Philips BJ2.4U Service Manual
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Contents
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Service Modes, Error Codes, and Fault Finding EN 21BJ2.4U/BJ2.5U PA 5.Figure 5-7 “Off” to “Semi Stand-by” flowchart (part 2)NoRelease viper resetFeed cold boot script(1)Release viper resetFeed initializing boot script (3)disable alive mechanismDetect EJTAG debug probe(pulling pin of the probe interface toground by inserting EJTAG probe)EJTAG probeconnected ?NoYesBootscript readyin 1250 ms?YesNoViper SW initializationsucceededwithin 20s?NoRelease viper resetFeed warm boot script(2)Cold boot?YesNoRPC start (comm. protocol)Set I²C slave addressof Standby μP to (A0h)Set I²C slave addressof Standby μP to (64h)Release PNX2015 reset 100ms afterViper reset is releasedRelease PNX2015 reset 100msafter Viper reset is released+3.3V errorNoYesActivate supply detection algorithms for+1V2 and +3V3Enable the supply for+2.5V and +3.3V (ENABLE-3V3)+1.2V errordetect-1V2received within250ms?NoYesSPSPdetect-3V3received within250 ms?Enable the supply fault detectioninterruptSupply fault errorNoYesSPSUPPLY-FAULT I/O lineis High?Switch Viper in resetStart polling the detect-3V3 every 40msNo separate enable anddetect is present for the +2V5supply in the Baby Jaguar.Flash to RAM imagetransfer succeededwithin 30s?NoYesCode = 53Code = 5F_15400_096b.eps260505From part ATo part C To part C To part C To part CFrom part Bautonomous actionaction holder: St-byaction holder: MIPS |
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