Samsung SCH-470 Especificaciones

CONTENTS1. General Introduction2. Specification3. NAM Programming4. Data Tr a n s f e r5. Circuit Description6. Exploded View and Its Parts List7. PCB

NAM Programming3-4 Samsung ElectronicsLCD Display Key in Function¶Sor ¶H CDMA foreign System ID. STO Enables the phone to allow mobile terminated call

Samsung Electronics 3-5NAM ProgrammingLCD Display Key in FunctionNAM Program1:General2:Setup NAM13 -choose 'NAM2’.3-3 Setting Up NAM2LCD Display

NAM Programming3-6 Samsung Electronics

Samsung Electronics 4-14. Data Transfer When the main board of a customer's cellularphone is required to be replaced with a new one,or the custom

4-2Samsung ElectronicsData Transfer7. Remove the phone from the test jig and connectthe new phone to the test jig.Caution: If you try to perform rea

Samsung Electronics 5-15. Circuit Description5-1 Logic Section5-1-1 Power SupplyWith the battery installed on the phone and bypressing the END/

Circuit Description5-2 Samsung Electronics5-1-3 Baseband PartMOBILE SYSTEM MODEM (MSM)The MSM equipped with the INTEL 80C186 CPUcore is an important

5-1-4 Audio PartTX AUDIO PATHThe voice signal output from microphone isfiltered and amplified by the internal OP-AMPand is converted to PCM data by t

5-4 Samsung ElectronicsCircuit Description5-2 Receiver SectionLOW NOISE AMPLIFIER (LNA, Q302)The low noise amplifier amplifies a weak signalreceived

Circuit DescriptionSamsung Electronics 5-5VOLTAGE CONTROLLED OSCILLATOR (VCO,U341)The VCO (U341) generates the signal having 966MHz center frequency a

£àSamsung Electronics Co.,Ltd. APR. 1998.Printed in KoreaCode No. : GH68-60687A

Circuit Description5-6 Samsung Electronics5-3 Transmitter SectionBBA (U401)BBA (U401) consists of ADC, DAC, LPF(FM/CDMA), divider, VCO, logic control

Circuit DescriptionSamsung Electronics 5-75-4 Desk-Top Rapid ChargerThe Desk-top rapid charger(DTC21) is largely divided by two parts. One part genera

Circuit Description5-8 Samsung ElectronicsSTATIC VOLTAGE CIRCUIT (4.1V OUTPUT)The secondary (cathod of D23) output voltage Vois separated by R50, VR1,

Circuit DescriptionSamsung Electronics 5-9DETECTION OF BATTERY TYPEThe battery type in the front port is detected byR54, R56, and the resistor which i

Circuit Description5-10 Samsung Electronics

Samsung Electronics 6-16. Exploded View and it s Par ts List6-1 Fixed Phone Exploded View6-2 Fixed Phone Parts List6-3 Rapid Charger Exploded

Exploded View and its Parts List6-2 Samsung Electronics6-1 Fixed Phone Exploded View

Exploded View and its Parts ListSamsung Electronics 6-36-2 Fixed Phone Parts List1 Front Window GH72-41404A2 Front Cover Ass’y GH75-11129A3 Earphone

Exploded View and its Parts List6-4 Samsung Electronics6-3 Rapid Charger Exploded ViewSEC.CODE : GH96-01053A

Exploded View and its Parts ListSamsung Electronics 6-56-4 Cradle Dummy Ass’y & Cigar Lighter AdapterSEC.CODE : GH75-11215A

Samsung Electronics 1-11. General Introduct ionThe SCH-470 cellular phone functions as only digital cellular phone working in CDMA (Code DivisionMult

6-6 Samsung ElectronicsExploded View and its Parts List

7-4Samsung Electronics7-2 Electrical Parts ListSEC. CODE DESCRIPTION PART NO. POSITION0405-000107 DIODEVARACTOR D401,D402,D403,D404 TX0401-001052 DIO

Samsung Electronics 7-5SEC. CODE DESCRIPTION PART NO. POSITION0803-003010 IC-TTL U114 AUDIO1001-001019 IC-ANALOG MULTIPLEX U481 TX1103-001062 IC-EEPRO

7-6 Samsung ElectronicsElectrical Parts ListSEC. CODE DESCRIPTION PART NO. POSITION2007-000140 R-CHIP 1K 1/16W R416,R451 TX2007-000141 R-CHIP 2.2K 1/1

7-7Electrical Parts ListSEC. CODE DESCRIPTION PART NO. POSITION2007-000159 R-CHIP 56K 1/16W R148 AUDIO2007-000159 R-

Electrical Parts List7-8 Samsung ElectronicsSEC. CODE DESCRIPTION PART NO. POSITION2007-001298 R-CHIP 51 1/16W R468 TX2007-001305 R-CHIP 120 1/16W R46

Electrical Parts ListSamsung Electronics 7-9SEC. CODE DESCRIPTION PART NO. POSITION2203-000234 C-CHIP 100P 1005 C411,C451,C417,C491,C493 TX2203-000254

1-2 Samsung ElectronicsGeneral Introduction 1.1 General¶UFrequency Range Transmitter : 824.64 ~ 848.37 MHz Receiver : 869.64 ~ 893.37 MHz ¶UChannel

Electrical Parts List7-10 Samsung ElectronicsSEC. CODE DESCRIPTION PART NO. POSITION2203-000466 C-CHIP 1PF 1005 C456 TX2203-000489 C-CHIP 2.2NF 1005 C

Electrical Parts ListSamsung Electronics 7-11SEC. CODE DESCRIPTION PART NO. POSITION2203-005061 C-CHIP 100NF 1005 C176,C174,C178,C170,C172, LOGICC173,

Electrical Parts List7-12

Samsung Electronics 8-18. Troubleshooting8-1 Logic Section8-1-1 No Power

Troubleshooting8-2 Samsung Electronics8-1-2 Abnormal Initial Operation (Normal +3.3V voltage source)

Samsung Electronics 8-3Troubleshooting8-1-3 Abnormal Backlight Operation

Troubleshooting8-4 Samsung Electronics8-1-4 Abnormal Key Data Input

Samsung Electronics 8-5Troubleshooting8-1-5 Abnormal Keytone

Troubleshooting8-6 Samsung Electronics8-1-6 Abnormal Alert Tone

Samsung Electronics 8-7Troubleshooting8-2 RF Section8-2-1 RF Secton Troubleshooting

2. Specif icationFrequency Range Transmitter : 824.64 MHz ~ 848.37MHzFrequency Range Receiver : 869.64 MHz ~ 893.37 MHzWaveform Quality : above 0.94

Troubleshooting8-8 Samsung Electronics8-2-2 Receiver Part

Samsung Electronics 8-9Troubleshooting8-2-3 Transmitter Part

Troubleshooting8-4 Desk-Top charger8-4-1 Check 1 8-10Samsung Electronics

TroubleshootingSamsung Electronics 8-11

8-4-2 Check 2 Troubleshooting8-12 Samsung Electronics

8-4-3 Check 3 TroubleshootingSamsung Electronics 8-13

Troubleshooting8-14 Samsung Electronics

Samsung Electronics 9-19. Test Command TableCommand No. (OP, AB, RB) 01(1F, 0, 0) T_SUSPEND_I Terminate the normal mode, enter to the

Test Command Table9-2 Samsung ElectronicsCommand No. (OP, AB, RB) 70(CA, 3, 0) T_WRITE_BATT_I3)Write battery level.71(D1, 3, 0) T_CDMA_TXADJ

10. Block & Cir cuit Diagr amsSamsung Electronics 10-110-1 Block Diagram10-2 Circuit Diagram10-2-1 Power Circuit Diagram10-2-2 Audio Cir

2-2 Samsung Electronics

Samsung Electronics 3-13. NAM Programming3.1 Switching the NAM(Numeric Assignment Module) writing modeIf you performs NAM writing mode, you have to en

NAM Programming3-2 Samsung Electronics3-2 Setting Up NAM1LCD Display Key in Function47¶S869#08#9 -selects NAM programming1 -choose 'GENERAL.&apo

Samsung Electronics 3-3NAM ProgrammingLCD Display Key in Function2 -choose 'NAM1.'number International Mobile Station Identity Mobile Countr