ELECTRONIC DUAL BAND(PCS+AMPS) PORTABLE TELEPHONE SCH-8500 SERVICE Manual DUAL MODE TELEPHONE CONTENTS 1. Specification 2. Nam Programming 3. Test Commands & Test Procedure List 4. Test Procedure 5. Exploded View & its Parts List 6. Electrical Parts List 7. Block Diagram 8. PCB Diagram 9.
ELECTRONICS Samsung Electronics Co.,Ltd. Dec. 99 Pinted in Korea. Code No.
1. Specification 1-1 General ITEM CDMA AMPS Tx Freq. range 1850 ~ 1910MHz 824 ~ 849MHz Rx Freq. range 1930 ~ 1990MHz 869 ~ 894MHz Channel Bandwidth 1.23MHz 30KHz Channel Spacing 50KHz 30KHz Number of Channel 1200 832 Duplex Separation 80MHz 45MHz Type of Emission 1M25F9W 40K0F8W,40K0F1D In/Output Impedance 50 50 Tx Intermediate Freq. 130.38MHz 130.38MHz Rx Intermediate Freq. 210.38MHz 85.38MHz Tx Local Freq. 1st (FTX-130.38MHz) 2nd (260.76MHz) 1st (FTX+130.
1-2. 1.9GHz CDMA(US PCS) 1) General Frequency Range • Transmitter : 1850-1910MHz • Receiver : 1930-1990MHz Channel Bandwidth : 1.23MHz Channel Spacing : 50kHz Number of Channels : 1200 Duplex Seperation : 80 MHz Type of Emission : 1M25F9W Input/Output Impedance : 50 Intermediate Frequency • Transmitter : 130.38MHz • Receiver : 210.38MHz Local Frequency • Transmitter : 1st(FTX-130.38), 2nd(260.76MHz), • Receiver : 1st(FRX-210.38MHz), 2nd(420.76MHz), TCXO Frequency : 19.
3) Receiver Rx Sensitivity and Dynamic Range : -104dBm, FER = 0.5% or less : - 25dBm, FER = 0.5% or less Conducted Spurious Emission • 1930 ~ 1990MHz : <-81dBm • 1850 ~ 1910MHz : <-61dBm • All Other Frequencies : <-47dBm Single Tone Desensitization : lower than 1 % Rx power = -101dBm Tone power = -30dBm Tone offset from carrier = ±1.25 MHz Intermodulation Spurious Response Attenuation : lower than 1 % Rx power = -101dBm Tone 1 power = -43dBm Tone 2 power = -43dBm Tone 1 : offset from carrier = ± 1.
1-3. 800MHz AMPS 1) General Frequency Range • Transmitter : 824~849 MHz • Receiver : 869~894MHz Channel Spacing : 30kHz Number of Channels : 832 Duplex Spacing : 45MHz Frequency Stability : ±2.5ppm(-30°C ~ 60°C, -22°F ~ 140°F) Modulation/Demodulation • Voice : PM • Data : FM Operating Temperature :-30°C ~ 60°C, -22°F ~ 140°F Supply Voltate : 3.6V 2) Transmitter RF output power : 0.
Spectrum Noise Suppression For all modulation fo +20 kHz ~ fo + 45 kHz : above 26dB For modulation by voice and SAT fo + 45 kHz : above 63dB+10LOG(PY)dB For modulation by WBD(without SAT) and ST(with SAT) fo +45 kHz ~ fo + 60 kHz : above 45 dB fo +60 kHz ~ fo + 90 kHz : above 65 dB fo +90 kHz ~ 2 fo : above 63 dB + 10 LOG(PY) dB (where fo = carrier frequency PY = mean output power in watts) Harmonic and conducted Spurious Emissions : below 43 + 10 LOG(PY) dB 3) Receiver De-emphasis Expandor Expandor Rate A
2. Nam Programming LCD Display Key in MENU, 8,2,0 Enter Lock ?????? SVC Menu 1: Phone # 2: General 3: NAM Phone # 1234567890 Mobile ID # 1234567890 SVC Menu 1: Phone # 2: General 3: NAM ESN B0000000 222222 Function - Selects NAM programming - Enter random 6-digit code(MSL) 1 - Choose ‘Phone #’ keypad OK - Phone number setup - To change phone number, enter phone #. - Store it. keypad OK - Mobile ID setup - To change phone number, enter phone #. - Store it.
LCD Display Svc Menu 1: Phone # 2: General 3: NAM Key in 3 - Choose ‘Setup NAM’ number OK IMSI Moble Country Code,current code is displayed. - To change,enter new one. - Sstores it. number OK IMSI Mobile Network Code,current code is displayed. - To change,enter new one. - Stores it. class number OK CDMA Access Overload Class,current status is displayed. - To change,enter new one. - Stores it. * or # OK CDMA Home system ID,current status is displayed - Changes the status. - Stores it.
LCD Display Key in NAM program 1. General 2. Setup NAM1 3. Setup NAM2 3 choose ‘Setup NAM2’ number OK IMSI Moble Country Code, current code is displayed. - To change, enter new one. - Store it. number OK IMSI Mobile Network Code, current code is displayed. - To change, enter new one. - Store it. Phone number OK - Phone number - To change, enter new one. - Store it. Phone number OK - Directory number - To change, enter new one. - Store it.
LCD Display Key in NAM2 Digital Lockout SID02 0 ID number OK Function 2nd lock system ID,current status is displayed. - To change, enter new one. - Store it. —————- repeated to Lockout SID10————————————NAM2 Digital CDMA Home SID Yes NAM2 Digital CDMA fSID Yes NAM2 Digital CDMA fNID Yes NAM2 Digital CDMA ACCOLC 6 NAM2 Analog Phone # 1234567890 NAM2 Analog Directory # 1234567890 < or > OK CDMA Home system ID, current status is displayed - Changes the status. - Store it.
4. Test Procedure 4-1 List of Equipment - DC Power Supply - Test Jig - Test Cable - CDMA Mobile Station Test Set HP8924C, HP83236A, CMD-80, etc - Spectrum Analyzer(include CDMA Test Mode) HP8596E 4-2 Configuration of Test Spectrum Analyzer RF In HP8924C Audio Audio Out In RF In/Out Directional Coupler To A-Out Test Jig To A-In DC Power Supply (+3.93V) ❈ CAUTION : The test jig and data cable has a voltage drop of 0.33V at FM Max power output, you’d better set the DC power supply to 3.
4-3 TEST CABLE DESCRIPTION FOR SCH-8500 1. TEST CABLE 3 2 1 4 5 6 2. TEST CABLE CONNECTIONS 1 MHC 172 2 RF CABLE (1.4 dB Loss for AMPS, 2.
3. Dsub 25 PIN CONNECTOR PIN DESCRIPTION (TEST CABLE 1, BACK SIDE) DATA DESCRIPTION Dsub CONN. PIN NO. DATA DESCRIPTION Dsub CONN. PIN NO. V_F 12,21 DP_RX_DATA 8 DGND 2, 4, 6, 13, 19 HP_PWR 9 BATT 15, 16, 22 RI 10 C_F 3,20 CD 11 TX_AUDIO 5 RTS 14 DP_TX_DATA 7 CTS 17 RX_AUDIO 1 DTR 18 14 1 15 2 16 3 17 4 18 5 19 6 20 7 21 8 22 9 23 10 11 24 25 12 13 4.
4-4 Test Procedure 4-4-1 Change to Test Mode A. To change the phone’s state from Normal Mode to Test Mode, You should enter the following keys. “4 7 * 8 6 9 # 1 2 3 5” B.The command “20” is mode and channel change , press “OK” to save. “10000” or “10001” : AMPS’s Sytem A and Sytem B “30600” Channel number Mdoe : CDMA C. The command “0 1” is Suspend. D. To finish the Test Mode, You should enter the command “0 2”. 4-4-2 Channel Selection and Tx Power Output Level Control 1. AMPS(FM) A.
2. PCS A. Enter to Test Mode ( 4 7 * 8 6 9 # 1 2 3 5 ). B.The command “20” is mode and channel change “30600” Channel number Mdoe : CDMA C. To finish the Test Mode, You should enter the command “0 2”. D. “0 1” : Suspend. E. “0 9 0 6 0 0 #” : Set to ‘0600’ channel. F. “0 7” : Carrier On. G. “3 4” : Spread spectrum to 1.23MHz band width. H. “84” : High Power-mode On I. “7 4 * * * “ : Output RF power level is set max power “* * *” means AGC level and AGC level range is from 000 to 511.
4-5 Channel number 1. AMPS(FM) TEST ITEMS 1. PREPARATION PROCEDURE Set test equipments up. Confirm that the phone is in the Analog Mode! ( “10000” or “10001” at Test Command “2 0”.) “4 7 * 8 6 9 # 1 2 3 5 “ : Enter the Test Mode “0 1” : Suspend “4 6” : Initialize Vocoder in Analog mode If a wrong key would be selected, press “#”, and then enter new command. To exit the Test Mode at any time, just press [0 2]. 2. RF POWER “0 1” : Suspend. “4 6” : Initialize Vocoder in Analog mode.
TEST ITEMS 5. ST DEVIATION PROCEDURE “0 1” : Suspend. “4 6” : Initialize Vocoder in Analog mode. “0 9 0 3 6 3 #” : Set channel to 363. “0 7” : Carrier On. “1 6” : ST on. Measure the Tx ST deviation by using the HPF of 50Hz (spec : 8kHz±10%). “1 7” : ST off. 6. SAT DEVIATION “0 1” : Suspend. “4 6” : Initialize Vocoder in Analog mode. “0 9 0 3 6 3 #” : Set channel to 363. “0 7” : Carrier On. “3 2” : SAT on. Set the equipment as following. RF frequency : 880.
2. PCS TEST ITEMS 1. PREPARANCE PROCEDURE Set test equipments up. Confirm that the phone is in the PCS Mode. (“3XXXX” at Test Command “0 2”) “* 4 7 * 8 6 9 # 1 2 3 5 “ : Enter the Test Mode “0 1” : Suspend If you select a wrong key, press “#”, then enter new command. To exit the Test Mode at any time, just press [0 2]. 2. FREQUENCY ACCURACY “0 1” : Suspend. “0 9 0 3 6 3 #” : Set channel to 363. “0 7” : Carrier On. “9 2” :You can read the number.
5.
5-2 Main Set Parts List NO 1 Level 1-1 1-2 1-3 1-4 1-5 2 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 3 3-1 3-2 3-3 3-4 4 4-1 4-2 4-3 4-4 4-5 4-6 4-7 4-8 5 5-1 5-2 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 SEC CODE GH75-00307A GH72-00491A GH74-10772A GH74-00318A GH74-00483A GH74-00510A GH75-00376B GH74-00319A GH74-10777A GH74-00322A GH72-00671B GH74-00321A GH74-10775A GH74-00304A GH70-00036A GH75-00414A GH75-00374B GH72-00669B GH72-41801A GH74-00378A GH74-00440A GH75-00377A GH68-30846A GH70-10
6. Electrical Parts List SEC CODE LOC NO. GH41-00066A GH42-00040A DESCRIPTION PCB-VOLUME KEY ANT. SPEC ANTENNA-SCH8500/850 SCH-8500,824~894/1850~1990Mhz GH43-00161A BATTERY-SCH850,8500(USA) 3.6V,1000mAh,-,0.5C,3.6V GH44-00099A CHARGER-DTC850(USA) SCH-850/8500,AC/DC,12W,85/264V GH96-00862A ELA ETC-LCD ASS’Y GH41-00060A PCB-LOGIC SCH-8500,FR-4,-,0.8t,118 X 104mm GH41-00061A PCB-RF SCH-8500,FR-4,6L,0.
SEC CODE LOC NO. DESCRIPTION SPEC 2007-001298 R305 R-CHIP 51ohm,5%,1/16W,DA,TP,1005 2007-001298 R432 R-CHIP 51ohm,5%,1/16W,DA,TP,1005 2007-001317 R417 R-CHIP 910ohm,5%,1/16W,DA,TP,1005 2007-001320 R434 R-CHIP 1.8Kohm,5%,1/16W,DA,TP,1005 2007-002970 R301 R-CHIP 56OHM,5%,1/16W,DA,TP,1005 2007-002970 R304 R-CHIP 56OHM,5%,1/16W,DA,TP,1005 2007-003019 R306 R-CHIP 430OHM,5%,1/16W,DA,TP,1005 2007-007001 R329 R-CHIP 3.9KOHM,5%,1/16W,DA,TP,1005 2007-007001 R416 R-CHIP 3.
SEC CODE LOC NO.
SEC CODE LOC NO. DESCRIPTION SPEC 2203-000466 C420 C-CERAMIC,CHIP 0.001nF,0.25pF,50V,NP0,1005 2203-000466 C457 C-CERAMIC,CHIP 0.001nF,0.25pF,50V,NP0,1005 2203-000696 C302 C-CERAMIC,CHIP 0.001nF,0.25pF,50V,NP0,1005 2203-000696 C362 C-CERAMIC,CHIP 0.001nF,0.25pF,50V,NP0,1005 2203-000812 C403 C-CERAMIC,CHIP 0.033nF,5%,50V,NP0,TP,1005 2203-000812 C415 C-CERAMIC,CHIP 0.033nF,5%,50V,NP0,TP,1005 2203-000812 C418 C-CERAMIC,CHIP 0.
SEC CODE LOC NO. DESCRIPTION SPEC 2203-005393 C328 C-CERAMIC,CHIP 0.005nF,0.1pF,50V,NP0,TP,1005 2203-005393 C330 C-CERAMIC,CHIP 0.005nF,0.1pF,50V,NP0,TP,1005 2203-005444 C321 C-CERAMIC,CHIP 0.003nF,0.1pF,50V,NP0,TP,1005 2203-005481 C463 C-CERAMIC,CHIP 47nF,10%,10V,X7R,TP,1005,- 2404-001017 C367 C-TA,CHIP 1uF,20%,10V,GP,TP,2012,2,0 2404-001086 C327 C-TA,CHIP 4.7uF,20%,6.3V,GP,TP,2012,- 2404-001105 C357 C-TA,CHIP 10UF,20%,6.
SEC CODE LOC NO. DESCRIPTION SPEC 2809-001228 U307 OSCILLATOR-VCTCXO 19.68MHZ,2PPM,-,TP,2.8V,2MA 2904-001020 F403 FILTER-SAW 1.88GHz,60MHz,+-30MHz/2.5dB 2904-001020 F405 FILTER-SAW 1.88GHz,60MHz,+-30MHz/2.5dB 2904-001021 F302 FILTER-SAW 1.96GHz,60MHz,+-30MHz/2dB 2904-001109 F304 FILTER-SAW 1747.5MHz,+-30MHz,1.2dB,TP,2.5 2904-001123 F401 FILTER-SAW 130.38MHz,1.25MHz,+-0MHz/8dB 2904-001136 F306 FILTER-SAW 881.5MHz,25MHz,+-12.5MHz/1.6dB 2904-001138 F402 FILTER-SAW 836.
SEC CODE LOC NO. DESCRIPTION SPEC REMARK 0501-002202 Q111 TR-SMALL SIGNAL MMBT2222AWT1,NPN,150mW,SOT-323 0504-000167 Q150 TR-DIGITAL RN1102,NPN,100MW,10K/10K,SSM,TP 0504-000168 Q101 TR-DIGITAL RN1104,NPN,100MW,47K/47K,SSM,TP 0504-000168 Q152 TR-DIGITAL RN1104,NPN,100MW,47K/47K,SSM,TP 0504-000172 Q110 TR-DIGITAL RN2104,PNP,100MW,47K/47K,SSM,TP 0504-000172 Q153 TR-DIGITAL RN2104,PNP,100MW,47K/47K,SSM,TP 0505-001037 U150 FET-SILICON -,P,-12V,+-2.5A,0.
SEC CODE LOC NO. DESCRIPTION SPEC 2007-000140 R180 R-CHIP 1Kohm,5%,1/16W,DA,TP,1005 2007-000140 R252 R-CHIP 1Kohm,5%,1/16W,DA,TP,1005 2007-000141 R152 R-CHIP 2.2Kohm,5%,1/16W,DA,TP,1005 2007-000141 R153 R-CHIP 2.2Kohm,5%,1/16W,DA,TP,1005 2007-000141 R159 R-CHIP 2.2Kohm,5%,1/16W,DA,TP,1005 2007-000141 R190 R-CHIP 2.2Kohm,5%,1/16W,DA,TP,1005 2007-000141 R192 R-CHIP 2.2Kohm,5%,1/16W,DA,TP,1005 2007-000141 R251 R-CHIP 2.2Kohm,5%,1/16W,DA,TP,1005 2007-000143 R110 R-CHIP 4.
SEC CODE LOC NO.
SEC CODE LOC NO. DESCRIPTION SPEC 2007-007771 R168 R-CHIP 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R196 R-CHIP 0OHM,5%,1/16W,DA,TP,1005 2007-007771 R211 R-CHIP 0OHM,5%,1/16W,DA,TP,1005 2203-000189 C258 C-CERAMIC,CHIP 100nF,+80-20%,25V,Y5V,TP,1608, 2203-000233 C109 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1005 2203-000233 C116 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1005 2203-000233 C117 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1005 2203-000233 C118 C-CERAMIC,CHIP 0.
SEC CODE LOC NO. DESCRIPTION SPEC 2203-000386 C293 C-CERAMIC,CHIP 0.015nF,5%,50V,NP0,TP,1005 2203-000386 C295 C-CERAMIC,CHIP 0.015nF,5%,50V,NP0,TP,1005 2203-000425 C202 C-CERAMIC,CHIP 0.
SEC CODE LOC NO. DESCRIPTION SPEC 2203-002494 C251 C-CERAMIC,CHIP 470nF,10%,16V,X7R,TP,2012 2203-002525 C184 C-CERAMIC,CHIP 0.56nF,10%,50V,X7R,TP,1005 2203-002525 C185 C-CERAMIC,CHIP 0.56nF,10%,50V,X7R,TP,1005 2203-002525 C186 C-CERAMIC,CHIP 0.56nF,10%,50V,X7R,TP,1005 2203-002525 C187 C-CERAMIC,CHIP 0.
SEC CODE LOC NO. DESCRIPTION SPEC 3301-001105 L201 CORE-FERRITE AB,1.6x0.8x0.8mm,-,- 3301-001105 L202 CORE-FERRITE AB,1.6x0.8x0.8mm,-,- 3301-001105 L209 CORE-FERRITE AB,1.6x0.8x0.8mm,-,- 3301-001105 L210 CORE-FERRITE AB,1.6x0.8x0.8mm,-,- 3301-001105 L212 CORE-FERRITE AB,1.6x0.8x0.8mm,-,- 3708-001295 CN400 3710-001510 J401 3711-004367 CN401 3722-001172 J200 GH71-00002A GH71-00002A CONNECTOR-FPC/FC/PIC 22P,0.5mm,SMD-A,SN CONNECTOR-SOCKET 18P,1R,0.
Samsung Electronics PA PA A M PS D U PLEXER A M PS A M PS LN A LN A A M PS 824~ 849M H z 1850~ 1910M H z PA M odule ISO ISO PCS PC S PCS D U PLEXER PC S ANT 1930~ 1990M H z A M PS 869~ 894M H z PC S DA DA M R FIC1854 V CO 210.38M H z V CO 130.38M H z T ank Tx CXO V CT tank Rx A M PS PCS PC S /AM PS PCS A M PS PLL m odule PLL A M PS 85.
8.
8-2 Logic Bottom View Samsung Electronics 8-2
8-3 RF Bottom View 8-3 Samsung Electronics
9. Schematic Diagrams 9-1 Logic Circuit Diagram (1) S3.6 VDD D101 CL-150HR 1 VCC 2 OUT 2 Q102 LED_ON MMBT2222AWT1 3 1 1 U103 1 3 2 R104 20 R106 3.3K R105 20 RI R107 22K SCAN(0:6) U104-1 74LCX08MTCX 7 R109 100 C109 100PF VDD KEY(0:2) 2 R166 1.5K R112 10K 5 OSC101 CSTCW2700MX03 6 2 A(20) PS_HOLD R126 4.
9-2 Logic Circuit Diagram (2) VAA R251 2.
9-3 Transmitter Circuit Diagram C410 C423 C403 33PF 10NF C417 R418 C418 33PF PCS_TX_LO 18 L423 1.5nH 1NF R406 300 PA_R0 100PF VTT_PCS C433 1.5PF R403 300 CN401 AXK5S40045J C414 10NF F405 FAR-F6CE-1G8800-L2XA C428 L411 82nH C408 10NF IN OUT 2 4PF 5 G G G G PDM2 1 3 4 6 EXC-OUT GND5 TXEN EXC-IN 21 10 9 8 RF-V 7 VCC1 NC VCC3 6 5 4 3 LOIN B-SEL GND1 11 GND2 VCC2 12 R430 0 13 C446 GND3 U410 MRFIC1854R2 R434 1.
9-4 Receiver Circuit Diagram C307 1PF L304 3.3nH F302 FAR-F6CE-1G9600-L2XB C302 2PF R302 4.7 ATF-35143 2 D G 4 S2 Q301 S1 1 3 IN R306 430 F304 FAR-F6CE-1G7475-L2YAD L308 10nH L309 10nH PCS_RX_LO OUT OUT 2 5 2 G G G G L303 3.9nH G G G G 1 3 4 6 C305 8.2PF VRR_PCS IN 5 6 4 3 1 R311 240 C326 100PF L312 4.7nH L319 BLM11A102SPT C325 1NF C310 1NF R305 51 C303 30PF C306 30PF C332 C331 10PF 100PF C308 1NF R303 4.7 R419 NC C319 560PF U301 3 3.9nH L307 C309 8.
