Sony Ericsson NWZ-A826 Key check, Frequency check that presses key, Format, Destination setting

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NWZ-A826/A826K/A828/A828K/A829

4-4-2. Key check

The operation of the key is confirmed.

Checking method:

1.Enter the test mode.

2.Press the [v]/[V] key to select the “OTHER”, and press the [B] key to enter the minor item.

3.Press the [v]/[V] key to select the “KEY”.

4.Press the [u] key, all keys are displayed.

liquid crystal display

OTHER KEY

UP

VOL+

REW PLAY

FF VOL–

DOWN

OPTION

HOLD

BACK

BT

 

START

5.The character corresponding to the key is selected every time the key is pressed. “START” changes into “OK” if all keys are pressed.

6.Slide the [HOLD] switch from ON to OFF, return to minor item selection screen.

4-4-3. Frequency check that presses key

The frequency to which the key is pressed, insert/pull out frequen- cy of cradle and insert/pull out frequency of the headphone are displayed.

Note: Not used for the servicing.

4-4-4. Format

The user’s area is formatted, and ICV for the video and ICV for audio are initialized.

Note: Not used for the servicing.

Format the set from “Settings” “Common settings” “For- mat” when it home menu in usually operates when the set should format it.

4-4-5. Destination setting

The destination setting, language information, and sound pressure regulation information are written in the NAND flash memory.

Note: Not used for the servicing.

4-4-6. Sound pressure regulation setting

ON/OFF of sound pressure regulation is confirmed.

Note: Not used for the servicing.

4-4-7. Firmware version check The firmware version is displayed.

Checking method:

1.Enter the test mode.

2.Press the [v]/[V] key to select the “OTHER” and press the [B] key to enter the minor item.

3.Press the [v]/[V] key to select the “FWVER”.

4.Press the [u] key, the firmware version is displayed.

liquid crystal display

OTHER FWVER

X.XX.XX

MODEL NAME

NWZ-####

SERIAL NO

@@@@@@@

BT MAC ADR

*******

X.XX.XX

: Firmware version

####: Model name

@@@@@@@ : Serial No.

*******

: Bluetooth MAC address

5. Press the [BACK] key, return to minor item selection screen.

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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 NotesNWZ-A828K AEP, UKNWZ-A826K Section GeneralCover REAR, Rear Assy Section DisassemblyDisassembly Flow Battery Main BoardLCD Assy Operation of the Test Mode 4-1. Power Section Test ModePower supply voltage check Charge current check Battery voltage detection checkStandby current check Audio Output check Frequency characteristic 1 check Frequency 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 settingShutdown Bluetooth address setting Bluetooth address is setBluetooth connection check 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, LCDG5Wakeup VloginSdrcasz 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