Samsung SCH-1900 Service Manual Download

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C D M A P O R TA B L E
PCS T E L E P H O N E

SCH-1900

CONTENTS

1. Specification

2. Installation

3. NAM Programming

4. Circuit Description

5. Test Procedure

6. Troubleshooting

7. Exploded Views and Parts List

8. PCB Diagrams

9. Electrical Parts List

10. Block & Circuit Diagrams

CDMA PORTABLE PCS TELEPHONE

S E RVICE

Manual

Summary of Contents for SCH-1900

Page 1: ... 1 Specification 2 Installation 3 NAM Programming 4 Circuit Description 5 Test Procedure 6 Troubleshooting 7 Exploded Views and Parts List 8 PCB Diagrams 9 Electrical Parts List 10 Block Circuit Diagrams CDMA PORTABLE PCS TELEPHONE SERVICE Manual ...

Page 2: ...Samsung Electronics Co Ltd GH68 60620A Printed in Korea ...

Page 3: ...iate Frequency Transmitter 130 38 MHz Receiver 210 38 MHz Local Frequency Transmitter 1st FTX 130 38 2nd 260 76 MHz Receiver 1st FRX 210 38 2nd 420 76 MHz TCXO Frequency 19 68 MHz Frequency Stability FRX 80 MHz æ 150 Hz Operating Temperature 30 60 Supply Voltage 4 8 V Current Consumption Average Standby 150 mA Non slot mode Talk 400 mA at 10 dBm Size and Weight Including Standard Battery 114 H ø49...

Page 4: ...ponse Attenuation lower than 1 Rx power 101 dBm Tone power 1 43 dBm Tone power 2 43 dBm Tone 1 offset from carrier æ1 25 MHz Tone 2 offset from carrier æ2 05 MHz Specification 1 2 Samsung Electronics 1 2 Transmitter Waveform Quality 0 944 or more Open Loop Power Control Range 25 dBm 60 5 dBm 41 5 dBm 65 dBm 20 5 dBm 1 5 dBm 104dBm 15 0 dBm 30 0 dBm Minimum Tx Power Control 50 dBm below Closed Loop...

Page 5: ...ack into the rear slot of the charger The lamp marked BAT on the front panel of the charger lights up red 4 If you do not wish to use the phone while charging the battery insert the phone with the battery pack attached into the front slot of the charger The lamp marked PHONE on the front panel of the charger lights up red Press this button to release the battery pack Figure 2 1 Charging The Phone ...

Page 6: ...the antenna vertically connect the antenna cable 3 Tighten the antenna nut fully 2 3 2 Cradle 1 Choose a location where it is easy to reach and does not interfere with the driver s safe operation of the car 2 Separate the two halves of the clamshell by removing the two large slotted screws See the figure 2 2 3 Drill holes and mount the lower half of the clamshell by using the screws 4 Place the cr...

Page 7: ...Hands Free Microphone 1 It is recommended to install the microphone where it is 30 45 cm 12 18 away from the driver Choose the location where is least susceptible to interference caused by external noise sources ie adjacent windows radio speakers etc Normal place is the sun visor 2 Once the microphone has been correctly positioned connect the microphone wire to the MIC jack on the hands free box F...

Page 8: ...y terminal black wire to the vehicle chassis Then connect the battery terminal to the vehicle chassis 4 Connect the other end of the power cable to the PWR jack of the hands free box Notes UIt is recommended to connect the power cable directly to the battery to avoid power noise UMake sure the connection between the battery terminal and the vehicle chassis is made correctly UMake sure the fuse hav...

Page 9: ...displayed 4 digit code to change enter new code OK stores it Slot mode Yes indicates the slot mode Ëor È changes the status OK stores it Slot mode index The higher the longer sleeping time 0 7 to change enter new one OK stores it Samsung Electronics 3 1 LCD Display Key in Function 3 NAM Programming NAM features can be programmed as follows Notes If you enter the NAM program mode each item shows th...

Page 10: ...ne OK stores it CDMA Home system ID current status is displayed Ëor È changes the status OK stores it CDMA foreign SID current status is displayed Ëor È changes the status OK stores it CDMA foreign NID current status is displayed Ëor È changes the system OK stores it first SID written in the list current status is displayed number to change enter new one OK stores it first NID written in the list ...

Page 11: ...phone The major components are as follows UCPU INTEL 80186 core UFROM U112 MBM29LV800T 8MBIT FLASH ROM USRAM U113 KM68V2000BLTI 2MBIT STATIC RAM UEEPROM U109 24LC65 1 SM 64KBIT SERIAL EEPROM CPU INTEL 80186 CMOS type 16 bit microprocessor is used and CPU controls all the circuitry For the CPU clock 27MHz is used FLASH ROM One 8Mbit FROM is used to store the terminal s program Using the down loadin...

Page 12: ...ital to Analog Converter DAC reference clock used in TX mode CHIPX8 ADC reference clock used in CDMA RX mode ADC Interface ADC_CLK pin3 ADC_ENABLE pin1 and ADC_DATA pin2 are required to control the internal ADC in the BBA Data Port Interface Includes the UART Also supports Diagnostic Monitor DM and HP equipment Interface CODEC Interface The MSM outputs 2 048MHz PCM_CLK pin19 and 8KHz CODEC_SYNC pi...

Page 13: ...peaker amplifer U105 to be sent to the speaker unit VOLUME ADJUST Volume can be adjusted up to 8 steps for the user to obtain a proper loudness of received signal 4 1 5 Buzzer Driving Circuitry Buzzer generates alert tone When the buzzer receives the timer signal from the MSM it generates alert tone The buzzer level is adjusted by the alert signal s period generated from the MSM timer 4 1 6 Key To...

Page 14: ...z IF SAW BAND PASS FILTER FOR CDMA IF SAW BPF F303 is used for CDMA system having 1 23 MHz wide band and æ630kHz band width The filter also eliminates the image product generated at the mixer BUFFER Buffer Q311 amplifies the signal from the VCO U305 to be applied to the local input of the down converter U302 when a phase is locked between U304 and U305 The VCO U305 generates the signal having 1750...

Page 15: ... be a constant level The TX IF AGC amp U404 controls power to keep the signal at a desired level Dynamic range is 85 dB up gain 40dB and down gain 45dB POWER SUPPLY REGULATOR The power supply regulator U414 generates the regulated power ANTENNA ANT1 allows signals to send and to receive to from the base station RF BAND PASS FILTER BPF The RF BPFS F402 F403 accept only a specific frequency 1880 æ30...

Page 16: ...Voltage detection circuit Charging circuit is designed to stop charging when the voltage of battery is dropped The voltage of battery is entered to A D converter located in U703 2 Temperature detection circuit The temperature of battery is measured by missing NTC thermistor NTC themistor has a characteristics of Log scale It obtains a linear characteristics by the parallel connection of resistors ...

Page 17: ...y cycle between the switching on and off of Q20 C30 and R34 are parameter to determine the switching frequency of U2 4 5 2 Constant Current Circuit U2 TL494 has two error amps VREF 5V is supplied to INV terminal pin 15 of amp 1 and N INV terminal pin 16 is connected to ground It causes the amp 1 output to be zero In amp 2 the reference voltage 2 0V is supplied to INV terminal pin 15 through R37 an...

Page 18: ...s detected by R45 R46 and NTC and measured as A D value by MPU pin 20 4 5 7 Charging Voltage Detection The charging voltage of the battery is detected by R47 and R48 and measured as A D value by MPU pin 18 The parameters ßEV 0 ßEV and Vmax used for checking charge level are also measured by MPU 4 5 8 Discharging Circuit Discharging is available on the rear port only When MPU pin 14 acknowledges th...

Page 19: ... 250V 2A UCharge Time 3Hrs at 850mAh6Hrs at 1500mAh ENVIRONMENTAL SPECIFICATION UTemperature Operating Temperature 0 to 50 Storage Temperature 20 to 85 UHumidity Operating Humidity 5 to 90 Storage Humidity 5 to 95 FUNCTIONS OF CLA UProtection Circuit Protection Circuit is the circuit against the electrical stress which is occured at unexpected conditions of the source power of CLA unit such as rev...

Page 20: ...mperature at Full Charge may be different according to the temperature around the cellular phone If Full Charge occures at 25 the voltage of U3C to which the battery thermistor is connected is around 2 11V and the voltage of the parallel resistance of Th1 and R18 is about 2 11V PIN 8 of U3C will be HIGH and turn on Q3 if the temperature is up This generates the voltage detected at E1I of U1 around...

Page 21: ...y Charging Without battery installed Q24 turns on It turns LED off The output status of U23 and U24 are as follows OUT A OUT B Q21 Q20 U23 L L U24 L L OFF OFF With battery installed and when the output voltage of U23A pin 3 is smaller than pin 2 the output status of U23 and U24 are as follows Q24 turns off the LED is lit in red OUT A OUT B Q21 Q20 U23 L L U24 H H OFF OFF When the battery voltage o...

Page 22: ...he temperature if the U24A pin 2 is greater than pin 3 the output status of U23 and U24 are as follows OUT A OUT B Q21 Q20 U23 L H U24 L H OFF OFF When charging is completed 20mA trickle current flows through R24 R25 and D21 Q24 turns on and red LD1 turns off Latch circuit operates so that U24A remains in low and trickle current is supplied to the battery The latch is released when AC power turns ...

Page 23: ...Supply UTest Jig UTest Cable UCDMA Mobile Station Test Set HP8924C HP83236B CMD 80 etc USpectrum Analyzer include CDMA test mode HP8596E Samsung Electronics 5 1 5 Test Procedure 5 2 Configuration of Test 5 2 1 Hand Set 5 2 2 Hand Free ...

Page 24: ... 1 Suspend is entered to start test 3 You should enter the following keys 0 9 0 5 2 5 0 7 3 4 7 1 4 7 5 UIf you enter the command 0 9 You can select the channel ex 0 9 X X X X means channel number UThe command 0 7 means Carrier On Carrier Off 0 8 UIf you enter the command 3 4 You can spread the carrier UIf you enter the command 7 1 You can control the power output level Following under bar means A...

Page 25: ... on ST 17 90 0 0 T_STOFF_I Turn off ST 22 91 96 96 T_SNDNAM_I Display and send NAM information 23 95 3 4 T_SNDVERSION_I Display and return S W version 24 9F 7 8 T_SNDESN_I Display and return ESN 25 92 0 0 T_BACKLIGHT_ON_I Turn on the backlight 26 93 0 0 T_BACKLIGHT_OFF_I Turn off the backlight 27 96 0 0 T_LAMP_ON_I Turn on the LAMP 28 97 0 0 T_LAMP_OFF_I Turn off the LAMP 29 9A 0 0 T_REBUILD_I Reb...

Page 26: ...0 0 T_SPEAKER_OFF_I Turn off the speaker path 87 E9 0 0 T_FM_LOOP TEST_I Play a PCM FM loopback 88 EA 3 0 T_TRK_ADK_I TRK LOCAL ADJUST 89 EB 3 0 T_CD_TRK_ADJ_I CDMA TRK LOCAL ADJUST 90 F0 3 0 T_CDMA_LOW_CH_HIPWR_I Setting the volume for LOW CH highpwr 18dBm 91 F1 3 0 T_CDMA_LOWMID_CH_HIPWR_I Setting the volume for LOWMID CH highpwr 18dBm 92 F2 3 0 T_CDMA_MIDDLE_CH_HIPWR_I Setting the volume for MI...

Page 27: ...Samsung Electronics 6 1 6 Troubleshooting 6 1 Logic Section 6 1 1 No Power ...

Page 28: ...Troubleshooting 6 2 Samsung Electronics 6 1 2 Abnormal Initial Operation Normal 3 3V voltage source ...

Page 29: ...Samsung Electronics 6 3 Troubleshooting 6 1 3 Abnormal Backlight Operation ...

Page 30: ...Troubleshooting 6 4 Samsung Electronics 6 1 4 Abnormal Key Data Input ...

Page 31: ...Samsung Electronics 6 5 Troubleshooting 6 1 5 Abnormal Keytone ...

Page 32: ...Troubleshooting 6 6 Samsung Electronics 6 1 6 Abnormal Alert Tone ...

Page 33: ...Samsung Electronics 6 7 Troubleshooting 6 2 Transmitter Section ...

Page 34: ...Troubleshooting 6 8 Samsung Electronics ...

Page 35: ...Troubleshooting 6 9 Samsung Electronics 6 3 Receiver Section ...

Page 36: ...Troubleshooting 6 10 Samsung Electronics ...

Page 37: ...Samsung Electronics 6 11 Troubleshooting ...

Page 38: ...Samsung Electronics 6 12 Troubleshooting 6 4 Hands Free Car Kit 6 4 1 Abnormal Battery Charging A 2 47V V at U703 pin 1 2 98V B 1 53V V at U703 pin 1 2 47V ...

Page 39: ...Troubleshooting 6 13 Samsung Electronics 6 4 2 No Power HHP PWR 5 8V 13 5V Supply ...

Page 40: ...Samsung Electronics 6 14 Troubleshooting 6 4 3 Hands Free RX Path ...

Page 41: ...Troubleshooting 6 15 Samsung Electronics 6 4 4 Hands Free TX Path ...

Page 42: ...Samsung Electronics 6 16 Troubleshooting 6 5 Desk Top Rapid Charger ...

Page 43: ...Troubleshooting 6 17 Samsung Electronics 6 6 Cigarette Lighter Adapter 6 6 1 Power Fault ...

Page 44: ...Troubleshooting 6 18 Samsung Electronics 6 6 2 LED On Fault ...

Page 45: ...Troubleshooting 6 19 Samsung Electronics 6 6 3 Charge Fault ...

Page 46: ...Troubleshooting 6 20 Samsung Electronics 6 7 Travel Charger ...

Page 47: ...e Kit Parts List 7 5 Hands Free Kit Cradle Exploded View 7 6 Hands Free Kit Cradle Parts List 7 7 Desk Top Rapid Charger Exploded View 7 8 Desk Top Rapid Charger Parts List 7 9 Cigarette Lighter Adapter 7 10 Travel Charger 7 11 Main Set Packing Layout 7 12 Main Set Packing Parts List 7 13 Hands Free Kit Packing Layout 7 14 Hands Free Kit Packing Parts List ...

Page 48: ...Exploded View and its Parts List 7 2 Samsung Electronics 7 1 Main Set Exploded View ...

Page 49: ...4 30021A 1 21 SPRING LOCKER GH70 10516A 1 22 STRIP FINGER GH71 10551A 1 23 ANTENNA GH42 10509A 1 24 SCREW 6001 000101 4 25 LABEL ID MAIN GH68 30901C 1 26 STD BATT PACK GH43 10056A 1 27 EXT BATT PACK GH43 10055A 1 28 BAR CODE ESN GH68 30936A 1 29 LABEL R BAR CODE JF68 30572A 1 30 STRIP FINGER L GH71 10548A 4 31 STRIP FINGER M GH71 10549A 1 32 SHIELD STRIP D GH71 10643A 2 33 SHIELD STRIP C GH71 1064...

Page 50: ...Exploded View and its Parts List 7 4 Samsung Electronics 7 3 Hands Free Kit Exploded View ...

Page 51: ... TY REMARK 1 H F UPPER HOUSING GH72 41045A 1 2 LABEL R LOGO H F GH68 30933A 1 3 H F FELT SPEAKER GH74 10521A 1 4 AUDIO SPEAKER 3001 000186 1 5 SCREW 6003 000115 4 6 H F PBA 1 7 HEATSINK H F GH71 10559A 1 8 SCREW 6003 000106 3 9 H F LOWER HOUSING GH72 40626A 1 10 SCREW 6003 000161 4 11 LABEL R ID H F GH68 30932A 1 ...

Page 52: ...Exploded View and its Parts List 7 6 Samsung Electronics 7 5 Hands Free Kit Cradle Exploded View ...

Page 53: ... D GH70 40002A 2 4 EJECTOR SPRING C D GH70 10520A 2 5 LOCKER C D GH72 40013A 2 6 FRAME C D GH72 40011A 1 7 SCREW TAPTITE B BH M2 6 L6 6003 000107 4 8 SCREW TAPTITE BH M2 6 L6 6003 000107 2 9 CRADLE PBA 1 10 SCREW TAPPING BH M2 L6 6002 000342 4 11 HOLDER C D GH72 40622A 1 12 LOWER HOUSING C D GH72 40010A 1 13 SCREW MACHINE BH M3 L8 6001 000556 1 14 LABEL R ID C D GH68 30931A 1 15 CURL CORD 1 16 CRA...

Page 54: ...Exploded View and its Parts List 7 8 Samsung Electronics 7 7 Desk Top Rapid Charger Exploded View ...

Page 55: ...PTION SEC CODE Q TY REMARK 1 CASE TOP 1 2 LABEL LOGO DTC 1 3 HOOK PLATE L 1 4 HOOK PLATE B 2 5 HOUSING BATT 1 6 TAPPING SCREW 4 7 TAPPING SCREW 3 8 MAIN PBA 1 9 INSULATION PAPER 1 10 KNOB 1 11 CASE BOTTOM 1 12 TAPPING SCREW 4 13 FOOT RUBBER 4 14 LABEL DTC 1 15 AC POWER CORD ASSY 1 16 WASHER 4 17 HOOK A 2 ...

Page 56: ...Exploded View and its Parts List 7 10 Samsung Electronics 7 9 Cigarette Lighter Adapter CIGARETTE LIGHTER ADAPTER ASS Y GH44 40012A ...

Page 57: ...Exploded View and its Parts List Samsung Electronics 7 11 7 10 Travel Charger TRAVEL CHARGER ASS Y GH44 40011A ...

Page 58: ...Exploded View and its Parts List 7 12 Samsung Electronics 7 11 Main Set Packing Layout ...

Page 59: ... Samsung Electronics 7 13 NO DESCRIPTION SEC CODE Q TY REMARK 1 GIFT BOX MAIN GH69 10884A 1 2 CUSHION CASE MAIN GH69 20558A 1 3 DESK TOP CHARGER GH90 00611A 1 4 STD BATT PACK GH43 10048A 1 5 MAIN SET 1 7 12 Main Set Packing Parts List ...

Page 60: ...7 14 Samsung Electronics Exploded View and its Parts List 7 13 Hands Free Kit Packing Layout ...

Page 61: ... 7 15 NO DESCRIPTION SEC CODE Q TY REMARK 1 GIFT BOX H F GH69 11069A 1 2 CUSHION CASE H K GH69 20622A 1 3 H F BOX 1 4 CRADLE 1 5 CLAM SHELL MOUNT GH75 10550A 1 6 SUA INSTALL SCREW GH75 10552A 1 7 MTG BRACKET H F GH72 40628A 1 8 H F MIC ASS Y GH96 000736A 1 9 PWR CABLE GH39 10503A 1 10 MANUAL ...

Page 62: ...7 16 Samsung Electronics Exploded View and its Parts List ...

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Page 69: ...7nF 2203 001432 C118 Ceramic Chip 390pF 2203 000836 C119 Ceramic Chip 100nF 2203 000189 C120 Ceramic Chip 22nF 2203 001283 C121 Ceramic Chip 2 2nF 2203 000489 C122 Tantalum Chip 2 2uF 2404 000175 C123 C124 Ceramic Chip 5pF 2203 001437 C125 C126 Ceramic Chip 470pF 2203 000940 C127 Tantalum Chip 10uF 2404 000139 C129 Tantalum Chip 10uF 2404 000139 C130 Ceramic Chip 100nF 2203 000189 C131 Tantalum Ch...

Page 70: ...ip 2 7nF 2203 000530 C308 Ceramic Chip 1nF 2203 000438 C309 Ceramic Chip 10nF 2203 000254 C315 Ceramic Chip 47pF 2203 000995 C316 Ceramic Chip 10nF 2203 000254 C317 Ceramic Chip 100nF 2203 000189 C318 C319 Ceramic Chip 10nF 2203 000254 C320 Ceramic Chip 2 7nF 2203 000530 C321 Tantalum Chip 4 7uF 2404 000232 C322 C323 Ceramic Chip 1nF 2203 000438 C324 Ceramic Chip 100nF 2203 000189 C325 Ceramic Chi...

Page 71: ...58 Ceramic Chip 100nF 2203 000189 C359 Ceramic Chip 27pF 2203 000679 C360 Ceramic Chip 10nF 2203 000254 C361 Ceramic Chip 15pF 2203 000386 C362 Ceramic Chip 10pF 2203 000278 C364 Ceramic Chip 1pF 2203 000466 C401 C402 Ceramic Chip 100pF 2203 000233 C403 Ceramic Chip 6pF 2203 001180 C404 Ceramic Chip 47nF 2203 001432 C405 Ceramic Chip 1nF 2203 000438 C406 Tantalum Chip 2 2uF 2404 000167 C420 Cerami...

Page 72: ...0nF 2203 000254 C501 Tantalum Chip 10uF 2404 000139 C502 Ceramic Chip 10nF 2203 000254 C503 Ceramic Chip 100nF 2203 000189 C504 Tantalum Chip 10uF 2404 000139 C505 Ceramic Chip 100pF 2203 000233 C506 Ceramic Chip 10nF 2203 000254 C507 C508 Ceramic Chip 100nF 2203 000189 C509 Ceramic Chip 100pF 2203 000233 C510 Ceramic Chip 10nF 2203 000254 C511 Ceramic Chip 1nF 2203 000438 C512 C513 Ceramic Chip 1...

Page 73: ...C542 Ceramic Chip 220pF 2203 000585 C543 Ceramic Chip 9pF 2203 001283 C544 Ceramic Chip 33nF 2203 001416 C550 Ceramic Chip 2pF 2203 000696 C551 Ceramic Chip 10nF 2203 000254 Diodes D101 D102 Diode Array KDS226 0407 000122 D103 Diode Array DAN202U 0407 000115 D105 Diode Array DAN202U 0407 000115 D106 D107 Diode Array KDS226 0407 000122 D401 D403 Diode Varactor ISV229 0405 000107 D406 Diode Varactor...

Page 74: ...4 L412 L413 Inductor SMD 2 7nH 2703 000301 L414 Inductor SMD 1nH 2703 000300 L421 Inductor SMD 750nH 2703 000273 L423 Inductor SMD 180nH 2703 000144 L424 L425 Inductor SMD 3 3nH 2703 001258 L431 Inductor SMD 4 7nH 2703 001165 L432 L436 Inductor SMD 47nH 2703 001259 Transistors Q101 Digital RN2104 0504 000172 Q102 Small Signal MMBT2222A 0501 000457 Q103 Digital RN2104 0504 000172 Q104 Q105 Digital ...

Page 75: ...22Kohm 5 2007 000153 R108 Chip 47Kohm 5 2007 000157 R109 Chip 58Kohm 5 2007 000160 R110 Chip 47Kohm 5 2007 000157 R111 Chip 4 7Kohm 5 2007 000143 R112 Chip 75Kohm 5 2007 007021 R113 Chip 1Kohm 5 2007 000140 R114 Chip 10Kohm 5 2007 000148 R116 Chip 150Kohm 5 2007 000164 R117 Chip 100Kohm 5 2007 000162 R118 Chip 150Kohm 5 2007 000164 R119 Chip 30Kohm 5 2007 000156 R120 Chip 82Kohm 5 2007 000161 R121...

Page 76: ...153 R160 Chip 3 3Kohm 5 2007 001325 R161 Chip 10ohm 5 2007 000172 R162 R163 Chip 10Kohm 5 2007 000148 R164 R165 Chip 0ohm 5 2007 000171 R165 R166 Chip 10Kohm 5 2007 000148 R167 Chip 4 7Kohm 5 2007 000143 R168 Chip 39Kohm 5 2007 000831 R169 Chip 10Kohm 5 2007 000148 R170 Chip 3 9Kohm 5 2007 007001 R171 R172 Chip 100ohm 5 2007 000138 R173 Chip 100Kohm 5 2007 000162 R174 Chip 2Kohm 5 2007 000137 R175...

Page 77: ...00ohm 5 2007 000138 R319 Chip 1 2Kohm 5 2007 001319 R330 Chip 56Kohm 5 2007 000159 R333 R334 Chip 8 2Kohm 5 2007 000147 R335 Chip 15Kohm 5 2007 000151 R336 Chip 0ohm 5 2007 000151 R401 Chip 10Kohm 5 2007 000171 R402 Chip 1 8Kohm 5 2007 001320 R403 R405 Chip 10Kohm 5 2007 000148 R406 Chip 39Kohm 5 2007 000831 R411 Chip 100ohm 5 2007 000138 R412 R413 Chip 10Kohm 5 2007 000148 R415 Chip 0ohm 5 2007 0...

Page 78: ...7 Chip 39ohm 5 2007 001295 R458 Chip 470ohm 5 2007 000932 R459 Chip 47Kohm 5 2007 000157 R460 Chip 1Kohm 5 2007 000140 R461 Chip 100Kohm 5 2007 000162 R462 Chip 9 1Kohm 5 2007 007013 R463 Chip 10Kohm 5 2007 000148 R464 Chip 3 3Kohm 5 2007 001325 R465 Chip 39Kohm 5 2007 000831 R466 Chip 1Kohm 5 2007 000140 R467 R470 Chip 0ohm 5 2007 000171 R480 Chip 820ohm 5 2007 001316 R481 Chip 100ohm 5 2007 0001...

Page 79: ...000885 U303 IC AGC Amp 5500 1201 001075 U304 IC PLL Synthesiser 1209 001064 U307 IC Switch Regulator 1203 001201 U401 IC Data COMM GEN 1205 001203 U404 IC AGC Amp 5505 1201 001076 U405 IC Mixer MRFIC1813 1205 001267 U407 IC Power Amp 21007 1201 001077 U410 U411 IC OP Amp 7101 1201 001006 U414 IC Switch Regulator 1203 001201 U415 IC TTL 4W53 0803 003010 Miscellaneous D104 LED Chip RED 0601 000355 I...

Page 80: ...04 000120 C763 Chip 0 1U 2203 000204 C767 Tantalum 2 2U 35V 2404 000292 C768 1000U 25V 2401 000164 C769 Tantalum 10U 10V 2404 000120 C800 C802 Chip 0 1U 2203 000204 C803 Tantalum 4 7U 10V 2404 000234 C804 Tantalum 22U 6 3V 2404 000304 C805 C806 47U 16V 2401 001509 C807 C808 Chip 0 1U 2203 000204 C809 Chip 330P 2203 000778 C810 Chip 0 1U 2203 000204 C811 Tantalum 10U 10V 2404 000120 C812 0 01U 2203...

Page 81: ...0U 10V 2404 000120 C866 Chip 0 1U 2203 000204 Diodes D701 D702 Diode 1SS226 0407 000122 D713 Diode 1N5818 0402 000164 D715 D716 Diode 1N5818 0402 000164 D717 Diode 1SS226 0407 000122 D720 Diode 1N4004 0402 000345 D721 Diode 1SS184 0407 000123 D722 Diode MMBZ5234BL 0403 000283 D725 Diode MMBZ5234BL 0403 000283 D741 D743 Diode 1SS184 0407 000123 Connectors JP701 Connector RP13A 12RC 20PB 3706 000121...

Page 82: ...K 2007 000102 R706 R707 Chip 10K 2007 000090 R708 Chip Inductor 1M 2007 000109 R709 Chip 4 7K 2007 000871 R710 Chip 10K 2007 000090 R711 Chip 12K 2007 000354 R741 Metal 0 5 2003 000113 R742 Chip 1K 2007 000078 R745 Chip 6 2K 2007 001056 R746 Chip 12K 2007 000354 R747 Chip 22K 2007 000094 R748 Chip 5 6K 2007 000086 R750 Chip 6 2K 2007 001056 R751 R752 Chip 18K 2007 000458 R753 Chip 12K 2007 000354 ...

Page 83: ...000103 R794 R797 Chip 10K 2007 000090 R799 Chip 43K 2007 000913 R801 R802 Chip 330K 2007 000133 R803 Chip 5 1K 2007 000965 R804 Chip 56K 2007 000098 R805 Chip 10K 2007 000090 R806 Chip 120K 2007 000103 R807 Chip 10K 2007 000090 R808 R809 Chip 100K 2007 000102 R810 Chip 5 1K 2007 000965 R811 Chip 220K 2007 000106 R812 Chip 47K 2007 000097 R813 Chip 1K 2007 000078 R814 Chip 2 2K 2007 000124 R815 Chi...

Page 84: ...7 000092 R848 Chip 5 1K 2007 000965 R849 Chip 100K 2007 000102 R850 Chip 22K 2007 000094 R861 R863 Chip 330K 2007 000133 R864 Chip 100 2007 000074 IC s U703 IC TMP91P640 10 0903 000123 U704 IC LP2951ACM 1203 000148 U705 U706 IC LM2576 1203 000185 U707 U709 IC LM2904D 1201 000181 U801 IC LM2902D 1201 000239 U802 IC MC34118DW 1204 000282 U803 IC MC14053BD 1001 000171 U804 IC TDA1010 1201 000386 U805...

Page 85: ...S2L2 EF 3711 002036 JP874 Connector ESQ 103 44 T D 3711 002036 Transistor Q871 Q872 Digital KAR1104 0504 000129 Resistors R871 MCRO3EZHJ221T 3711 002036 R874 MCRO3GEZH123T 2007 000354 R875 R876 MCRO3EZHJ331T 3711 002036 R877 MCRO3EZHJ102T 3711 002036 Miscellaneous TH871 NTH300XQ103E01 0604 000118 U871 SG 215 0604 000166 NO DESCRIPTION SEC CODE REMARK Antenna Gold GH96 00733A Microphone GH96 00736 ...

Page 86: ...p 0805 474Z C12 CHIP 0805 474Z C13 C14 CHIP 0805 102J C22 EL 25V 470ßfi C23 EL 16V 680ßfi C24 CHIP 0805 104K C25 EL 25V 330ßfi C26A C26B MP 250VAC 332 Y C27A C27B MP 250VAC 332 Y C28A C28B Chip 0805 474Z C30 Chip 0805 102J C31 C37 Chip 0805 104K C40 Chip 0805 104K C41 EL 16V 1ßfi C42 EL 10V 100ßfi C43 Chip 0805 104K C44 EL 16V 4 7ßfi C45 C47 Chip 0805 104K C50 EL 25V 330ßfi C51 Chip 0805 102J C52 ...

Page 87: ...23 D42 SBD 40V 2A D43 D45 SOT 23 80V 100mA D80 D81 SOT 23 Transistors Q3 NPN SOT 23 50V 100mA Q20 P CH SO 8P Dual 30V 3 5A 85mV Q21 PNP SOT 23 60V 60mA Q22 NPN SOT 23 50V 100mA Q23 Q24 PNP SOT 23 50V 100mA Q30 PNP SOT 23 60V 60mA Q31 Q32 NPN SOT 23 50V 100mA Q33 Q34 PNP SOT 23 60V 60mA Q36 Q37 PNP SOT 23 50V 100mA Q38 NPN SOT 23 50V 100mA Q39 NPN TO 92 40V 500mA DARLINGTON Resistors R1 Chip 0805 1...

Page 88: ...44 Chip 0805 220ßŸ J R45 Chip 0805 4 7ß F R46 Chip 0805 18ß F R47 Chip 0805 33ß F R48 Chip 0805 22ß F R50 R53 Chip 0805 560ßŸ J R54 Chip 0805 4 7ß F R55 Chip 0805 220ßŸ J R56 Chip 0805 18ß F R57 Chip 0805 1 2ß F R58 Chip 0805 4 7ß F R60 R62 Chip 0805 2 2ß J R63 Chip 0805 10ß J R65 Chip 0805 10ß J R66 2W 15ßŸ 5 R67 Chip 0805 1 5ß F R68 Chip 0805 2 2ß J R69 Chip 0805 100ßŸ J R70 R72 1 4W 1ß 5 R74 Ch...

Page 89: ...Chip 0805 33ß F R88 Chip 0805 22ß F R90 Chip 0805 5 1ßŸ J R91 Chip 0805 10ß J R92 Chip 0805 1ß J R93 Chip 0805 47ß J R94 Chip 0805 1ß J R95 Chip 0805 150ß J R96 Chip 0805 100ß J R101 R102 1 4W 4 7ß R103 R104 Chip 0805 22ßŸ J RX1 RX2 Chip 0805 10ß J IC s U1 20 DIP MPU U2 U3 SO 16P P W M U4 SO 8P Low Drop Voltage REG U5 TO 92 Shunt REG U6 SO 16P Analog S W U7 SO 8P Dual OP AMP U0 TO 220 10 20W off L...

Page 90: ...7 5TS 7uH L21 L22 N Mode 220uH PCB 70x112 5x1 2t PC1 35V 50mA Photo Coupler SW1 Switch KPT1105S Switch KNOB Conn Wafer 3 PIN TH1 10K 25 TNR1 300V 3KA Surge Absorber T1 EPC19 TYPE X1 4MHz 0 5 Case Top Case Bottom Battery Housing Contact Ass y Hook Ass y Right Hook Ass y Left Label Bumpon 10 Gate Label Insulation Sheet Screw BHT 2 ø3 ø5 Screw BHT 2 ø2 6 ø6 Screw BHT 2 ø2 6 ø12 AC Cord ...

Page 91: ...Tantalum Chip 4 7u 6 3V TCSCS0J475MAAR C11 Chip 0 1u CL21B104KNER C12 Tantalum Chip 4 7u 16V TCSCS1C476MBAR C13 Tantalum Chip 4 7u 6 3V TCSCS0J475MAAR Diodes D1 Diode 1N4004 D2 Diode Zener 1N5818 D3 Diode 1N4004 D4 Diode Zener 1N5818 D5 Diode Chip SDS2838 D6 LED Green SM3511 D7 Diode Chip SDS2838 D8 Diode Zener 1N5818 Filter F1 F2 Fuse 250V 2A 41MS Connectors J3 Connector 5pin GIL S 5P S2T2 EF Coi...

Page 92: ...C1608J331CS R14 Chip 3 3K RC1608J332CS R15 Chip 510 RC1608J511CS R16 Chip 13K RC1608J133CS R17 Chip 4 3K RC1608F432CS R18 Chip 15K RC1608F153CS R19 Chip 1K RC1608J331CS R21 Chip 270 RC1608J271CS R22 R23 Chip 1K RC1608J102CS R24 Chip 100K RC1608J104CS R25 Chip 200K RC1608J204CS R26 Chip 4 7K RC1608F472CS R27 Chip 12K RC1608F123CS R28 Chip 47K RC1608F473CS R29 Chip 100K RC1608J104CS R31 Chip 62K RC1...

Page 93: ...in KA7500B U2 IC OP Amp 8pin KA2904D T U3 IC OP Amp 14pin KA2902D T Miscellaneous TH1 Thimster TH310H36GBNI Curl Ass y 5pin GND Harness Upper Housing Lower Housing Fuse Cover Fuse Holder Fuse Plate Outer Spring Power Contact Spring CLC Label CLC Taptite Screw Poly Box Carton Box Corrugated PAD ...

Page 94: ...2401 002568 C26 Cap Chip 2012 104 K X7R CL21B104KB A NC 2203 000206 Cap Chip 2012 104 K X7R MCH215 2 C104KK 2203 000206 C27 Cap Elec 1uF 50V 85 4 ø7 CESSM1H1ROM 2401 000596 Cap Elec 1uF 50V 85 4 ø7 SRA1HVB010M 2401 000593 C28 Cap Elec 100uF 16V 85 6 3 ø7 CESSM1C101M 2401 000250 Cap Elec 100uF 16V 85 6 3 ø7 SRAICV101M 2401 000250 C29 C30 Cap Chip 2012 104 K X7R CL21B104KB A NC 2203 000206 Cap Chip ...

Page 95: ...RT500 3601 001035 LED LD1 LED RED GRN Dual 5 ø2 AL 225RGW 0601 001107 LED RED GRN Dual 5 ø2 SMW 0523M 0601 001107 LED RED GRN Dual 5 ø2 SAM5280 0601 001107 Transistors Q1 FET MOS N TO 220 500V 8A IRF840 0505 000135 Q2 TR NPN SOT 23 60V 600mA KST2222ATF 1P 0501 000457 TR NPN SOT 23 60V 600mA MMST2222A TR NPN SOT 23 60V 600mA KTN2222AS Q20 FET MOS P I PAK 50V 3A 2SJ132 0505 001105 FET MOS P I PAK 50...

Page 96: ... 5 MCR10EZHUJ912 R29 R Chip 2012 20KßŸ 5 RC2012J203CS 2007 000546 R30 R Chip 2012 30KßŸ 1 RC2012F3002CS 2007 000735 R31 R Chip 2012 1KßŸ 1 RC2012F1001CS 2007 000465 R32 R Chip 2012 430ßŸ 1 RC2012F431CS 2007 000902 R33 R Chip 2012 10KßŸ 1 RC2012F1002CS 2007 000297 R34 R Chip 2012 20KßŸ 5 RC2012J203CS 2007 000546 R35 R36 R Chip 2012 10KßŸ 1 RC2012F1002CS 2007 000297 R37 R Chip 2012 1KßŸ 1 RC2012F100...

Page 97: ...12J202CS 2007 000671 R61 R Chip 2012 1 5KßŸ 1 RC2012F1501CS 2007 000238 R62 R Chip 2012 000ßŸ 5 RC2012J000CS 2007 000029 R64 R Chip 2012 39KßŸ 1 RC2012F3902CS 2007 000827 R Chip 2012 39KßŸ 1 MCR10EZHUF3902 IC s U20 IC Regulator 5V 100mA TO 92 LE50CZ 1203 001224 IC Regulator 5V 100mA TO 92 LP2950CZ 5 0 U21 IC Linear 35V 100mA TO 92 KA431Z 1203 000187 U22 IC OP Amp 28V 0 15uA Dual DIP 8P KA358A 1201...

Page 98: ... 3 ML71 00291E Case Ass y Top Cover Gate Label Plug Ass y 1900 TC C ML72 00239V Case Ass y Bottom Bottom Gate Label Ass y 1900 TC B ML72 00239W PCB FR 4 1 2t 1oz 46 5 ø132 1900 TC ML41 00224W Screw TAP PH 2 6 ø10 BLK 6002 001014 Packing Box SW A 518 ø341 ø260 ML69 0007A Packing NIL PAD SW A 513 ø336 ML69 00028A Packing C P A SW A 513 ø78 ML69 00099E Packing C P B SW A 336 ø78 ML69 00099F Packing C...

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Page 100: ...10 2 Hands Free Kit Block Diagram ...

Page 101: ...10 3 Desk Top Rapid Charger Block Diagram ...

Page 102: ...10 4 Cigarette Lighter Adapter Block Diagram ...

Page 103: ...10 5 Travel Charger Block Diagram ...

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Samsung SCH-1900, Service Manual

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Summary of Contents for SCH-1900

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