Samsung SCH-210 service manual.pdf - Free

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Product Support ToolsTable 5-1. Editing keys.KeyArrow KeysEnterEscDeleteBack SpaceHomeDescriptionMove the field cursor to the next editable field in the direction of the arrow. If in editmode, the left and right arrows move the cursor left and right within that field.Enters edit mode. Some fields have a limited number of valid values, and pressing key repeatedly cycles through the options. After editing, and press the key again. Then exits edit mode, accepting a new value.Aborts edit mode.Deletes the selected charater in Edit mode.Backs towards the beginning of the line and deletes.Moves the edit cursor to the beginning of the string.5-6 <strong>Samsung</strong> Electronics - Contents may change without notice.
6. Circuit Description6-1 Logic Section6-1-1 Power SupplyWith the battery installed on the phone and bypressing the PWR key, the VBATT and ON_SWsignals will be connected. This will turn on Q102(2SC4081BR) and will drive DC-DC converter(U123) to output 5.0V. This in turn will besupplied to pin 6 of regulators (U121 and U122),thus releasing them from the shut-down state tooutput regulated 3.3V.The VBATT applied to ON_SW will turn on Q103(DTC144EE) resulting in the signalON_SW_SENSE to change state from HIGH toLOW. This will allow MSM to send out PS_HOLD(logical HIGH) to turn on Q102 even after thePWR key is released.The voltage (+3.3V) from U121 is used in thedigital parts of MSM and BBA. The voltage(+3.3AV) from U122 is used in the analog part ofBBA. The voltage from U124 (output of 5V) is usedfor the audio circuitry.CPUINTEL 80186 CMOS type 16-bit microprocessor isused for the main processing. The CPU controls allthe circuitry. For the CPU clock, 27MHz resonatoris used.FLASH ROMOne 8 MBIT FROM is used to store the terminal'sprogram. Using the down-loading program, theprogram can be changed even after the terminal isfully assembled.SRAMOne 2 MBIT SRAM is used to store the internalflag information, call processing data, and timerdata.6-1-2 Logic PartThe Logic part consists of internal CPU of MSM,RAM, ROM and EEPROM. The MSM receivesTCXO and CHIPX8 clock signals from the BBAand controls the phone during the CDMA and theFM mode. The major components are as follows:CPU : INTEL 80186 coreFROM : U126 (MBM29LV800T) - 8MBITSRAMFLASH ROM: U127 (KM68V2000I) - 2MBITSTATIC RAMEEPROM : U113 (AT24C128) - 128KBIT SERIALEEPROMEEPROMOne 128 KBIT EEPROM is used to store ESN,NAM, power level, volume level, and telephonenumber.KEYPADFor key recognition, key matrix is setup usingSCAN0-6 of STORE signals and KEY0-3 of inputports of MSM. Eight LEDs and backlight circuitryare included in the keypad for easy operation inthe dark.LCD MODULELCD module contains a controller which willdisplay the information onto the LCD by 8-bit datafrom the MSM. It also consists a DC-DC converterto supply -3.5V for fine view angle and LCDreflector to improve the display efficiency.<strong>Samsung</strong> Electronics - Contents may change without notice. 6-1
Page 1 and 2: CDMA PORTA B L EC E L L U L A RT E
Page 3: 1. General IntroductionThe SCH-210
Page 6 and 7: SpecificationPreamphasis: 6 dB/OCT
Page 8 and 9: SpecificationMSC Transmitter Freque
Page 10 and 11: Specification2-6 Samsung Electronic
Page 12 and 13: InstallationItem Model Name Service
Page 14 and 15: Installation3-3-3 Hands-Free Box1.
Page 16 and 17: Installation3-6 Samsung Electronics
Page 18 and 19: NAM Programming4-2 Setting Up NAM1L
Page 20 and 21: NAM ProgrammingLCD Display Key in F
Page 22 and 23: NAM Programming4-6 Samsung Electron
Page 24 and 25: Product Support Tools5-2 Product Su
Page 26 and 27: Product Support ToolsSOFTWARE DOWNL
Page 30 and 31: Circuit Description6-1-3 Baseband P
Page 32 and 33: Circuit Description6-1-4 Audio Part
Page 34 and 35: Circuit DescriptionDUPLEXERDuplexer
Page 36 and 37: Circuit DescriptionCURRENT DETECTIO
Page 38 and 39: Circuit Description6-6-2 List of Eq
Page 40 and 41: Circuit DescriptionCommand No. Sign
Page 42 and 43: Circuit Description6-8 Rapid Travel
Page 44 and 45: Circuit DescriptionENVIRONMENTAL SP
Page 46 and 47: Troubleshooting7-1-2 Abnormal Initi
Page 48 and 49: Troubleshooting7-1-4 Abnormal Key D
Page 50 and 51: Troubleshooting7-1-6 Abnormal Alert
Page 52 and 53: Troubleshooting7-2-2 CDMA Mode7-8 S
Page 54 and 55: Troubleshooting7-10 Samsung Electro
Page 57: Exploded View and its Parts List8-2
Page 61 and 62: Exploded View and its Parts List8-6
Page 66 and 67: Exploded View and its Parts List8-1
Page 78 and 79:
Electrical Parts ListNO DESCRIPTION
Page 80 and 81:
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Page 84 and 85:
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Page 88 and 89:
Page 90 and 91:
Electrical Parts List10-2 Rapid Cha
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Page 100:
Electrical Parts List10-24 Samsung
Page 103:
11-3 Hands-free Kit Block Diagram
Page 106 and 107:
11-5 CLA (Cigarette Lighter Adaptor
Page 108 and 109:
11-7 Receiver Circuit Diagram
Page 110 and 111:
11-9 Desk-Top Rapid Charger Circuit
Page 112 and 113:
11-10-1 Power Circuit Diagram
Page 114 and 115:
11-10-3 COMM & CONT Circuit Diagram
Page 116 and 117:
11-11 Cradle Circuit Diagram
Page 118 and 119:
11-13 Rapid Trvel Charger Circuit D
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