Samsung SCH-850 Series Service Manual Download

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ELECTRONIC

DUAL MODE(CDMA+AMPS)
PORTABLE TELEPHONE

SCH-850

ABC

END/

DEF

JKL

MNO

GHI

TUV

WXYZ

PQRS

OPER

. '

SEND

MENU

OK /

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. Schematic Diagrams

SERVICE

Summary of Contents for SCH-850 Series

Page 1: ...NO 4GHI 8TUV 9WXYZ 7PQRS 0OPER 1 SEND MENU OK 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 Schematic Diagrams SERVICE ...

Page 2: ...Samsung Electronics Co Ltd Dec 99 Pinted in Korea Code No GH68 00947A ELECTRONICS ...

Page 3: ...A 824 849MHz 869 894MHz 1 23MHz 30KHz 832 45MHz 40K0F8W 40K0F1D 50Ω 130 38MHz 85 38MHz 1st FTX 130 38MHz 2nd 260 76MHz 1st 170 76MHz 2nd FRX 85 38MHz 19 68MHz FRX 45MHz 300Hz 30 C 60 C AMPS 824 849MHz 869 894MHz 30KHz 30KHz 832 45MHz 40K0F8W 40K0F1D 50Ω 130 38MHz 85 38MHz 1st FTX 130 38MHz 2nd 260 76MHz 1st 170 76MHz 2nd FRX 85 38MHz 19 68MHz 2 5ppm 30 C 60 C Supply Voltage 3 6V Size and Weight Sl...

Page 4: ...130 38MHz 2nd 260 76MHz Receiver 1st FRX 85 38MHz 2nd 170 76MHz TCXO Frequency 19 68MHz Frequency Stability FRX 45MHz 300Hz Operation Temperature 30 C 60 C Supply Voltage 3 6V 2 Transmitter Waveform Quality 0 944 or more Open Loop Power Control Range 25dBm 57 5dBm 38 5dBm 65dBm 17 5dBm 1 5dBm 104dBm 18 0dBm 30dBm Minimum Tx Power Control below 50dBm Closed Loop Power Control Range 24dB Maximum RF ...

Page 5: ... All Other Frequencies 47dBm Single Tone Desensitization lower than 1 Rx power level 101dBm Tone power level 30dBm Tone offset from carrier 900 kHz Intermodulation Spurious Response Attenuation lower than 1 Rx power 101dBm Tone 1 power 43dBm Tone 2 power 43dBm Tone 1 offset from carrier 900kHz Tone 2 offset from carrier 1 700MHz 1 3 Samsung Electronics ...

Page 6: ...ithin 3dB of specification output in 2 ms OFF Condition below 60dBm in 2ms Compresssor Compression Rate 2 1 Attack Time 3ms Recovery Time 13 5ms Reference Input input power level for producing a nominal 2 9kHz peak frequency deviation of transmitted carrier Preamphasis 6dB OCT within 0 3 3 kHz Maximum Frequency Deviation F3 of G3 12 kHz Supervisory Audio Tone 2 kHz 10 Signaling Tone 8 kHz 10 Wideb...

Page 7: ... Rate 1 2 Attack time within 3 ms Recovery Time within 13 5 ms Reference input output power level to a 1000Hz tone from a carrier within 2 9 kHz peak frequency deviation Sensitivity 12 dB SINAD 116dBm Intermodulation Spurious Response Attenuation above 65dB RSSI Range above 60dB Protection Against Spurious Response Interference above 60dB In Band Conducted Spurious Emission Transmit Band below 60 ...

Page 8: ...ber 1234567890 Phone number to change enter new one OK store it NAM1 Activate PRL PRL status No or to activate PRL press or OK store it NAM1 Anlg HomeSID System ID for home current ststus is displayed 4369 ID number to change enter new one OK store it NAM1 Dgtl HomeSID System ID for home current ststus is displayed 4369 ID number to change enter new one OK store it NAM1 More Prog General NAM setup...

Page 9: ...sion slotted class dual mode OK Press OK to view next status item General Service Code Service code current ststus is displayed 654321 6 digit code to change enter new code OK store it General Lock Code Lock code current ststus is displayed 0000 4 digit code to change enter new code OK store it General Slot Mode Slot mode Yes indicates the slot mode Yes or changes the status OK store it General Sl...

Page 10: ...l Home SID 01 1st CDMA Home system ID current status is displayed 1 Phone number to change enter new one OK store it NAM2 Digital Home NID 01 1st CDMA Home Network ID current status is displayed 65535 Phone number to change enter new one OK store it NAM2 Digital Home SID 02 2nd CDMA Home system ID current status is displayed 1 Phone number to change enter new one OK store it NAM2 Digital Home NID ...

Page 11: ...DMA Access Overload Class current status is displayed 6 class number to change enter new one OK store it NAM2 Analog Phone Phone number 1234567890 Phone number to change enter new one OK store it NAM2 Analog Directory directory number 1234567890 Phone number to change enter new one OK store it NAM2 Analog Home SID Analog Home system ID current status is displayed 1 Phone number to change enter new...

Page 12: ...ANSWER_I T_SATON_I 2 T_SATOFF_I T_CDATA_I T_RXRAS_FLATNESS_I T_VOC_ENC_OFFSET_I T_VOC_DEC_OFFSET_I T_VOC_CDMA_UNITY_GAIN_I T_VOC_FM_HFRX_UPGAIN_I T_DTMFON_I2 T_DTMFOFF_I T_COMPANDORON_I T_COMPANDOROF_I T_FM_VCLINE_I T_FM_AUD_GAIN_I Enter to test menu Escape from test menu Get mode CDMA FM Turn on the carrier Turn off the carrier Load the synthesizer for locking Change RF power level Mute rx audio ...

Page 13: ...TRK_ADJ_I T_FM_CH_FLATNESS_I T_TXRAS_ADJ_I T_RXRAS_ADJ_I T_CH_FLATNESS_I T_FM_TX_PWR_I T_TXRAS_ADJ_BP_ON_I T_SND_GAIN_I Activate a vibrator Inactivate a vibrator Battery Type View HW version Target Carrier option Change banner Target Service option External Audio Path On Off Unmute MIC Path mute MIC Path Tune on the all audio path AMPS Tx Audio Gain Control AMPS Rx Audio Gain Control AMPS Tx DTMF ...

Page 14: ...Configuration of Test 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 93V for normal test condition Nominal voltage of battery is 3 6V at cellular phone Samsung Electronics 4 1 Spectrum Analyzer RF In HP8924C RF In Out Directional Coupler Test Jig To A Out To A In DC Power Supply 3 93V Audio Out Audio In ...

Page 15: ...n for SCH 850 1 Test Cable 2 Test Cable Connections 1 MHC 172 2 RF CABLE 91 4db Loss for CDMA800 and AMPS 3 BNC CONNECTOR RF 4 PLUG CONNECT TO SCH 850 5 DATA CABLE 6 Dsub 25PIN CONNECTOR DATA 4 2 Samsung Electronics 1 4 5 6 2 3 ...

Page 16: ... NO DP_RX_DATA 8 HP_PWR 9 RI 10 CD 11 RTS 14 CTS 17 DTR 18 4 CONVERSION TABLE OF FREQUENCY vs CHANNEL T Y P E CHANNEL CONVERSION EQUATION REMARK TX 1 N 799 F 0 03 X N 825 00 N CH NUMBER FREQUENCY 990 N 1023 F 0 03 X N 1023 825 00 F FREQUENCY RX 1 N 799 F 0 03 X N 870 00 AMPS CDMA FREQUENCY 990 N 1023 F 0 03 X N 1023 870 00 Samsung Electronics 4 3 14 15 16 17 18 19 20 21 22 23 24 25 1 2 3 4 5 6 7 8...

Page 17: ...4 2 Channel Selection and Tx Power Output Level Control 1 AMPS FM A Enter to Test Mode 7 5 9 8 1 3 5 8 0 B The command 21 is mode and channel change 10000 or 10001 AMPS s Sytem A and Sytem B C To finish the Test Mode You should enter the command 0 2 D 0 1 Suspend E 4 6 Vocoder initial to Analog mode F 0 9 0 3 6 3 Set to 0363 channel G 0 7 Carrier On H 9 7 Output RF power level is set as power leve...

Page 18: ...he Test Mode You should enter the command 0 2 D 0 1 Suspend E 0 9 0 3 6 3 Set to 0363 channel F 0 7 Carrier On G 3 4 Spread spectrum to 1 23MHz band width H 8 4 High Power mode On I 9 6 Output RF power level is set max power means AGC level and AGC level range is from 000 to 511 Channel number Mdoe CDMA Samsung Electronics 4 5 ...

Page 19: ...2 4dB 5 15 dBm 2 4dB 6 12 dBm 2 4dB 7 9 dBm 2 4dB 0 8 Carrier off Note 1 In case of using the antenna cable compensation for th cable loss should be added about 1 5dB Note 2 To prevent phones from being damaged they must be measured only by calibrated test equipments Warning Adjustments without calibrated equipments can cause phones to be heated excessively and would void the warranty 3 TX 0 1 Sus...

Page 20: ...y 6kHz Frequency deviation 2kHz Measure the Tx SAT deviation by using the HPF of 50Hz and the LPF of 6kHz spec 2kHz 10 3 3 SAT off 7 WBD 0 1 Suspend DEVIATION 4 6 Initialize Vocoder in Analog mode 0 9 0 3 6 3 Set channel to 363 0 7 Carrier On 3 4 WBD on Measure the WBD deviation by using the HPF of 50Hz and the LPF of 20kHz spec 8kHz 10 8 RX AUDIO 0 1 Suspend 4 6 Initialize Vocoder in Analog mode ...

Page 21: ...6 You can read the number the code and the push the 7 1 2 6 0 Set AGC level to the numer of reading about 188 Measure the bandwidth spec 1 32MHz 4 LIMITATIONS ON 0 1 Suspend EMISSIONS 0 9 0 3 6 3 Set channel to 363 0 7 Carrier On 3 4 Spread spectrum 8 4 High power mode 9 6 You can read the number the code and the push the 7 1 2 6 0 Set AGC level to the numer of reading about 188 Measure the spurio...

Page 22: ...5 Exploded View its Parts List 5 1 Main Set Exploded View Samsung Electronics 5 1 ...

Page 23: ...NA 4 2 GH70 10516A IPR SPRING LOCKER SNA 4 3 GH71 00010A NPR GROUND PLATE SNA 4 4 GH71 00100A NPR BRACKET ANT SNA 4 5 GH72 00127A PMO BATT LOCKER SNA 4 6 GH72 00673A PMO REAR COVER SNA 4 7 GH74 00027A MPR SHIELD TAPE SNA 4 8 GH74 00377A MPR BUZZER GRILL SNA 5 GH75 00394A MEC SHIELD COVER 5 1 GH72 00666A PMO SHIELD COVER SNA 5 2 GH74 00362A MCT SHIELD DUPLEX SNA 6 GH96 00863A ELA GRAPHIC LCD 7 GH92...

Page 24: ...NAL 2SC4081 NPN 200mW UMT TP 180 3 0501 000218 Q151 TR SMALL SIGNAL 2SC4081 NPN 200mW UMT TP 180 3 0501 002202 Q102 TR SMALL SIGNAL MMBT2222AWT1 NPN 150mW SOT 323 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 ...

Page 25: ...138 R125 R CHIP 100ohm 5 1 16W DA TP 1005 2007 000138 R128 R CHIP 100ohm 5 1 16W DA TP 1005 2007 000138 R129 R CHIP 100ohm 5 1 16W DA TP 1005 2007 000138 R131 R CHIP 100ohm 5 1 16W DA TP 1005 2007 000138 R132 R CHIP 100ohm 5 1 16W DA TP 1005 2007 000138 R149 R CHIP 100ohm 5 1 16W DA TP 1005 2007 000138 R209 R CHIP 100ohm 5 1 16W DA TP 1005 2007 000140 R148 R CHIP 1Kohm 5 1 16W DA TP 1005 2007 0001...

Page 26: ...53 R176 R CHIP 22Kohm 5 1 16W DA TP 1005 2007 000153 R179 R CHIP 22Kohm 5 1 16W DA TP 1005 2007 000154 R257 R CHIP 24Kohm 5 1 16W DA TP 1005 2007 000156 R225 R CHIP 30Kohm 5 1 16W DA TP 1005 2007 000157 R117 R CHIP 47Kohm 5 1 16W DA TP 1005 2007 000157 R118 R CHIP 47Kohm 5 1 16W DA TP 1005 2007 000159 R150 R CHIP 56Kohm 5 1 16W DA TP 1005 2007 000159 R158 R CHIP 56Kohm 5 1 16W DA TP 1005 2007 0001...

Page 27: ...007142 R214 R CHIP 10Kohm 1 1 16W DA TP 1005 2007 007142 R217 R CHIP 10Kohm 1 1 16W DA TP 1005 2007 007142 R222 R CHIP 10Kohm 1 1 16W DA TP 1005 2007 007148 R143 R CHIP 3 6KOHM 5 1 16W DA TP 1005 2007 007309 R223 R CHIP 12Kohm 1 1 16W DA TP 1005 2007 007311 R102 R CHIP 22Kohm 1 1 16W DA TP 1005 2007 007311 R201 R CHIP 22Kohm 1 1 16W DA TP 1005 2007 007318 R103 R CHIP 1Kohm 1 1 16W DA TP 1005 2007 ...

Page 28: ...C286 C CERAMIC CHIP 0 015nF 5 50V NP0 TP 1005 2203 000386 C287 C CERAMIC CHIP 0 015nF 5 50V NP0 TP 1005 2203 000386 C288 C CERAMIC CHIP 0 015nF 5 50V NP0 TP 1005 2203 000386 C289 C CERAMIC CHIP 0 015nF 5 50V NP0 TP 1005 2203 000386 C290 C CERAMIC CHIP 0 015nF 5 50V NP0 TP 1005 2203 000386 C291 C CERAMIC CHIP 0 015nF 5 50V NP0 TP 1005 2203 000386 C292 C CERAMIC CHIP 0 015nF 5 50V NP0 TP 1005 2203 0...

Page 29: ...NP0 TP 1005 2203 001210 C123 C CERAMIC CHIP 8 2nF 10 16V X7R TP 1005 2203 001210 C124 C CERAMIC CHIP 8 2nF 10 16V X7R TP 1005 2203 001210 C125 C CERAMIC CHIP 8 2nF 10 16V X7R TP 1005 2203 001210 C126 C CERAMIC CHIP 8 2nF 10 16V X7R TP 1005 2203 001405 C260 C CERAMIC CHIP 22nF 80 20 25V Y5V TP 1005 2203 001416 C112 C CERAMIC CHIP 33nF 10 16V Y5V TP 1005 1 0mm 2203 001432 C110 C CERAMIC CHIP 47nF 10...

Page 30: ... CHIP 33uF 20 6 3V GP TP 3719 2404 001100 C257 C TA CHIP 33uF 20 6 3V GP TP 3719 2703 000300 L203 INDUCTOR SMD 1uH 10 0 8x1 6x0 8mm 2703 000300 L204 INDUCTOR SMD 1uH 10 0 8x1 6x0 8mm 2703 000300 L211 INDUCTOR SMD 1uH 10 0 8x1 6x0 8mm 2703 001512 L208 INDUCTOR SMD 27nH 5 1 8x1 12x1 02mm 2703 001914 L205 INDUCTOR SMD 180nH 2 1 6x0 8x0 8mm 2703 001914 L207 INDUCTOR SMD 180nH 2 1 6x0 8x0 8mm 2703 0019...

Page 31: ...LE 24dB 4 5V 2 5W 1204 001013 U403 IC MODULATOR UPC8106T SOT 23 6P 59MIL 6V 280MW 1205 001773 U303 IC MIXER RF2466 MLP 16P 4V TP CDMA FM MIXER 2007 000070 F301 R CHIP 0ohm 5 1 16W DA TP 1608 2007 000138 R310 R CHIP 100ohm 5 1 16W DA TP 1005 2007 000138 R322 R CHIP 100ohm 5 1 16W DA TP 1005 2007 000141 R456 R CHIP 2 2Kohm 5 1 16W DA TP 1005 2007 000142 R314 R CHIP 2 7Kohm 5 1 16W DA TP 1005 2007 00...

Page 32: ...5 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 2203 000254 C338 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 2203 000254 C339 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 2203 000254 C349 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 2203 000254 C350 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 2203 000254 C351 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 2203 000254 C353 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 2203 000254 C355 C CERA...

Page 33: ...3 002968 C422 C CERAMIC CHIP 0 051nF 5 50V NP0 TP 1005 2203 002968 C432 C CERAMIC CHIP 0 051nF 5 50V NP0 TP 1005 2203 005061 C352 C CERAMIC CHIP 100nF 80 20 16V Y5V TP 1005 2203 005061 C356 C CERAMIC CHIP 100nF 80 20 16V Y5V TP 1005 2203 005061 C363 C CERAMIC CHIP 100nF 80 20 16V Y5V TP 1005 2203 005061 C368 C CERAMIC CHIP 100nF 80 20 16V Y5V TP 1005 2203 005061 C439 C CERAMIC CHIP 100nF 80 20 16V...

Page 34: ...1123 F401 FILTER SAW 130 38MHz 2 847MHz TP 4 95M 2904 001136 F306 FILTER SAW 881 5MHz 25MHz 25MHz 0 9dB T 2904 001138 F402 FILTER SAW 836 50MHz 849MHz 1dB TP 849M 2904 001138 F404 FILTER SAW 836 50MHz 849MHz 1dB TP 849M 2904 001148 F310 FILTER SAW 85 380MHz 13KHz 1 5dB TP 60K 2904 001193 F309 FILTER SAW 85 38MHZ 1 8MHZ 0 3MHZ 0 2909 001082 F305 FILTER DUPLEXER 881 5MHZ 836 5MHZ 3 8 2DB 3301 001105...

Page 35: ...E 2 D I V I D E 2 I I Q Q PA PA V CO A N T C D M A 869 894M H z A M PS 869 894M H z C D M A 85 38M H Z A M PS 85 38M H Z C D M A 824 849M H z A M PS 824 849M H z IFR3000 PC S C D M A A M PS I SO IFT3000 PCS C D M A A M PS 130 38M H z D A PLL module RX A G C C D M A A M PS Q I C D M A A M PS C D M A A M PS C D M A A M PS Memory 32M 4M Codec Keypad LCD Rx t ank T x T ank PA Module ...

Page 36: ...8 1 Samsung Electronics 8 PCB Diagram 8 1 Logic Top View ...

Page 37: ...Samsung Electronics 8 2 8 2 Logic Bottom View ...

Page 38: ...8 3 Samsung Electronics 8 3 RF Bottom View ...

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