Motorola service manual Specifications W370/W375 W370\W375, Transmitter Functions Specification

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Specifications (W370/W375)

W370\W375

	Transmitter Functions	Specification


	RF Power Output	EGSM/GSM850: 32.5dBm (TYP),
		DCS/PCS: 30dBm (TYP)

	Output Impedance	50 ohm (TYP)

	Spurious Emissions	-36 dBm from 0.1 to 1GHz,
		-30 dBm from 1 to 4GHz

	Receiver Functions	Specification


	Receiver Sensitivity	EGSM/GSM850: -107dBm,
		DCS/PCS: -106dBm

	RX Bit Error Rate (100K bits) type II	<2%

	Channel Hop Time	500 microseconds

	Time to Camp	Approximately 6~10 Second

	Speech Coding Functions	Specification


	Speech Coding Type	Regular pulse excitation/linear predictive
		coding with long term prediction (PRE
		LPC with LTP)

	Bit Rate	13.0 Kbps

	Frame Duration	20 ms

	Block Length	260 bits

	Classes	Class 1 bits =182 bits;
		Class 2 bits = 78 bits

	Bit Rate with FEC Encoding	22.8 Kbps

8	Aug.15, 2006

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Contents W370/W375 Table of Contents Introduction Product IdentificationProduct Names Product ChangesComputer Program Copyrights AudienceScope Introduction W370\W375Warranty Service Policy ConventionsOut of Box Failure Policy Product SupportOutside U.S.A Parts ReplacementAccessories and Aftermarket Division AAD General Functions Specification Specifications W370/W375Specifications W370/W375 Specifications W370/W375 W370\W375 Transmitter Functions SpecificationReceiver Functions Specification Speech Coding Functions SpecificationProduct Overview FeaturesProduct Overview Other Features Caller Line IdentificationSimplified Text Entry SIM Toolkit ClassControls, Indicators, and Input/Output I/O Connectors General FunctionsMenu Navigation General FunctionsLiquid Crystal Display LCD General Functions W370\W375User Interface Menu Structure Battery Function Tools and Test EquipmentOperation Tools and Test Equipment W370\W375Disassembly DisassemblyDigital Multimeter Used to measure battery voltage Motorola Part Number Description ApplicationRemoving and Replacing the Battery Disassembly W370\W375Removing and Replacing the Bottom Housing Removing and Replacing the SIM CardRemoving the screws Latch Separating the back housing Removing the vibrator Removing and Replacing the Main Board and Keypad Removing the speaker chipRemoving the side rubber Remove the main board Prying the microphone Removing the keypad Removing and Replacing the Top Housing Remove four rubber coverDisconnecting the two halves Removing the rubber Removing and Replacing the Top Clamshell Exerting pressure on the clamshellRemoving the conduct Separating the bracket Aug.15 Removing the sub-board Removing the receiver Aug.15 Remark Disassembly W370\W375 Subscriber Identity Module SIM and Identification Label IdentificationInternational Mobile Station Equipment Identity Imei Subscriber Identity Module SIM and Identification LabelSerial Number Check Digit Type Allocation Code, formerly known as Type Approval CodeTroubleshooting W370/W375 Troubleshooting ChartTroubleshooting Level 1 and 2 Troubleshooting ChartProgramming Software Upgrade and Flexing Part Number Charts Part Number ChartsPart Number Charts W370\W375 W370 Exploded View Diagram Aug.15Part Number Description Specification Exploded View Parts ListW375 Exploded View Parts List Part Number Charts W370\W375 W370 Exploded View Parts List Accessories List of AccessoriesPart Number Charts W370\W375 Aug.15 Index-1 IndexIndex Index-2 Index-3 Index-4 Reg. U.S. Pat. & Tm. Off Motorola, Inc

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