Manuale d’uso / di manutenzione del prodotto SGH i-900 del fabbricante Samsung
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GSM TELEPHONE SGH-i900 1. Safety Precautions 2. Specification 3. Product Function 4. Array course control 5. Exploded View and Parts list 6. MAIN Electrical Parts List 7. Disassembly and Assembly Instructions 8. Block Diagrams 9. PCB Diagrams 10. Chart of Troubleshooting 11.
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. Samsung Electronics Co.,Ltd. 2008. 06. Rev.1.0 ⓒ Country Web Site North America service.
SAMSUNG Proprietary-Contents may change without notice 1. Safety Precaution s 1-2 This Document can not be used without Samsung's authorization 1-1.
SAMSUNG Proprietary-Contents may change without notice Safety Precautions 1-2 This Document can not be used without Samsung's authorization 1-2. ESD(Electrostatically Sensitive Devices) Precaution Several semiconductor may be damaged easilly by static electricity.
2. Specification 2- 1 2-1. GSM General Specification GSM850 Phase 1 EGSM 900 Phase 2 DCS1800 Phase 1 PCS1900 WCDMA2100 Freq. Band[MHz] Uplink/Downlink 824~849 869~894 880~915 925~960 1710~1785 1805~18.
Specification 2-2 2-2. GSM Tx Power Class TX Power control level GSM850 53 3 ± 2 dBm 63 1 ± 2 dBm 72 9 ± 2 dBm 82 7 ± 2 dBm 92 5 ± 2 dBm 10 23±2 dBm 11 21±2 dBm 12 19±2 dBm 13 17±2 dBm 14 15.
SAMSUNG Proprietary-Contents may change without notice 3. Product Function 3- 1 This Document can not be used without Samsung's authorization Main Function ― Homescreen ― PIM - Contacts , Cal.
SAMSUNG Proprietary-Contents may change without notice 4. Array course control 4- 1 This Document can not be used without Samsung's authorization 4-1. Software Adjustments There is 2 set to download the binary image into your device. [ First set] 1.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-2 This Document can not be used without Samsung's authorization [ Second set] 1. USB DATA Link Cable : GH39-00922A 2. Battery : GH43-03110A 4-2. Software Download 1-1. Equipment for Software Download 1-2.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-3 This Document can not be used without Samsung's authorization 2-1. Driver Installation ( PDA) ▶ Make sure th at you install drivers. ▶ If you installed the latest ActiveSync program, you don ’t n eed to install the pda d river.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-4 This Document can not be used without Samsung's authorization ble.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-5 This Document can not be used without Samsung's authorization ) If ‘ START ’ button is not activated, terminate th e applica tion and re connect USB d at a link cable and retry.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-6 This Document can not be used without Samsung's authorization [ Changing USB PATH] [ Downloading PHONE ].
SAMSUNG Proprietary-Contents may change without notice Array course control 4-7 This Document can not be used without Samsung's authorization [ Job Done ] ) The Display of your De vice.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-8 This Document can not be used without Samsung's authorization ) Trouble Shooting 1. “ PDA Device not found ” message ) Make sure that your device is connected a host computer by USB DATA Li nk cable.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-9 This Document can not be used without Samsung's authorization ) After you install “ phone USB driver ( Samsung CDMA Modem) ” at first time, you m ay see “ Port open failed …” message or application han g while downloading a phone image.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-10 This Document can not be used without Samsung's authorization - Reference - How to deal with the an error in the computer USB port of the computer. Symptom: Device is not identified after connecting it.
SAMSUNG Proprietary-Contents may change without notice 5. Exploded View and Parts List 5- 1 This Document can not be used without Samsung's authorization 5-1.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 5-2 This Document can not be used without Samsung's authorization Design LOC Discription SEC CODE QAN05 ASSY RU.
SAMSUNG Proprietary-Contents may change without notice 6. MAIN Electrical Parts List 6- 1 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 0403-001547.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-2 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 1001-001410 U30.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-3 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2007-000148 R11.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-4 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2007-008055 R42.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-5 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2007-008798 R40.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-6 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2007-009801 R43.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-7 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2203-005682 C42.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-8 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2203-005736 C14.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-9 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2203-006194 C22.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-10 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2203-006423 C2.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-11 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2203-006423 U2.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-12 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2203-006562 C6.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-13 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2203-006838 C5.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-14 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2203-006839 C6.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-15 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2703-001750 L1.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-16 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription 2809-001324 OS.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-17 This Document can not be used without Samsung's authorization SEC CODE Design LOC Discription GH70-03349A SC.
SAMSUNG Proprietary-Contents may change without notice 7. Disassembly and Assembly Instructions 7- 1 This Document can not be used without Samsung's authorization 7-1. Disassembly 1 4 3 2 1) UNSCREW 4 REAR Points. Separate the REAR cover -1 - Separa te the rear cas e using a disassembly tool following indicated direction.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-2 This Document can not be used without Samsung's authorization 5 8 7 6 Separate Main FPCB CONNECTOR. - Separate Main FPCB Connect or from the PBA Connector wit h great care.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-3 This Document can not be used without Samsung's authorization 9 12 11 10 Separate OJ(Optical Joystic) KEY FPCB. - Separate OJ KEY with great care not t o tear O J KEY FPCB.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-4 This Document can not be used without Samsung's authorization 13 16 15 14 Separate FRONT. - Separate FRONT fr om FRONT Ass`y following indicated direction. Separate Key Pad.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-5 This Document can not be used without Samsung's authorization 17 19 18 Separate LCD from TSP. - Separate LCD from TSP with gre at care not to damage TSP. Separate TSP Module.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-6 This Document can not be used without Samsung's authorization 7-2. SPK Disassembling 1 4 3 2 Disassemble 5M CAM CONNECTOR. - Separate 5M CAM Connector First. Then Pull 5M CAM out of Bracket.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-7 This Document can not be used without Samsung's authorization 7 Disassemble Window Deco.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-8 This Document can not be used without Samsung's authorization 7-3. Assembling 1 4 3 2 Attach LCD to the Main Shield Can. - Insert LCD connecto r into the hole and then attach LCD to the main shield can.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-9 This Document can not be used without Samsung's authorization 7 10 9 8 Assemble Key Pad with OJ Key. - Optical Joystic should fit in the hole of Key Pad. Assemble FRONT with FRONT Ass`y.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-10 This Document can not be used without Samsung's authorization 13 16 15 14 Assemble TSP FPCB CONNECTOR. - Assemble TSP FPCB Connector with PBA Connector . Assemble OJ Key FPCB CONNECTOR.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-11 This Document can not be used without Samsung's authorization 19 22 21 20 Put the Fuction Key FPCB into FRONT Ass`y Guide. Assemble Window Function key -1 . - The Rounded part is headed to the TOP.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-12 This Document can not be used without Samsung's authorization 7-4. SPK Assembling 1 4 3 2 Assemble Window Deco. Assemble CIF CAM. Make Main FPCB fit in SPK Bracket.
SAMSUNG Proprietary-Contents may change without notice Exploded View and Parts List 7-13 This Document can not be used without Samsung's authorization 7 9 8 Assemble 5M CAM CONNECTOR. - Assemble 5M CAM Connector with FPCB Connector f ollowing indicated d irection.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used wit hout Samsung's autho rization 8. Block Diagrams 8- 1 9 1 5 7 7 Y K S R T R 5 8 2 6 G 5 .
SAMSUNG Proprietary-Contents may change without notice 9. PCB Diagrams 9- 1 This Document can not be used without Samsung's authorization 0 0 1 T N A 1 0 1 T N A 2 0 1 T N A 3 0 1 T N A 0 0 3 T A.
SAMSUNG Proprietary-Contents may change without notice PCB Diagrams 9-2 This Document can not be used without Samsung's authorization B T C 3 0 0 C200 1 0 2 C C202 3 0 2 C 4 0 2 C 5 0 2 C C206 C2.
SAMSUNG Proprietary-Contents may change without notice 10. Flow Chart of TroubleShooting 10- 1 This Document can not be used without Samsung's authorization 10-1. Power On z PDA Part No ' Power On' Voltage in U605 V1=3.0 V2=1.8 V3=1.4 V4=1.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-2 This Document can not be used without Samsung's authorization VCODEC_2.0V 0 7 6 C 4 7 6 C 3 7 6 C 2 7 6 C VCC_1.4V_APPS VBATT VCC_1.4V_SRAM 5 7 6 C VCC_3.0V VCC_1.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-3 This Document can not be used without Samsung's authorization 0 0 3 C 1 0 3 C 2 0 3 C C30 3 C30 4 C305 C.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-4 This Document can not be used without Samsung's authorization z PHONE Part ` 2 P i ni nD 3 0 0 Low Phone.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-5 This Document can not be used without Samsung's authorization R200 U201 1 A B 2 3 GND 5 NC 6 VCC 4 Y VCC_2.8V PON_RST_PMIC_N FONE_RST PON_RST_PDA_N_O 5 3 2 C 3 3 2 C R219 VCC_3.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-6 This Document can not be used without Samsung's authorization L300 R306 5 1 3 C VMSME_1.8V VRFRX2_2.7V R303 9 1 3 C C308 V 6 . 2 _ P M S M V V 5 8 . 2 _ O X C T V 3 1 2 3 0 3 C D300 TP_CBL_PWR_N C309 4 1 3 C 5 0 3 C C317 C 2 1 3 C 3 1 3 C R307 V 3 .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-7 This Document can not be used without Samsung's authorization BTC300 C20 0 1 0 2 C C202 3 0 2 C 4 0 2 C .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-8 This Document can not be used without Samsung's authorization 10-2.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-9 This Document can not be used without Samsung's authorization C456 C455 8 5 10 COM1 COM2 6 GND 3 NC 9 7 NC 2 NO1 4 NO2 VCC U407 CB1 1 CB2 VAUDIO_3.3V_A R435 SPKL SPK_SW RCV_P SPKR CODEC_OUT_R SPK_SW RCV_N CODEC_OUT_L 9 2 4 C 6 ZD402 1 2 3 4 5 VAUDIO_3.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-10 This Document can not be used without Samsung's authorization Place between D12 and E12 Set Near AA22 C N 1 1 2 R C N 0 1 2 R R217 VTCXO_2.85V VMSMA_2.6V VMSMA_2.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-11 This Document can not be used without Samsung's authorization C20 0 1 0 2 C C202 3 0 2 C 4 0 2 C 5 0 2 .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-12 This Document can not be used without Samsung's authorization 10-3.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-13 This Document can not be used without Samsung's authorization 14 VOM 12 VOP F E R V 19 S S V 8 13 VSS S.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-14 This Document can not be used without Samsung's authorization 4 3 2 C 5 3 2 C C23 6 C24 0 2 4 2 C 5 4 2.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-15 This Document can not be used without Samsung's authorization 10-4.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-16 This Document can not be used without Samsung's authorization 9 0 4 C 6 5 H C 2 N V ZD400 1 1 H C 2 H C.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-17 This Document can not be used without Samsung's authorization 14 VOM 12 VOP F E R V 19 S S V 8 13 VSS S.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-18 This Document can not be used without Samsung's authorization C20 0 1 0 2 C C202 3 0 2 C 4 0 2 C C20 8 .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-19 This Document can not be used without Samsung's authorization 10-5.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-20 This Document can not be used without Samsung's authorization 9 0 4 C 6 5 H C 2 N V ZD400 1 1 H C 2 H C.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-21 This Document can not be used without Samsung's authorization 10-6. T-Flash Card Working Insert T-Fla sh NG C547 D N G 9 NC 4 5 NC VDD 7 8 VOUT1 6 VOUT2 U508 CE1 1 3 CE2 2 GND C530 VLCD_3.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-22 This Document can not be used without Samsung's authorization BOTHHOLE6 0 0 2 0 1 C C105 C107 C108 1 C .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-23 This Document can not be used without Samsung's authorization 10-7. Bluetooth Work ing Ant103 and L119 O.K? No Yes Replace or Resolder Ant103 and L119 Change U101 Yes No Pin 6 in U101=3.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-24 This Document can not be used without Samsung's authorization 7 9 1 C L124 R138 4 9 1 C VCC_3.0V 8 9 1 C R124 5 W _ D 8 . 1 D D V 0 5 C N 1 5 C N 6 GPIO0 PIO2 7 8 PIO3 9 PIO0 2 4 W _ O I D D V 3 4 W _ 3 .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-25 This Document can not be used without Samsung's authorization 10-8.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-26 This Document can not be used without Samsung's authorization 1 1 2 2 3 3 4 4 R106 ANT100 C110 L105 C11.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-27 This Document can not be used without Samsung's authorization C20 0 1 0 2 C C202 3 0 2 C 4 0 2 C 5 0 2 .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-28 This Document can not be used without Samsung's authorization 10-9.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-29 This Document can not be used without Samsung's authorization 0 0 3 T A B 0 0 1 C 1 0 1 C 2 0 1 C C105 .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-30 This Document can not be used without Samsung's authorization 10-10.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-31 This Document can not be used without Samsung's authorization 0 0 1 T N A 1 0 1 T N A 0 0 3 T A B BOTHH.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-32 This Document can not be used without Samsung's authorization 10-9.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troublesho oting 10-33 This Document can not be used without Samsung's authorization 22pF C147 25V C164 22pF 25V F p 2 2 1 6 1 C V 5 2 F p 2 2 0 6 1 C V 5 2 100PF 25V C153 5.6 R112 VRFRX2_2.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of T roubleshooting 10-34 This Document can not be used without Samsung's authorization C20 0 1 0 2 C C202 3 0 2 C 4 0 2 C 5 0 2 .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubl eshooting 10-35 This Document can not be used without Samsung's authorization 10-12.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting 10-36 This Document can not be used without Samsung's authorization 1 1 2 2 3 3 4 4 R106 ANT100 C110 L105 C112.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubl eshooting 10-37 This Document can not be used without Samsung's authorization 10-13.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting 10-38 This Document can not be used without Samsung's authorization C147 C164 1 6 1 C 0 6 1 C C153 R112 VRFRX2_2.7V C140 C125 C141 VRFRX1_2.1V VRFRX1_2.1V C1113 C123 C126 C129 C146 C133 C139 C132 C148 C100 C1114 C106 C105 C173 C116 R101 C177 C127 VRFRX1_2.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubl eshooting 10-39 This Document can not be used without Samsung's authorization 10-14.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting 10-40 This Document can not be used without Samsung's authorization 1 1 2 2 3 3 4 4 R106 ANT100 C110 L105 C112.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubl eshooting 10-41 This Document can not be used without Samsung's authorization 10-15.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting 10-42 This Document can not be used without Samsung's authorization 1 1 2 2 3 3 4 4 R106 ANT100 C110 L105 C112.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubl eshooting 10-43 This Document can not be used without Samsung's authorization C147 C164 1 6 1 C 0 6 1 C C153 R112 VRFRX2_2.7V C140 C125 C141 VRFRX1_2.1V VRFRX1_2.1V C1113 C123 C126 C129 C146 C133 C139 C132 C148 C100 C1114 C106 C105 C173 C116 R101 C177 C127 VRFRX1_2.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting 10-44 This Document can not be used without Samsung's authorization 10-16.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubl eshooting 10-45 This Document can not be used without Samsung's authorization C180 C179 C184 C151 C168 C170 V_DC C169 C.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting 10-46 This Document can not be used without Samsung's authorization 10-17.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubl eshooting 10-47 This Document can not be used without Samsung's authorization C180 C179 C184 C151 C168 C170 V_DC C169 C.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting 10-48 This Document can not be used without Samsung's authorization C147 C164 1 6 1 C 0 6 1 C C153 R112 VRFRX2_2.7V C140 C125 C141 VRFRX1_2.1V VRFRX1_2.1V C1113 C123 C126 C129 C146 C133 C139 C132 C148 C100 C1114 C106 C105 C173 C116 R101 C177 C127 VRFRX1_2.
SAMSUNG Proprietary-Contents may change without notice 11. Reference data 11-1 This Document can not be used without Samsung's authorization 11-1.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Samsung SGH i-900 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Samsung SGH i-900 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Samsung SGH i-900 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Samsung SGH i-900 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Samsung SGH i-900, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Samsung SGH i-900.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Samsung SGH i-900. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Samsung SGH i-900 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.