Matsushita CF-08TX1A1M manual Diagnosis & Repair, Flow Chart

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5 Diagnosis & Repair

5.1. Basic Procedures

The basic procedures for diagnosis, disassembly, and test of defective parts of a set to be repaired are summarized below. For details, refer to relevant pages in the Service Manual.

Flow Chart

OCCURRENCE OF

TROUBLE

Insert the AC plug.

Self Test Program

Self Test Program start up.

NORMAL FINISH	ERROR
	OCCURRENCE

DEFECTIVE PARTS

SORTING

FAULT

OK

TROUBLESHOOTING

Press the Power button,

while pressing the USER button and the Cursor control button at the same time.

REPAIR WORK

INSPECTION

DISASSEMBLY PROCEDURE Replace defective parts.

Self Test Program

After repair, make sure that the repaired set operates properly.

TEST OK

END OF REPAIR WORK

5-1

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Contents CF-08TX1A1M Page Page Do Not Put into a Micro- wave PrecautionsAvoid Heat Avoid Extreme Heat, Cold and Direct Sun- lightStop Using Contents Main Specifications SpecificationsBluetooth Wireless LANIntroduction CopyrightDisclaimer Trademarks Microphone jack Battery pack Headphone jackStylus holder Security lock Speaker Expansion bus connector Description of partsAttaching the Tether Using the TetherTurn on the wireless display Starting up/Shutting DownConnect to the server When deleting settings Make the settings only for the SupervisorWhen terminating the connection When settings have been changedShutting Down power off the wireless display Diagnosis & Repair Flow ChartTroubleshooting Self Test Program CPU Type checkSdram march test Test register check for the source microcomputer ID check for 2700GChip ID check for LAN9118 How to Restart Touchscreen TroubleshootingStarting Up DisplaySound Wireless CommunicationConnecting Peripherals Shut DownBlock Diagram DC/DC VCC5P0V LCD FET Dock CON PCB Wiring Connection DiagramRemoving the Display Unit Disassembly/ReassemblyRemoving the Battery Pack PreparationRemoving the Main PCB Removing IO Power PCBRemoving the Wlan PCB Removing the Speaker Removing the Audio Con PCBRemoving the USB PCB Removing the SW LED PCB Removing the Bluetooth Wlan R PCBRemoving the Wlan L PCB Removing the Dock Con PCBRemoving the LCD Unit and the Inverter Setting the LCD Unit and the Inverter Reassembly InstructionsPreparations for backlight Safety Working LCD PWB Sheet Preparations for Touchscreen Assembly of the LCD Block Setting the SW LED PCBAssembly of the SW LED PCB Setting the Dock Con PCB Assembly of the Dock CON PCB Setting the Wlan L PCB Setting the Bluetooth Wlan R PCBSetting the USB PCB Setting the SpeakerSetting the Audio Con PCB Setting the IO Power PCB Setting the Wlan PCBSetting the Main PCB USB PCB FFC Setting the Display Unit Assembly of the Display unit Cable Hold Sheet Setting the Battery Pack Battery Pack Slide the knob to the outside and lock firmly 10-1 Exploded View10-2 10-3 11-1 Replacement Parts List11-2 11-3 REF. no and Area 11-411-5 11-6 11-7 11-8 11-9 11-10 11-11 11-12 11-13 11-14 Resistor Array 11-1511-16 11-17 11-18 11-19 ERJ3GEYJ562V 11-2011-21 11-22 11-23 CF-08 Printed Circuit Board Main PCB SW LED PCB RJ45LAN CF-08 Schematic Diagram IO Power 1 I/F ConnectorFor Cradle DC-IN IO Power 2 DCIN/ BatteryLTC4008EGN#TRPBF IO Power 3 ChargerSENSE2 IO Power 4 VA3,VA5ECFlash IO Power 5 ECIO Power 6 Overprotect Wlan 1 SYCHIPWLAN/ BT Board Wlan 2 SYCHIPWLAN/ BT Board