Samsung SGH 600 Service Manual Download Page 10

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2-4

Samsung Electronics

2-4 POWER MANAGEMENT

2-4-1 DC/DC Converter

Our 1 cell Li-ion battery solution requires a up-converting DC/DC conversion circuit for efficiency
improvement. The device is a PWM Step-up DC/DC converter IC. Specification is as below;

¥ Vin: 2.75 V ~ 4.2 V
¥ Vout: 3.3 V ~ 4.1 V
¥ Ripple: less than 50 mVpp
¥ Efficiency: typ. 85 % (up to 96%)

2-4-2 Charger Circuitry

The simplified built-in charger circuit diagram is as below ;

Circuit Description

< Fig. 4 Built-in Charger Circuitry >

V DECTECTOR

T DECTECTOR

DC IN DECTECTOR

BAT_VOLT

Buzzer

3.6V

3.3V

3.6V

3.0V

Temperature

DC In

Charger On

SCL

SDA

Vibrator

Backlight LED

CHARGER

B.B

DC/DC

BATT

R.F

PAM

RTC

LDO

Summary of Contents for SGH 600

Page 1: ... 0 C 2ABC OK 3DEF 1 Manual GSM Mobile Cellular Phone CONTENTS 1 General Description 2 Circuit Description 3 Specification 4 Manual Adjustment Test Procedure 5 Troubleshooting 6 PCB Views 7 Electrical Parts List 8 Exploded Views and Parts List 9 Block Diagram 10 Schematic Diagrams ...

Page 2: ...Samsung Electronics Co Ltd ELECTRONICS ...

Page 3: ...he MSC would also be connected to the Home Location Register HLR the Authentication Center AC and the Equipment Identity Register EIR So the system verify that the users and equipment are legal subscriber 1 1 2 Channels Channels used in the GSM system can be divided into two classes Logical and Physical channel Physical channels can be described in terms of their frequency and time domain characte...

Page 4: ...role like a message board and is divided into two control channels PCH Paging Channel and AGCH Access Grant Channel SACCH Slow Associated Control Channel exists every 12 frames controlling and controls the TX power level and timing advance of MS transferring cell information to MS on downlink transferring the information about RX level Quality and RX level of adjacent cell on uplink FACCH Fast Ass...

Page 5: ...d the rear for normal charging 1 2 3 Travel Adaptor The travel adaptor is designed to operate the main set by supplying power to directly while charging batteries from commercial mains 1 2 4 Cigar Lighter Adaptor A cigar lighter adaptor is used to operate the main set and charger the battery from a 12 volt vehicular electrical system 1 2 5 Hands Free Car Kit The Hands Free kit provides unlimited t...

Page 6: ...1 4 Samsung Electronics General Description MEMO ...

Page 7: ...cond order low pass filter to generate an output voltage which depends on the GMSK modulation and the desired channel frequency This voltage controls the transmit VCO such that the VCO output signal centered on the correct RF channel is frequency modulated with the original GMSK data The centre frequency of the transmit VCO is offset from the UHF LO frequency by 270 MHz The OPLL acts as a tracking...

Page 8: ...r to the first receive mixer This mixer is implemented as a Gilbert cell within the HD155101BF The incoming signal at 947 MHz mixes with the UHF LO at 1172 MHz to generate a 225 MHz IF signal The IF signal passes from the mixer output via a 225 MHz IF SAW filter to the first IF amplifier A further internal Gilbert cell mixes the 225 MHz IF signal down to the 45 MHz second IF The 45 MHz output from...

Page 9: ...us system parameters such as RF control calibrations extra dial stores etc A 64 K 65 536 bit device is used This device is internally organized 8192 x 8 This device features a serial interface and software protocol allowing operation on a simple two wire bus 2 3 SIM 2 3 1 SIM Interface An interface is provided to a serial port controlling the SIM interface It can support 5V and 3V SIM interface Th...

Page 10: ...ation is as below Vin 2 75 V 4 2 V Vout 3 3 V 4 1 V Ripple less than 50 mVpp Efficiency typ 85 up to 96 2 4 2 Charger Circuitry The simplified built in charger circuit diagram is as below Circuit Description Fig 4 Built in Charger Circuitry V DECTECTOR DC T DECTECTOR DC IN DECTECTOR BAT_VOLT Buzzer 3 6V 3 3V 3 3V 3 6V 3 0V 3 0V Temperature DC In Charger On SCL SDA Vibrator Backlight LED CHARGER B ...

Page 11: ...ch has the great advantage of not consuming current Circuit Description LNA RX SAW RX SAW IF SAW 225 MHz 45 MHz LC FILTER 6 HARMONIC FILTER TX RX SWITCH ANTENNA SOCKET 947 MHz 270 MHz Active Bias HD 155101BF BRIGHT 270 MHz 902 MHz 540 MHz 45MHz 270 MHz 2 OPLL LOOP FILTER TX SAW POWER AMPLIFIER RAMP DAC DETECTOR POWER CONTROL LOOP I AGC DAC Q I Q AGC AMPLIFIER IQ DEMOD IQ MOD 90o SHIFT 2 90o SHIFT ...

Page 12: ... INTERFACE A 18 pin connector is mounted on the bottom corner of the PCB The antenna external connection is on the right hand side of this connector 2 8 KERNEL SPECIFICATION 2 8 1 FEATURES Complete Layer 1 support TDMA burst building ETSI Rec 5 02 Coding and interleaving Rec 5 03 GMSK with differential coding Rec 5 04 Programmable power template for Tx burst control AGC in Receive mode I Q inputs ...

Page 13: ...ier Power Measurement Doppler Shift Measurement and Correction Scaled 7 Bit Soft Decision I and Q component recovered from Received Data 2 9 VOCODER SPECIFICATION 2 9 1 FEATURE Complete GSM voice encoding and decoding functions DTX function Voice Activity Detection VAD output Fully asynchronous coding and decoding A law PCM conversion DTMF generation Sidetone level control Programmable microphone ...

Page 14: ...his circuit uses a 4 MHz main clock and 5V power BATTERY VOLTAGE DETECTION Battery voltage from the front port is detected at R20 R18 and measured at pin 13 MPU Battery voltage from the rear port is detected at R14 R13 and measured at pin 14 MPU BATTERY TEMPERATURE DETECTION The charger always detects the battery temperature via NTC thermistor to prevent battery thermal problems This circuit is co...

Page 15: ...f SGH 600 is 89 3 x 43 x 27 mm and the weight is 110 g 2 12 Travel Adaptor TA 2 12 1 General Description This adaptor is designed for use with a portable hand held phone HHP It is a switching mode power supply connected directly to the phone with a cable and it provides a voltage for charging a battery installed in the hand held portable phone 2 12 2 Circuit Description The input voltage range is ...

Page 16: ...ammable output level External microphone input Loudspeaker output Hands Free operation 2 13 2 Circuit Description The input voltage range is from 12V dc to 28V dc battery and input current is 10mA stanby The operating temperature is 10 60 o C and for storage temperature is 30 85 o C 5 o C The charging voltage is DC9V and charging current is MAX 600mA 2 13 3 Audio Features Microphone Sensitivity 60...

Page 17: ... 3 GMSK 3 1 9 MS Max Power 2 W 33 dBm 3 1 10 MS Min Power 0 3 W 5 dBm 3 1 11 Voice Coder Bit Rate 13 kbits sec 3 1 12 Input Output Impedance 50 3 1 13 VCO Frequency TX VCO 890 915 MHz UHF VCO 1160 1185 MHz VHF VCO 540 MHz 3 1 14 IF 1st RX IF 225 MHz 2nd RX IF 45 MHz 1st TX IF 270 MHz 3 1 15 VCTCXO Frequency 13 MHz 5 PPM 3 1 16 Operating Temperature Main Nominal 15 C 35 C Extreme 10 C spec 55 C TA ...

Page 18: ...by the training sequence in the middle of the burst The template has to meet the requirements of Fig 6 Again the noise level of 70 dBc is dependent on the actual transmitted power level If this level is below 36 dBm the absolute level applies The template is usually evaluated along with the peak power level 3 2 3 IF Filter 270 MHz LC Filter 3 2 4 TX SAW Filter Spurious signal atenuating 70 dBc Wid...

Page 19: ...requency range 935 MHz 960 MHz Gain 18 dB If Frequency range 540 MHz Input Impedance 150 Output Load 1 k Overall Sensitivity 106 dBm for 9 dB S N in 180 kHz 3 4 2 Sensitivity Reference Sensitivity Level 102 dBm Channel Width 180 kHz Input Thermal Noise 121 4 dBm Hz Ouput S N 9 dB Noise Figure 7 dB 3 4 3 Intermodulation Input Useful Signal 99 dBm Interferer 49 dBm at 800 kHz and 1600 kHz 3 4 4 Sele...

Page 20: ...3 4 Samsung Electronics Specification MEMO ...

Page 21: ...pin 7 14 1Vp_p 20KHz Check U204 J401 C223 Solder Status k Resolder Check U109 U204 C224 F200 Solder Status k Resolder Check C219 L205 C217 C218 C216 R219 Solder Status k Resolder Q200 C216 Resolder or Replace Check L207 L206 R221 C220 C170 F101 Solder Status k Resolder Resolder C172 L104 C171 Check U102 pin 42 43 44 47 48 R107 R109 C925 U839 C926 R504 Resolder or Change Check C168 C167 C164 R137 F...

Page 22: ...erC208 U202 or replace if damaged Resolder R215 C213 R212 C214 R213 C210 U206 U205 U202 U203 or replace if damaged Resolder FB100 U202 U204 or replace if damaged Resolder C147 C146 R135 R133 R134 R132 R131 C142 C138 C139 R504 C165 C927 R121 R120 R123 C130 or replace if damaged Check R208 R209 R210 C943 F201 or replace if damaged F201 Output 15 dBm U202 Input 15 dBm U202 Output 30 dBm U204 Input 30...

Page 23: ...arge the Battery Check the path from BATT to U402 Check the path from D401 to U402 DC DC convert circuit Check the clock generation circuit related to U201 and U200 U402 pin 5 3 6V when pushing pwr Key U402 pin 2 3 4 3 3V when pusging pwr Key Check for the clock siganl at U408 pin 83 Check J301 Check the initial operation END Yes No No Yes No Yes No Yes ...

Page 24: ...8 as follows U408 pin 28 H SYSRST U408 pin 77 H BOOT U408 pin 84 H DACT U408 pin 37 BUSREQ pin 75 MSIZE H U408 pin 74 H EXTPROC Pin 54 REFTXP 3 0V Pin 53 REFTXN 0V Pin 56 REFADCP 2 6V Pin 58 REFADCN 0 3V Resolder all pins of U408 Check the circuit around LCD Check the circuit around U452 E2 PROM and data stored in it END Check U843 Check R433 and related circuit Check R428 and related circuit Reso...

Page 25: ...T Checking the Menu Backlight ON mode U408 pin 76 and R426 H Is Q400 drived LED on Select backlight ON mode Check the U450 and R426 Check R425 R426 and Q400 Check the solder status of the LEDS and the related resistors END No Yes No Yes No Yes No Yes ...

Page 26: ...5 6 Samsung Electronics Troubleshooting Ring Indicator LED does not work U408 pin 106 H Check the U408 Is U403 Drived Check the U403 Check the LED END RING INDICATOR LED No Yes No Yes ...

Page 27: ...rd insert Check for the SIM CLK signal on U400 pin 1 After SIM card insert U400 pin 2 RST H Check the circuit around U412 Serial E2 PROM and data stored in it END Check the related of U402 Resolder the connection between U400 and U408 Check continuity from U408 pin 14 to U400 pin 3 Check the continuity from U408 pin 10 to U400 pin 1 Check the continuity from U408 pin 9 to U400 pin 2 SIM CARD PART ...

Page 28: ...ion Does the scanning Signals come out from pin 140 141 142 143 and 144 of U408 Resolder pin 140 141 142 143 and 144 of U408 kernel Check the bad contact on any key and clean the keypad area on the B D Resolder U408 pin 1 2 3 4 and 5 Is the key data input OK END No Yes No Yes ...

Page 29: ... pin 64 Is there alert wave form on the U405 pin 36 during alert tone test Is it present the alert wave form on the U308 pin 5 Check the circuit around U452 E2 PROM END Resolder the connection from Buzzer to U308 Check the circuit related to U307 Check the connection from U408 pin 85 to U405 pin 64 Resolder U405 pin 36 Check the circuit around U308 No Yes No Yes No Yes No Yes No Yes ...

Page 30: ...nal on U405 pin 64 Check connection from U405 pin 26 27 to MIC and MIC Check connection from U405 pin 21 22 to MIC and MIC Resolder the connection from Mic to J1001 Ear jack Check the circuit related to U307 Check the connection from U408 pin 85 to U405 pin 64 Resolder the R413 R417 R419 R420 C430 C407 and C922 Resolder the C406 C429 C426 and C425 END No Yes No Yes No Yes No Yes ...

Page 31: ...he 13 MHz clock signal on the U405 pin 64 Check the connection from U405 pin 30 32 to SPK and SPK Check the speaker volume level is appropriate END Resolder the connection from Speaker to SPK and SPK Check the circuit related to U307 Check the connection from U408 kernel pin 85 to U405 vocoder pin 64 Resolder the U405 pin 30 32 No Yes No Yes No Yes No Yes ...

Page 32: ...ng part TA is OK Is the LCD Display normal Check the voltage of U304 pin 14 15 9V Check the U303 pin 3 4 1V Check U408 pin 7 L Replace TA Resolder or replace U304 pin14 15 Resolder or replace U303 U304 Resolder or replace U408 Repair END No Yes No Yes No Yes No Yes No Yes ...

Page 33: ...U850 IC OP AMP MC34119DTB 1201 001341 U841 IC VOLFAGECOMP TC75W56FU 1202 001022 U103 U108 IC SWITCH VOL REG MIC5205 3 0BM 1203 001285 U110 U406 IC VOLTAGE REGULATOR LP2981AIM5 3 0 1203 001454 U304 IC CHARGE LT1510 5CGN 1203 001515 U311 IC VOLTAGE REGULATOR TC1015 33VCT 1203 001592 U102 IC BRIGHT HD155101BF 1204 001405 U312 IC RTC RS5C372A 1206 001009 U101 IC Synthesizer LMX2336LTMX 1209 001161 R13...

Page 34: ...P 10Kohm 1 1 16W DA TP 1005 2007 007142 R304 R CHIP 12Kohm 1 1 16W DA TP 1005 2007 007309 R307 R CHIP 7 5Kohm 1 1 16W DA TP 1005 2007 007470 R310 R CHIP 82Kohm 1 1 16W DA TP 1005 2007 007590 R303 R CHIP 270kohm 1 1 16W DA TP 1005 2007 007592 R506 R510 R CHIP 16Kohm 1 1 16W DA TP 1005 2007 007627 R505 R CHIP 14Kohm 1 1 16W DA TP 1005 2007 007630 C103 C105 C110 C112 C CHIP 100pF 5 50V TP 1005 2203 0...

Page 35: ...4 C965 C CHIP 1uF 80 20 10V TP 1608 2203 005065 C966 C967 C968 C969 C970 C945 C946 C947 C CHIP 220nF 80 20 16V TP 1005 2203 005496 C305 CAP TANTAL 6 8uF 20 16V 3528 2404 000318 C150 CAP TANTAL 1uF 20 10V 2012 2404 001017 C151 C154 C173 C316 CAP TANTAL 10uF 20 6 3V 2012 2404 001064 C961 C962 L104 Inductor 10nH 5 1608 2703 001040 L100 Inductor 8 2nH 5 1608 2703 001167 L101 Inductor 82nH 5 1608 2703 ...

Page 36: ... AMP LM7131ACM5 1201 001018 U411 IC OP AMP TLV2264AIPWLE 1201 001289 U202 IC POWER AMP PF01411B 1201 001299 U400 IC DC DC CONVERTER LTC1555IGN 1203 001289 U402 IC DC DC CONVERTER TEA1204T 1203 001402 U307 U406 IC VOLTAGE REGULATOR LP2981AIM5 3 0 1203 001454 U846 IC RESET RN5VD27CA TR 1203 001548 U408 IC KERNEL VP40524B2 1205 001327 U405 IC VOCODER VP40506B4 1205 001328 TH400 THERMISTOR 47Kohm 5 40...

Page 37: ... 2007 000932 R408 R CHIP 560Kohm 5 1 16W DA TP 1005 2007 001025 R211 R CHIP 680ohm 5 1 16W DA TP 1005 2007 001119 R210 R CHIP 30ohm 5 1 16W DA TP 1005 2007 001291 R221 R222 R CHIP 33ohm 5 1 16W DA TP 1005 2007 001292 R208 R209 R CHIP 180ohm 5 1 16W DA TP 1005 2007 001307 R521 R CHIP 820ohm 5 1 16W DA TP 1005 2007 001316 R467 R469 R470 R471 R CHIP 1 2Kohm 5 1 16W DA TP 1005 2007 001319 R464 R CHIP ...

Page 38: ... 1005 2203 001259 C424 C431 C434 C CHIP 47nF 10 16V TP 1005 2203 001432 C450 C452 C204 C CHIP 75pF 5 50V TP 1005 2203 001441 C448 C449 C454 C456 C CHIP 330pF 10 50V TP 1005 2203 002443 C460 C CHIP 560pF 10 50V TP 1005 2203 002525 C406 C429 C CHIP 150nF 80 20 16V TP 1608 2203 005015 C218 C CHIP 3 3pF 0 25pF 50V TP 1005 2203 005052 C435 C439 C461 C465 C CHIP 100nF 80 20 16V TP 1005 2203 005061 C466 ...

Page 39: ...LTER SAW FAR F5CJ 947M50 L213 2904 001094 F201 TX SAW FILTER SAFC902 5MC90T TC11 2904 001118 U204 IC SWITCH LMS30L0897H103 2909 001072 FB100 FERITE BEAD BLM31P500SPT 3301 001177 J400 SIM CONNECTOR 2 338063 2 3709 001088 M400 VIBRATOR CONNECTOR 24 8005 002 000 007 3710 001105 J401 IF CONNECTOR MQ S179 SAA 18P 4 3710 001302 J1001 EARPHONE JACK 02 699B0 53BKA 3722 001303 U205 COUPLER DCS314E 4709 001...

Page 40: ...7 8 Samsung Electronics Electrical Parts List MEMO ...

Page 41: ...arts List 8 5 Travel Adaptor 8 6 Travel Adaptor Parts List 8 7 Ciger Light Adaptor 8 8 Ciger Light Adaptor Part List 8 9 Hands Free Kit Diagram 8 10 Boost Kit 8 11 Hands Free Car Kit Option 8 11 1 Hands Free Car Kit Ass y 8 11 2 Hands Free Cradle Exploded View 8 11 3 Cradle Mechanism Part List Samsung Electronics 8 1 ...

Page 42: ...8 2 Samsung Electronics Exploded View and its Parts List 8 1 Main Exploded View 1 2 3 4 5 6 16 17 7 8 9 10 11 12 13 14 20 21 24 25 23 34 26 27 28 29 30 31 32 33 38 39 40 35 36 37 15 18 19 22 ...

Page 43: ...H61 70018A 2 15 HOUSING CAP GH72 41546A 2 16 SPONGE LCD GH73 30007A 1 17 3 x 4 KEY GH73 30004A 1 18 RUBBER BUZZER GH73 30006A 1 19 KEY PBA GH96 01126A 1 20 RUBBER MIC GH73 40684A 1 21 MIC COVER GH74 10745A 1 22 ISO TAPE GH74 40516A 1 23 SHIELD CAN GH72 41531A 1 24 MAIN PBA GH96 01095A 1 25 RUBBER CONNECTOR GH73 40639A 1 26 ANTT BRACKET GH71 10703A 1 27 MOTOR GH31 10004A 1 28 ANTENA TUBE 1 29 ANTEN...

Page 44: ...8 4 Samsung Electronics Exploded View and its Parts List 8 3 Charger Exploded View 1 2 3 4 7 8 9 10 12 11 5 6 ...

Page 45: ...EMARK 1 CHARGER UPPER DMM000043 1 2 GATE LABEL DMM500024 1 3 LED CAP DMM000053 2 4 BATTERY HOUSIN DMM000044 1 5 HANDY LOCKER DMM000046 2 6 SCREW M2 6 x 6 6003 000107 4 EA 7 SCREW M3 x 6 6003 000115 3 EA 8 PBA 1 9 DTC LOWER DMM000049 1 10 BUMPON DMM300004 4 11 SCREW M3 x 12 6003 000161 4 12 LABEL DMM500026 1 ...

Page 46: ...8 6 Samsung Electronics Exploded View and its Parts List 8 5 Travel Adaptor 8 6 Travel Adaptor Parts List Type SEC Code Remark A GH44 30548A CHINA B GH44 30549A EUROPE C GH44 30547A UNITED KINGDOM A B C ...

Page 47: ...Samsung Electronics 8 7 Exploded View and its Parts List 8 7 Ciger Light Adaptor 8 8 Ciger Light Adaptor Part List Description SEC Code Remark Ciger Light Adaptor Code GH44 30546A BLACK ...

Page 48: ...8 8 Samsung Electronics Exploded View and its Parts List 8 9 Hands Free Kit Diagram ...

Page 49: ...Samsung Electronics 8 9 Exploded View and its Parts List 8 10 Boost Kit ...

Page 50: ...nd its Parts List 8 11 Hands Free Car Kit Option 8 11 1 Hands Free Car Kit Ass y Option Code GH96 01150A Antenna Cradle Orange lgnition Brown Stereo Mute Red Vehicle Battery Black GND Clam Shell Mount Bracket Phone Micro Phone Hands free box ...

Page 51: ...Samsung Electronics 8 11 Exploded View and its Parts List 8 11 2 Hands Free Cradle Exploded View 1 2 4 6 7 10 11 14 15 16 3 5 4 8 9 12 13 18 17 7 ...

Page 52: ...LOCKER GH72 41521A 2 5 TORSION SPRING GH61 70012A 2 6 EJECTOR PIN R GH72 41524A 1 7 EJECTOR SPRING GH70 10520A 2 8 EJECTOR PIN L GH72 41523A 1 9 CLAMP GH72 41522A 1 10 SCREW M2 6 x 6 BH 6003 000107 6 11 PCB GH41 10639A 1 12 SCREW M2 x 6 BH 6003 000158 2 13 CABLE CAP GH72 41252A 1 14 CRADLE LOWER GH72 41520A 1 15 SCREW M3 x 8 BH 6001 000158 1 16 CRADLE LABEL GH68 31163A 1 17 EJECTOR GH72 41523A 18 ...

Page 53: ...filter 6 PLL1 Dual synth PLL2 RF VCO 1160 1185 MHz 890 915 MHz Ant S W P A 935 960 MHz 225 MHz 45 MHz LMX2336L VCTCXO 13MHz TCO 999 LC filter I Q Demo 45 MHz 270 MHz HD 155101BF 540 MHz 270 MHz 270 MHz 270 MHz Phase Detector 90 deg Shift 2 90 deg Shift 2 2 Loop filter TX VCO B B Block I O I O AGC TX SAW I Q Mod ...

Page 54: ...e Recognition KeyPad Graphic LCD SIM Card B B Interface DC DC Converter RF Interface Serial Data Interface 3V SIM Card 5V SIM Card Battery Voltage Battery Temperature 3V Tx 3V SYNTH 3V BRIGHT AVCC I O Interface A D Interface I O BB Filter AGC AFC PLL LDO Regulators BB 3 0V 3 6V 3 6V 3 0V RF GSM DCS VOCODER Memory Charging Circuit Li_lon Battery 3 6V GSM DCS KERNEL 5 3 3V ...

Page 55: ...uit UVLO Overcurrent Protector 2nd Regulator Reference Voltage Overheat Protector Feed Back LED MPU Filter FET Switch INPUT 9V DC FRT 4 1V FET Switch REAR 4 1V Static Current Circuit Static Voltage Circuit Battery Type Detector Charge Voltage Detector Charge Voltage Selector ...

Page 56: ...ition Stabilizer Power Control 5V Regulator DC DC Regulator Current Detector Voltage Current Feed Back MICOM DSP CODEC Volume Calibration EEPROM Control Audio Amp Speaker Microphone RX Amp TX Amp Data Communication Cradle 9 4 HFK Block Diagram ...

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Samsung SGH 600, Service Manual

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