ELECTRONICS

DUAL BAND Mobile SGH-R210S
by Toko (www.gsm-free.com)

SERVICE

DUAL BAND MOBILE CELLULAR PHONE

Manual

CONTENTS
1. Exploded Views and Parts List 2. PCB Diagrams 3. Electrical Parts List 4. Block Diagrams 5. Flow Chart of Troubleshooting and Circuit Diagrams
1. Exploded Views and Parts List
1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 Main Main Parts List Travel Adapter Travel Adapter Parts List Ciger Light Adapter Ciger Light Adapter Parts List Test Jig EAR Microphone Data Kit Battery Charger

2. PCB Diagrams

2-1 2-2 Main Top Main Bottom

3. Electrical Parts List

3-1 3-2 Main Parts List Top Main Parts List Bottom

4. Block Diagrams

4-1 4-2 Main Baseband Main RF 4-2-1 RF Transmit Part 4-2-2 RF Receive Part
5. Flow Chart of Troubleshooting and Circuit Diagrams
5-1 5-2 5-3 5-4 5-5 5-6 5-7 5-8 5-9 5-10 5-11 5-12 5-13 5-14 Power ON Initial Charging Part Sim Part Microphone Part Speaker Part Key Data Input Alert Tone Ring Indicator Back Light GSM Receiver GSM Transmitter DCS Receiver DCS Transmitter

1-1 Main

1-1 1-6 1-3

1-3 7-2 7-3

7-4 7-12
Exploded Views and Parts List

1-2 Main Parts List

SEC CODE Navy Blue
GH75-01159A GH72-02666A GH72-02672A GH72-02784A GH75-01160A GH75-01161A GH59-00240B 3001-001233 GH73-00757A GH72-02984B GH92-01200A 3002-001098 GH07-00075B GH73-00758A GH75-01165A GH72-02674A GH31-00019A GH71-00505A GH70-10633A GH72-02676A GH42-00120C GH73-00759A 6001-001542 GH68-02109A GH43-00369A

Location No.

1 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-7 7-1 7-2 7-3 7-4 7-11 12

Description

MEC-FRONT COVER FRONT COVER WINDOW LCD FI KEY MEC-KEYPAD MEC-DUMMY COVER MIC SPEAKER EARPHONE COVER DOME SHEET MAIN PBA BUZZER DISPLAY LCD I/F COVER MEC-REAR COVER REAR COVER VIBRATOR BRACKET-ANT SPRING LOCKER LOCKER MAIN ANTENNA R/F COVER SCREW-MACHINE LABEL BATTERY
GH75-01159B GH72-02666B GH72-02672A GH72-02784A GH75-01160A GH75-01161A GH59-00240B 3001-001233 GH73-00757B GH72-02984B GH92-01200A 3002-001098 GH07-00075B GH73-00758B GH75-01165B GH72-02674B GH31-00019A GH71-00505A GH70-10633A GH72-02676B GH42-00120B GH73-00759B 6001-001542 GH68-02109A GH43-00369B

Dark Gray

GH75-01159C GH72-02666C GH72-02672A GH72-02784A GH75-01160A GH75-01161A GH59-00240B 3001-001233 GH73-00757C GH72-02984B GH92-01200A 3002-001098 GH07-00075B GH73-00758C GH75-01165C GH72-02674C GH31-00019A GH71-00505A GH70-10633A GH72-02676C GH42-00120A GH73-00759C 6001-001542 GH68-02109A GH43-00369C

Remark

SA SNA SNA SA SA SNA SA SA SNA SA SA SA SA SA SA SNA SA SNA SNA SNA SA SA SA SA SA

1-3 Travel Adapter

1-4 Travel Adapter Parts List

A B C D

SEC CODE
GH44-00171A GH44-00184A GH44-00171C Gh44-00171E

REMARK

CHINA EUROPE UNITED KINGDOM TAIWAN

1-5 Ciger Light Adapter

1-6 Ciger Light Adapter Parts List

DESCRIPTION

Ciger Light Adapter Code

GH44-00170A

1-7 Test Jig

TEST JIG

GH80-10508A

TEST JIG CABLE

GH39-00079A

RF CABLE

GH39-00090A

1-7-1 Test Jig

DC POWER SUPPLY
8922 or 8960 WIRELESS COMMUNICATIONS TEST SET

RF JIG CABLE

232 CABLE

Note PC

252 2203-2203-285 2203-002525 2203-002668 2203-003054 2203-003054 2203-003054 2203-003054 2203-003054 2203-005050 2203-005061 2203-005061 2203-000585 2203-000585 2203-000585 2203-005061 2203-005061 2203-005061 2203-005061 2203-005061 2203-005061 2203-005061 2203-005061 2203-005061 2203-005061 2203-005061 2203-005061 2203-005065 2203-005065 2203-005065 2203-005065 2203-005065 2203-005065 2203-005065
2203-005065 2203-005234 2203-005382 2203-005383 2203-005383 2203-005383 2203-005383 2203-005446 2203-005480 2203-005480 2203-005481 2203-005482 C749 C596 C248 C752 C753 C754 C755 C721 C450 C451 C459 C746 C751 C456 C457 C727 C202 C203 C710 C249 C220 C105 C117 C124 C145 C306 C328 C535 C708 C750 C436 C579 C446 L594 L211 L599 L200 L201 L212 L213 L406 L596
C-CERAMIC,CHIP,1000nF,+80-20%,10V,1608 C-CERAMIC,CHIP,0.0012nF,0.25pF,50V,1005 C-CERAMIC,CHIP,0.006nF,0.1pF,50V,1005 C-CERAMIC,CHIP,7pF,0.1pF,50V,NPO,TP,1005 C-CERAMIC,CHIP,7pF,0.1pF,50V,NPO,TP,1005 C-CERAMIC,CHIP,7pF,0.1pF,50V,NPO,TP,1005 C-CERAMIC,CHIP,7pF,0.1pF,50V,NPO,TP,1005 C-CERAMIC,CHIP,0.0027nF,0.1pF,50V,1005 C-CERAMIC,CHIP,33nF,10%,10V,X7R,TP,1005 C-CERAMIC,CHIP,33nF,10%,10V,X7R,TP,1005 C-CERAMIC,CHIP,47nF,10%,10V,X7R,TP,1005 C-CERAMIC,CHIP,100nF,10%,10V,X5R,TP,1005 C-CERAMIC,CHIP,100nF,10%,10V,X5R,TP,1005 C-CERAMIC,CHIP,0.18nF,5%,25V,NP0,TP,1005 C-CERAMIC,CHIP,0.18nF,5%,25V,NP0,TP,1005 C-CERAMIC,CHIP,0.0022nF,0.1pF,50V,NP0,1005 C-FILM,CHIP,470pF,5%,50V,TP,2x1.25x0.8mm C-FILM,CHIP,22nF,5%,16V,TP,2012 C-TA,CHIP,10uF,20%,10V,GP,TP,3216 C-TA,CHIP,220uF,20%,6.3V,LZ,TP,7132 C-TA,CHIP,1uF,20%,16V,GP,TP,2012 C-TA,CHIP,10UF,20%,6.3V,GP,TP,2012 C-TA,CHIP,10UF,20%,6.3V,GP,TP,2012 C-TA,CHIP,10UF,20%,6.3V,GP,TP,2012 C-TA,CHIP,10UF,20%,6.3V,GP,TP,2012 C-TA,CHIP,10UF,20%,6.3V,GP,TP,2012 C-TA,CHIP,10UF,20%,6.3V,GP,TP,2012 C-TA,CHIP,10UF,20%,6.3V,GP,TP,2012 C-TA,CHIP,10UF,20%,6.3V,GP,TP,2012 C-TA,CHIP,10UF,20%,6.3V,GP,TP,2012 C-TA,CHIP,100UF,20%,6.3V,LZ,TP,4028 C-TA,CHIP,100UF,20%,6.3V,LZ,TP,4028 C-TA,CHIP,47uF,20%,4V,LZ,TP,3216 INDUCTOR-SMD,3.3nH,0.3nH,1x0.5x0.5mm INDUCTOR-SMD,15nH,5%,1x0.5x0.5mm INDUCTOR-SMD,3.9nH,0.3nH,1.6x0.8X0.8mm INDUCTOR-SMD,82nH,5%,1.6x0.8x0.8mm INDUCTOR-SMD,68nH,5%,1.8x1.12x1.02mm INDUCTOR-SMD,47nH,5%,1.8x1.12x1.02mm INDUCTOR-SMD,47nH,5%,1.8x1.12x1.02mm INDUCTOR-SMD,5.6nH,10%,1.0x0.5x0.5mm INDUCTOR-SMD,3.9nH,10%,1x0.5x0.5mm
GRM39Y5V105Z10PT CL05C1R2CBNC C1005C0G1H060BT C1005C0G1H070BT C1005C0G1H070BT C1005C0G1H070BT C1005C0G1H070BT C1005C0G1H2R7BT C1005X7R1C333KT C1005X7R1C333KT C1005X7R1A473KT GRM36X5R104K10PT GRM36X5R104K10PT C1005CH1E181J C1005CH1E181J C1005C0G1H2R2BT ECHU1H391JX5 ECHU1C682JX5 TAJA106M010R F750J227MCCGZT TAJR105M016R ECST0JZ106R ECST0JZ106R ECST0JZ106R ECST0JZ106R ECST0JZ106R ECST0JZ106R ECST0JZ106R ECST0JZ106R ECST0JZ106R 595D107X06R3B2T 595D107X06R3B2T F950G476MAAJZTQ2 HK1005-3N3S-T LL1005-FH15NJ HK1608-3N9S-T HK1608-82NJ-T 0603CS-68NXJBC 0603CS-47NXJBC 0603CS-47NXJBC HK1005-5N6K-T HK1005-3N9K-T

298 2203-2203-327 2203-005503 2203-005552 2301-001232 2203-000609 2404-001020 2404-001083 2404-001101 2404-001105 2404-001105 2404-001105 2404-001105 2404-001105 2404-001105 2404-001105 2404-001105 2404-001105 2404-001134 2404-001134 2404-001162 2703-001178 2703-001180 2703-001257 2703-001293 2703-001514 2703-001545 2703-001545 2703-001708 2703-001735
328 2703-001750 2703-2703-2703-2703-2703-2703-2703-2703-2801-2806-2809-2901-2904-2904-2904-2909-001146 3301-3705-3709-3710-3710-3722-4302-4709-2007-2007-2007-2007-2203-2703-2703-2703-N.C POINT 361 N.C POINT 362 N.C POINT 363 N.C POINT 364 N.C POINT 365 N.C POINT 367 N.C POINT 368 N.C POINT L402 U622 L404 L600 L595 L204 L209 L597 L218 X1 U200 U100 E200 F203 F204 F200 U203 L605 CN1 J402 M1 J403 U400 BAT1 U318 R745 R746 R747 R748 C242 L201 L212 L213 C201 C413 C704 C714 C717 C728 R436 R448
INDUCTOR-SMD,2.2NH,0.3NH,1X0.5X0.5MM INDUCTOR-SMD,39nH,5%,1.0x0.5x0.5mm INDUCTOR-SMD,10NH,5%,1.0X0.5X0.5MM INDUCTOR-SMD,10nH,5%,1.0x0.5x0.5mm INDUCTOR-SMD,4.7nH,10%,1.0x0.5x0.5mm INDUCTOR-SMD,12nH,10%,1.0x0.5x0.5mm INDUCTOR-SMD,8.2nH,5%,1.0x0.5x0.5mm INDUCTOR-SMD,8.2nH,5%,1.0x0.5x0.5mm INDUCTOR-SMD,6.8nH,5%,1.0x0.5x0.5mm CRYSTAL-SMD,0.032786MHz,20ppm OSCILLATOR-VCO,1748MHz,-,50ohm,TP,2.8V OSCILLATOR-VCTCXO,13MHz,5ppm,10Kohm FILTER-EMI SMD,50V,0.3A,-,470pF FILTER-SAW,1.8425GHz,75MHz,+-37.5MHz FILTER-SAW,1.8425GHZ,75MHZ,1805-1880MHZ FILTER-SAW,225MHZ,0.16MHZ,0.7MS,TP FILTER-DUPLEXER,942.5MHZ,897.5MHZ CORE-FERRITE BEAD,AB,1kohm,1x0.5x0.5mm CONNECTOR-COAXIAL,JACK,75mohm,50ohm CONNECTOR-CARD EDGE,6P,2.54mm CONNECTOR-SOCKET IF CONNECTOR;18P,1R.0.5mm JACK-PHONE,6P,2.6PI,AG,BLK BATTERY-LI(2ND),3V,0.1MAH COUPLER-DIRECTION,897.5/1747.5MHZ R-CHIP,220ohm,5%,1/16W,DA,TP,1005 R-CHIP,220ohm,5%,1/16W,DA,TP,1005 R-CHIP,220ohm,5%,1/16W,DA,TP,1005 R-CHIP,220ohm,5%,1/16W,DA,TP,1005 C-CERAMIC,CHIP,0.5pF,0.1pF,50V,TP,1005 INDUCTOR-SMD,68NH,5%,1.6X0.8X0.8MM INDUCTOR-SMD,47NH,5%,1.6X0.8X0.8MM INDUCTOR-SMD,47NH,5%,1.6X0.8X0.8MM N.C POINT N.C POINT N.C POINT N.C POINT N.C POINT N.C POINT N.C POINT N.C POINT
LL1005-FH2N2S LL1005-FH39NJ LL1005-FH10NJ HK1005-10NJ-T HK1005-4N7K-T HK1005-12NK-T HK1005-8N2J-T HK1005-8N2J-T HK1005-6N8J-T MC-146(32.768KHZ,20P VOF1748C28KRF KT16-KEU30L-13.000M-T NFM2012R13C471R B4215 BLMG002S-5008C BLM10A102SGPT MHC-188 2-338063-2 24-8005-002-100-867 1004-0018-304 02-828DO-53BKA RB414II06N LDC21897M19D-078 RK73K1ETP221J RK73K1ETP221J RK73K1ETP221J RK73K1ETP221J CL05C0R5BBNC CIH10T68NJNC CIH10T47NJNC CIH10T47NJNC

3-2 Main Parts List Bottom
0407-001002 0501-002011 0504-001012 0504-001058 0504-001058 0504-001058 0601-001402 0601-001547 0601-001094 0601-001094 0601-001094 0601-001094 0601-001094 0601-001094 0601-001094 0601-001094 1209-001379 1405-001093 1405-001093 2007-000139 2007-000139 2007-000139 2007-000139 2007-000143 2007-000148 2007-000148 2007-000148 2007-000148 2007-000148 2007-000148 2007-000162 2007-000162 2007-000162 2007-000982 2007-001301 2007-001301 2007-001306 2007-007142 2007-007142 2007-007311 2007-007771 2203-000654 D302 Q300 U209 U204 U492 U493 LED1 LED2 D433 D434 D427 D428 D429 D430 D431 D432 U611 D411 D415 R725 R573 R572 R574 R305 R238 R240 R241 R424 R427 R651 R304 R422 R423 R624 R665 R666 R667 R617 R618 R626 R729 C655
DIODE-ARRAY,DAN222,80V,300mA,CA2-3,EM3 TR-SMALL SIGNAL,2SD2114K,NPN,200mW,SOT-23 TR-DIGITAL,DTC114YE,NPN,150MW,10K/47K TR-DIGITAL,RN4985,NPN/PNP,200mW,2.2Kohm TR-DIGITAL,RN4985,NPN/PNP,200mW,2.2Kohm TR-DIGITAL,RN4985,NPN/PNP,200mW,2.2Kohm LED,CHIP,RED/Y-GRN,1.2x1.5mm,660/570nm LED,CHIP,BLUE,1.1X0.8MM,485NM LED,CHIP,Y-GRN,0.8x1.1mm,570nm LED,CHIP,Y-GRN,0.8x1.1mm,570nm LED,CHIP,Y-GRN,0.8x1.1mm,570nm LED,CHIP,Y-GRN,0.8x1.1mm,570nm LED,CHIP,Y-GRN,0.8x1.1mm,570nm LED,CHIP,Y-GRN,0.8x1.1mm,570nm LED,CHIP,Y-GRN,0.8x1.1mm,570nm LED,CHIP,Y-GRN,0.8x1.1mm,570nm IC-ETC, LINEAR,16P,3.4V,240MW VARISTOR,14V,20A,1x0.5x0.6mm VARISTOR,14V,20A,1x0.5x0.6mm R-CHIP,220ohm,5%,1/16W,DA,TP,1005 R-CHIP,220ohm,5%,1/16W,DA,TP,1005 R-CHIP,220ohm,5%,1/16W,DA,TP,1005 R-CHIP,220ohm,5%,1/16W,DA,TP,1005 R-CHIP,4.7Kohm,5%,1/16W,DA,TP,1005 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 R-CHIP,100Kohm,5%,1/16W,DA,TP,1005 R-CHIP,100Kohm,5%,1/16W,DA,TP,1005 R-CHIP,100Kohm,5%,1/16W,DA,TP,1005 R-CHIP,5.6Kohm,5%,1/16W,DA,TP,1005 R-CHIP,68ohm,5%,1/16W,DA,TP,1005 R-CHIP,68ohm,5%,1/16W,DA,TP,1005 R-CHIP,150ohm,5%,1/16W,DA,TP,1005 R-CHIP,10Kohm,1%,1/16W,DA,TP,1005 R-CHIP,10Kohm,1%,1/16W,DA,TP,1005 R-CHIP,22Kohm,1%,1/16W,DA,TP,1005 R-CHIP,0OHM,5%,1/16W,DA,TP,1005 C-CERAMIC,CHIP,270pF,10%,50V,X7R,TP,1005
DAN222 2SD2114KT146V DTC114YE RN4985 RN4985 RN4985 CL165HR/YG-D-T SLSNNBL102TS SSCYG101TS SSCYG101TS SSCYG101TS SSCYG101TS SSCYG101TS SSCYG101TS SSCYG101TS SSCYG101TS HD155173ANPEL VC040214X500R VC040214X500R RK73K1ETP221J RK73K1ETP221J RK73K1ETP221J RK73K1ETP221J RK73K1ETP472J RK73K1ETP103J RK73K1ETP103J RK73K1ETP103J RK73K1ETP103J RK73K1ETP103J RK73K1ETP103J RK73K1ETP104J RK73K1ETP104J RK73K1ETP104J RK73K1ETP562J ERJ2GEJ680X ERJ2GEJ680X RK73K1ETP151J RK73H1ETP1002F RK73H1ETP1002F RK73H1ETP2202F ERJ2GE0R00L C1005X7R1H271KT

HD155128TF (U454)

90 deg Shift 1/2

VP40575

(U618)

RF Conector (CN1)

DCS : 270 MHz EGSM : 540 MHz

IF VCO 1080 MHz

Antenna S/W (U203)

VCTCXO (13MHz) (U100)

DCS 1710 ~ 1785 MHz (CH698 : 1747.4 MHz)

TX VCO (U200)

Loop Filter

Dual PAM (U476)

EGSM : 270 MHz DCS : 135 MHz
ITXP Phase Detector I&Q Mod. ITXN QTXP QTXN

Dual Coupler

(U318)
EGSM 880 ~ 915 MHz (CH62 : 902.4 MHz)

APCIC (U611)

RF VCO PLL1
GSM : 1150 ~ 1185 MHz DCS : 1580 ~ 1655 MHz(Rx) 1575 ~ 1650 MHz(Tx)

PLL1 RF VCO

GSM : 1150 ~ 1185 MHz PCN : 1575 ~ 1650 MHz (Tx)

SI4133-MLP28 U302

PLL2 IF VCO 1080 MHz 1080 MHz

RF Conector (CN1) 23 30

540 MHz

VP405575 U108

U618 VP40575

TXEN1 RAMPDAC

3 VCTCXO (13MHz) (U100)

IF VCO 1080MHz

4-2-1 RF Transmit Part

Antenna S/W U203

2 AFCDAC

Antenna S/W U304 3

VCTCXO 13MHz U303

HD155128TF U454

BAND Selection - GSM : Low - DCS : High
BAND Selection TXEN - GSM : Low - DCS RAMPDAC : High

HD155128TF

1710 ~ 1785MHz(DCS)
880 ~ 915MHz(EGSM) 890 ~ 915MHz(PGSM) 7 1
Dual PAM U476 Dual PAM U312
ITXP QTXP ITXN QTXN QTXP QTXN

TX VCO U200

U318 (U318)

Coupler3

Loop 15 Filter Loop Filter
TXEN1 RAMPDAC BAND Selection
VC1 VC2 VC3 VC1 VC2 VC3 VC1 Ant. S/W VC2 GSM(Tx) H L L Control VC1 VC2 DCS(Tx) L H L Ant. S/W Circuit Tx(GSM) H L Rx L L H Control Tx(DCS) L H

4,9 APC Circuit

Circuit

3VTX TXEN2

IF SAW Filter (225MHz) LC Filter (45MHz)

C212, L200

2 40,41 43

4-2-2 RF Receive Part

EGSM Path
RF Conector (CN1) -32dBm Mixer 1 -34dBm 53,54 Mixer 2 I&Q PGA Demod. Mixer 2,3 -43dBm 25 24
-50dBm (G) -54dBm (D) @ 67 kHz
1,2 -25dBm (G) -29dBm (D) @ 224.933 MHz 49,50 -22dBm (G) -25dBm (D) @ 45.067 MHz 44
5,6 -30dBm (G) -35dBm (D)

VP40575 U618

3 - 50dBm @ 947.067 MHz - 50dBm @ 1842.467 MHz 8

-51dBm

Antenna

IRXP IRXN QRXP QRXN

S/W U203

2nd Dual SAW Filter

-52dBm

-38dBm 1/4

SDATA SCLK SYNEN1

DCS Path

RF VCO
47 -6dBm @ 1172 MHz -9dBm @ 1617.4 MHz 10 EGSM : 1150 ~ 1185 MHz DCS : 1580 ~ 1655 MHz 23
Frequency = 947.067 MHz Power = - 50 dBm

-5dBm @ 1080 MHz

5-1 Power ON

'POWER ON'does not work

Check the Battery Voltage is more than 3.2V

Charge the Battery

When the "END" key is pressed, the voltage of "D304 pin1" 3.6V?

Check the Dome sheet

Yes No
U474 pin 2,3 > 3.2V Check the circuit related to U474
U619 pin 5 3.0 V ? Check the circuit related to U619
U620 pin 5 3.0 V ? Check U620 and related circuit
Check for the clock signal at R107
Check the clock generation circuit (related to U100 and Q100)
Check the initial operation
Flow Chart of Troubleshooting and Circuit Diagrams
UVIN RTC_3V3 GND ON/OFF LP2981AIM5X-3.3 C306 10UF/6.3V RTC_VCC C307 10NF NC 4 VOUT 5

+VBATT

C427 100NF

C305 100PF

D441 MCL4154

R738 1K

BAT1 RB414

C751 100NF

UVIN GND ON/OFF LP2981AIM5X-3.3 NC 4 C319 10NF C318 VOUT 2 C748 1UF 3 5

ALERT_VCC

AVCC UVIN VOUT 3 D2 D2 ON/OFF 1 R2 C579 100UF C436 100UF UR584 1K C750 10UF/6.3V ON/OFF VIN GND NC LP2981AIM5X-3.C536 10NF C535 10UF/6.3V VOUT C749 1UF 3 NC 2 GND 4 C326 10NF C328 10UF/6.3V C555 27PF 5

U474 SI3865DV

R583 100K

ON/OFF

LP2981AIM5X-3.0

One Point Contact

C587 10NF

PCB FIXING HOLES(1.9)

5-2 Initial

Initial Failure

Downloading SW is OK ? (Is CSROM signal OK ?)
After power on, check and repair the important signals of U618 as follows
The node between R661 and C712 = "H" (RST)
Check the circuit related to reset
R348 = "H" (BOOT) Resolder R348
Check all the other connection by Test S/W R440 = "H" (MSIZE)

Resolder R440

Check the circuit around LCD
R438 = "L" (EXTPROC) Resolder R438
Check the circuit around U617(EEPROM) and data stored in it Replace PBA
Q404 CSROM F_VCCW SYSRST C712 R655 _CE

R440 MSIZE

SIM_5V3V

SIMPWDN_BOOT

GPIO3 GPO2

5-3 Charging Part

Abnormal charging part
Check the J403 pin 17,18 > 4.9 V ? Replace TA

Check the U614 pin 3 > 4.9 V ? Resolder C710
R594(CHG_ON side) = "L" ? Resolder R594
Check the U614 pin 5 4.2V ?
Resolder components around U614
Q405 ZXT13P20DEGND VSENSE PROG C708 10UF 6.3V R659 82K,1% 4 VCC LTC1734ES6-4.2#TR BAT_VOLT +VBATT 6 UISENSE DRIVE C710 10UF 10V R658 100K,1% C711 100NF

DCVOLT

L:ON, H: OFF

CHG_ON

2.7K,1%

I_CHARGE

5-4 Sim Part
Phone can't access SIM card
Q402 pin4 = 3.0 V ? Check the circuit around U620
Q402 pin5 = "H" ? Replace Q402 or Replace PBA
Q402 pin 2, 3 = 3.0 V ? Replace Q402 or Resolder C434
Resoldering C718 or Replace PBA
After Power ON, Check SIMCLK Signal on J402 pin 3 in a few second
After SIM card insert, J402 pin 2 = "H(SIMRST) ?
Resoldering C764 or Replace PBA
Check the circuit around U617 (Serial EEPROM) and data stored in it
VCC SIMVCC L605 BLM10A121S QS2 D2 D2 RC434 10NF 2 (RST) SIMRST (CLK) SI1865DL SIMCLK (GND) C718 100PF C764 100PF (VPP) (SIMDATA) SIMDATA ON/OFF R1,CR430 10K (VCCSIM)

J402-1 2

C431 1UF

J402-2 3

J402-3 4

J402-4 5

J402-5 6

J402-6

SIMPWREN 6

1 FDG6323L

C719 100PF

SIM CONNECTOR

5-5 Microphone Part

Microphone does not work

U400 pin 4, 5 = short? Resolder U400
U619 pin 5 (AVCC) 3.0V? Check the circuit related to U619
Check the circuit from U618 to MIC1
Resolder the R444,R445,R446,R447, C446,C450,C451
Check the tension of MIC Module Replace the Mic or Mic Holder

RC FILTER PWI1P

5-6 Speaker Part

Speaker does not work

U400 pin 2, 3 = short Resolder U400
U400 pin 2, 3, 6 = 1.25 V ? Replace the PBA
Check the tension of the Speaker Modify the SPK pins
Is Speaker working? Replace the Speaker

SPK300

5-7 Key Data Input

Check Initial operation

When one of the keys is pushed, is it displayed on LCD

Keypad is OK ? Replace the PBA

5-8 Alert Tone

Abnormal Alert tone
Is there alert wave form on the R305 during alert tone test?

ALERT by Test S/W

Is there alert wave form on the Q300 pin 3 during alert tone test? Check the circuit related to Q300
U470 pin 5 3.3V? Check the circuit related to U470
Buzzer is ok? Change the Buzzer
BUZ300 BDT-03S BUZ+ BUZ1 2

From: U470 pin 5

RTC_3V3

D302 DAN222TL

3 R305 4.7K Q300 2SD2114KT146V C308 100NF R304 100K

From: U618

5-9 Ring Indicator
Ring Indicator LED does not work
U621 pin 5 3.0V? Check the circuit related to U621
Is Green color of 3 LEDs correctly work? Check Q408,R727,LED1
Is Red color LED of 3 LEDs correctly work? Check Q407,R726,LED1
Is Blue color LED of 3 LEDs correctly work? Check Q406,R728,LED2
LED2 SLS-NNBD102TS LED1 CL-165HR/YG-D

RQ406 DTC114YE 3

R726 390

R727 75

Q407 DTC114YE Q408 DTC114YE

BLUE_RI

RED_RI

GREEN_RI

5-10 Back Light

Backlight does not work

Backlight "ON" mode in the menu?
Select backlight "ON" mode
R575 = "H" ? GPO1 by test S/W

LCD BACKLIGHT

KEY PCB LED
Q403 pin 3 = "L" ?
Resolder R575,R579 or replace Q403
LCD backlight on ? Replace LCD
Resolder R575,R579 or Resolder Q403 END
Resolder R572,R573,R574,R725,R745, R746,R747,R748 or Replace PBA

Key PCB LED on ?

CON1(LCD LED)

KeyPAD LED

5-11 GSM Receiver
RF input : CH center freq. + 67.7 kHz Amp. : -50 dBm

Pin 8 -65 dBm

Resolder CN1

Yes U203

Pin 10 -65 dBm
Resolder & U203 Pin 10 -65 dBm

Check VC1 : L VC2 : L

Pin 1 -70 dBm

Resolder F203

Yes F204

Pin 1 -60 dBm

Resolder C234, L209, C596, L218, C582, C758, R220

Yes U454

Pin 53, 54 -60 dBm
Resolder F204, C727, L204, C600
Pin 49, 50 (225 MHz) -50 dBm
Check C481(CH+225MHz) -20 dBm C137(1080MHz) -20 dBm

Resolder U478

Pin 43, 44 (45 MHz) -55 dBm
Resolder F200, C698, C699, C494, C215, C213, L201, R223, L212, L213, C242

Pin 24, 25, 26, mV

Resolder OneC(U618), U454

Yes Check U454

Pin 32, 33 2.5 V Pin 35 0.5 V
Resolder U454 (Pin 32,33,35)

Resolder U618

5-12 GSM Transmitter

Tx On (level : 5)

Pin dBm

No U203

Check VC1 : L VC2 : H

Change or Resolder U203

No U318

No Yes

Check Ant. S/W Control Circuit

Resolder U318, C264

Check U476 : +VBATT, Pin 2 (APC) OK?

Pin 1 -10 dBm

Resolder or Change U476
Check +VBATT or APC Control

Pin 6 -10 dBm

Resolder C204, R210, R211, R203

No U200

Pin 7 0.5 V Pin 5 2.8 V Pin 3 = 0.5~2.5 V

Check U200 Pin 3. OK?

pin 30, 47 -10 dBm
Resolder U200 & Check Pin 7, 5 path

Resolder U454, U200

Pin 17, 18, 19, mV

Resolder OneC(U618)

Yes Check 454
Pin 38 2.5 V Pin 35 0.5 V
Resolder U454 (Pin35, Pin38) Check U618

5-13 DCS Receiver

Pin 1 -65 dBm
Resolder & U203 Pin 1 -65 dBm

Pin 3 -70 dBm

Pin 3 -60 dBm Resolder C248, L594, C214 L406, C235, C575

Pin 2, 3 -60 dBm

Resolder F204, C721, L595
Check C481(CH-225MHz) -20 dBm C137(1080MHz) -20 dBm
Resolder F200, C698, C699, C494 C215, C213, L201, R223, C242, L212, L213
Pin 32,33 2.5 V Pin 35 2.5 V
Resolder U454 (Pin 32, 33,35)

5-14 DCS Transmitter

Tx On (level : 0)

Check VC1 : H VC2 : L

Resolder U318, C263

Pin 8 -10 dBm

Pin 10 -10 dBm
Resolder C217, R218, R217, R204
Pin 7 2.5 V Pin 5 2.5 V Pin 3 = 0.5~2.5 V

Pin 38, Pin 35 2.5 V

GND4 GNDD2

AUXOUT

C102 10NF UVC C123 10NF R103 2.2K 3 VCC 4 R105 91K

L600 10nH

R101 10K

AFC 3 2

Q100 2SC4617

2 GND OUT

TCO-9133S(13MHz) RCLK13M R104 27K R106 1K