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2. SGH-D500 Circuit Description

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2-1

1. SGH-D500 RF Circuit Description

1) RX PART

1. ANTENNA SWITCH (U100 SWICHPLEXER)

→

Switching Tx, Rx path for GSM900, DCS1800 and PCS1900 by logic controlling.

2. ANTENNA SWITCH Control Losic (U100)

→

Truth Table

VC1

VC2

VC3

Tx Mode (GSM900)

Tx Mode (DCS1800/1900)

L(H)

Rx Mode (GSM900)

Rx Mode (DCS1800)

Rx Mode (PCS1900)

3. FILTER

To convert Electromagnetic Field Wave to Acoustic Wave and then pass the specific frequency band.

- GSM FILTER (F100)

→

For filtering the frequency band between 925 and 960 MHz

- DCS FILTER (F102)

→

For filtering the frequency band between 1805 and 1880 MHz.

- PCS FILTER (F101)

→

For filtering the frequency band between 1930 and 1990 MHz.

4. VC-TCXO (U101)

This module generates the 26MHz reference clock to drive the logic and RF.

It is turned on when the supply voltage Vcc(SYN) is applied.

After buffering a reference clock of 26MHz is supplied to the other parts of the system

through the transceiver pin CLKOUT.

5. TRANSCEIVER (U102)

This chip is fully integrated GSM GPRS quad-band transceiver with transmit baluns, loop filters and most of the

passive component in it.

And also fully integrated fractional N RF synthesizer with AFC control possibility, RF VCO with integrated supply

regulator. Semi integrated reference oscillator with integrated supply regulator.

RF Receiver front-end amplifies the E-GSM900, DCS1800 and PCS1900 aerial signal, convert the chosen channel

down to a low IF of 100kHz.

In IF section, further amplifies the wanted channel output level to the desired value and rejects DC.

2) TX PART

The transmitter is fully differential using a direct up conversion architecture. It consists of a signal side band

power up mixer. Gain is controlled by 6 dB via 3-wire serial bus programing. The fully integrated VCO and power

mixer achieve LO suppression, quadrature phase error, quadrature amplitude balance and low noise floor specification.

Output matching/balun components drive a standard 50 ohms single ended load.

Содержание SGH-D500

Страница 1: ...RS TELEPHONE SGH D500 GPRS TELEPHONE CONTENTS 1 Specification 2 Circuit Description 3 Exploded Views and Parts List 4 Electrical Parts List 5 Block Diagrams 6 PCB Diagrams 7 Flow Chart of Troubleshooting ...

Страница 2: ...Ltd Nov 2004 Printed in South Korea Code No GH68 05955A BASIC ⓒ This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law ...

Страница 3: ...S1800 Phase 1 Freq Band MHz Uplink Downlink 890 915 935 960 880 915 925 960 1710 1785 1805 1880 ARFCN range 1 124 0 124 975 1023 512 885 Tx Rx spacing 45MHz 45MHz 95MHz Mod Bit rate Bit Period 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us Time Slot Period Frame Period 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK MS Power 33dBm 5dBm 33dBm 5dBm 30d...

Страница 4: ...Bm 11 8 4dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm 2 GSM TX power class TX Power control level DCS1800 0 30 3 dBm 1 28 3 dBm 2 26 3 dBm 3 24 3 dBm 4 22 3 dBm 5 20 3 dBm 6 18 3 dBm 7 16 3 dBm 8 14 3 dBm 9 12 4 dBm 10 10 4 dBm 11 8 4dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm TX Power control level GSM900 5 33 3 dBm 6 31 3 dBm 7 29 3 dBm 8 27 3 dBm 9 25 3 dBm 10 23 3 dBm 11 21 3 dBm 12 19 ...

Страница 5: ...SYN is applied After buffering a reference clock of 26MHz is supplied to the other parts of the system through the transceiver pin CLKOUT 5 TRANSCEIVER U102 This chip is fully integrated GSM GPRS quad band transceiver with transmit baluns loop filters and most of the passive component in it And also fully integrated fractional N RF synthesizer with AFC control possibility RF VCO with integrated su...

Страница 6: ...voltage insufficient battery energy or excessive die temperature 1 2 Backlight Brightness Modulator The Backlight Brightness Modulator BBM contains a programmable Pulse width modulator PWM and FET to modulate the intensity of a series of LED s or to control a DC DC converter that drives LCD backlight This phone SGH D500 use PWM control to contrast the backlight brightness 1 3 Clock Generator The C...

Страница 7: ...t condition caused CHG_ON signal level change low to high and charger IC stop charging process 8 Audio HFR_P and HFR_N from PCF5213El1 are connected to the main speaker via analog switches MIC_P and MIC_N are connected to the main MIC as well EAR1 is the source of External Speaker YMU765 is a synthesizer LSI for mobile phones This LSI has a built in speaker amplifier for outputting sounds that are...

Страница 8: ...era DSP Chip controls the communication between ARM core and DSP core OEn WEn control the access of memory KROW and KCOL recognize the key string input status The system communicates with IrDA via IrDA_TXD IrDA_RXD It has J TAG control pins TDI TDO TCK for ARM and DSP core J SEL signal controls different access to ARM and DSP core ADC Analog to Digital Convertor receives the condition of temperatu...

Страница 9: ...d its Parts list 3 1 This Document can not be used without Samsung s authorization 1 Cellular phone Exploded View 1 QCA01 QSP01 QMP02 QCR11 QMO01 QCR11 QSC16 QPC01 QKP02 QME02 QCR16 QLC01 QSC18 QCR16 QMP01 QRE01 QBA19 QCR11 QIF01 QMI01 QME01 QAN02 QFU01 QFL01 QCK01 QVO01 QCR08 QKP01 ...

Страница 10: ...56 QCR11 SCREW 6001 001654 QCR16 SCREW 6001 001878 QLC01 LCD GH07 00611A QPC01 PCB FPCB GH41 00700A QCA01 UNIT CAMERA GH59 01635A QSC16 PMO S L SCREW CAP L GH72 17899A QSC18 PMO S L SCREW CAP R GH72 17900A QFU01 SLIDE UPPER GH75 05621A QFR01 FONT COVER GH75 05622A QVO01 KEY VOL GH75 05626A QCK01 CAM GH75 05627A QFL01 SLIDE LOWER GH75 05623A QCR16 SCREW 6001 001823 QKP01 KEYPAD MAIN GH75 05624A QKP...

Страница 11: ...loded view and its Part list 3 2 This Document can not be used without Samsung s authorization 3 Test Jig GH80 01909A 3 1 RF Test Cable GH39 00283A 3 2 Test Cable GH39 00337C 3 3 Serial Cable 3 4 Power Supply Cable 3 5 DATA CABLE GH39 00331A 3 6 TA GH44 00482A ...

Страница 12: ...1 002237 U308 0801 002294 U401 1001 001231 U601 1001 001231 U602 1001 001231 U604 1001 001231 U661 1001 001253 U662 1009 001010 U600 1109 001322 U307 1201 002213 PAM100 1202 001068 U663 1203 002837 U402 1203 003079 U403 1203 003079 U610 1203 003079 U665 1203 003568 U400 1203 003577 U503 1204 002138 U300 1205 002633 U102 1205 002636 U200 1404 001221 V500 1405 001082 TH600 1405 001082 TH601 1405 001...

Страница 13: ...71 R325 2007 000171 R404 2007 000171 R411 2007 000171 R412 2007 000172 R103 2007 000242 R204 2007 000242 R205 2007 000566 R102 2007 000566 R104 2007 000758 R500 2007 000758 R502 2007 000831 R313 2007 000831 R620 2007 000932 R116 2007 000932 R118 2007 001217 R610 2007 001217 R611 2007 001217 R612 2007 001217 R613 2007 001217 R616 2007 001217 R617 2007 001217 R623 2007 001217 R624 2007 001217 R625 2...

Страница 14: ...54 C144 2203 000679 C133 2203 000679 C301 2203 000679 C317 2203 000679 C607 2203 000725 C326 2203 000812 C102 2203 000812 C112 2203 000812 C119 2203 000812 C124 2203 000812 C150 2203 000812 C204 2203 000812 C210 2203 000812 C411 2203 000812 C705 2203 000812 C716 2203 000812 C717 2203 000812 C718 2203 000812 C719 2203 000812 C755 2203 000812 C756 2203 000854 C104 2203 000854 C115 2203 000854 C121 2...

Страница 15: ...82 C624 2203 005482 C631 2203 005509 C501 2203 005512 C311 2203 006053 C310 2203 006053 C400 2203 006053 C401 2203 006090 C402 2203 006190 C123 2203 006208 C200 2203 006208 C413 2203 006208 C416 2203 006208 C419 2203 006208 C424 2203 006208 C425 2203 006208 C615 2203 006208 C616 2203 006208 C620 2203 006208 C720 2203 006208 C721 2203 006257 C306 2203 006257 C307 2203 006257 C406 2203 006257 C414 2...

Страница 16: ...01 3709 001355 SIM400 3710 001611 IFC500 3711 005829 BTC500 3722 002269 CN600 4202 001031 ANT300 4302 001180 C408 4709 001349 U304 GH13 00025A U305 GH71 04302A ANT104 GH71 04302A ANT105 SUB SEC CODE Design LOC 0404 001262 ZD801 0501 002440 Q802 0504 001140 Q801 0505 001889 U804 0601 001819 LED801 0601 001819 LED805 0601 001819 LED806 0601 001819 LED807 0601 001819 LED808 0601 001819 LED810 0601 00...

Страница 17: ...07 007538 R818 2203 000812 C812 2203 005481 C811 2203 005482 C806 2203 005482 C814 2203 005512 C813 2203 006108 C810 2203 006208 C808 2203 006208 C809 2203 006364 C801 2203 006457 C803 2404 001105 C805 2404 001239 C807 2703 001174 L804 2703 001174 L805 2703 002313 L802 2703 002714 L800 2703 002803 L806 3708 001862 CN800 3708 002054 HDC800 3711 005801 CN802 ...

Страница 18: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 5 SGH D500 Block Diagrams 5 1 1 RF Solution Block Diagram ...

Страница 19: ...Battery Temperature AFC RAMP Charging Circuit Li Ion Battery Slim Standard PCF5213EL1 VIBRATOR SYSTEM CLOCK 26MHz RTC_CLOCK 32 768KHz KEY_BOARD RECEIVER MIC LCD RF INTERFACE D3VDD AVDD VINT PMU D2VDD Serial Data Interface I O Interface A D Interface BB INTERFACE MELODY IC 64 Poly SPEAKER IOVDD VDD_RX_TX VCC_SYN MIC_BIAS CPVDD D1VDD SIMEN GPO VCHG VSAVE SIM CARD MV319DNQ Ext SPEAKER 1G OneNAND MEMO...

Страница 20: ...SAMSUNG Proprietary Contents may change without notice 6 SGH D500 PCB Diagrams 6 1 This Document can not be used without Samsung s authorization 1 Main PCB Top Diagram ...

Страница 21: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 6 2 This Document can not be used without Samsung s authorization 2 Main PCB Bottom Diagram ...

Страница 22: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 6 3 This Document can not be used without Samsung s authorization 3 Sub PCB Top Diagram ...

Страница 23: ...V Power On does not work Change the Battery END No Yes C406 VINT 2 7V Check the PMU related to VINT No Yes Check the Clock at R403 32KHZ Resolder OSC400 No Yes C427 VDD_IO_LOW C426 VDD_IO_HIGH H Check the related circuit No Yes C403 VDD_GSM_CORE 1 8V Check the VDD_GSM_CORE circuit No Yes Check for the clock at C129 26MHz Check the clock generation circuit related to U101 No Yes Check the initial o...

Страница 24: ...R411 VDD_IO_HIGH 0 470nF C406 R406 V400 VC040205X150R _IRQ 27 _ONKEY 1 _REC1 13 _REC 2 11 _RSTH C 44 _SIMRSCD 7 _SIMRSH C 100K SIMEN 42 SIMIOCD 9 SIMIOHC 41 SIMVCC 31 VBAT 32 VCHG 29 VINT 30 VSAVE 10 2 SCL 38 SCN 37 SCP 3 SD A 43 SIMCKCD 8 SIMCKH C 40 SIMD3VBAT 45 26 OSCI 25 OSCO 6 PWREN 1 5 PWREN 2 28 REFC 23 RF12VBAT RF1VDD 22 24 RF2VDD 17 HCVDD 15 IOD2VBAT IOVDD 14 LPD1VBAT 20 19 LPVD D 12 MICB...

Страница 25: ...art of Troubleshooting This Document can not be used without Samsung s authorization 7 3 2 Initial Q200 pin 2 RSTON H Initial Failure Check the circuit related to reset END No Yes Is U308 pin 4 OK Yes Yes No Check the U308 Check the 16bit data signal memory CE Yes ...

Страница 26: ...8 GNDE G9 RESET H1 GNDE H1 0 USBDP H11 TD I G1 0 TRST G1 1 RSTBB G12 USBDM G14 VDDE 1 G1 5 SIMCLK G17 VDDVBO G1 8 CS 0 G2 USBCN F14 GNDE F15 SIMRST F17 RTCK F18 GPIOB2 F2 ADD21 F4 ADD23 F5 GPIOA9 G1 OE_R_W E2 IO28 E4 IO29 E5 IO31 E6 IO4 E7 IO7 E8 VDDE 1 E9 ADD20 F1 NC E10 DCL E11 NC E12 RSTRTC E13 VDDE 1 E14 GNDE E15 KCOL3 E17 NC E18 GNDE D2 IO24 D4 IO25 D5 VDDE 1 D6 GNDE D7 IO11 D8 IO3 D9 ADD21 E...

Страница 27: ... Samsung s authorization 7 5 3 Charging Part Check the U503 pin 6 4 9V Abnormal charging part END No Yes U503 pin 8 L No Yes Q201 pin 1 AUX_ON L No Yes Check the U503 pin 2 4 2V No Yes Check the circuit related to V_EXT_CHARGE Resolder or replace U503 Check the circuit related to AUX_ON signal Resolder or replace U503 Yes ...

Страница 28: ... PEMD1 0 2 B1 5 100K R520 R506 UDZS8 2B ZD501 100K 1 Q506 DTC144EM 1 3 2 100K 100K R508 R509 VDD_IO_HIGH 3 2 R511 18K 1 5 VOU T DTC144EM Q500 1 FDC6332L 3 G1 G2 4 GND 2 ON OFF S1 S2 6 VIN 8 _EN U505 11 GG 12 4 GND 1 ITERM PRO G 5 6 VCC _ACPR7 _CHRG 3 U503 LT4068EDD 4 2 2 BAT 9 GG 10 100NF C503 2K R510 C502 F951A106MPAAQ 2 VBAT 1K 1 R514 UDZS5 1B ZD500 R512 4 7K 1 CHG_O N END_OF_CHG AUX_O N VBUS US...

Страница 29: ...ed without Samsung s authorization 7 7 4 Sim Part SIM400 pin 1 5 H Phone can t access SIM Card Check the sim charge pump Check the SIM Card END No Yes Yes Yes No Check the Clock After Power ON Check SIMCLK Signal on pin3 of SIM400 in a few second Yes No Replace PBA After SIM card insert SIM400 pin 2 H SIM_RST Yes ...

Страница 30: ...411 VDD_IO_HIGH 0 470nF C406 R406 V400 VC040205X150R _IRQ 27 _ONKEY 1 _REC1 13 _REC 2 11 _RSTH C 44 _SIMRSCD 7 _SIMRSH C 100K SIMEN 42 SIMIOCD 9 SIMIOHC 41 SIMVCC 31 VBAT 32 VCHG 29 VINT 30 VSAVE 10 2 SCL 38 SCN 37 SCP 3 SD A 43 SIMCKCD 8 SIMCKH C 40 SIMD3VBAT 45 26 OSCI 25 OSCO 6 PWREN 1 5 PWREN 2 28 REFC 23 RF12VBAT RF1VDD 22 24 RF2VDD 17 HCVDD 15 IOD2VBAT IOVDD 14 LPD1VBAT 20 19 LPVD D 12 MICBI...

Страница 31: ...sed without Samsung s authorization 7 9 5 Microphone Part Check the connection from MIC Check the circuit from U200 to MIC Resolder MIC Resolder the C603 C609 R602 R604 R605 END No Yes Yes Yes Yes No Check U601 U602 PIN 1 H No Check the JACK_EN signal Microphone does not work Yes Check the MIC No Replace the MIC ...

Страница 32: ... 10PF MIC_BIA S C600 47PF C619 VDD_IO_HIG H R603 12PF R608 100K 10NF C62 5 C626 10NF 5PF C628 NO 6 V 2 DG201 1 U604 5 COM 3 GND 1 IN NC 4 10PF C611 C60 8 68PF C609 100NF C63 3 C63 0 9PF 18PF AVDD_HF A C602 NC VC040205X150R TH60 1 1 8PF C606 1 3 5 4 TC75S56F E U663 2 5 COM 3 GND 1 IN NC 4 NO 6 V 2 DG201 1 U661 R621 100K MIC_BIAS_B B 100NF C631 1K R60 4 4 NO 6 V 2 DG2011 U601 5 COM 3 GND 1 IN NC R60...

Страница 33: ...s not work Check the Clock signal at Pin 1 of U300 26MHz Check the clock generation circuit related to U101and U300 No Yes No Resolder or replace U303 Yes U300 pin 17 18 1 8V When U300 operate Resolder U300 No Yes No END HDC800 pin 3 5 1 8V When U300 operate Change the board to board FPCB Is Speaker working Change the Speaker No Yes Yes Yes CN701 pin 51 53 1 8V When U300 operate Resolder CN701 No ...

Страница 34: ...RQ RD 31 RST 4 28 32 LED 2 19 MTR 5 NC PLLC 6 17 SPOUT1 SPOUT2 18 15 SPVD D SPVSS 16 EQ 2 EQ 3 14 G 33 34 G G 35 36 G HPOUT L MONO 10 11 HPOUT R IOVD D D1 25 D2 D3 24 23 D4 D5 22 21 D6 D7 20 EQ 1 12 13 YMU765 U300 30 A0 1 CLKI D0 27 26 15K R314 3 9NF C326 100NF C312 C325 100N F VDD_IO_LOW C314 100NF C313 560PF 100N F C305 10V 1UF C310 C302 100NF 100N F C308 EARP_H F VBAT ANL ANR AMP_P HD 7 VIB AMP...

Страница 35: ...ting This Document can not be used without Samsung s authorization 7 13 7 Key Data Input When one of the keys is pushed is it displayed on LCD Check the Dome sheet Key Pad END No Yes Yes Check Initial Operation When one of the keys is pushed KBIO signal is OK Replace the PBA No Yes ...

Страница 36: ... 12 DIGIT9 12 12 DIGIT4 STAR1 12 DIGIT3 12 DIGIT8 12 DIGIT1 12 12 SHARP1 12 DIGIT7 12 DIGIT6 2 DIGIT2 1 KEY_COL 0 4 KEY_ROW 0 KEY_COL 4 KEY_COL 3 KEY_COL 2 KEY_ROW 1 KEY_COL 1 KEY_COL 0 KEY_ROW 0 2 KEY_ROW 2 KEY_MAP RIGHT 1 2 INT 1 2 DOWN 1 2 1 2 LEFT SOFT2 1 2 SOFT1 12 UP 1 2 CL R 12 SEN D 12 KEY_COL 3 KEY_COL 2 KEY_COL 2 4 KEY_COL 4 KEY_ROW 2 4 KEY_ROW 3 KEY_ROW 2 KEY_ROW 4 ...

Страница 37: ... Resolder U200 or change PBA END No Yes Yes Receiver does not work SPK PAD 1 5V Change the Slide board No Yes Is Receiver working Replace the Speaker No Yes No Resolder or replace U662 Yes No change U200 CN701 pin 51 53 1 5V Yes HDC200 pin 3 5 1 5V No Change the board to board FPCB Yes Check the soldering of the spaeaker wire No Modify the speaker wire soldering Yes U662 pin 4 16 1 5V ...

Страница 38: ...Chart of Troubleshooting 7 16 VBAT VDD_IO_HIG H GND 17 GND NC 21 22 NC 14 V 9 3S 2 11 4S1 13 4S2 D1 16 4 D2 D3 8 D4 12 6 U662 STG3699 2 1 2IN 15 1S1 1 1S 2 2S 1 3 5 2S2 3 4IN 10 3S1 7 C626 10NF R61 9 130K 1 R618 330K 1 HFR_N AMP_ N EARSPK_R EARSPK_COM EXTSPK_E N EAR_ P AMP_P AMP_ N SPK_ N SPK_P MELODY_SEL AMP_P HFR_P HFR_N ...

Страница 39: ...hout Samsung s authorization 7 17 9 Back Light for Color Main LCD Is LCD Contrast set on high level in the Menu Set LCD Contrast on high level END No Yes Yes Backlight does not work HDC800 pin 10 H Change the board to board FPCB No Yes U802 PIN 1 12V Check the U601 the related circuit No Yes Yes Replace the LCD Module ...

Страница 40: ...e This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 18 LCD BACKLIGHT C812 33PF 10 R819 VBAT C813 39NF 6 SW VIN 5 VOUT 1 LT3465AES6 U802 4 CTRL FB 3 2 GND NC C804 R823 NC 22uH L800 C803 220nF 50V LED800 BACKLIGHT ...

Страница 41: ...thorization 7 19 10 Key Back Light 1 Main Key Part 2 Sub Key Part C770 pin5 CN701 pin 47 H Check the CN701 or Replace PBA END No Yes Yes Sub Key LED does not work Q800 pin 3 L No Check the Q800 Yes U610 pin1 H Check the U200 related to VDD_KEY END No Yes Yes Main Key LED does not work CN800 PIN1 H Change the board to board FPCB No Yes ...

Страница 42: ...25 82 LED606 LED60 3 4 7U F C620 LED60 0 R627 100K R624 82 VBA T 3 GND N C 2 VE N 1 5 VIN VOUT 4 82 U610 LMS5214IMG 3 3 LED60 5 R617 LED601 82 R612 LED610 82 R61 0 R613 82 LED611 LED607 R61 1 82 KEY_LED_ON KEY_LED R829 VC040205X150R V802 100K R814 15K R812 LED805 R802 91 LED807 VBAT LED808 91 R803 VC040205X150R V803 LED801 R801 91 91 R807 Q802 2SC5658T2LR LED810 R806 91 LED806 91 R800 SLIDER_KEY_O...

Страница 43: ...ut Samsung s authorization 7 21 11 Camera part Camera function does not work Yes No Reconnect the camera module Check the Camera connector on Slide PCB Yes R822 1 9V No Check the HDC800 or C809 Yes C320 26MHz No Check U302 pin2 pin4 related to 26Mhz and R318 Yes Is there another problem END Replace the camera module Yes ...

Страница 44: ... K2 DVSS L5 DVSS E9 GPIO0 GPIO1 D10 D8 GPIO2 C5 DI7 DVSS M5 C8 DVSS2 M8 DVSS B3 DVSS A7 DVSS C9 DVSS D3 DVSS F3 L7 DI0 A3 B4 DI1 DI2 A4 B5 DI3 DI4 A5 B6 DI5 DI6 A6 B7 M3 APPCLK F10 AVSS G10 CLKI CLKO H10 CVDD C6 CVDD E10 CVDD L4 CVDD MV319DNQ U305 V303 VC040205X150R 100K VC040205X150R V300 R321 VDD_IO_HIGH C322 100NF C321 100NF R318 0 Y 2 Y 3 Y 4 Y 5 Y 6 Y 0 7 Y 7 S_RST RS LCD_MAIN_CS L_RD L_W R Y...

Страница 45: ... RF input CH center freq 67 7kHz Amp 50dBm Check U100 pin2 pin4 pin8 L U100 pin5 65dBm F100 pin1 67dBm U102 pin7 8 9 10 1V U102 pin29 70dBm pin30 70dBm Check ANT Switch control circuit Resolder U100 Resolder F100 C104 L102 Resolder C103 C105 L101 Check U102 pin 23 26 31 2 7V Check Resolder U102 R103 R104 RF26MHz RF PSU Part Resolder U102 R112 R113 R114 R115 1V Yes Yes Yes Yes Yes Yes Yes Yes No No...

Страница 46: ... U100 pin10 18dBm PAM100 pin16 18dBm OSC100 pin1 15dBm PAM100 pin5 11dBm Change or Resolder U100 Check ANT Switch control circuit Resolder C134 L108 C149 Resolder R114 R116 R117 U102 pin6 7 8 9 1V Yes Check PAM100 VBAT pin2 3 13 14 OK Resolder or Change PAM100 Check VBAT or PAM control signal Check Resolder RFLO signal RF13MHz RF PSU Part Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No ...

Страница 47: ...RF input CH center freq 67 7kHz Amp 50dBm Check U100 pin2 pin4 pin8 L U100 pin1 65dBm F102 pin1 67dBm U102 pin7 8 9 10 1V U102 pin35 70dBm pin36 70dBm Check ANT Switch control circuit Resolder U100 Resolder F102 C121 L107 Resolder C120 C122 L106 Check U102 pin23 26 31 2 7V Check Resolder U102 R103 R104 RF26MHz RF PSU Part Resolder U102 R112 R113 R114 R115 1V Yes Yes Yes Yes Yes Yes Yes Yes No No N...

Страница 48: ...n9 18dBm PAM100 pin18 18dBm U102 pin2 15dBm PAM100 pin5 11dBm Change or Resolder U100 Check ANT Switch control circuit Resolder L115 C135 Resolder R116 R117 R118 C147 L117 C138 C132 U102 pin7 8 9 10 1V Yes Check PAM100 VBAT pin2 3 13 14 OK Resolder or Change PAM100 Check VBAT or PAM control signal Check U102 pin23 26 31 2 7V Check Resolder RFLO signal RF26MHz RF PSU Part Yes Yes Yes Yes Yes Yes Ye...

Страница 49: ...F input CH center freq 67 7kHz Amp 50dBm Check U100 pin2 H pin4 pin8 L U100 pin3 65dBm F101 pin1 67dBm U102 pin7 8 9 10 1V U102 pin32 70dBm pin33 70dBm Check ANT Switch control circuit Resolder U100 Resolder F101 C115 L105 Resolder C112 C119 L104 Check U102 pin23 26 31 2 7V Check Resolder U102 R103 R104 RF26MHz RF PSU Part Resolder U102 R112 R113 R114 R115 1V Yes Yes Yes Yes Yes Yes Yes Yes No No ...

Страница 50: ...n9 18dBm PAM100 pin18 18dBm U102 pin2 15dBm PAM100 pin5 11dBm Change or Resolder U100 Check ANT Switch control circuit Resolder L115 C135 Resolder R116 R117 R118 C147 L117 C138 C132 U102 pin7 8 9 10 1V Yes Check PAM100 VBAT pin2 3 13 14 OK Resolder or Change PAM100 Check VBAT or PAM control signal Check U102 pin23 26 31 2 7V Check Resolder RFLO signal RF26MHz RF PSU Part Yes Yes Yes Yes Yes Yes Ye...

Страница 51: ...24 DATA 12 14 330 R108 R103 10 100PF C113 C129 100PF C121 33PF C150 NC 39PF C111 L109 C110 100NF 6 2nH L106 8 2PF 5 1 IN OUT 3 OUT 4 L107 F100 FAR F5EB 942M50 B28EH 2 GG 12nH 12nH R115 0 L105 NC C136 C112 33PF 220NF C123 R104 220K VCC_SYN 100PF C151 R114 0 C145 NC L118 100nH C115 C104 39PF 39PF R113 0 10K R101 F101 FAR F6EB 1G9600 B2BE 2 GG 5 IN 1 3 OUT OUT 4 C120 VCC_SYN 18PF 220K R102 C117 100NF...

Страница 52: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 6 4 This Document can not be used without Samsung s authorization 4 Sub PCB Bottom Diagram ...

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