Sony Ericsson NWZ-A829, NWZ-A828, NWZ-A826K DD1INB1, DD1INB2, DD1VFBK2, DD1GNDA, VGP1, Com, VGP3

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NWZ-A826/A826K/A828/A828K/A829

	Pin No.	Pin Name	I/O	Description
	AF16,	DD1INB1, DD1INB2	I	Power supply input terminal (+2.9 - 4.2V)
	AF17	DD1INB1, DD1INB2	I	Power supply input terminal (+2.9 - 4.2V)
	AF17
	AF18	DD1VFBK2	I	Power supply voltage feedback terminal
	AF19	DD1GNDA	-	Ground terminal
	AF20	VGP1	O	Power supply output terminal (+2.85V)
	AF21	COM	-	Not used
	AF22	NC	-	Not used
	AF23	VGP3	O	Power supply output terminal (+2.85V)
	AF24 to	NC	-	Not used
	AF26	NC	-	Not used
	AF26

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Contents NWZ-A826/A826K/A828/A828K/A829 889-048-01NWZ-A826/A826K/A828/A828K/A829 Flexible Circuit Board Repairing DisassemblyDiagrams Section Servicing NotesAEP, UK NWZ-A826KNWZ-A828K Section GeneralSection Disassembly Disassembly FlowCover REAR, Rear Assy Battery Main BoardLCD Assy Section Test Mode Power supply voltage checkOperation of the Test Mode 4-1. Power Charge current check Battery voltage detection checkStandby current check AudioOutput check Frequency characteristic 1 checkFrequency characteristic 2 check 2. S/N checkMaximum output check CH separation L-ch checkCH separation R-ch check Normalizer checkLCD display check Liquid crystal display is checked Sound pressure regulation level checkVideo OtherKey check Destination settingSound pressure regulation setting Frequency check that presses keyBASS-Gain/Fc setting Clear stereo setting With cableClear stereo setting No cable TREBLE-Gain/Fc settingBluetooth address setting Bluetooth address is set Bluetooth connection checkShutdown Section Diagrams Block Diagram PANEL, Power Supply Section Side a For Printed Wiring BoardsFor Schematic Diagrams Side BPrinted Wiring Board Main Board Side a Uses unleaded solder Semiconductor LocationPrinted Wiring Board Main Board Side B Uses unleaded solder 123 Main Board 1/7 IC701 123 Main Board 3/7 See page 32 for IC Block Diagrams BoardMain Board Main Board 6/7 Main Board 7/7 SW Board Side a SW Board Side B Uses unleaded solder123 SW Board 1/2 SW Board 2/2 IC Block Diagrams Main Board IC301 XC6401FF58DRMAX8671CETL+TG069 SW BoardIC Pin Function Description GND NandwezIOB VccvbusNANDDA2 NANDRBZ0Nandale VDDL1NANDRBZ1 LcdenableUsbsuspd BtxrstLCDB0 ResetzNANDCEZ0 LCDG4, LCDG5 Wakeup Vlogin Sdrcasz PsmlodetSdrclk TustoSDRA0 TM2AD6 AD4 XholdkeyAD5 Keywake AD7 SPI0CSZ2DD1GNDA DD1INB1, DD1INB2DD1VFBK2 VGP1Section Exploded Views Cover Rear SectionRear Assy Section 106 1-756-702-11 BATTERY, Lithium ION Storage Main Board SectionFront Section Section Electrical Parts List MainLED SMLA13BDTT86ST Bluetooth CONNECTOR, FFC/FPC ZIF 11PMULTIPLE, Connector Ceramic Chip 5PFTransistor InductorCOIL,COMMONMODECHOKE SMD1210 Transistor EMX18SWITCH, Slide Hold Terminal Short Chip SwitchSWITCH, Tactil Reset TERMINAL, ContactBattery Assy US, CND, AEP, UK, FR, EE CONNECTOR, FFC/FPC ZIF 39PINBATTERY, Lithium ION Storage VaristorNWZ-A828K AEP AccessoriesMANUAL, Instruction English NWZ-A826K AEP/NWZ-A828K AEPMemo Revision History Ver Date Description of Revision