Panasonic JS-960 Series Service Manual

6-16. Trouble ShootingNo power, No boot, No starting, No displayThis is not including cable connection checks. Please check cable connections as well.LED Green?LED Red?Boot normal?POST displays?Fan turns?AC Cord is connected?StartPower Supply FailureReplace Power SupplyConnect AC CordOriginal LED PCBFailure Main PCB FailureReplace Main PCBOriginal Fan FailureSwap FanSwap InverterSwap HDDFan turns?Connect ExternalMonitor to DVI portMain PCB FailureReplace Main PCBPOST displays?Boot normal?Main PCB FailureReplace Main PCBOriginal Inverter FailureMain PCB FailureReplace Main PCBRemount Original FanLCD FailureReplace LCDRemount Original InverterReformat and reinstallOS and application tooriginal HDDSwap HDDReinstall OS andapplicationExternal monitor displays POST?Remove disks and other media,displays ?YesYesYesYesYesYesYesYesYesYesYesNoNoNoNoNoNoNoNoNoNoNoBoot normal?Boot normal?HDDs data wasbrokenYesYesNoNoSwap LED PCBOriginal HDD FailureSwap LCD relayorMain to LCDPCBBoot normal? NoOriginal LCD relayPCBor Main to LCDPCBFailureYes