Sony Ericsson NWZ-A829 Usbsuspd, NANDRBZ1, Btxrst, Btpwrctl, Ncpwron, NANDRBZ2, BTLEDCTL2, AB0RDZ

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NWZ-A826/A826K/A828/A828K/A829

	Pin No.	Pin Name	I/O	Description
	G23 to	AB0_D15 to AB0_D13	I/O	Two-way data bus with the USB controller
	G25	AB0_D15 to AB0_D13	I/O	Two-way data bus with the USB controller
	G25
	G26	NC	-	Not used
	H1	USBSUSPD	-	Not used
	H2	NC	-	Not used
		SDR_DATA25,
	H3 to H5	SDR_DATA27,	I/O	Two-way data bus with the SD-RAM
		SDR_DATA31
	H8	NAND_RBZ1	O	Read/busy signal output to the NAND ﬂash memory (NWZ-A828/A828K/A829 only)
	H9	BT_XRST	O	Reset signal output to the bluetooth controller
	H10	BT_PWRCTL	O	Power control signal output terminal for the bluetooth section
	H11, H12	NC	-	Not used
	H13	NC_PWRON	O	Power control signal output terminal Not used
	H14, H15	NC	-	Not used
	H16	AB0_WRZ	O	Write strobe signal output to the USB controller
	H17	NC	-	Not used
	H18, H19	AB0_A1, AB0_A2	O	Address signal output to the USB controller
	H22 to	AB0_D8, AB0_D9,	I/O	Two-way data bus with the USB controller
	H25	AB0_D7, AB0_D6	I/O	Two-way data bus with the USB controller
	H25	AB0_D7, AB0_D6
	H26	NC	-	Not used
	J1 to J3	IO_A	-	Not used
	J4, J5	SDR_DATA29,	I/O	Two-way data bus with the SD-RAM
	J4, J5	SDR_DATA30	I/O	Two-way data bus with the SD-RAM
		SDR_DATA30
	J8	NAND_RBZ2	O	Read/busy signal output to the NAND ﬂash memory (NWZ-A829 only)
	J9	BT_LEDCTL2	O	LED drive signal output terminal for the bluetooth indicator
	J10	SPI_CS_SEL	O	Chip select signal selection signal output terminal Not used
	J11 to J17	GND	-	Ground terminal
	J18	NC	-	Not used
	J19	AB0_RDZ	O	Read strobe signal output to the USB controller
	J22 to J24	AB0_D10 to AB0_D12	I/O	Two-way data bus with the USB controller
	J25	CHGGND1	-	Ground terminal
	J26	NC	-	Not used
	K1 to K3	VDD_L1	I	Power supply input terminal (+1.2V)
	K4, K5	SDR_DATA28,	I/O	Two-way data bus with the SD-RAM
	K4, K5	SDR_DATA26	I/O	Two-way data bus with the SD-RAM
		SDR_DATA26
	K8	NAND_RBZ3	O	Read/busy signal output to the NAND ﬂash memory (NWZ-A828/A828K/A829 only)
	K9	NAND_DA6	I/O	Two-way data bus with the NAND ﬂash memory
	K10 to K18	GND	-	Ground terminal
	K19	NC	-	Not used
	K22	LCD_HSYNC	O	Horizontal sync signal output to the liquid crystal display
	K23	LCD_ENABLE	O	Enable signal output to the liquid crystal display
	K24	LCD_VSYNC	O	Vertical sync signal output to the liquid crystal display
	K25	CHGGND2	-	Ground terminal
	K26	NC	-	Not used
		SDR_DATA23 to
	L1 to L5	SDR_DATA20,	I/O	Two-way data bus with the SD-RAM
		SDR_DATA24
	L8	SDR_DATA19	I/O	Two-way data bus with the SD-RAM
	L9	NAND_DA4	I/O	Two-way data bus with the NAND ﬂash memory
	L10	GND	-	Ground terminal
	L11	NC	-	Not used
	L17, L18	GND	-	Ground terminal
	L19	LCD_B1	O	RGB video (blue) signal output to the liquid crystal display
	L22 to L25	LCD_B2 to LCD_B5	O	RGB video (blue) signal output to the liquid crystal display
	L26	NC	-	Not used
	M1 to M5	SDR_DATA18 to	I/O	Two-way data bus with the SD-RAM
	M1 to M5	SDR_DATA14	I/O	Two-way data bus with the SD-RAM
		SDR_DATA14
	M8	SDR_DATA13	I/O	Two-way data bus with the SD-RAM

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Contents 889-048-01 NWZ-A826/A826K/A828/A828K/A829NWZ-A826/A826K/A828/A828K/A829 Diagrams DisassemblyFlexible Circuit Board Repairing Section Servicing NotesNWZ-A826K AEP, UKNWZ-A828K General SectionDisassembly Flow Section DisassemblyCover REAR, Rear Assy Main Board BatteryLCD Assy Power supply voltage check Section Test ModeOperation of the Test Mode 4-1. Power Standby current check Battery voltage detection checkCharge current check AudioFrequency characteristic 2 check Frequency characteristic 1 checkOutput check 2. S/N checkCH separation R-ch check CH separation L-ch checkMaximum output check Normalizer checkVideo Sound pressure regulation level checkLCD display check Liquid crystal display is checked OtherSound pressure regulation setting Destination settingKey check Frequency check that presses keyClear stereo setting No cable Clear stereo setting With cableBASS-Gain/Fc setting TREBLE-Gain/Fc settingBluetooth connection check Bluetooth address setting Bluetooth address is setShutdown Section Diagrams Block Diagram PANEL, Power Supply Section For Schematic Diagrams For Printed Wiring BoardsSide a Side BSemiconductor Location Printed Wiring Board Main Board Side a Uses unleaded solderPrinted Wiring Board Main Board Side B Uses unleaded solder 123 Main Board 1/7 IC701 123 Main Board 3/7 Board See page 32 for IC Block DiagramsMain Board Main Board 6/7 Main Board 7/7 Uses unleaded solder SW Board Side a SW Board Side B123 SW Board 1/2 SW Board 2/2 IC301 XC6401FF58DR IC Block Diagrams Main BoardSW Board MAX8671CETL+TG069IC Pin Function Description IOB NandwezGND VccvbusNandale NANDRBZ0NANDDA2 VDDL1Usbsuspd LcdenableNANDRBZ1 BtxrstNANDCEZ0 ResetzLCDB0 LCDG4, LCDG5Sdrcasz VloginWakeup PsmlodetSDRA0 TustoSdrclk TM2AD5 Keywake AD4 XholdkeyAD6 AD7 SPI0CSZ2DD1VFBK2 DD1INB1, DD1INB2DD1GNDA VGP1Cover Rear Section Section Exploded ViewsRear Assy Section Main Board Section 106 1-756-702-11 BATTERY, Lithium ION StorageFront Section Main Section Electrical Parts ListMULTIPLE, Connector CONNECTOR, FFC/FPC ZIF 11PLED SMLA13BDTT86ST Bluetooth Ceramic Chip 5PFCOIL,COMMONMODECHOKE SMD1210 InductorTransistor Transistor EMX18SWITCH, Tactil Reset Short Chip SwitchSWITCH, Slide Hold Terminal TERMINAL, ContactBATTERY, Lithium ION Storage CONNECTOR, FFC/FPC ZIF 39PINBattery Assy US, CND, AEP, UK, FR, EE VaristorMANUAL, Instruction English AccessoriesNWZ-A828K AEP NWZ-A826K AEP/NWZ-A828K AEPMemo Ver Date Description of Revision Revision History