAMIC CHIP 0 008 nF 0 5 pF 50 V NP0 TP 1005 2 2203 001259 C389 C CERAMIC CHIP 0 008 nF 0 5 pF 50 V NP0 TP 1005 2 2203 001383 C467...

Page 37: ... 80 20 16 V Y5 V TP 1005 2 2203 005061 C201 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 2 2203 005061 C205 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 2 2203 005061 C206 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 2 2203 005061 C209 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 2 2203 005061 C210 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 2 2203 005061 C211 C CERAMIC CHIP 100 nF 80 20 16 ...

Page 38: ...05 2 2203 005061 C473 C CERAMIC CHIP 100 nF 80 20 16 V Y5 V TP 1005 2 2203 005065 C122 C CERAMIC CHIP 1000 nF 80 20 10 V Y5 V TP 1608 2 2203 005065 C161 C CERAMIC CHIP 1000 nF 80 20 10 V Y5 V TP 1608 2 2203 005065 C166 C CERAMIC CHIP 1000 nF 80 20 10 V Y5 V TP 1608 2 2203 005065 C214 C CERAMIC CHIP 1000 nF 80 20 10 V Y5 V TP 1608 2 2203 005065 C468 C CERAMIC CHIP 1000 nF 80 20 10 V Y5 V TP 1608 2 ...

Page 39: ...V GP TP 2012 2 2404 001105 C360 C TA CHIP 10 uF 20 6 3 V GP TP 2012 2 2404 001105 C364 C TA CHIP 10 uF 20 6 3 V GP TP 2012 2 2404 001105 C380 C TA CHIP 10 uF 20 6 3 V GP TP 2012 2 2404 001105 C428 C TA CHIP 10 uF 20 6 3 V GP TP 2012 2 2404 001151 C116 C TA CHIP 33 uF 20 6 3 V LZ TP 3216 2 2404 001240 C434 C TA CHIP 1 uF 20 10 V TP 1608 2 2703 001229 L339 INDUCTOR SMD 2 2uH 10 1 6 x 0 8 x 0 8 mm 2 ...

Page 40: ...0 09 MHz TP 2 7 V 5mA 2 2809 001242 OSC302 OSCILLATOR VCTC X O 14 4 MHz 2ppm 0 2ppm TP 2 8 V 2 2903 001235 F301 FILTER CERAMIC BP 0 45 MHz 6dB 0 5dB TP 2 2904 001172 F309 FILTER SAW 836 5 MHz 25 MHz 12 5 MHz 1 5 TP 12 5 MHz 2 5dB 2 2904 001172 F310 FILTER SAW 836 5 MHz 25 MHz 12 5 MHz 1 5 TP 12 5 MHz 2 5dB 2 2904 001173 F304 FILTER SAW 881 5 MHz 25 MHz 12 5 MHz 2dB TP 12 5 MHz 3 5dB 2 2904 001270 ...

Page 41: ...HOLDER STH N275 RUBBER BLK 50 3 GH73 00550A RMO HINGE RUBBER STH N275 RUBBER 6 X 4 X T0 4 GRY 50 3 GH74 00556A MPR FLIP BOHO SGH 2400 VINYL 3M 336 46 X 48 5 TRP 3 GH74 00890A MPR KEY DU MMY TAPE STH N275 TESA TAPE 30 6 X 44 3 X T0 2 3 GH74 40107A MCT WINDOW BOHO SH800 3M336 3 GH75 00776A MEC SIDE KEY STH N275 IVR 4 GH72 01750A PMO SIDE KEY TOP STH N275 ABS 4 GH73 00488A RMO SIDE KEY RUBBER STH N27...

Page 42: ... 00800A BO X P UNIT MAIN STH N275 SC300G E KOL 188 X 135 X 72 2 GH69 00815A CUSHION CASE STH N275 HIPS T1 180 X 130 X 76 2 GH69 00842A BAG VINYL BATTERY SGH A300 LDPE T0 06 100 260 TRP 2 GH69 11279A BO X P MASTER CH CHINA SGH 600 SW 3 530 X 510 X 187 Level SEC CODE Design LOC DESCRIPTIONS ...

Page 43: ...change without notice 3 1 3 Exploded View and its Parts List 1 STH N275 Cellular phone Exploded View 9 4 10 13 11 12 9 3 9 2 9 1 12 1 9 5 9 6 12 2 12 3 14 SAM SUNG 1 1 1 1 1 2 1 2 1 9 1 10 1 3 1 4 1 5 1 6 1 8 2 3 1 7 4 5 1 6 7 8 9 1 1 ...

Page 44: ...6A GH70 10633A GH72 01754A 6001 000464 GH43 00294A Description Remark SEC CODE GH75 01166B GH75 01167B GH72 02677B GH68 01360B GH72 01748A GH72 01752A GH72 01745A GH73 00491A GH72 01750A GH73 00488A GH72 01749A GH74 00887A GH75 01030A GH73 00550A 3001 001210 GH82 00064A GH07 00055A GH72 01753A GH73 00489A GH59 00176A GH73 00567A GH97 01777A GH71 00435A GH73 00492A 6001 000464 GH71 00307A 6001 0014...

Page 45: ...roprietary Contents may change without notice 3 3 3 Test Jig GH80 00614A 4 TC GH44 00145G 110V Mexico Colombia Brazil Serial Cable Power Supply Cable 5 RF Test Cable GH39 00092A 6 Cigarette Lighter Adaptor GH44 00091A 7 Test Cable GH39 00090A ...

Page 46: ...SAMSUNG Proprietary Contents may change without notice 4 1 4 STH N275 Block Diagrams 1 STH N275 Base Band Part ...

Page 47: ...SAMSUNG Proprietary Contents may change without notice 4 2 Block diagrams 2 STH N275 Radio Part ...

Page 48: ...SAMSUNG Proprietary Contents may change without notice 4 3 MEMO ...

Page 49: ...SAMSUNG Proprietary Contents may change without notice 5 1 1 STH N275 Main PCB Top Diagram 5 PCB Diagrams ...

Page 50: ...PCB diagrams SAMSUNG Proprietary Contents may change without notice 5 2 2 STH N275 Main PCB Bottom Diagram ...

Page 51: ...e main application program is checking all GPIO inputs periodically When press the END key during program is running the BATT and ON_SW signals will be connected This turns on Q107 Therefore ON_SW_SENSE that is connected to GPIO_0_5 U203_ C13 turned logic high to low The BEC checks this signal main application program enter to POWER OFF mode 1 2 BEC U203 interface The BEC U203 is mainly consist of...

Page 52: ...SAMSUNG Proprietary Contents may change without notice 6 2 Circuit Description Figure2 1 BEC interface and block diagram ...

Page 53: ...s The communication ports includes the UART1 and 2 the JTAG and the SCI The UART1 supports HP equipment interface down loading and data service The UART2 and the JTAG are used for the software debugging The SCI supports the Diagnostic Monitor DM function FLASH ROM inside of U202 The 32Mbit FLASH ROM is used to store code of the application program Using the down loader program this application pro...

Page 54: ...inimize noise pickup The speaker output is amplified internally to enable direct connection to the speaker The second audio path connects to the headset jack The headset microphone and speaker are passed to the IFC s auxiliary input and output respectively The headset jack terminals indicate via the HEADSET_SENSE line when the headset is present as well as when the headset button is pushed via the...

Page 55: ...cy exactly connected to TXCO OSC302_1 Transmitter Interface The U101 receives TX_DATA1 U101_36 synchronized by control signals TX_SYNC TX_CLK U101_33 34 which come from BEC and translate this data as differential I Q signals TX_IN TX_I TX_QN TX_Q U101_61 60 58 57 or MOD signal U101_63 It transport this data to RF modulation part In addition the U101 uses PA_CNT U101_73 TX_PWR U101_68 for controlli...

Page 56: ...dynamic Rx AGC automatic gain controller range the gain of U301 is controlled by PREAMP_G signal coming from U203 resulting in around 30 dB step gain change By checking the RSSI U203 decides to whether turn on U301 or not The amplified signal goes into F304 RF SAW filter in order to suppress the unwanted band data The signal coming out from F304 inflows to the pin 45 1st Rx mixer input of U304 and...

Page 57: ... IF VCO with the internal IF PLL of U304 In the TDMA mode Tx I Q signals coming from U101 are applied to the I Q modulator The modulated signal goes into the Tx AGC of U304 The Tx AGC has the 65 dB dynamic range The output of the Tx AGC enters the upconverter of U304 For the upconversion the local frequency source from OSC301 dual RF VCO is used as well The typical output power of the upconverter ...

Page 58: ...tor Rx AGC Gain step RX_BAT BEC RFIC Receiver power control TX_BAT BEC RFIC Transmitter power control ANALOG_DIG BEC Oscillators Band control 0 Analog 1 Digital LOCK_DET RFIC BEC PLL lock detect status PLL_ON BEC Regulator PLL power control V_RF1 RFIC A_IF_IN RFIC IFC IF comparator input RX_Q RX_QN RFIC IFC Differential analog receive Q channel RX_I RX_IN RFIC IFC Differential analog receive I cha...

Page 59: ...82 470PF R125 86 6K 1 2 2UF C171 C128 100NF 16V Q107 2 3 1 D2 2 G1 5 G2 S1 1 4 S2 U106 D1 6 3 C174 2 VOUT2 VOUT3 3 100NF 7 CE1 CE2 6 5 CE3 GND 4 VDD 8 VOUT1 1 C148 100NF U110 27PF C106 VBAT C147 1UF NC R158 100K VCC R103 VBAT R144 VAUX 2 2K C160 10UF 6 3V 100NF C117 6 3V 10UF C156 10 1 2 5 6 G 3 4 R142 ZD101 1 2 3 4 5 Q106 2 2UF C157 16V C181 470PF 2 R111 57 6K 1 Q108 1 3 NC C152 SPK101 SPKHA 13 1...

Page 60: ...1 A12 NC4 NC5 C4 H1 NC6 NC7 H2 H3 NC8 NC9 H10 F VSS H8 A9 F VSS F WE C3 F WP E3 NC1 A1 H11 NC10 NC11 H12 B10 DQ7 DQ8 F8 F7 DQ9 F CE H7 F OE H9 D4 F RP F VCC D10 F VCCQ A10 C7 DQ13 DQ14 B9 B7 DQ15 DQ2 E9 E10 DQ3 DQ4 C9 C10 DQ5 DQ6 C8 G5 A7 A8 B4 B6 A9 DQ0 F9 F10 DQ1 DQ10 E8 E6 DQ11 DQ12 D7 G4 A17 A18 G3 E5 A19 A2 G8 A3 A20 G7 A3 A4 H5 H4 A5 A6 G6 G9 A1 A10 B5 A4 A11 A12 A8 A7 A13 A14 A6 A5 A15 A16 ...

Page 61: ...0NF C429 27ohm R318 C464 1 5PF L312 4 7nH C378 NC 6 3V 10UF C360 C362 10PF C404 100PF 7 8 RFIN1 6 RFIN2 1 RFOUT1 RFOUT2 3 U301 4 EN1 EN2 5 GND 2 GND R368 C369 100NF 33K R327 150K C419 100NF NC C443 270 R371 15 R346 R384 10 10PF C459 4 7K R343 R313 1K 5 6NF C374 C373 27PF 2 2NF C353 C376 33NF NC R392 C389 8PF L304 2 7nH C367 100NF OUT1 1 3 OUT2 VC1 6 VC2 4 0 R365 U303 2 GND 5 IN C431 100PF C418 R37...

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