Samsung SGH-A500 User manual

SGH-A500
SERVICE
Manual
GSMTELEPHONECONTENTS
1.Specification
2.ExplodedViewsand PartsList
3.ElectricalPartsList
4.BlockDiagram
5.PCB Diagrams
6.FlowChartofTroubleshooting and
CircuitDiagrams
GSMTELEPHONE
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1.SGH-A500 Specification
1-1
GSM900
Phase1EGSM900 Phase2DCS1800 Phase1
Freq.Band[MHz]
Uplink/Downlink 890~915 935~960 880~915 925~960 1710~1785 1805~1880
ARFCNrange1~124 0~124 &975~1023 512~885
Tx/Rxspacing 45MHz45MHz95MHz
Mod.Bit rate/
Bit Period 270.833kbps 3.692us270.833kbps 3.692us270.833kbps 3.692us
TimeSlotPeriod/Frame
Period 576.9us 4.615ms576.9us 4.615ms576.9us 4.615ms
Modulation 0.3GMSK0.3GMSK0.3GMSK
MS Power33dBm~13dBm33dBm~5dBm30dBm~0dBm
PowerClass 5pcl~15pcl5pcl~19pcl0pcl~15pcl
Sensitivity-102dBm-102dBm-100dBm
TDMAMux 8 8 8
CELL RADIUS35Km35Km2Km
1. GSMGeneralSpecification
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1-2
SGH-A500 Specification
TXPower
control levelGSM900
5 33±2 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±3 dBm
13 17±3 dBm
14 15±3 dBm
15 13±3 dBm
16 11±5 dBm
17 9±5 dBm
18 7±5 dBm
19 5±5 dBm
TXPower
control levelDCS1800
0 30±2 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
2. GSMTXpower class (@Normalcondition)
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2.SGH-A500 ExplodedViewand its Partslist
2-1
1.CellularphoneExplodedView
15 6
7
8
9
10
11
12
14
17
18
19
20
21
22
23
25
24
16
13
1
2
3
4
5
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2-2
SGH-A500 Explodedviewand its Partlist
2.CellularphonePartslist
Location
NO.DescriptionSEC CODE Remark
1FOLDER UPPER GH75-02019A
2LCDGH07-00198A
3MOTOR3101-001239
4SPEAKER 3001-001272
5FOLDER LOWER GH75-02018A
6WINDOWLCDGH72-04519A
7SCREW6001-001478
8SCREWSHEETGH68-00370C
9FRONTCOVER GH75-02017A
10 VOLUMEKEYGH75-01734A
11 KEYPADGH75-02021A
12 MAINPBAGH92-01299A
13 CONTOCONFPCB GH59-00524A
14 SHIELDCOVER GH75-02210A
15 EARJACKFPCB GH59-00525A
16 DOMESHEETGH59-00510A
17 MICGH59-00491A
18 CONNECTORCOVER GH73-01132A
19 SCREW6001-001661
20 ANTENNAGH42-00225A
21 REARCOVER GH75-02020A
22 RFTESTHOLECOVER GH73-01348A
23 RFSCREWHOLECOVER GH73-00887A
24 SCREW6001-001155
25 BATTERYGH43-00669A900mAH
GH43-00670A580mAH
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SGH-A500 Explodedviewand its Partlist
2-3
3.TestJig(GH80-01326A)
3-1.RFTestCable
(GH39-00172A)3-2.TestCable (GH39-00171A)3-3.SerialCable
3-4.PowerSupplyCable3-5.DATACABLE
(PCB086LBE)3-6.TA (GH44-00171A)
3-7.DongleLockKey
(GH80-00815A)
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3.SGH-A500 MAINElectricalPartsList
3-1
Level SEC Code Design LOC Descriptions
0GH92-01299A-PBAMAIN-SGHA500 REV1.9B BOM
1GH41-00259A-PCB-SGHA500;SGH-A500,FR-3,6L,-,1.00T,100X155
1GH71-00846A ANT1 NPR-ANTCONTACT;-,SGH-A500,C1720C,T0.1,4.35
12203-000995 C101,C436 C-CERAMIC,CHIP;0.047nF,5%,50V,NP0,TP,1005
12203-000679 C102,C105,C108,
C111 C-CERAMIC,CHIP;0.027nF,5%,50V,NP0,TP,1005
12203-001201 C103 C-CERAMIC,CHIP;0.007nF,0.5pF,50V,NP0,TP,1005
12203-000278 C104,C114 C-CERAMIC,CHIP;0.01nF,0.5pF,50V,NP0,TP,1005
12203-001124 C107 C-CERAMIC,CHIP;680pF,10%,50V,X7R,TP,1005,-
12203-005061 C109,C204,C215,
C254 C-CERAMIC,CHIP;100nF,+80-20%,16V,Y5V,TP,1005
12203-000812 C110,C113 C-CERAMIC,CHIP;0.033nF,5%,50V,NP0,TP,1005
12203-005682 C112 C-CERAMIC,CHIP;0.033nF,5%,25V,NP0,TP,0603
12203-000233 C117,C120,C322 C-CERAMIC,CHIP;0.1nF,5%,50V,NP0,TP,1005
12203-000679 C118,C119,C122,
C123 C-CERAMIC,CHIP;0.027nF,5%,50V,NP0,TP,1005
12203-000359 C121 C-CERAMIC,CHIP;0.15nF,5%,50V,NP0,TP,1005
12203-000679 C125,C126,C131,
C205 C-CERAMIC,CHIP;0.027nF,5%,50V,NP0,TP,1005
12203-005054 C127 C-CERAMIC,CHIP;0.0047nF,0.25pF,50V,NP0,TP,100
12301-001589 C129 C-FILM,CHIP;18NF,20%,16V,TP,1608,-
12404-001268 C130,C309,C604 C-TA,CHIP;10UF,20%,10V,-,TP,2.2X1.25X1.0
12203-006053 C132 C-CERAMIC,CHIP;1000NF,10%,10V,X5R,TP,1608
12404-001239 C134,C614 C-TA,CHIP;100UF,20%,6.3V,WT,TP,3.3X2.7X1.7MM
12203-000386 C201,C235 C-CERAMIC,CHIP;0.015nF,5%,50V,NP0,TP,1005
12203-000254 C203,C389,C411,
C412 C-CERAMIC,CHIP;10nF,10%,16V,X7R,TP,1005,-
12203-000679 C206,C207,C209,
C210 C-CERAMIC,CHIP;0.027nF,5%,50V,NP0,TP,1005
12203-000679 C211,C212,C213,
C214 C-CERAMIC,CHIP;0.027nF,5%,50V,NP0,TP,1005
12203-000679 C216,C218,C229,
C255 C-CERAMIC,CHIP;0.027nF,5%,50V,NP0,TP,1005
12203-005288 C220 C-CERAMIC,CHIP;0.001nF,0.1pF,50V,NP0,TP,1005
12301-001590 C222 C-FILM,CHIP;10NF,20%,16V,TP,1608,-
12203-000330 C223,C225,C231 C-CERAMIC,CHIP;0.012nF,5%,50V,NP0,TP,1005
12203-001239 C224,C227 C-CERAMIC,CHIP;0.082nF,5%,50V,NP0,TP,1005
12203-005056 C228,C234 C-CERAMIC,CHIP;0.0068nF,0.25pF,50V,NP0,TP,100
12301-001230 C230 C-FILM,CHIP;10nF,5%,16V,TP,2012,-
12203-005450 C232,C236 C-CERAMIC,CHIP;0.0056nF,0.1pF,50V,NP0,TP,1005
12203-005382 C237 C-CERAMIC,CHIP;0.006nF,0.1pF,50V,NP0,TP,1005
12203-001221 C239 C-CERAMIC,CHIP;820pF,10%,50V,X7R,TP,1005,-
12203-002443 C241,C312,C226 C-CERAMIC,CHIP;0.33nF,10%,50V,X7R,TP,1005
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SGH-A500 ElectricalPartsList
3-2
Level SEC Code Design LOC Descriptions
12203-005796 C246,C248,C605,
C606 C-CERAMIC,CHIP;2200nF,10%,10V,X7R,TP,2012
12203-006090 C249,C601,C602 C-CERAMIC,CHIP;10000NF,10%,6.3V,X5R,TP,2012
12203-003027 C250 C-CERAMIC,CHIP;0.82nF,5%,50V,NP0,TP,1608
12203-005065 C301 C-CERAMIC,CHIP;1000nF,+80-20%,10V,Y5V,TP,160
12203-005050 C302 C-CERAMIC,CHIP;0.0018nF,0.25pF,50V,NP0,TP,100
12203-005482 C303,C310,C315,
C317 C-CERAMIC,CHIP;100nF,10%,10V,X5R,TP,1005,-
12203-005717 C304,C305,C306,
C307 C-CERAMIC,CHIP;0.027nF,5%,25V,NP0,TP,0603
12203-005480 C311 C-CERAMIC,CHIP;33nF,10%,10V,X7R,TP,1005,-
12203-005509 C313 C-CERAMIC,CHIP;330nF,+80-20%,10V,Y5V,TP,1005
12203-000438 C316 C-CERAMIC,CHIP;1nF,10%,50V,X7R,TP,1005,-
12203-000628 C318 C-CERAMIC,CHIP;0.022nF,5%,50V,NP0,TP,1005
12203-000679 C319,C321,C325,
C439 C-CERAMIC,CHIP;0.027nF,5%,50V,NP0,TP,1005
12203-005717 C320 C-CERAMIC,CHIP;0.027nF,5%,25V,NP0,TP,0603
12203-000885 C330 C-CERAMIC,CHIP;4.7nF,10%,25V,X7R,TP,1005,-
12203-000854 C401 C-CERAMIC,CHIP;0.039nF,5%,50V,NP0,TP,1005
12203-005061 C404,C408,C410,
C413 C-CERAMIC,CHIP;100nF,+80-20%,16V,Y5V,TP,1005
12203-002525 C407 C-CERAMIC,CHIP;0.56nF,10%,50V,X7R,TP,1005
12404-001105 C409,C432,C501 C-TA,CHIP;10UF,20%,6.3V,GP,TP,2012
12203-005061 C414,C416,C417,
C418 C-CERAMIC,CHIP;100nF,+80-20%,16V,Y5V,TP,1005
12203-000425 C423,C428 C-CERAMIC,CHIP;0.018nF,5%,50V,NP0,TP,1005
12404-001281 C430,C431 C-TA,CHIP;22UF,20%,6.3V,WT,TP,2012
12203-000679 C443,C444,C448,
C450 C-CERAMIC,CHIP;0.027nF,5%,50V,NP0,TP,1005
12404-001088 C445 C-TA,CHIP;2.2uF,20%,6.3V,GP,TP,2012,-
12203-005061 C447,C449,C477,
C478 C-CERAMIC,CHIP;100nF,+80-20%,16V,Y5V,TP,1005
12203-000679 C479 C-CERAMIC,CHIP;0.027nF,5%,50V,NP0,TP,1005
12203-005061 C480,C502 C-CERAMIC,CHIP;100nF,+80-20%,16V,Y5V,TP,1005
12203-000940 C503 C-CERAMIC,CHIP;470pF,10%,50V,X7R,TP,1005,-
12203-005055 C510 C-CERAMIC,CHIP;0.0056nF,0.25pF,50V,NP0,TP,100
12203-005796 C607,C608,C609,
C610 C-CERAMIC,CHIP;2200nF,10%,10V,X7R,TP,2012
12203-005796 C611 C-CERAMIC,CHIP;2200nF,10%,10V,X7R,TP,2012
12203-005482 C613 C-CERAMIC,CHIP;100nF,10%,10V,X5R,TP,1005,-
12203-001598 C615 C-CERAMIC,CHIP;2200nF,+80-20%,16V,Y5V,TP,201
14302-001130 C617 BATTERY-LI(2ND);3V,0.1MAH,-,-,3.1V,-
12203-005496 C630 C-CERAMIC,CHIP;220nF,+80-20%,10V,Y5V,TP,1005
12203-006093 C634 C-CERAMIC,CHIP;1000NF,+80-20%,6.3V,Y5V,TP,10
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3-3
SGH-A500 ElectricalPartsList
Level SEC Code Design LOC Descriptions
13710-001866 CN301 CONNECTOR-SOCKET;3P,-,2.0MM,-,AU
13711-005151 CN302 CONNECTOR-HEADER;NOWALL,16P,2R,0.5MM,-,AU
13710-001611 CN303 CONNECTOR-SOCKET;18P,1R,0.5mm,SMD-A,AUF
13709-001187 CN401 CONNECTOR-CARDEDGE;6P,2.54MM,SMD-A,-
13705-001242 CON101 CONNECTOR-COAXIAL;-,JACK,100MOHM,50OHM,-
10404-001186 D101 DIODE-SCHOTTKY;BAT62-02W,40V,40MA,SCD80,TP
12011-001417 F101,F102 R-NETWORK;5.77/870OHM,-,0.04W,F,CHIP,4P,TP
14709-001144 F103 COUPLER-DIRECTION;897.5/1747.5MHZ,19DB/14DB
12011-001419 F104 R-NETWORK;44.8/131OHM,-,0.04W,F,CHIP,4P,TP
12011-001363 F105 R-NETWORK;50ohm,-,0.04W,-,CHIP,4P,TP
12904-001382 F201 FILTER-SAW;1.8425GHZ,-,2.2DB,TP,75MHZ/3.2DB,
12904-001383 F202 FILTER-SAW;942.5MHZ,-,1.8DB,TP,35MHZ/3.3DB,-
12904-001397 F204 FILTER-SAW;360MHZ,-,67.7KHZ/1.5DB,TP,3.3DB,-
12703-002198 L101 INDUCTOR-SMD;10NH,5%,1.0X0.5X0.5MM
13301-001362 L103,L213 CORE-FERRITE
BEAD;AB,1kohm,1x0.5x0.5mm,50mA,TP,FER
12703-002369 L104 INDUCTOR-SMD;1.5NH,0.3NH,1.0X0.5X0.5MM
13301-001336 L105,L601 CORE-FERRITE
BEAD;AB,220ohm,2x1.25x0.85mm,2000mA,T
12703-001802 L201 INDUCTOR-SMD;33UH,20%,2.0X1.25X1.25MM
12703-001944 L202,L203 INDUCTOR-SMD;27nH,10%,1.0x0.5x0.5mm
12703-001544 L204 INDUCTOR-SMD;39nH,5%,1.7x1.14x1.02
12703-001737 L205 INDUCTOR-SMD;2.7nH,0.3nH,1x0.5x0.5mm
12703-001233 L206 INDUCTOR-SMD;8.2uH,10%,1.6x0.8x0.8mm
12703-001178 L207,L208 INDUCTOR-SMD;3.3nH,0.3nH,1x0.5x0.5mm
12703-001970 L211 INDUCTOR-SMD;18nH,5%,1.0x0.5x0.5mm
12703-001685 L218 INDUCTOR-SMD;82nH,5%,1.7x1.14x1.02mm
12703-000172 L602 INDUCTOR-SMD;22UH,10%,2.5X3.2X2MM
10601-001540 LED13 LED;CHIP,BLUE,1.1X0.8MM,485NM
10601-001402 LED14 LED;CHIP,RED/Y-GRN,1.2x1.5mm,660/570nm
10601-001547 LED501,LED502,
LED503 LED;CHIP,BLUE,1.1X0.8MM,468NM
10601-001547 LED504,LED505,
LED506 LED;CHIP,BLUE,1.1X0.8MM,468NM
10601-001547 LED507,LED508,
LED509 LED;CHIP,BLUE,1.1X0.8MM,468NM
10601-001547 LED510,LED511,
LED512 LED;CHIP,BLUE,1.1X0.8MM,468NM
10601-001547 LED513,LED514,
LED515 LED;CHIP,BLUE,1.1X0.8MM,468NM
10601-001547 LED516 LED;CHIP,BLUE,1.1X0.8MM,468NM
12806-001297 OSC101 OSCILLATOR-VCO;1748MHZ,-,50OHM,TP,2.8V,40MA
12806-001285 OSC201 OSCILLATOR-VCO;1.320GHZ,-,50OHM,TP,2.75V,11
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SGH-A500 ElectricalPartsList
3-4
Level SEC Code Design LOC Descriptions
12809-001264 OSC202 OSCILLATOR-VCTCXO;13MHZ,-,10KOHM//10PF,TP,
12801-003856 OSC401 CRYSTAL-SMD;0.032768MHZ,20PPM,28-ACP,7PF,6
10504-001133 Q103 TR-DIGITAL;BCR135T,NPN,250MW,10K/47K,SC-75,T
10504-001134 Q502,Q503,Q506 TR-DIGITAL;BCR133T,NPN,250MW,10K/10K,SC-75,
10502-001201 Q601 TR-POWER;ZXT13P20DE6,PNP,1100MW,SOT-23-6,T
10504-001122 Q602 TR-DIGITAL;DTC123JE,NPN,150MW,17/26,EMT3,TP
12007-001298 R101 R-CHIP;51ohm,5%,1/16W,DA,TP,1005
12007-000140 R107,R113,R114,
R202 R-CHIP;1Kohm,5%,1/16W,DA,TP,1005
12007-000775 R108,R450,R453 R-CHIP;33Kohm,5%,1/16W,DA,TP,1005
12007-001311 R109 R-CHIP;270ohm,5%,1/16W,DA,TP,1005
12007-000139 R110,R111,R569 R-CHIP;220ohm,5%,1/16W,DA,TP,1005
12007-007771 R118,R204,R205,
R206 R-CHIP;0OHM,5%,1/16W,DA,TP,1005
12007-001301 R121 R-CHIP;68ohm,5%,1/16W,DA,TP,1005
12007-000140 R203,R211,R213,
R301 R-CHIP;1Kohm,5%,1/16W,DA,TP,1005
12007-000146 R207,R216,R218,
R222 R-CHIP;6.8Kohm,5%,1/16W,DA,TP,1005
12007-007313 R208 R-CHIP;6.8Kohm,1%,1/16W,DA,TP,1005
12007-007309 R209 R-CHIP;12Kohm,1%,1/16W,DA,TP,1005
12007-000148 R212,R410,R502 R-CHIP;10Kohm,5%,1/16W,DA,TP,1005
12007-001320 R215 R-CHIP;1.8Kohm,5%,1/16W,DA,TP,1005
12007-000173 R220,R221 R-CHIP;22ohm,5%,1/16W,DA,TP,1005
12007-000142 R225 R-CHIP;2.7Kohm,5%,1/16W,DA,TP,1005
12007-000153 R226,R418 R-CHIP;22Kohm,5%,1/16W,DA,TP,1005
12007-000141 R227,R427,R412 R-CHIP;2.2Kohm,5%,1/16W,DA,TP,1005
12007-000140 R302,R303,R304,
R306 R-CHIP;1Kohm,5%,1/16W,DA,TP,1005
12007-000162 R305,R411,R416 R-CHIP;100Kohm,5%,1/16W,DA,TP,1005
12007-000140 R307,R604,R610 R-CHIP;1Kohm,5%,1/16W,DA,TP,1005
12007-000164 R308,R402 R-CHIP;150Kohm,5%,1/16W,DA,TP,1005
12007-000155 R309,R310 R-CHIP;27Kohm,5%,1/16W,DA,TP,1005
12007-007771 R312,R313,R405,
R414 R-CHIP;0OHM,5%,1/16W,DA,TP,1005
12007-000156 R315,R317,R408 R-CHIP;30Kohm,5%,1/16W,DA,TP,1005
12007-000159 R330 R-CHIP;56Kohm,5%,1/16W,DA,TP,1005
12007-000152 R340,R603 R-CHIP;20Kohm,5%,1/16W,DA,TP,1005
12007-007193 R403,R404 R-CHIP;5.1OHM,5%,1/16W,DA,TP,1005
12007-000758 R409 R-CHIP;330Kohm,5%,1/16W,DA,TP,1005
12007-000566 R413 R-CHIP;220Kohm,5%,1/16W,DA,TP,1005
12007-007200 R415 R-CHIP;2.4OHM,5%,1/16W,DA,TP,1005
12007-000242 R428,R429 R-CHIP;1.5Kohm,5%,1/16W,DA,TP,1005
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3-5
SGH-A500 ElectricalPartsList
Level SEC Code Design LOC Descriptions
12007-000170 R452 R-CHIP;1Mohm,5%,1/16W,DA,TP,1005
12007-001290 R501,R503,R522,
R523 R-CHIP;24ohm,5%,1/16W,DA,TP,1005
12007-007014 R506 R-CHIP;51KOHM,5%,1/16W,DA,TP,1005
12007-001307 R512,R513,R520,
R521 R-CHIP;180ohm,5%,1/16W,DA,TP,1005
12007-001307 R524,R525,R526,
R527 R-CHIP;180ohm,5%,1/16W,DA,TP,1005
12007-001307 R528,R529,R530,
R531 R-CHIP;180ohm,5%,1/16W,DA,TP,1005
12007-000138 R567 R-CHIP;100ohm,5%,1/16W,DA,TP,1005
12007-003030 R568 R-CHIP;91ohm,5%,1/16W,DA,TP,1005
12007-007483 R602 R-CHIP;154Kohm,1%,1/16W,DA,TP,1005
12007-008500 R606 R-CHIP;0.1OHM,1%,1/4W,DA,TP,3216
12007-000157 R609 R-CHIP;47Kohm,5%,1/16W,DA,TP,1005
12007-008117 R611 R-CHIP;2.7Kohm,1%,1/16W,DA,TP,1005
12909-001174 U101 FILTER-DUPLEXER;942.5MHZ,897.5MHZ,1.2/1.4DB,
11209-001429 U102 IC-ETC,
LINEAR;PCF5079HK/C/1,SOT-650,10P,118MIL,PL
11201-001754 U103 IC-POWER
AMP;-,MCM,16P,-,-,-,PLASTIC,7V,-,-25TO+10
10504-001130 U104,U105,U605 TR-DIGITAL;BCR35PN,NPN/PNP,250MW,10K/47K,SO
11205-002203 U201 IC-TRANSCEIVER;PMB6253V1.1,VQFN,48P,7X7MM,P
11109-001207 U302 IC-ETC.
MEMORY;1380,32MX16/4MX16BIT,CSP,72P,-,85NS
11204-001811 U303 IC-MELODY;YMU759-QE2,QFN,32P,-,PLASTIC,6V,-,
10902-001560 U401 IC-MICROPROCESSOR;-,16BIT,P-LFBGA-200-1,200
11202-001036 U410 IC-VOLTAGE
COMP.;75W56,SSOP,8P,90MIL,DUAL,+-7V,CMO
11009-001010 U501 IC-HALL EFFECT
S/W;A3212ELH-SAMSUNG,SC-59A,3P,82MI
11203-002644 U601 IC-BATTERY;PMB6810V1.73,VQFN,40P,6.5X5.5MM,P
11203-002127 U602 IC-BATTERY;1734,SOT-23,6P,150MIL,PLASTIC,4.7/5
11203-001518 U603 IC-VOLTAGE
REGULATOR;5219,SOT-23,5P,63MIL,PLASTIC,
11405-001082 V1,V3,V4,ZD301 VARISTOR;5.6V,20A,1x0.5x0.6mm,TP
13404-001152 VOL_DN,VOL_UPSWITCH-TACT;12V
DC,20mA,160gf,4.5x4.0x2.3mm,SPST
10406-001104 ZD302,ZD500,ZD5
01 DIODE-TVS;ESDA6V1-5W6,6.1/-/7.2V,100W,SOT-32
10406-001144 ZD304 DIODE-TVS;ESDA6V1-4F1,6.1/-/7.2V,150W,CSP
10406-001104 ZD502,ZD503 DIODE-TVS;ESDA6V1-5W6,6.1/-/7.2V,100W,SOT-32
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4-1
4.SGH-A500 BlockDiagram
SPEAKER
GSM RX SAW
FILTER
RF SWITCH
GSM
DCS
ANTENNA
CMOS
HBT
HBT
COUPLER
DCS RX SAW
FILTER
ATTENUATER
-1dB
ATTENUATER
-7dB
ATTENUATER
-1dB
vc1
vc2
RF switch
control
logic
TX900_RX1800
TX1800_RX900
VRF1
coupling 값
GSM : -19dB
DCS : -14dB
DCS_TX
GSM_TX
DCS_RX
GSM_RX
APC
APC IC
VS2
TXONPA
TX_POWER
VRF1
VCG
_VINT
Tx VCO
out1(GSM)
out2(DCS)
supply
select
VBAT
ATTENUATER
-6dB
control save
TIC_FD
VTIC_OUT
Rx VCO
RF_OUT
BSEL
VTUNE
loop filter
IF SAW FILTER(360MHz)
TCXO(13MHz)
vcc
out
VT
(1805~1880MHz)
(935~960MHz)
GSM Band
(890~915MHz)
DCS Band
(1710~1785MHz)
Modulator
Filter
(424 or 428MHz)
Tx 시
GSM Band (1314~1339MHz)
DCS Band (1286~1361MHz)
Rx 시
GSM Band (1295~1320MHz)
DCS Band (1445~1520MHz)
VRF1
TXONPA
VRF2
AFC
OAK+
Equalizer
A51/52
GMSK
Modulator
DAC
DAC
ADC
ADC
Power
Mgmt.
RTC
JTAG/
Debug
Speech&
Channel
Decoding
HR/FR/EFR
Viterbi
HW Accelerator
Speech&
Channel
Encoding
HR/FR/EFR
E-GOLD+(PMB2880)
DAC
ADC
Control
System Interface
C166CBC
RF Output
Power Control
10bit DAC
GSM
Scheduler
DAC
Clock
Generation
F13M
PLLON
PAOUT
TX900_RX1800
TX1800_RX900
TXONPA
TEMP
M
U
X
Osc
32.768kHz
F32KRTCOUTIF32KX RTCOUT
XTAL
32.768kHz
I2C bus
interface control
INTOUT RESET VSSDVDDCH
Reference
LINT(LDO)
LANA(LDO)
LSIM(LDO)
LRTC(lin.)
SDBB
(step-
down)
VBATS
CHG
charge
control
VCHC VCHS VDDPW SW FB VSSPW VDDA VINT VANA V3V VRTCVSIM
LRF1(LDO) LRF2(LDO)
VDDRF VRF1VRF2 VSSA BYP IREF VSSR
T1 AC
adapter
Rsence
154k
100nF
E-POWER
VBAT
Keypad
SIM
CARD MEMORY
YAMAHA
CHIP
2EPP1
EPN1
MICP1
MIC.
Keypad
Interface
10
KP0
~KP9
HEAD
SET
VBAT
EPP2
MICP2
POWER ON
MOTOR
FLIP IC
CCRST
VSIM
CCLKCCIO
DISP_RST
DISP_RS
DISP_CS
DISP_SCLK
DISP_SID
LED_CTL
MOTOR_EN
VBAT
FLIP_SNS
VINT
D0~D7
LCD
module
VBAT
EPP1
EPN1
POLY_EN
POLY_CLK
POLY_IRQ
POLY_RST
RDQ
WRQ
A(1)
VBAT
EPP2 V3V A(0)~
A(22) D(0)~
D(15)
WRQ
RDQ
FLASH_WR FLASH_SEL
SRAM_
SEL BHEQ
RESETQ
F-RY_BY
V3V
RTCOUT
SCL SDA VCXOEN
EP_SDA
EP_SCL
VCXOEN
ON
EP_INT
VRTC
VANA
VRF2
SMARTI+
VC-TCXO-208C
TFS360F
SAFSE1G84KA0T00R1S
SAFSD942MCM0T00R1S
LMC33-07A0524A
PCF5079HK
VOF1748c28DKB
MQE959A1G32
LRS1380
CX77301
YMU759-QE2
VDD_SD
RX1X
RX3
RX3X
VCC6
MIXI
MIXIX
LNAON
VCC2
RX2
GNDLNA
RX1
CPTX
VCXO
VCXOX
VCXOEN
TEMP
IFI
IFIX
LNAGAIN
CPLO2
VCC3 MOX
MO
GND
CLK EN DA
CPLO1
VDD EFIL
FL
EFILX LO1X
LO1
OWS
GND
GND
BX
B
AX
A
VCC4/5
REFR
PLLON
BSW
FSYS
VCCVCXO
GND
VCXO
13MHz
TEMP
Div.
by
13/26
Div.
by 4
Div.
by 4
IF-
PLL
PFD
RF-
PLL
LO-Buffer
LNA1800
LNA900
LO-Buffer
LO-Buffer
RX-IRM
GSM1800
RX-IRM
GSM900
TX-Mixer
VCO
BBPGC
BBPGC
3-WIRE-BUS
IFPGC
Rx-Demod
Tx-mod
RX-TX-LO2
Tx900_Rx1800 Tx1800_Rx900 Switchplexer State Switchplexer Truth Table
VC1 VC2
HL
H H
LH
H H
L L
EGSM_Tx
EGSM_Rx
DCS_Tx
DCS_Rx
NO R-Tx L
L
L L
L
L
H
H
H
H
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5-1
5.SGH-A500 PCB Diagrams
1.MainPCB TopDiagram
ANT1
C101 C102
C103
C104C110
C111
C112
C113 C114
C115
C121
C122
C126
C129
C131
C132
C134
C201
C202
C203
C204 C209
C210 C211 C212
C213
C214
C215
C216
C219
C220
C222
C223
C224
C225
C226
C227
C228
C229
C230
C231
C232
C233
C234
C235
C236
C237
C239
C241
C246
C248
C249
C250
C254
C255
C301
C302
C304
C305 C306
C307
C309
C310 C315
C316
C317
C320
C389
C410
C423 C428
C430
C431
C504
C601
C602
C604
C605
C606 C607 C608 C609 C610 C611
C614
C615
C617
C634
CN301
CN302
CN303
CN401
CN501
CON101
D101
F101 F102
F103
F104
F105
F201
F202
F204
L101
L103
L104
L201
L202
L203
L204
L205 L206
L207
L208
L210
L211
L218
L601
L602
OSC101
OSC201
OSC202
OSC401
Q601
R101
R107
R109
R110 R111
R121
R204
R205
R206
R207
R208
R209
R212
R215
R216
R218
R220
R221
R222
R225
R226
R227
R301 R302
R303
R304
R306
R307
R312
R315
R317
R403
R404
R405
R414
R603
R606
R610
S1 S2
S3 S4
U101
U102
U103
U201
U302 U303
U401 U601
U602
U605
V1
V3
VOL_DNVOL_UP
ZD302
ZD304
ZD503
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SGH-A500 PCB Diagrams
5-2
2.MainPCB BottomDiagram
ANT1
C101 C102
C103
C104C110
C111
C112
C113 C114
C115
C121
C122
C126
C129
C131
C132
C134
C201
C202
C203
C204 C209
C210 C211 C212
C213
C214
C215
C216
C219
C220
C222
C223
C224
C225
C226
C227
C228
C229
C230
C231
C232
C233
C234
C235
C236
C237
C239
C241
C246
C248
C249
C250
C254
C255
C301
C302
C304
C305 C306
C307
C309
C310 C315
C316
C317
C320
C389
C410
C423 C428
C430
C431
C504
C601
C602
C604
C605
C606 C607 C608 C609 C610 C611
C614
C615
C617
C634
CN301
CN302
CN303
CN401
CN501
CON101
D101
F101 F102
F103
F104
F105
F201
F202
F204
L101
L103
L104
L201
L202
L203
L204
L205 L206
L207
L208
L210
L211
L218
L601
L602
OSC101
OSC201
OSC202
OSC401
Q601
R101
R107
R109
R110 R111
R121
R204
R205
R206
R207
R208
R209
R212
R215
R216
R218
R220
R221
R222
R225
R226
R227
R301 R302
R303
R304
R306
R307
R312
R315
R317
R403
R404
R405
R414
R603
R606
R610
S1 S2
S3 S4
U101
U102
U103
U201
U302 U303
U401 U601
U602
U605
V1
V3
VOL_DNVOL_UP
ZD302
ZD304
ZD503
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6.SGH-A500 FlowChartofTroubleshooting and CircuitDiagrams
6-1
1. Power On
"poweron"doesnotwork
Downloadagain
CheckthePartsconnected
withVbatdirectly
END
No
Yes
checkthecurrentconsumption
about30mA<I<500mA?
ChecktheBatteryvoltage
morethan3.3V ?
Yes
No
checkthecurrentconsumption
morethan1A?
No
Yes
ChargetheBattery
ChecktheOutputvoltage
ofE-power(U601).;
-VANA(pin#3)=2.39V
-VINT(pin#24)=2.62V
-VSIM(pin#21)=2.85V
-V3V(pin#22)=2.85V
-VRF2(pin#37)=2.85V
NoChecktheU601
Checktheclocksignal
atpin#3ofOSC202;
FREQ,=13MHz ?
Yes
NoChecktheOSC202 &clockcircuit
ChecktheU401 &U302 &initial operation
Yes
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6-2
SGH-A500 FlowChartofTroubleshooting and Circuit Diagrams
2. Initial
3. SimPart
Initial Failure
ChecktheU601
END
Yes
checkthesignal at the
pin17 ofU601 is"Low
→High"whenthephone
isbooton
Checkthepin38
ofU601 is"High"
Yes
No
No
ChecktheU401
Checkthepin4of
OSC202 isaround
2.85V
NoCheck&resoldertheOSC202,R221,
U601
ChecktheLCDconnector
CN302,LCDFPCB
assemblystatus
Yes
NoResolderCN302,Re-assembly
LCDFPCB
Yes
Checkthepin1ofCN401
Voltage== 3V ? Checkthecircuitrelated toU601
Phonecan'taccess SIMCard
ChecktheSIM
connector'sconnectionto
SIMCard
CheckthecircuitaroundU601 output
andVoltagesupplycircuitry
CheckthecircuitaroundCN401 input
circuitry
End
ResoldertochangeCN401
Checkthecircuitrelated to CN401
Checkthecircuitrelated toU601
No
Yes
Yes
No
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SGH-A500 FlowChartofTroubleshooting and Circuit Diagrams
6-3
4. ChargingPart
5. MicrophonePart
Abnormal chargingpart
ReplaceTA& Checkthe
CN303
END
Yes
checkthepin#17,18
ofCN303;-"TA+"is
>= 5V
Checkthepin#4
ofU601 ;low?No
No
ChecktheU601
Yes
Checkthepin#3
ofQ601 ;low?NoChecktheQ601
Checkthepin#5
ofU602 ;3.2V ~
4.2V ?
NoChecktheU602
Yes
Yes
Microphone doesnot
work
checkthesoldering
statusofmicrophoneResoldermicrophone
Checkthe
referencevoltage
onmicpath
C444 =1.5V
ResolderorChange
C477,C478,R427
IsmicrophoneOK?changemicrophone
END
Yes
Yes
Yes
No
No
No
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6-4
SGH-A500 FlowChartofTroubleshooting and Circuit Diagrams
6. Speaker Part
Speakerdoesnotwork
Checkthesolderingstatusof
speakerinside LCDmodule
Resolderofspeaker's
wire
CheckC430,C431 ResolderofC430,C431
(AudioSignal passes
throughthiscapacitor)
CheckR403,R404
ResolderofC430,C431
(AudioSignal passes
throughthiscapacitor)
END
Yes
Yes
Yes
No
No
No
Canyousee anyaudiosignal
fromC430,C431?
Yes
NoThisisthe defectof
E-Gold+.ChangeE-Gold+
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SGH-A500 FlowChartofTroubleshooting and Circuit Diagrams
6-5
7. BacklihgtPART
LCDMainBoard
1.VBAT2.VBAT3.LED_IN9.VBAT10.VBAT11.LED_IN
Checkthesoldered statusofthe
LEDPAD
BackLight(Menu4.4.1)"Shortor
Long"mode inthemenu?
Backlight turnon.
Checkthepin11 of16 (CN302 )
High(2.6V)== ?
Backlight turnon.
Checkthepin3of16 (LCDCON)
High(2.6V)== ?
Checkthesoldered statusoftheLEDPAD
SoldertheLEDagainorReplacetheLED
Selectbacklight"ShortorLong"mode
ChecktheLCDConnector
ReplacetheFPCB
ChangeLCDModule
BackLightdosenotwork
Yes
No
Yes
Yes
No
Yes
No
No
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6-6
SGH-A500 FlowChartofTroubleshooting and Circuit Diagrams
8. AlertTone
Abnormal Alert tone
Alert toneOnbypushingthekey
*#0289#
CheckthePIN13,14 of
CN302
Istherealertwave?
Checktheconnection
fromCN302 totheNAND
ofSpeaker
Alertisok?
END
Checkthecircuitrelated to
U303
ChangeLCDmodule
ChangeSpeaker
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