Samsung SCH-1900 Especificaciones

C D M A P O R TA B L EPCS T E L E P H O N ESCH-1900CONTENTS1. Specification2. Installation3. NAM Programming4. Circuit Description5. Test Procedure6.

NAM Programming3-2 Samsung Electronics3-2 Setting Up NAMLCD Display Key in FunctionVolume °„ -NAM Programming Menu is displayed3 -choose 'Setup

10-2 Hands-Free Kit Block Diagram

10-3 Desk-Top Rapid Charger Block Diagram

10-4 Cigarette Lighter Adapter Block Diagram

10-5 Travel Charger Block Diagram

Samsung Electronics 4-14. Circuit Description4-1 Logic Section4-1-1 Power SupplyWith the battery installed on the phone and bypressing the PWR key,

Circuit Description4-2 Samsung Electronics4-1-3 Base BandMOBILE SYSTEM MODEM (MSM)The MSM equipped with the INTEL 80186 CPUcore is an important compo

Circuit DescriptionSamsung Electronics 4-34-1-4 Audio SectionTX AUDIO PATHThe voice signal output from microphone isfiltered and amplified by the int

Circuit Description4-4 Samsung Electronics4-2 Receiver SectionLOW NOISE AMPLIFIER (LNA)The low noise amplifier featuring 1.6dB NoiseFigure and 19dB g

Samsung Electronics 4-5Circuit Description4-3 Transmitter SectionPOWER AMP MMICPower Amp MMIC (U407) amplifies signal to besent out to the base stati

Circuit Description4-6 Samsung Electronics4-4 Hands-Free KitHands-free board is largely composed of caradapter circuit and Hands-free circuit.4-4-1

Circuit DescriptionSamsung Electronics 4-74-5 Desk-Top Rapid Charger4-5-1 SMPS1ST SWITCHING CIRCUITThe AC current from AC plug transfers to a high-v

Circuit Description4-8 Samsung Electronics4-5-3 Master and Slave Mode4-5-4 Watch Dog and Reset CircuitMPU U1 Reset pin is active in low state. U4 is

Circuit DescriptionSamsung Electronics 4-94-6 Cigarette Lighter Adapter4-6-1 Funtional Specification SUMMARYThis standard describes on the specifica

Samsung Electronics Co.,Ltd. GH68-60620APrinted in Korea.

Circuit Description4-10 Samsung Electronics4-6-2 Schematic DescriptionDC-DC CONTROLLERKA7500B(U1) is DC-DC Controller. It reads thevoltage difference

Circuit DescriptionSamsung Electronics 4-114-7-1 Input Filter and RegulatorThe AC input converts to a high-voltage DCthrough overcurrent protector F1

Circuit Description4-12 Samsung ElectronicsWhen the battery is being charged, U23B becomeshigh and the output voltage of U24A pin 2 returnsto the refe

5-1 List of Equipment¶UDC Power Supply¶UTest Jig¶UTest Cable¶UCDMA Mobile Station Test Set HP8924C, HP83236B, CMD-80, etc¶USpectrum Analyzer (includ

Test Procedure5-2 Samsung Electronics5-3 Test Procedure5-3-1 Change to Test Mode1. To change the phone from Normal Mode to testMode, You should enter

Test ProcedureSamsung Electronics 5-35-4 Test Command TableCommand No. Test Command Description(OP, AB, RB) 01(1F, 0, 0) T_SUSPEND_I Terminate the n

5-4Samsung ElectronicsTest ProcedureCommand No. Signal. Name Description(OP, AB, RB) 68(C8, 0, 3) T_VBATT1_I Set the low battery position in the sta

Samsung Electronics 6-16. Troubleshooting6-1 Logic Section6-1-1 No Power

Troubleshooting6-2 Samsung Electronics6-1-2 Abnormal Initial Operation (Normal +3.3V voltage source)

Samsung Electronics 6-3Troubleshooting6-1-3 Abnormal Backlight Operation

Samsung Electronics 1-11. Specification1-1 GeneralFrequency RangeTransmitter : 1850 ° ≠1910 MHzReceiver : 1930 ° ≠1990 MHzChannel Bandwidth : 1.23 M

Troubleshooting6-4 Samsung Electronics6-1-4 Abnormal Key Data Input

Samsung Electronics 6-5Troubleshooting6-1-5 Abnormal Keytone

Troubleshooting6-6 Samsung Electronics6-1-6 Abnormal Alert Tone

Samsung Electronics 6-7Troubleshooting6-2 Transmitter Section

Troubleshooting6-8 Samsung Electronics

Troubleshooting6-9Samsung Electronics6-3 Receiver Section

Troubleshooting6-10 Samsung Electronics

Samsung Electronics 6-11Troubleshooting

Samsung Electronics6-12Troubleshooting6-4 Hands-Free Car Kit6-4-1 Abnormal Battery ChargingA: 2.47V °¬ V at U703 pin 1 < 2.98VB: 1.53V °¬ V at

Troubleshooting6-13Samsung Electronics6-4-2 No Power (HHP PWR +5.8V, +13.5V) Supply

1-3 ReceiverRx Sensitivity and Dynamic Range : -104 dBm, FER=0.5% or less(Rate Set 1) : -25 dBm, FER=0.5% or lessConducted Spurious Emission1930 ° ≠

Samsung Electronics6-14Troubleshooting6-4-3 Hands-Free RX Path

Troubleshooting6-15Samsung Electronics6-4-4 Hands-Free TX Path

Samsung Electronics6-16Troubleshooting6-5 Desk-Top Rapid Charger

Troubleshooting6-17Samsung Electronics6-6 Cigarette Lighter Adapter6-6-1 Power Fault

Troubleshooting6-18 Samsung Electronics6-6-2 LED-On Fault

Troubleshooting6-19Samsung Electronics6-6-3 Charge Fault

Troubleshooting6-20 Samsung Electronics6-7 Travel Charger

Samsung Electronics 7-17. Exploded View and its Parts List7-1 Main Set Exploded View7-2 Main Set Parts List7-3 Hands-Free Kit Exploded V

Exploded View and its Parts List7-2 Samsung Electronics7-1 Main Set Exploded View

Exploded View and its Parts ListSamsung Electronics 7-3NO DESCRIPTION SEC. CODE Q'TY REMARK1 FRONT-COVER GH72-41229A 12 CAP-LED GH72-41208A 13 TA

Samsung Electronics 2-12. Installation2-1 Installing a Battery Pack3. To remove the battery pack, release it bypressing the button on the rear of

Exploded View and its Parts List7-4 Samsung Electronics7-3 Hands-Free Kit Exploded View

Exploded View and its Parts ListSamsung Electronics 7-57-4 Hands-Free Kit Parts ListNO DESCRIPTION SEC. CODE Q'TY REMARK1 H/F UPPER HOUSING GH72

Exploded View and its Parts List7-6 Samsung Electronics7-5 Hands-Free Kit Cradle Exploded View

Exploded View and its Parts ListSamsung Electronics 7-77-6 Hands-Free Kit Cradle Parts ListNO DESCRIPTION SEC. CODE Q'TY REMARK1 UPPER HOUSING-C

Exploded View and its Parts List7-8 Samsung Electronics7-7 Desk-Top Rapid Charger Exploded View

Exploded View and its Parts ListSamsung Electronics 7-97-8 Desk-Top Rapid Charger Parts ListNO DESCRIPTION SEC. CODE Q'TY REMARK1 CASE TOP 12

Exploded View and its Parts List7-10 Samsung Electronics7-9 Cigarette Lighter AdapterCIGARETTE LIGHTER ADAPTER ASS'Y :GH44-40012A

Exploded View and its Parts ListSamsung Electronics 7-117-10 Travel ChargerTRAVEL CHARGER ASS'Y : GH44-40011A

Exploded View and its Parts List7-12 Samsung Electronics7-11 Main Set Packing Layout

Exploded View and its Parts ListSamsung Electronics 7-13NO DESCRIPTION SEC. CODE Q'TY REMARK1 GIFT BOX MAIN GH69-10884A 12 CUSHION CASE-MAI

Installation2-2 Samsung Electronics2-3 For Mobile Mount2-3-1 Antenna1. Choose a proper location to install theantenna. ¶UThe center of the roof t

7-14 Samsung ElectronicsExploded View and its Parts List7-13 Hands-Free Kit Packing Layout

7-14 Hands-Free Kit Packing Parts ListExploded View and its Parts ListSamsung Electronics 7-15NO DESCRIPTION SEC. CODE Q'TY REMARK1 GIFT BOX-H/

7-16 Samsung ElectronicsExploded View and its Parts List

Samsung Electronics 9-19. Electrical Parts List9-1 HandsetNO DESCRIPTION SEC. CODE REMARK- Capacitors -C101 Ceramic, Chip, 47nF 2203-001432C102

Samsung Electronics 2-3Installation2-3-3 Hands-Free Box1. Drill holes in a proper location for the hands-free box, attach the mounting bracket by

Electrical Parts List9-2 Samsung ElectronicsNO DESCRIPTION SEC. CODE REMARKC152 Ceramic, Chip, 10nF 2203-000254C153 Ceramic, Chip, 100nF 2203-0001

Electrical Parts ListSamsung Electronics 9-3NO DESCRIPTION SEC. CODE REMARKC340-C342 Ceramic, Chip, 100pF 2203-000233C343 Ceramic, Chip, 10nF 2203

Electrical Parts List9-4 Samsung ElectronicsNO DESCRIPTION SEC. CODE REMARKC469 Ceramic, Chip, 15pF 2203-000386C470 Ceramic, Chip, 1nF 2203-000438

Electrical Parts ListSamsung Electronics 9-5NO DESCRIPTION SEC. CODE REMARKC525 Ceramic, Chip, 1nF 2203-000438C526 Ceramic, Chip, 47nF 2203-001432

Electrical Parts List9-6 Samsung ElectronicsNO DESCRIPTION SEC. CODE REMARK- Coils -L303 Inductor, SMD, 100nH 2703-001172L307, L308 Inductor, SMD,

Electrical Parts ListSamsung Electronics 9-7NO DESCRIPTION SEC. CODE REMARKQ404 Small Signal:AT-32011 0501-002060Q406 Small Signal:MMBT2907A 0501-00

Electrical Parts List9-8 Samsung ElectronicsNO DESCRIPTION SEC. CODE REMARKR137 Chip, 120ohm, 5% 2007-001305R138 Chip, 10Kohm, 5% 2007-000148R140

Electrical Parts ListSamsung Electronics 9-9NO DESCRIPTION SEC. CODE REMARKR304 Chip, 110ohm, 5% 2007-000322R302 Chip, 100ohm, 5% 2007-000138R305

9-10 Samsung ElectronicsElectrical Parts ListNO DESCRIPTION SEC. CODE REMARKR443 Chip, 22Kohm, 5% 2007-000153R444 Chip, 8.2Kohm, 5% 2007-000147R44

Electrical Parts ListSamsung Electronics 9-11NO DESCRIPTION SEC. CODE REMARK- IC's -U101 IC, Data COMM., GEN. 1205-001196U102 IC, ASP, TLV32

Installation2-4 Samsung ElectronicsFigure 2-4 Cable Connections2-3-5 Cables1. Connect the cradle and the hands-free boxwith the data cable. See t

Electrical Parts List9-12 Samsung Electronics9-2 Hands-free Car Kit9-2-1 SCH-1900 HFKNO DESCRIPTION SEC. CODE REMARK- Capacitors -C701, C702 Chip,

Electrical Parts ListSamsung Electronics 9-13NO DESCRIPTION SEC. CODE REMARKC833, C834 0.01U 2203-000260C835, C836 Chip, 0.1U 2203-000204C837 470U,

Electrical Parts List9-14 Samsung ElectronicsNO DESCRIPTION SEC. CODE REMARK- Transistors -Q701-Q703 KSR1104 0504-000129 Q704 MMBT2907A 0501-000462Q7

Electrical Parts ListSamsung Electronics 9-15NO DESCRIPTION SEC. CODE REMARKR767 Chip, 22K 2007-000094R768, R769 Chip, Inductor, 1M 2007-000109R770

Electrical Parts List9-16 Samsung ElectronicsNO DESCRIPTION SEC. CODE REMARKR830 Chip, 10K 2007-000090R832 Chip, 330K 2007-000133R833 Chip, 120K 20

Electrical Parts ListSamsung Electronics 9-179-2-2 SCH-1900 Cradle 9-2-3 Cable & AccessoriesNO DESCRIPTION SEC. CODE REMARK- Capacitors -C871

Electrical Parts List9-18 Samsung Electronics9-3 Desk-Top Rapid ChargerNO DESCRIPTION SEC. CODE REMARK- Capacitors -C1 MP, 250VAC 104-X C2 EL, 4

Electrical Parts ListSamsung Electronics 9-19NO DESCRIPTION SEC. CODE REMARK- Diodes -BD1 Bridge, 600V 1A D1 DO-41, TVS 600W, 160VD2 DO-41, FRD,

NO DESCRIPTION SEC. CODE REMARKR29 Chip, 0805, 1.5ß⁄ JR30 1/4W 1ß⁄, 5% R32 1/4W 1ß⁄, 5% R34 Chip, 0805, 33ß⁄ J R35 Chip, 0805, 47ß⁄ J R36

NO DESCRIPTION SEC. CODE REMARKR76 Chip, 0805, 1ߤ J R77 Chip, 0805, 3ß⁄ F R78 Chip, 0805, 2ß⁄ F R79 Chip, 0805, 6.8ß⁄ F R80 Chip, 0805, 91ß

Enter Lock??????SVC Menu°Ë°È1:PCS Phone#2:GeneralESNB0000000CAI version1VOC13K/8KSO_VOICE_13KSCM00001010Lock Code0000Slot ModeNoSlot Index2MENU, 5,

Electrical Parts List9-22 Samsung ElectronicsNO DESCRIPTION SEC. CODE REMARK- Miscellaneous -FB1 6mm W/LEAD F1 250V 1A, 4.5•ıx15mm LD1, LD2 2-Colo

Samsung Electronics 9-23Electrical Parts List9-4 Cigarette Lighter AdapterNO DESCRIPTION SEC. CODE REMARK- Capacitors -C1 Electrolytic, 100u, 25V,

Electrical Parts List9-24 Samsung ElectronicsNO DESCRIPTION SEC. CODE REMARK- Resistors -R1 Chip, 47K, RC1608J473CSR2, R3 Chip, 1.8K, RC1608J182CS

Electrical Parts ListSamsung Electronics 9-25NO DESCRIPTION SEC. CODE REMARK- IC's -U1 IC, 16pin, KA7500BU2 IC, OP Amp, 8pin, KA2904D/TU3 I

Electrical Parts List9-26 Samsung Electronics9-5 Travel ChargerNO DESCRIPTION SEC. CODE- Capacitors -C1 X-CAP, 100nF, 250V, KNB15300-104 2305-000

Electrical Parts ListSamsung Electronics 9-27NO DESCRIPTION SEC. CODE- Diodes -D1 Diode, Bridge, 600V, 1A, SOP-4, S1NB60 0402-001088D2 Diode, F

Electrical Parts List9-28 Samsung ElectronicsNO DESCRIPTION SEC. CODE- Resistors -R1 R-Metal Oxide, 1W, 470K, 5%, MOR-1, 470K, J 2003-001064R2

Electrical Parts List9-29Samsung ElectronicsNO DESCRIPTION SEC. CODER49 R-Chip, 2012, 4.7Kߟ, 1%, RC2012F4701CS 2007-000868R50 R-Chip, 2012, 000

Electrical Parts List9-30 Samsung ElectronicsNO DESCRIPTION SEC. CODEVA1 Varistor, 198-242V, 3500A, 15°ø18mm, TP, D6221ZOV141RA07 1405-000196Varis