Samsung SCH-A399 Service Manual
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Samsung SCH-A399 Service Manual

Samsung SCH-A399 Service Manual

Portable cellular telephone
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ELECTRONICS
SERVICE
PORTABLE CELLULAR TELEPHONE
PORTABLE CELLULAR
TELEPHONE
SCH-A399
Manual
CONTENTS
1. Exploded Views and Parts List
2. PCB Diagrams
3. Electrical Parts List
4. Block Diagrams
5. Trouble shooting
6. Circuit Diagram

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Summary of Contents for Samsung SCH-A399

  • Page 1 PORTABLE CELLULAR TELEPHONE ELECTRONICS SCH-A399 SERVICE Manual PORTABLE CELLULAR TELEPHONE CONTENTS 1. Exploded Views and Parts List 2. PCB Diagrams 3. Electrical Parts List 4. Block Diagrams 5. Trouble shooting 6. Circuit Diagram...
  • Page 2 ELECTRONICS Samsung Electronics Co.,Ltd. Printed in Korea 1/2002 Rev 1.0 GH68-02629A...

  • Page 3: Table Of Contents

    1. Exploded Views and Parts List Main Main Parts List Travel Adapter Travel Adapter Parts List Battery Charger Test Jig 1-6-1 Test Jig normal EAR Microphone Data Kit 2. PCB Diagrams Main Top Main Bottom 3. Electrical Parts List Main Parts List Top Main Parts List Bottom 4.
  • Page 4 1. Exploded Views and Parts List 1-1 Main (SCH-A399) 14-1 14-2 Exploded Views and Parts List...

  • Page 5: Main Parts List

    1-2 Main Parts List Location No. Description SEC CODE Remark WATCH WINDOW LCD GH72-03591A FOLDER UPPER GH75-01440A CON TO CON GH59-00289A GH07-00128A SPEAKER 3001-001255 MOTOR ASS`Y GH31-00022A WINDOW RUBBER GH73-00750A FOLDER LOWER GH75-01441A WINDOW LCD GH72-03592A SCREW 6001001429 SCREW CAP GH74-00611B FRONT COVER GH75-01442A...

  • Page 6: Travel Adapter

    1-3 Travel Adapter 1-4 Travel Adapter Parts List TYPE SEC CODE REMARK GH44-00171A CHINA 1-5 Battery Charger Battery Charger GH39-00274A Exploded Views and Parts List...

  • Page 7: Test Jig

    1-6 Test Jig TEST JIG GH80-10502C TEST JIG CABLE GH39-00122A RF JIG CABLE GH39-00077A Exploded Views and Parts List...

  • Page 8: Normal Ear Microphone

    1-6-1 Test Jig POWER SUPPLY 8924 or 8285 WIRELESS COMMVNCATIONS TEST SET RF JIG CABLE 232 CABLE TEST JIG CABLE 1-7 Normal EAR Microphone Wearable EAR Microphone GH96-00922B 1-8 Data Kit DATA KIT Exploded Views and Parts List...
  • Page 9 2. PCB Diagrams 2-1 Main Top R312 R306 TH300 Q300 R308 R304 R307 R255 PWR/END ZD215 SHAP C100 C403 U408 U400 R130 C161 C401 C157 C158 R162 C156 Q101 U199 C159 R163 R216 R164 C154 DOWN R212 R225 R226 U253 R222 C204 R229...
  • Page 10 2-2 Main Bottom R121 C439 R417 R425 C436 R421 R457 R414 R281 R405 C404 L407 C247 R240 C415 R282 C233 D402 C246 U429 C232 R401 R433 C452 V201 R241 C408 C414 R283 C231 R242 C244 C230 R243 Q301 R430 C444 C237 R244 C236...

  • Page 11: Electrical Parts List

    GH41-00228A SCH-A399,POLYIMIDE,1L,-,-,10.95X13.25 GH42-00148A SCH-A399 ANTENNA,SCH-A399,824~894MHZ,-,50OHM GH43-00457A 1UF383450P(550MAH),SCH-A399,LI-ION,550MAH GH43-00458A USO63450G3,SCH-A399,LI-ION,900MAH,-,4.2V,-,3.7V GH44-00171A TA014G,SGH-N288,AC/DC,-,-,-,-,85-264VAC,50/60Hz GH44-00274A DCH073BLC,SCH-A399,DC/DC,-,-,-,STD,5.0V,-,-,4.2V GH59-00286A SCH-A399,OBG-18L44-C33,-,MIC,FPC,-,-,-,7.75X5.8MM GH59-00313A SCH-A399,SCH-A399 METAL DOME ,-,METAL DOME GH59-00315A SCH-A399,SCH-A399 DOME SHEET,SCH-A399,SCH-A399 DOME SHEET GH68-02588A SCH-A399,POLYESTER,T0.05,51.3,33.3,-,SIL,-,-,- GH73-00744A SCH-A303,CR RUBBER,5.28X3.57,L/GRY,80,- GH73-00803A SCH-X350,RUBBER,-,D/GRY,50,- GH74-01161A SCH-X120,VINYL,T0.1,-,- GH74-01432A SCH-X200,VINYL,51X81.8XT0.08,TRP,- GH75-00223J SGH-2300,-,L/GRY...
  • Page 12 Level SEC CODE Design LOC DESCRIPTIONS 0504-000167 Q410 RN1102,NPN,100MW,10K/10K,SSM,TP 0504-000168 Q409 RN1104,NPN,100MW,47K/47K,SSM,TP 0504-000172 Q202 RN2104,PNP,100MW,47K/47K,SSM,TP 0504-001016 Q405 DTA114EE,PNP,150MW,10K/10K,SSM,TP 0505-001119 Q400 2SK2685,P,6V,20mA,-,100mW,CMPA 0505-001165 Q407 SI3443DV,P,-20V,+-3.5mA,65mohm 0506-000143 U203 UMD3N,NPN/PNP,2,150mW,SC-88,TP,30- 0506-001004 Q100 UMC5N,NPN/PNP,2,50V,-,-100mA,3 0506-001004 Q301 UMC5N,NPN/PNP,2,50V,-,-100mA,3 0506-001004 U401 UMC5N,NPN/PNP,2,50V,-,-100mA,3 0601-001226 LED200 CHIP,RED,1.2x0.8mm,660nm 0601-001565 ZD200 CHIP,GRN,1.1X0.8MM,520NM 0601-001565...
  • Page 13 Level SEC CODE Design LOC DESCRIPTIONS 2007-000138 R216 100ohm,5%,1/16W,DA,TP,1005 2007-000138 R222 100ohm,5%,1/16W,DA,TP,1005 2007-000138 R223 100ohm,5%,1/16W,DA,TP,1005 2007-000138 R226 100ohm,5%,1/16W,DA,TP,1005 2007-000138 R429 100ohm,5%,1/16W,DA,TP,1005 2007-000139 R407 220ohm,5%,1/16W,DA,TP,1005 2007-000140 R118 1Kohm,5%,1/16W,DA,TP,1005 2007-000140 R119 1Kohm,5%,1/16W,DA,TP,1005 2007-000140 R135 1Kohm,5%,1/16W,DA,TP,1005 2007-000140 R136 1Kohm,5%,1/16W,DA,TP,1005 2007-000140 R150 1Kohm,5%,1/16W,DA,TP,1005 2007-000140 R151 1Kohm,5%,1/16W,DA,TP,1005 2007-000140...
  • Page 14 Level SEC CODE Design LOC DESCRIPTIONS 2007-000156 R163 30Kohm,5%,1/16W,DA,TP,1005 2007-000157 R425 47Kohm,5%,1/16W,DA,TP,1005 2007-000157 R426 47Kohm,5%,1/16W,DA,TP,1005 2007-000162 R110 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R124 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R125 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R132 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R134 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R146 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R155 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R161 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R165 100Kohm,5%,1/16W,DA,TP,1005 2007-000162...
  • Page 15 Level SEC CODE Design LOC DESCRIPTIONS 2007-001308 R280 200ohm,5%,1/16W,DA,TP,1005 2007-001313 R309 330ohm,5%,1/16W,DA,TP,1005 2007-001317 R341 910ohm,5%,1/16W,DA,TP,1005 2007-001319 R133 1.2Kohm,5%,1/16W,DA,TP,1005 2007-001319 R162 1.2Kohm,5%,1/16W,DA,TP,1005 2007-001319 R240 1.2Kohm,5%,1/16W,DA,TP,1005 2007-001319 R241 1.2Kohm,5%,1/16W,DA,TP,1005 2007-001319 R242 1.2Kohm,5%,1/16W,DA,TP,1005 2007-001319 R243 1.2Kohm,5%,1/16W,DA,TP,1005 2007-001319 R244 1.2Kohm,5%,1/16W,DA,TP,1005 2007-001319 R245 1.2Kohm,5%,1/16W,DA,TP,1005 2007-001319 R246 1.2Kohm,5%,1/16W,DA,TP,1005 2007-001319...
  • Page 16 Level SEC CODE Design LOC DESCRIPTIONS 2007-007771 R249 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R250 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R251 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R274 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R313 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R321 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R324 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R337 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R339 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R440 0OHM,5%,1/16W,DA,TP,1005 2007-007791 R227 9.1KOHM,1%,1/16W,DA,TP,1005 2203-000233 C123 0.1nF,5%,50V,NP0,TP,1005 2203-000233...
  • Page 17 Level SEC CODE Design LOC DESCRIPTIONS 2203-000254 C118 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C121 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C125 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C131 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C136 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C138 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C158 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C217 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C222 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C226 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C301 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C305 10nF,10%,16V,X7R,TP,1005,- 2203-000254...
  • Page 18 Level SEC CODE Design LOC DESCRIPTIONS 2203-000438 C334 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C337 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C352 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C354 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C371 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C401 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C408 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C421 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C432 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C434 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C441 1nF,10%,50V,X7R,TP,1005,- 2203-000466 C345 0.001nF,0.25pF,50V,NP0,TP,1005 2203-000489...
  • Page 19 Level SEC CODE Design LOC DESCRIPTIONS 2203-001153 C229 0.068nF,5%,50V,NP0,TP,1005 2203-001153 C412 0.068nF,5%,50V,NP0,TP,1005 2203-001201 C400 0.007nF,0.5pF,50V,NP0,TP,1005 2203-001239 C336 0.082nF,5%,50V,NP0,TP,1005 2203-001239 C341 0.082nF,5%,50V,NP0,TP,1005 2203-001239 C418 0.082nF,5%,50V,NP0,TP,1005 2203-001259 C338 0.008nF,0.5pF,50V,NP0,TP,1005 2203-001383 C425 0.0005nF,0.25pF,50V,NP0,TP,1005 2203-001389 C142 12nF,10%,50V,X7R,TP,1608,1.6mm 2203-001389 C143 12nF,10%,50V,X7R,TP,1608,1.6mm 2203-001405 C139 22nF,+80-20%,25V,Y5V,TP,1005 2203-001405 C150 22nF,+80-20%,25V,Y5V,TP,1005 2203-001405...
  • Page 20 Level SEC CODE Design LOC DESCRIPTIONS 2203-005061 C205 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C207 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C218 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C219 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C220 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C252 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C304 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C313 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C315 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C351 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C357 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C429 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061...
  • Page 21 Level SEC CODE Design LOC DESCRIPTIONS 2404-001151 C147 33UF,20%,6.3V,LZ,TP,3216 2404-001231 C453 47uF,20%,6.3V,GP,TP,3718 2703-001409 L409 12nH,10%,1x0.5x0.5mm 2703-001409 L413 12nH,10%,1x0.5x0.5mm 2703-001514 L415 68nH,5%,1.8x1.12x1.02mm 2703-001708 L310 5.6nH,10%,1.0x0.5x0.5mm 2703-001722 L411 18nH,5%,1.0x0.5x0.5mm 2703-001726 L306 27nH,5%,1x0.5x0.5mm 2703-001726 L307 27nH,5%,1x0.5x0.5mm 2703-001727 L400 22nH,5%,1x0.5x0.5mm 2703-001727 L421 22nH,5%,1x0.5x0.5mm 2703-001733 L420 8.2nH,5%,1x0.5x0.5mm 2703-001752...
  • Page 22 SCH-X120,VINYL,T0.1,-,- GH74-01162A SCH-X120,VINYL,T0.1,-,- GH74-01432A SCH-X200,VINYL,51X81.8XT0.08,TRP,- GH74-01783A SPH-A330,PORON,PI9XT0.5,BLK,-,-,-,- GH74-01784A SPH-A330,EMI MESH,PI12XT0.3,GRY,-,-,-,- GH74-01791A SPH-A330,EMI MESH,10X4XT2.0,GRY,-,-,-,- GH74-01795A SPH-A330,PORON,20.0X5.0XT3.0,BLK,-,-,-,- GH74-01796A SPH-A330,EMI MESH,11.0X4.0XT2.0,BLK,-,-,-,- GH74-02215A SCH-A399,EMI MESH,8.50X5XT0.3,BLK,-,-,-,- GH74-02216A SCH-A399,PORON,5X5XT3.0,BLK,-,-,-,- GH74-02217A SCH-A399,PORON,27X5XT3.0,BLK,-,-,-,- GH74-02219A SCH-A399,VINYL SHEET,23X6XT0.1,GRY,-,-,-,- GH74-02333A SCH-A399,EMI MESH,11X2XT2,GRY,-,-,-,- GH74-02374A SCH-A399,PC SHEET,PI4.6XT0.3,SIL,-,-,-,- GH75-01440B SCH-A399,-,PC,-,SIL,-,-,- GH71-00647A -,SPH-A450,ZN,T2.18,36.1,28.36,-,-,-,SIL,- GH72-03160B SCH-A399,PC,SIL,-,-,-,-,-,-...
  • Page 23 SCH-A399,EPDM,3.93X31.0XT1.5,BLK GH74-02090A SCH-A399,EPDM,10.5X33.5XT1.5,BLK GH74-02094A SCH-A399,SPONGE,17.5X21.0XT0.5,GRY GH74-02218A SCH-A399,VINYL SHEET,5X3.50XT0.1,GRY GH99-02625A SCH-A399,CUH,CHNA GG68-10705A SP-R912,CRP,65.0x95.0,-,ORG GH68-00662B SCH-3500,WHITE POLYESTER,67X41,-,WHT GH68-01778A SGH-A100,ART,100G,250,100,-,WHT GH68-02549A SCH-A399,UNICOM HORIZON,CHINESE,CHNA GH68-02558A SCH-A399,CHINA UNICOM HORIZON,CHINESE,CHNA GH68-10642A SH-700,ART,60.0x40.0,T0.1,WHT GH69-00842A SGH-A300,LDPE,T0.06,80,170,TRP,- GH69-00843A SGH-A300,LDPE,T0.06,100,260,TRP,- GH69-01062A SCH-A399,PS,-,-,192X132X76 GH69-01065A SCH-A399,IVORY#300,-,-,-,-,135X79X191 GH69-11279A CHINA,SGH-600,SW-3,530X510X187 3-13 Electrical Parts List...
  • Page 24 ✶✮✶✸...

  • Page 25: Block Diagrams

    4. Block Diagrams Block Diagrams...

  • Page 26: Trouble Shooting

    5. Trouble Shooting 5-1 Logic Section 5-1-1 No Power Press PWR button Check Battery Q407 and its neighboring circuits "H" level outputted from U406 Pin 2 ? U408 Pin 5=2.8V? Check U408 and its neighboring circuits Check U409 and its neighboring circuits. U409 Pin 2=2.8V? Check U411, U412, U413, U414 U406 Pin 3=2.8V?
  • Page 27 5-1-2 Abnormal initial operation (Normal +2.8V voltage source) Press PWR Key TCXO CLK Check VCTCXO Output. applied to U140 pin2 TCXO CLK Check U140 and its neighboring signal outputted from circuits. Replace if required. U140 pin4? RAM_CS signal outputted from U100 Check MSM board U100 pin P14,N4? CHIP X8 CLK...
  • Page 28 5-1-3 Abnormal Backlight Operation Press any button on the phone 'H' level outputted Check R283, C244, U100. Replace if required. from U100 pin J4? Check IC 1, CN1 and neighboring circuits. 'H' level to IC 1 pin 5 Replace if required. on the LOC Board Trouble shooting...
  • Page 29 5-1-4 Abnormal Key Data Input Check initial status. Scanning signals outputted from U100 Check MSM board U100 scan 0~5 Keysense Replace the Keyboard. Normal Key data input? Trouble shooting...
  • Page 30 5-1-5 Abnormal Key tone Abnormal keytone CLK waveform Check U100. outputted U100 pin L16,M17 U253, U254 Replace U100 pin 6 'L' Level ? CLK waveform applied to CN255 Check CN255 pin 10, 11 CLK waveforom outputted Check CN1 (LCD B'd) from CN1 p 11, 12 (LCD B'd) Trouble shooting...

  • Page 31: Receiver Section

    5-2 Receiver Section Start CDMA mode Normal CDMA Check CDMA Rx path. SVC&ROAM OK? Check Transmitter. Setup CDMA call. OK? Measure CDMA FER. Normal CDMA RF? Trouble shooting...

  • Page 32: Transmitter Section

    5-3 Transmitter Section Ablormal Transmitter section. Check RFT3100 pin 19 Check PLL Check RFT3100 RF_LO Level RF OUT Leve l (-3dBm) CDMA:+8dBm Check PA(U301) Output Level CDMA:+25dBm Trouble shooting...
  • Page 33 6. Circuit Diagrams 6-1 Rx Circuit Diagram V_SYNTH CN400 5206 C453 47uF LNA_GAIN 6.3V U400 U401 2SC4081BRT106 UMC5NTL L400 22nH C401 R400 R401 C400 L402 PDM1 C402 L403 PA_R0 47PF 10nH R402 C403 R404 R456 L404 C404 L405 C405 F402 C406 47NF 1.8K...
  • Page 34 6-2 Tx Circuit Diagram V_VDDM V_RFTX V_RFTXD L300 BLM10A102SGPT V_RFTX V_RING V_RING V_IFTANK C300 C301 100PF R300 C302 10NF 2.2UF Q300 2SC4617 L314 C303 R301 C304 U300 R303 BLM10A102SGPT L313 LMV711 TX_AGC_ADJ R304 100NF BLM10A102SGPT 7.5K,1% Q_OUT U301 Q_OUT_N SHUT R306 C305 R307...

  • Page 35: Misc Circuit Diagram

    SAMSUNG SPK- Drawn by A(2) R234 UIM_PWR_EN_N AXK6F24345J C.K.KIM LCD_CS2_N R&D CHK Size C252 TITLE 100NF SCH-A399 R-UIM LCD_CS_N DOC CTRL CHK LWR_N SCH-A399_REV2.0-UIM MFG CTRL CHK Changed by Date Changed Time QA CHK Drawing Number Sheet2 C242 C243 C244...

  • Page 36: Logic Circuit Diagram

    MIC+ MOTOR_EN R165 100K SCAN(2) AUDIO_CTRL LED_EN V_MSMP C152 22NF SCAN(3) R167 Engineer SCAN(4) 2.2K H.G.KIM C153 U199 SAMSUNG 22NF A3210ELH Drawn by EAR_MIC+ R162 1.2K VCC 1 C.K.KIM REED_SW H_TX_AUDIO C156 R163 R&D CHK Size TITLE C154 100NF C158...

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