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PORTABLE CELLULAR
ELECTRONICS
TELEPHONE
SCH-A399
SERVICE Manual
PORTABLE CELLULAR TELEPHONE CONTENTS
1. Exploded Views and Parts List
2. PCB Diagrams
3. Electrical Parts List
4. Block Diagrams
5. Trouble shooting
6. Circuit Diagram
ELECTRONICS
Samsung Electronics Co.,Ltd.
Printed in Korea
1/2002 Rev 1.0
GH68-02629A
1. Exploded Views and Parts List
1-1 Main
1-2 Main Parts List
1-3 Travel Adapter
1-4 Travel Adapter Parts List
1-5 Battery Charger
1-6 Test Jig
1-6-1 Test Jig
1-7 normal EAR Microphone
1-8 Data Kit
2. PCB Diagrams
2-1 Main Top
2-2 Main Bottom
3. Electrical Parts List
3-1 Main Parts List Top
3-2 Main Parts List Bottom
4. Block Diagrams
5. Trouble shooting
5-1 LOGIC Section
5-1-1 No Power
5-1-2 Abnormal initial operation (Normal +2.8V Voltage source)
5-1-3 Abnormal Backlight Operation
5-1-4 Abnormal Key Data Input
5-1-5 Abnormal Key tone
5-2 Receiver Section
5-3 Transmitter Section
6. Circuit Diagrams
6-1 Rx Circuit Diagram
6-2 Tx Circuit Diagram
6-3 Misc Circuit Diagram
6-2 Logic Circuit Diagram
1. Exploded Views and Parts List
1-1 Main (SCH-A399)
1 2
12
13
14
14-1
3
4 15 14-2
5
6 17
7 16 18
8
19 20
9 21
22
10
11
Exploded Views and Parts List 1-1
1-2 Main Parts List
Location No. Description SEC CODE Remark
1 WATCH WINDOW LCD GH72-03591A
2 FOLDER UPPER GH75-01440A
3 CON TO CON GH59-00289A
4 LCD GH07-00128A
5 SPEAKER 3001-001255
6 MOTOR ASS`Y GH31-00022A
7 WINDOW RUBBER GH73-00750A
8 FOLDER LOWER GH75-01441A
9 WINDOW LCD GH72-03592A
10 SCREW 6001001429
11 SCREW CAP GH74-00611B
12 FRONT COVER GH75-01442A
13 KEY PAD GH75-01614A
14 MAIN PBA GH82-00091A
14-1 DOME SHEET GH59-00315A
14-2 MIC GH59-00745A
15 IF CONNECTOR COVER GH73-00745A
16 VOLUME KEY GH75-01297A
17 REAR COVER GH75-01443A
18 ANTENNA GH42-00148A
19 SCREW 6001-001402
20 MOBILE CAP GH73-00744A
21 BATTERY GH43-00457A
22 BATTERY GH43-00458A
1-2 Exploded Views and Parts List
1-3 Travel Adapter
A
1-4 Travel Adapter Parts List
TYPE SEC CODE REMARK
A GH44-00171A CHINA
1-5 Battery Charger
Battery Charger GH39-00274A
Exploded Views and Parts List 1-3
1-6 Test Jig
TEST JIG GH80-10502C
TEST JIG CABLE GH39-00122A
RF JIG CABLE GH39-00077A
1-4 Exploded Views and Parts List
1-6-1 Test Jig
DC
POWER
SUPPLY
8924 or 8285
WIRELESS COMMVNCATIONS
TEST SET
RF JIG CABLE
TE
ST
JIG
232 CABLE
TEST JIG CABLE
1-7 Normal EAR Microphone
Wearable EAR Microphone GH96-00922B
1-8 Data Kit
DATA KIT
Exploded Views and Parts List 1-5
2-1
2-1 Main Top
LED200
2. PCB Diagrams
R267 C201 C234 R400
R255
VOL_UP
R215 C200 R252 Q202
U254
U253
U400
C403
C100
R218 C202 C253
C156 R162
C158 C157
C401 C161
U199
UP_DOWN
C226 R220
L414 C203 C228 R459 R460 C229 R311
VOL_DOWN
C252
C249
C248
C243 C235
C242 R246
C218 R247
R130
V200 C347 R332
C240
R249
R250
C239
ZD215
R333 C348 U300
C241 C245
R248
TH301
R310
UP
G3
C300
LEFT RIGHT
TH300
R204 R277
R306 R312
ZD204 ZD205
C213 C208 C305
OK
R301
R307 R304 R308
MENU
Q300
C214
R309
ZD212
MEM DOWN
ZD202 ZD203
R203 R276
R280 C216
PWR/END
SEND
CLR
1
3
2
C215 C212
ZD209 ZD208
RESOUT
R209 C211
4
6
TRST1
5
TDO1
TDI1
TMS1
7
9
TCK1
8
LWR_N1
R207 C210
ZD200 ZD201
R275 C209
*
0
SHAP
R268 R269 R254 R223
C448
C227
R224
L202
R227
R229
R222
R216
C159
R256
R253 Q201 R132
U408
Q200
R200
U428
L201
R228
C217
C204
R226
R225
R212
C154
R164
R163
R134
Q101
C111
PCB Diagrams
2-2
C224
C400
C236 R245
C237 R244
C230 R243
C231 R242
R241
C232
C233
R240
CN400
U402
L400
L402
2-2 Main Bottom
C420 C147
CN210
C223 R214
C146 CN255
L412
D400
F301
C409 R404 C222 R219 C453
F400
C324 L303
V201
C244
R283
C246
R282
C247
R281
U401
L420
C416
L409 L411
C421
C411
L408 C412L406
F401
R409 C417
C413 L421
C459 C312 G1
R412
C431
C424 L405 C465
R407
C423
C422
U403
C313
R300
C457
C408 C414
R401
C425 Q400 C406
R131 R456 C344 L413 C402 L403
C418 R406 Q401 R402
C301 C303 C304
R410
L300 Q402 C407 L404 C405
C419
R440
U414
C318
R405
C462
U304
C464 L410
U411
R342
L407
C455 C454
R334
F402
U426
L310 C340
C343 C345
C346
F300
C350 L315
C349
C320 C322
U301
C360
C342L309 C339 C353 C351 R331 C352 C365
C410
C329 R313
R317 R316
C364
C361
R325
C331
R324
C308 R339 C451
D402
R341
R303
C327
C302 C328
C415
C404
L312 D401 L415
R430C444
R433C452
C333 R320 L304 C362 R429 C443
C332
R322
R321 C325 U305 C368 C434
C341 C309
U306
D302 C370 C433
R327
U302 C371
R337 C367 R335 C354 C369
R315
C337
C338
L308
R326
R338
C358
L313
C314
R319 C441
C359 R340
C442 C432 C430
R426 C428 C429
C326 D301 C336 C330 C135 R136 C132
C125
U429
C315 C310 C306 C319 R323 C136 OSC300 C438 R118
L307
C334
C355 C133
C356 R151
R152
R150
C311
L416 L417 L418
L306 R424
C134
C124
R112
R336 C366 C357 R329 C363
C372 L314 C307 C321 C335 C131
C114 C112 C113 R153 R146 R107 C116 C117 C160 R143 R133
C145 Q405
U202
U140
Q301
C140
R156
C151
R233 R251R231 R274
R234
U203 R148
C120
C143
R145
U131
C119 R102
R122 R119
R111 R135
R110 C121
C142
R140
R165 R155
C138 C149
R141C141
R144C144
U170 Q406
R129
R414
R417
C148
C137
C115 R161
R167
C102
R114
Q408
TMODE
C153
R154
C150 GROUND
R418
C155
R421
R113
C101 Q100 R109
C123
R121 C439
U100 R423
C461 WDOG_EN
U406
U412 CN201
R457
R425
OSC100
C460 C118 RD_N
C104 C103 RAM_CS1_N
Q409
ROM_CS1_N
R422
C122 C105
C126 C106
C251 C152
C107
C108
R101 C435
R458 C437
U110 U204 R284 Q410
R419
C436
C139 R126 C127 C129 R125
C250
C225 R124
C449
MIC+ C109
C445
C219
C447
U413
MIC C110 Q203
U409
C446
G4 C450
R232 C207
G2
R108
R211 ZD214
U255
ZD210
ZD213
C205
C221
C220 Q407
CN404 CN403
CN401
TRST TDO TDI TMS TCK LWRVBATT GNDHP RX TX
PCB Diagrams
3. Electrical Parts List
Level SEC CODE Design LOC DESCRIPTIONS
0 SCH-A399S/CUH
1 6001-001478 PH,+,M1.4,L3,NYLOK(BLK),SWRCH18A,FP
1 GH41-00228A SCH-A399,POLYIMIDE,1L,-,-,10.95X13.25
1 GH42-00148A SCH-A399 ANTENNA,SCH-A399,824~894MHZ,-,50OHM
1 GH43-00457A 1UF383450P(550MAH),SCH-A399,LI-ION,550MAH
1 GH43-00458A USO63450G3,SCH-A399,LI-ION,900MAH,-,4.2V,-,3.7V
1 GH44-00171A TA014G,SGH-N288,AC/DC,-,-,-,-,85-264VAC,50/60Hz
1 GH44-00274A DCH073BLC,SCH-A399,DC/DC,-,-,-,STD,5.0V,-,-,4.2V
1 GH59-00286A SCH-A399,OBG-18L44-C33,-,MIC,FPC,-,-,-,7.75X5.8MM
1 GH59-00313A SCH-A399,SCH-A399 METAL DOME ,-,METAL DOME
1 GH59-00315A SCH-A399,SCH-A399 DOME SHEET,SCH-A399,SCH-A399 DOME SHEET
1 GH68-02588A SCH-A399,POLYESTER,T0.05,51.3,33.3,-,SIL,-,-,-
1 GH73-00744A SCH-A303,CR RUBBER,5.28X3.57,L/GRY,80,-
1 GH73-00803A SCH-X350,RUBBER,-,D/GRY,50,-
1 GH74-01161A SCH-X120,VINYL,T0.1,-,-
1 GH74-01432A SCH-X200,VINYL,51X81.8XT0.08,TRP,-
1 GH75-00223J SGH-2300,-,L/GRY
1 GH75-01297A SPH-A330,-,ASS`Y,-,SIL,-,-,-
2 GH72-02578A SCH-A303,-,ABS,CR PLT,-,-,-
2 GH73-00748A SCH-A303,CR RUBBER,17.4X2.56,BLK,-,-
1 GH75-01614A SCH-A399,-,-,-,SIL,-,-,-
2 GH72-02631A SCH-A303,-,ABS,TRP,-,-,-
2 GH72-02633A SCH-A303,-,EF TYPE,SIL,-,-,-
2 GH72-03072A SCH-A303,ABS,SIL,-,-,-,-,-,-
2 GH72-03073A SCH-A303,ABS,TRP,-,-,-,-,-,-
2 GH72-03074A SCH-A303,ABS,TRP,-,-,-,-,-,-
1 GH92-01236A SCH-A399,SAMSUNG,CHNA,MAIN PBA,-,-,-,-,-
2 0405-001035 D301 1SV279,15V,3nA,USC,TP
2 0405-001035 D302 1SV279,15V,3nA,USC,TP
2 0405-001035 D401 1SV279,15V,3nA,USC,TP
2 0405-001035 D402 1SV279,15V,3nA,USC,TP
2 0406-001084 ZD210 SMF05,6/-/-V,200W,-
2 0406-001084 ZD212 SMF05,6/-/-V,200W,-
2 0406-001084 ZD213 SMF05,6/-/-V,200W,-
2 0406-001084 ZD214 SMF05,6/-/-V,200W,-
2 0406-001084 ZD215 SMF05,6/-/-V,200W,-
2 0407-001007 U406 UMN1,80V,25mA,CA4-2,UM5,TR
2 0409-001016 D400 BAR63-02W,50V,100mA,SCD-80,TP
2 0501-000162 Q101 2SA1576,PNP,200MW,SOT-323,TP,180-390
2 0501-000218 U400 2SC4081,NPN,200mW,UMT,TP,180-3
2 0501-000225 Q201 2SC4617,NPN,200mW,EM3,TP,120-5
2 0501-000225 Q300 2SC4617,NPN,200mW,EM3,TP,120-5
2 0501-002110 Q401 AT32033,NPN,200mW,SOT-23,TP,70
2 0501-002202 Q200 MMBT2222AWT1,NPN,150mW,SOT-323
2 0501-002346 Q203 2SB1427,PNP,500mW,SOT-89,TP,390-820
2 0504-000167 Q406 RN1102,NPN,100MW,10K/10K,SSM,TP
2 0504-000167 Q408 RN1102,NPN,100MW,10K/10K,SSM,TP
3-1 Electrical Parts List
Level SEC CODE Design LOC DESCRIPTIONS
2 0504-000167 Q410 RN1102,NPN,100MW,10K/10K,SSM,TP
2 0504-000168 Q409 RN1104,NPN,100MW,47K/47K,SSM,TP
2 0504-000172 Q202 RN2104,PNP,100MW,47K/47K,SSM,TP
2 0504-001016 Q405 DTA114EE,PNP,150MW,10K/10K,SSM,TP
2 0505-001119 Q400 2SK2685,P,6V,20mA,-,100mW,CMPA
2 0505-001165 Q407 SI3443DV,P,-20V,+-3.5mA,65mohm
2 0506-000143 U203 UMD3N,NPN/PNP,2,150mW,SC-88,TP,30-
2 0506-001004 Q100 UMC5N,NPN/PNP,2,50V,-,-100mA,3
2 0506-001004 Q301 UMC5N,NPN/PNP,2,50V,-,-100mA,3
2 0506-001004 U401 UMC5N,NPN/PNP,2,50V,-,-100mA,3
2 0601-001226 LED200 CHIP,RED,1.2x0.8mm,660nm
2 0601-001565 ZD200 CHIP,GRN,1.1X0.8MM,520NM
2 0601-001565 ZD201 CHIP,GRN,1.1X0.8MM,520NM
2 0601-001565 ZD202 CHIP,GRN,1.1X0.8MM,520NM
2 0601-001565 ZD203 CHIP,GRN,1.1X0.8MM,520NM
2 0601-001565 ZD204 CHIP,GRN,1.1X0.8MM,520NM
2 0601-001565 ZD205 CHIP,GRN,1.1X0.8MM,520NM
2 0601-001565 ZD208 CHIP,GRN,1.1X0.8MM,520NM
2 0601-001565 ZD209 CHIP,GRN,1.1X0.8MM,520NM
2 0801-000794 U202 7S08,AND GATE,SOT-25,5P,63MIL,
2 0801-002345 U140 7S04,INVERTER,SOT-353,5P,49MIL,SINGLE,TP,PLASTIC
2 1001-001155 U253 NC7SB3157P6X,CMOS,SC70,6P,49MIL,-,5.5V,-40to+85C
2 1001-001155 U254 NC7SB3157P6X,CMOS,SC70,6P,49MIL,-,5.5V,-40to+85C
2 1009-001006 U199 A3210ELH,SC-74A,3P,-,TP,-,-,5V,1MA,-40TO+85C
2 1103-001184 U131 24C256,32Kx8Bit,dBGA,8P,92MIL,-,2.7V,-,PLASTIC
2 1109-001191 U110 42553,4MX8/512KX8BIT,FBGA,73P,-,85/90NS,3V,10%
2 1201-001248 U426 0916,SOT-143,4P,-,-,2.7V,-,6Vd
2 1201-001384 U403 MD57-0001,SOT-26,6P,114MIL,SIN
2 1201-001491 U301 912,LCC,7P,226MIL,SINGLE,28dB,PLASTIC,4.2V,-,-30to+85C
2 1201-001764 U300 SOT23-6,TP,6P,63MIL,SINGLE,-,PLASTIC,5.5V,-,-40TO+85C
2 1202-001036 U170 75W56,SSOP,8P,90MIL,DUAL,+-7V,CMOS,PLASTIC,7V,200MW
2 1203-001285 U411 5205,SOT-23,5P,150MIL,PLASTIC,
2 1203-001285 U414 5205,SOT-23,5P,150MIL,PLASTIC,
2 1203-001511 U409 809,SOT-23,3P,-,PLASTIC,0.3/6.
2 1203-001908 U408 76928,SOT-23,5P,-,PLASTIC,2.716/2.884V,-,-40to125C,750mA,-,TP
2 1203-001908 U413 76928,SOT-23,5P,-,PLASTIC,2.716/2.884V,-,-40to125C,750mA,-,TP
2 1203-002127 U204 1734,SOT-23,6P,150MIL,PLASTIC,4.7/5.3V,-,0to+70C,1A,-,TP
2 1203-002208 U412 TPS76925,SOT-23,5P,65MIL,PLASTIC,1.2V/5.5V,-,-40TO+125C,100MA
2 1204-001581 U429 IFR3000-48BCCF-TR,BCC,48P,-,PLASTIC,3.5V,-,-30+85CC,TR,RX
2 1204-001682 U302 RFT3100,BCC,32P,196MIL,PLASTIC,3V,-,-30to+85C,TP,-
2 1205-002032 U100 MSM3100C,FBGA,208P,-,PLASTIC,3.7V,-,-40TO+85C,TP,-
2 1209-001282 U306 S1M8821,QFN,24P,-,PLASTIC,5.5V,-,-40to+85C,TR
2 1404-001152 TH301 10KOHM,5%,3380K,1MW/C,TP
2 1404-001196 TH300 2.2Kohm,+-5%,3950K,1mW/C,TP
2 1405-001082 V201 5.6V,20A,1x0.5x0.6mm,TP
2 1405-001093 C240 14V,20A,1x0.5x0.6mm,TP
2 1405-001093 C241 14V,20A,1x0.5x0.6mm,TP
2 1405-001093 V200 14V,20A,1x0.5x0.6mm,TP
2 2007-000138 R211 100ohm,5%,1/16W,DA,TP,1005
Electrical Parts List 3-2
Level SEC CODE Design LOC DESCRIPTIONS
2 2007-000138 R216 100ohm,5%,1/16W,DA,TP,1005
2 2007-000138 R222 100ohm,5%,1/16W,DA,TP,1005
2 2007-000138 R223 100ohm,5%,1/16W,DA,TP,1005
2 2007-000138 R226 100ohm,5%,1/16W,DA,TP,1005
2 2007-000138 R429 100ohm,5%,1/16W,DA,TP,1005
2 2007-000139 R407 220ohm,5%,1/16W,DA,TP,1005
2 2007-000140 R118 1Kohm,5%,1/16W,DA,TP,1005
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