DPO7254  Demux Fault in Log - Page 1
Forum section: electronics / repair

author: charlyd
author_rank: Frequent Contributor
timestamp: January 08, 2023, 10:30:58 am
content: Hi i got a DPO7254 on my bench, after starting up the unit, it fails with error 315 and 316. My debug logs are pointing to a demux communication problem.my error looks like this:Code:***************************************File opened: Sat Jan 07 13:52:30 2023***************************************EnablePowerupDiags = 1, puMode=UserDiagPowerUpDiagsEnabled = 1Model: DPO7254Serial number: B010315, HFD201 ID = 0 (0x000000)Scope.exe Version: 5.3.5 Build 22; Sat Jan 07 13:52:41 2023: Executing Powerup diags ... Pu=24 T=27CTest "111" - Processor-->Memory-->DRAMWalk1 startedTest execution time 9.7778e-006 secTest "112" - Processor-->Memory-->DRAMCell startedTest execution time 0.010838 secTest "113" - Processor-->Memory-->DRAMMarch startedTest execution time 0.0015251 secTest "114" - Processor-->Memory-->DRAMCal startedTest execution time 2.0394e-005 secTest "211" - Registers-->PCI-->MIA startedTest execution time 0.0056395 secTest "221" - Registers-->Acquisition-->ACL startedTest execution time 0.00019779 secTest "222" - Registers-->Acquisition-->PLL startedTest execution time 0.020034 secTest "223" - Registers-->Acquisition-->Preamp startedTest execution time 0.0067425 secTest "224" - Registers-->Acquisition-->TrkHld startedTest execution time 0.0040994 secTest "225" - Registers-->Acquisition-->ADC startedTest execution time 0.023456 secTest "226" - Registers-->Acquisition-->DAC startedTest execution time 0.005549 secTest "227" - Registers-->Acquisition-->Demux startedTest execution time 0.0040382 secTest "231" - Registers-->Trigger-->SBTL startedTest execution time 8.7721e-005 secTest "232" - Registers-->Trigger-->SGTL startedTest execution time 0.0067855 secTest "233" - Registers-->Trigger-->TrigComp startedTest execution time 9.3587e-005 secTest "234" - Registers-->Trigger-->CommTrig startedTest execution time 0.034591 secTest "235" - Registers-->Trigger-->FTL started*** TEST N/A FOR THIS HW ***Test execution time 1.9556e-006 secTest "241" - Registers-->Misc-->FanCtrl started*** TEST N/A FOR THIS HW ***Test execution time 1.6762e-006 secTest "242" - Registers-->Misc-->Tek04 started*** TEST N/A FOR THIS HW ***Test execution time 1.9556e-006 secTest "243" - Registers-->Misc-->DigCtrl started*** TEST N/A FOR THIS HW ***Test execution time 1.6762e-006 secTest "244" - Registers-->Misc-->IntfBoard started*** TEST N/A FOR THIS HW ***Test execution time 1.9556e-006 secTest "245" - Registers-->Misc-->FpBoard started*** TEST N/A FOR THIS HW ***Test execution time 1.6762e-006 secTest "246" - Registers-->Misc-->AfeBoard started*** TEST N/A FOR THIS HW ***Test execution time 1.6762e-006 secTest "252" - Registers-->DigitalTrig-->Tek05Dev started*** TEST N/A FOR THIS HW ***Test execution time 1.6762e-006 secTest "253" - Registers-->DigitalTrig-->Tek05HKRam started*** TEST N/A FOR THIS HW ***Test execution time 1.9556e-006 secTest "254" - Registers-->DigitalTrig-->Tek05AcqRam started*** TEST N/A FOR THIS HW ***Test execution time 1.6762e-006 secTest "311" - Acquisition-->Demux-->RunAB startedTest execution time 0.28398 secTest "312" - Acquisition-->Demux-->AcqDone startedTest execution time 0.0016488 secTest "313" - Acquisition-->Demux-->SysRdy startedTest execution time 0.0015136 secTest "314" - Acquisition-->Demux-->Interrupt startedTest execution time 0.0014753 secTest "315" - Acquisition-->Demux-->IdcLoSpeed startedError from DEMUX3 to DEMUX4 expect: 000037fe rcv: 00003f56Error from DEMUX3 to DEMUX4 expect: 000037fd rcv: 00003f55Error from DEMUX3 to DEMUX4 expect: 000037fb rcv: 00003f53Error from DEMUX3 to DEMUX4 expect: 000037f7 rcv: 00003f57Error from DEMUX3 to DEMUX4 expect: 000037ef rcv: 00003f47Error from DEMUX3 to DEMUX4 expect: 000037df rcv: 00003f57Error from DEMUX3 to DEMUX4 expect: 000037bf rcv: 00003f17Error from DEMUX3 to DEMUX4 expect: 0000377f rcv: 00003f57Error from DEMUX3 to DEMUX4 expect: 000036ff rcv: 00003e57Error from DEMUX3 to DEMUX4 expect: 000035ff rcv: 00003d57Error from DEMUX3 to DEMUX4 expect: 000033ff rcv: 00003b57Error from DEMUX3 to DEMUX4 expect: 00003fff rcv: 00003f57Error from DEMUX3 to DEMUX4 expect: 000027ff rcv: 00002f57Error from DEMUX3 to DEMUX4 expect: 000017ff rcv: 00001f57Error from DEMUX3 to DEMUX4 expect: 000037ff rcv: 00003f57Test diagIdcLoSpeedRunTest TransmitRight - WalkZeros FAILEDError from DEMUX3 to DEMUX4 expect: 00000808 rcv: 00000800Error from DEMUX3 to DEMUX4 expect: 00000820 rcv: 00000800Error from DEMUX3 to DEMUX4 expect: 00000880 rcv: 00000800Error from DEMUX3 to DEMUX4 expect: 00000000 rcv: 00000800Test diagIdcLoSpeedRunTest TransmitRight - WalkOnes FAILEDError from DEMUX4 to DEMUX3 expect: 000037fe rcv: 00003f56Error from DEMUX4 to DEMUX3 expect: 000037fd rcv: 00003f55Error from DEMUX4 to DEMUX3 expect: 000037fb rcv: 00003f53Error from DEMUX4 to DEMUX3 expect: 000037f7 rcv: 00003f57Error from DEMUX4 to DEMUX3 expect: 000037ef rcv: 00003f47Error from DEMUX4 to DEMUX3 expect: 000037df rcv: 00003f57Error from DEMUX4 to DEMUX3 expect: 000037bf rcv: 00003f17Error from DEMUX4 to DEMUX3 expect: 0000377f rcv: 00003f57Error from DEMUX4 to DEMUX3 expect: 000036ff rcv: 00003e57Error from DEMUX4 to DEMUX3 expect: 000035ff rcv: 00003d57Error from DEMUX4 to DEMUX3 expect: 000033ff rcv: 00003b57Error from DEMUX4 to DEMUX3 expect: 00003fff rcv: 00003f57Error from DEMUX4 to DEMUX3 expect: 000027ff rcv: 00002f57Error from DEMUX4 to DEMUX3 expect: 000017ff rcv: 00001f57Error from DEMUX4 to DEMUX3 expect: 000037ff rcv: 00003f57Test diagIdcLoSpeedRunTest TransmitLeft - WalkZeros FAILEDError from DEMUX4 to DEMUX3 expect: 00000808 rcv: 00000800Error from DEMUX4 to DEMUX3 expect: 00000820 rcv: 00000800Error from DEMUX4 to DEMUX3 expect: 00000880 rcv: 00000800Error from DEMUX4 to DEMUX3 expect: 00000000 rcv: 00000800Test diagIdcLoSpeedRunTest TransmitLeft - WalkOnes FAILEDIDC Low Speed test FAILEDdiagIdcLoSpeed error summary of failing demux pairs:--------------------------------------------------DEMUX3 --> DEMUX4DEMUX4 --> DEMUX3*** TEST FAILED ***Test execution time 0.020886 secdiagMgr:diagLogFailure: Sat Jan 07 13:52:41 2023 P Pu=24 T=27 "diagIdcLoSpeed FAILED"Test "316" - Acquisition-->Demux-->IdcHiSpeed startedError from DEMUX3 to DEMUX4 expect: ffff7ffe rcv: ffff7f7eError from DEMUX3 to DEMUX4 expect: fffefffd rcv: ff7eff7dError from DEMUX3 to DEMUX4 expect: fff7ffef rcv: ff77ff6fError from DEMUX3 to DEMUX4 expect: ffdfffbf rcv: ff5fff3fError from DEMUX3 to DEMUX4 expect: 00400080 rcv: 00400000Error from DEMUX3 to DEMUX4 expect: fefffdff rcv: fe7ffd7fError from DEMUX3 to DEMUX4 expect: f7ffefff rcv: 77ffefffError from DEMUX3 to DEMUX4 expect: dfffbfff rcv: 5fffbfffError from DEMUX3 to DEMUX4 expect: bfff7fff rcv: bfff7f7fTest FAILEDError from DEMUX4 to DEMUX3 expect: ffff7ffe rcv: ffff7f7eError from DEMUX4 to DEMUX3 expect: fffefffd rcv: 7f7e7f7dError from DEMUX4 to DEMUX3 expect: fffdfffb rcv: 7f7d7f7bError from DEMUX4 to DEMUX3 expect: fffbfff7 rcv: 7f7b7f77Error from DEMUX4 to DEMUX3 expect: fff7ffef rcv: 7f777f6fError from DEMUX4 to DEMUX3 expect: ffefffdf rcv: 7f6f7f5fError from DEMUX4 to DEMUX3 expect: ffdfffbf rcv: 7f5f7f3fError from DEMUX4 to DEMUX3 expect: 00400080 rcv: 00400000Error from DEMUX4 to DEMUX3 expect: ff7ffeff rcv: ff7f7e7fError from DEMUX4 to DEMUX3 expect: fefffdff rcv: 7e7f7d7fError from DEMUX4 to DEMUX3 expect: fdfffbff rcv: 7d7f7b7fError from DEMUX4 to DEMUX3 expect: fbfff7ff rcv: 7b7f777fError from DEMUX4 to DEMUX3 expect: f7ffefff rcv: 777f6f7fError from DEMUX4 to DEMUX3 expect: efffdfff rcv: 6f7f5f7fError from DEMUX4 to DEMUX3 expect: dfffbfff rcv: 5f7f3f7fError from DEMUX4 to DEMUX3 expect: bfff7fff rcv: bfff7f7fTest FAILEDdiagIdcHiSpeed error summary of failing demux pairs:--------------------------------------------------DEMUX3 --> DEMUX4DEMUX4 --> DEMUX3Retrying tstDiagIdcHiSpeed test ... T=27CError from DEMUX3 to DEMUX4 expect: fffefffd rcv: ff7eff7dError from DEMUX3 to DEMUX4 expect: fff7ffef rcv: ff77ffefError from DEMUX3 to DEMUX4 expect: ffdfffbf rcv: ff5fff3fError from DEMUX3 to DEMUX4 expect: 00400080 rcv: 00400000Error from DEMUX3 to DEMUX4 expect: fdfffbff rcv: fd7ffbffError from DEMUX3 to DEMUX4 expect: f7ffefff rcv: f77fef7fTest FAILEDError from DEMUX4 to DEMUX3 expect: ffff7ffe rcv: ffff7f7eError from DEMUX4 to DEMUX3 expect: fffefffd rcv: 7f7e7f7dError from DEMUX4 to DEMUX3 expect: fffdfffb rcv: 7f7d7f7bError from DEMUX4 to DEMUX3 expect: fffbfff7 rcv: 7f7b7f77Error from DEMUX4 to DEMUX3 expect: fff7ffef rcv: 7f777f6fError from DEMUX4 to DEMUX3 expect: ffefffdf rcv: 7f6f7f5fError from DEMUX4 to DEMUX3 expect: ffdfffbf rcv: 7f5f7f3fError from DEMUX4 to DEMUX3 expect: 00400080 rcv: 00400000Error from DEMUX4 to DEMUX3 expect: ff7ffeff rcv: ff7f7e7fError from DEMUX4 to DEMUX3 expect: fefffdff rcv: 7e7f7d7fError from DEMUX4 to DEMUX3 expect: fdfffbff rcv: 7d7f7b7fError from DEMUX4 to DEMUX3 expect: fbfff7ff rcv: 7b7f777fError from DEMUX4 to DEMUX3 expect: f7ffefff rcv: 777f6f7fError from DEMUX4 to DEMUX3 expect: efffdfff rcv: 6f7f5f7fError from DEMUX4 to DEMUX3 expect: dfffbfff rcv: 5f7f3f7fError from DEMUX4 to DEMUX3 expect: bfff7fff rcv: bfff7f7fTest FAILEDdiagIdcHiSpeed error summary of failing demux pairs:--------------------------------------------------DEMUX3 --> DEMUX4DEMUX4 --> DEMUX3*** TEST FAILED ***Test execution time 0.56149 secdiagMgr:diagLogFailure: Sat Jan 07 13:52:41 2023 P Pu=24 T=27 "diagIdcHiSpeed FAILED"Test "317" - Acquisition-->Demux-->IdcAcqDataXfr startedTest skipped because Demux IDC tests failed.*** TEST NOT RUN YET ***Test execution time 0.0001841 secTest "318" - Acquisition-->Demux-->IdcDispDataXfr startedTest skipped because Demux IDC tests failed.*** TEST NOT RUN YET ***Test execution time 0.00015449 secTest "321" - Acquisition-->Dma-->PaDma startedTest skipped because Demux IDC tests failed.*** TEST NOT RUN YET ***Test execution time 0.00017349 secTest "322" - Acquisition-->Dma-->IdcAcqDma startedTest skipped because Demux IDC tests failed.*** TEST NOT RUN YET ***Test execution time 0.00035591 secTest "331" - Acquisition-->Memory-->MemData startedTest execution time 0.020599 secTest "332" - Acquisition-->Memory-->MemAddr startedTest execution time 0.0038114 secTest "342" - Acquisition-->Vertical-->TH Inputs startedTest execution time 0.30105 secTest "345" - Acquisition-->Vertical-->50ohmOvld startedTest execution time 0.90188 secTest "351" - Acquisition-->PLL-->Clock Freq startedTest execution time 0.65833 secTest "371" - Acquisition-->AcqProcessor-->SPI startedTest execution time 0.00016874 secTest "372" - Acquisition-->AcqProcessor-->INT Line startedTest execution time 0.00069087 secTest "373" - Acquisition-->AcqProcessor-->Interrupt startedTest execution time 0.00099873 secTest "374" - Acquisition-->AcqProcessor-->RelayDrive started*** TEST N/A FOR THIS HW ***Test execution time 3.073e-006 secTest "375" - Acquisition-->AcqProcessor-->TWI startedTest execution time 0.00013102 secTest "376" - Acquisition-->AcqProcessor-->PrbInterrupts startedTest execution time 0.00036317 secTest "377" - Acquisition-->AcqProcessor-->TCpowerCtrl started*** TEST N/A FOR THIS HW ***Test execution time 1.6762e-006 secTest "378" - Acquisition-->AcqProcessor-->MAX517 startedTest execution time 0.00093978 secTest "411" - Trigger-->Inputs-->Ch1 startedTest execution time 0.14072 secTest "412" - Trigger-->Inputs-->Ch2 startedTest execution time 0.13072 secTest "413" - Trigger-->Inputs-->Ch3 startedTest execution time 0.13071 secTest "414" - Trigger-->Inputs-->Ch4 startedTest execution time 0.1307 secTest "415" - Trigger-->Inputs-->Line startedTest execution time 0.014745 secTest "416" - Trigger-->Inputs-->Video startedTest execution time 0.21615 secTest "417" - Trigger-->Inputs-->Events startedTest execution time 0.22039 secTest "418" - Trigger-->Inputs-->Serial startedTest execution time 0.3515 secTest "419" - Trigger-->Inputs-->HSMeta started*** TEST N/A FOR THIS HW ***Test execution time 2.2349e-006 secTest "421" - Trigger-->Outputs-->523TrgOut startedTest execution time 0.00050565 secTest "422" - Trigger-->Outputs-->523CpuInt startedTest execution time 0.00047324 secTest "423" - Trigger-->Outputs-->Fedge startedTest execution time 0.043754 secTest "424" - Trigger-->Outputs-->Ftrig startedTest execution time 0.043379 secTest "441" - Trigger-->Word-->Compare started*** TEST N/A FOR THIS HW ***Test execution time 2.5143e-006 secTest "442" - Trigger-->Word-->Delay started*** TEST N/A FOR THIS HW ***Test execution time 2.2349e-006 secTest "443" - Trigger-->Word-->Clk Qualify started*** TEST N/A FOR THIS HW ***Test execution time 1.9556e-006 secTest "444" - Trigger-->Word-->Formed LSST started*** TEST N/A FOR THIS HW ***Test execution time 2.2349e-006 secTest "451" - Trigger-->Digital-->Acq started*** TEST N/A FOR THIS HW ***Test execution time 1.9556e-006 secSat Jan 07 13:52:46 2023: USER MODE POWERUP DIAGNOSTICS RESULTS: 22 (of 67) tests SKIPPEDSat Jan 07 13:52:46 2023: USER MODE POWERUP DIAGNOSTICS RESULTS: 2 (of 45) EXECUTED tests FAILEDProcessor Failures: 0Registers Failures: 0Acquisition Failures: 2Trigger Failures: 0TekLink Failures: 0Test 315 - F ==> Acquisition->Demux->IdcLoSpeed, 0.020886 secdiagIdcLoSpeed FAILEDTest 316 - F ==> Acquisition->Demux->IdcHiSpeed, 0.56149 secdiagIdcHiSpeed FAILED13:52:46:048 diagMgr.cpp:calDiagManager(948) Powerup diags finished in 4.9161 sec<< POWERUP DIAGS FINISHED >>Sat Jan 07 14:10:05 2023: DIAGNOSTIC EXECUTION starting ... Pu=24 T=31CTest "311" - Acquisition-->Demux-->RunAB startedTest execution time 0.30136 secTest "312" - Acquisition-->Demux-->AcqDone startedTest execution time 0.0016745 secTest "313" - Acquisition-->Demux-->SysRdy startedTest execution time 0.0012745 secTest "314" - Acquisition-->Demux-->Interrupt startedTest execution time 0.0031004 secTest "315" - Acquisition-->Demux-->IdcLoSpeed startedError from DEMUX3 to DEMUX4 expect: 000037fe rcv: 00003f56Error from DEMUX3 to DEMUX4 expect: 000037fd rcv: 00003f55Error from DEMUX3 to DEMUX4 expect: 000037fb rcv: 00003f53Error from DEMUX3 to DEMUX4 expect: 000037f7 rcv: 00003f57Error from DEMUX3 to DEMUX4 expect: 000037ef rcv: 00003f47Error from DEMUX3 to DEMUX4 expect: 000037df rcv: 00003f57Error from DEMUX3 to DEMUX4 expect: 000037bf rcv: 00003f17Error from DEMUX3 to DEMUX4 expect: 0000377f rcv: 00003f57Error from DEMUX3 to DEMUX4 expect: 000036ff rcv: 00003e57Error from DEMUX3 to DEMUX4 expect: 000035ff rcv: 00003d57Error from DEMUX3 to DEMUX4 expect: 000033ff rcv: 00003b57Error from DEMUX3 to DEMUX4 expect: 00003fff rcv: 00003f57Error from DEMUX3 to DEMUX4 expect: 000027ff rcv: 00002f57Error from DEMUX3 to DEMUX4 expect: 000017ff rcv: 00001f57Error from DEMUX3 to DEMUX4 expect: 000037ff rcv: 00003f57Test diagIdcLoSpeedRunTest TransmitRight - WalkZeros FAILEDError from DEMUX3 to DEMUX4 expect: 00000808 rcv: 00000800Error from DEMUX3 to DEMUX4 expect: 00000820 rcv: 00000800Error from DEMUX3 to DEMUX4 expect: 00000880 rcv: 00000800Error from DEMUX3 to DEMUX4 expect: 00000000 rcv: 00000800Test diagIdcLoSpeedRunTest TransmitRight - WalkOnes FAILEDError from DEMUX4 to DEMUX3 expect: 000037fe rcv: 00003f56Error from DEMUX4 to DEMUX3 expect: 000037fd rcv: 00003f55Error from DEMUX4 to DEMUX3 expect: 000037fb rcv: 00003f53Error from DEMUX4 to DEMUX3 expect: 000037f7 rcv: 00003f57Error from DEMUX4 to DEMUX3 expect: 000037ef rcv: 00003f47Error from DEMUX4 to DEMUX3 expect: 000037df rcv: 00003f57Error from DEMUX4 to DEMUX3 expect: 000037bf rcv: 00003f17Error from DEMUX4 to DEMUX3 expect: 0000377f rcv: 00003f57Error from DEMUX4 to DEMUX3 expect: 000036ff rcv: 00003e57Error from DEMUX4 to DEMUX3 expect: 000035ff rcv: 00003d57Error from DEMUX4 to DEMUX3 expect: 000033ff rcv: 00003b57Error from DEMUX4 to DEMUX3 expect: 00003fff rcv: 00003f57Error from DEMUX4 to DEMUX3 expect: 000027ff rcv: 00002f57Error from DEMUX4 to DEMUX3 expect: 000017ff rcv: 00001f57Error from DEMUX4 to DEMUX3 expect: 000037ff rcv: 00003f57Test diagIdcLoSpeedRunTest TransmitLeft - WalkZeros FAILEDError from DEMUX4 to DEMUX3 expect: 00000808 rcv: 00000800Error from DEMUX4 to DEMUX3 expect: 00000820 rcv: 00000800Error from DEMUX4 to DEMUX3 expect: 00000880 rcv: 00000800Error from DEMUX4 to DEMUX3 expect: 00000000 rcv: 00000800Test diagIdcLoSpeedRunTest TransmitLeft - WalkOnes FAILEDIDC Low Speed test FAILEDdiagIdcLoSpeed error summary of failing demux pairs:--------------------------------------------------DEMUX3 --> DEMUX4DEMUX4 --> DEMUX3*** TEST FAILED ***Test execution time 0.013694 secdiagMgr:diagLogFailure: Sat Jan 07 14:10:05 2023 D Pu=24 T=31 "diagIdcLoSpeed FAILED"Test "316" - Acquisition-->Demux-->IdcHiSpeed startedError from DEMUX3 to DEMUX4 expect: 00008001 rcv: 2828a829Error from DEMUX3 to DEMUX4 expect: 00010002 rcv: 2829282aError from DEMUX3 to DEMUX4 expect: 00020004 rcv: 282a282cError from DEMUX3 to DEMUX4 expect: 00040008 rcv: 20242028Error from DEMUX3 to DEMUX4 expect: fffbfff7 rcv: fffbffffError from DEMUX3 to DEMUX4 expect: 00080010 rcv: 20282838Error from DEMUX3 to DEMUX4 expect: 00100020 rcv: 08180828Error from DEMUX3 to DEMUX4 expect: ffefffdf rcv: ffefffffError from DEMUX3 to DEMUX4 expect: 00200040 rcv: 08282868Error from DEMUX3 to DEMUX4 expect: 00400080 rcv: 286828a8Error from DEMUX3 to DEMUX4 expect: 00800100 rcv: 28a82928Error from DEMUX3 to DEMUX4 expect: 01000200 rcv: 29282a28Error from DEMUX3 to DEMUX4 expect: 02000400 rcv: 2a282c28Error from DEMUX3 to DEMUX4 expect: 04000800 rcv: 24202828Error from DEMUX3 to DEMUX4 expect: 08001000 rcv: 28283828Error from DEMUX3 to DEMUX4 expect: 10002000 rcv: 18082828Error from DEMUX3 to DEMUX4 expect: 20004000 rcv: 28286828Error from DEMUX3 to DEMUX4 expect: 40008000 rcv: 6828a828Test FAILEDError from DEMUX4 to DEMUX3 expect: ffff7ffe rcv: ffff7f7eError from DEMUX4 to DEMUX3 expect: fffefffd rcv: 7f7e7f7dError from DEMUX4 to DEMUX3 expect: fffdfffb rcv: 7f7d7f7bError from DEMUX4 to DEMUX3 expect: fffbfff7 rcv: 7f7b7f77Error from DEMUX4 to DEMUX3 expect: fff7ffef rcv: 7f777f6fError from DEMUX4 to DEMUX3 expect: ffefffdf rcv: 7f6f7f5fError from DEMUX4 to DEMUX3 expect: ffdfffbf rcv: 7f5f7f3fError from DEMUX4 to DEMUX3 expect: 00400080 rcv: 00400000Error from DEMUX4 to DEMUX3 expect: ff7ffeff rcv: ff7f7e7fError from DEMUX4 to DEMUX3 expect: fefffdff rcv: 7e7f7d7fError from DEMUX4 to DEMUX3 expect: fdfffbff rcv: 7d7f7b7fError from DEMUX4 to DEMUX3 expect: fbfff7ff rcv: 7b7f777fError from DEMUX4 to DEMUX3 expect: f7ffefff rcv: 777f6f7fError from DEMUX4 to DEMUX3 expect: efffdfff rcv: 6f7f5f7fError from DEMUX4 to DEMUX3 expect: dfffbfff rcv: 5f7f3f7fError from DEMUX4 to DEMUX3 expect: bfff7fff rcv: bfff7f7fTest FAILEDdiagIdcHiSpeed error summary of failing demux pairs:--------------------------------------------------DEMUX3 --> DEMUX4DEMUX4 --> DEMUX3Retrying tstDiagIdcHiSpeed test ... T=31CError from DEMUX3 to DEMUX4 expect: 00008001 rcv: 2828a829Error from DEMUX3 to DEMUX4 expect: 00010002 rcv: 2829282aError from DEMUX3 to DEMUX4 expect: 00020004 rcv: 282a282cError from DEMUX3 to DEMUX4 expect: 00040008 rcv: 20242028Error from DEMUX3 to DEMUX4 expect: fffbfff7 rcv: fffbffffError from DEMUX3 to DEMUX4 expect: 00080010 rcv: 20282838Error from DEMUX3 to DEMUX4 expect: 00100020 rcv: 08180828Error from DEMUX3 to DEMUX4 expect: ffefffdf rcv: ffefffffError from DEMUX3 to DEMUX4 expect: 00200040 rcv: 08282868Error from DEMUX3 to DEMUX4 expect: 00400080 rcv: 286828a8Error from DEMUX3 to DEMUX4 expect: 00800100 rcv: 28a82928Error from DEMUX3 to DEMUX4 expect: 01000200 rcv: 29282a28Error from DEMUX3 to DEMUX4 expect: 02000400 rcv: 2a282c28Error from DEMUX3 to DEMUX4 expect: 04000800 rcv: 24202828Error from DEMUX3 to DEMUX4 expect: 08001000 rcv: 28283828Error from DEMUX3 to DEMUX4 expect: 10002000 rcv: 18082828Error from DEMUX3 to DEMUX4 expect: 20004000 rcv: 28286828Error from DEMUX3 to DEMUX4 expect: 40008000 rcv: 6828a828Test FAILEDError from DEMUX4 to DEMUX3 expect: ffff7ffe rcv: ffff7f7eError from DEMUX4 to DEMUX3 expect: fffefffd rcv: 7f7e7f7dError from DEMUX4 to DEMUX3 expect: fffdfffb rcv: 7f7d7f7bError from DEMUX4 to DEMUX3 expect: fffbfff7 rcv: 7f7b7f77Error from DEMUX4 to DEMUX3 expect: fff7ffef rcv: 7f777f6fError from DEMUX4 to DEMUX3 expect: ffefffdf rcv: 7f6f7f5fError from DEMUX4 to DEMUX3 expect: ffdfffbf rcv: 7f5f7f3fError from DEMUX4 to DEMUX3 expect: 00400080 rcv: 00400000Error from DEMUX4 to DEMUX3 expect: ff7ffeff rcv: ff7f7e7fError from DEMUX4 to DEMUX3 expect: fefffdff rcv: 7e7f7d7fError from DEMUX4 to DEMUX3 expect: fdfffbff rcv: 7d7f7b7fError from DEMUX4 to DEMUX3 expect: fbfff7ff rcv: 7b7f777fError from DEMUX4 to DEMUX3 expect: f7ffefff rcv: 777f6f7fError from DEMUX4 to DEMUX3 expect: efffdfff rcv: 6f7f5f7fError from DEMUX4 to DEMUX3 expect: dfffbfff rcv: 5f7f3f7fError from DEMUX4 to DEMUX3 expect: bfff7fff rcv: bfff7f7fTest FAILEDdiagIdcHiSpeed error summary of failing demux pairs:--------------------------------------------------DEMUX3 --> DEMUX4DEMUX4 --> DEMUX3*** TEST FAILED ***Test execution time 0.56268 secdiagMgr:diagLogFailure: Sat Jan 07 14:10:05 2023 D Pu=24 T=31 "diagIdcHiSpeed FAILED"Test "317" - Acquisition-->Demux-->IdcAcqDataXfr startedTest skipped because Demux IDC tests failed.*** TEST NOT RUN YET ***Test execution time 0.00020058 secTest "318" - Acquisition-->Demux-->IdcDispDataXfr startedTest skipped because Demux IDC tests failed.*** TEST NOT RUN YET ***Test execution time 0.00024277 secSat Jan 07 14:10:06 2023: DIAG MODE DIAGNOSTICS RESULTS: 2 (of 8) tests SKIPPEDSat Jan 07 14:10:06 2023: DIAG MODE DIAGNOSTICS RESULTS: 2 (of 6) EXECUTED tests FAILEDTest 315 - F ==> Acquisition->Demux->IdcLoSpeed, 0.013694 secdiagIdcLoSpeed FAILEDTest 316 - F ==> Acquisition->Demux->IdcHiSpeed, 0.56268 secdiagIdcHiSpeed FAILEDDIAGNOSTIC EXECUTION finished in 0.94508 secanybody have any experience in reflowing / reballing these guys without damaging the board or tracks below?

author: mikehank
author_rank: Regular Contributor
timestamp: January 09, 2023, 07:37:03 pm
content: I have lots of experience reballing/replacing Demux's on these boards. I had access to a BGA rework machine. I'm not sure I would try a reflow on a lead free board. To hot and and risky.

author: charlyd
author_rank: Frequent Contributor
timestamp: January 09, 2023, 07:57:27 pm
content: today i took the chip off one of the two chips, i just warmed up the heatsink for 1,5 min at just over 400c. and then i could easy take it off the board.i found this on the bottom of the chip a little swallen... very little.ad a close up picture. but how can i find out the swallen part is still ok? diode test between the pads ?if somebody have a Donor board for sale from a DPO7000 series please get in touch with me.(also for just one chip contact me)National Semiconductor:----------------------Demultiplexer----VT626ESADG387CMM9617C167-0138-004673-0

author: mikehank
author_rank: Regular Contributor
timestamp: January 09, 2023, 09:33:22 pm
content: Here is what i would do. Your looking for open pads. Find a grounding pad(should be common with a bunch of pads). Then do a resistance check with pads in the bubbled area. One more thing to consider this bubble may not allow the BGA to sit correctly down. When I have manually pulled these chips is removed the heatsink 1st. Put a small thermocouple under the BGA(it will fit) and keep an eye on the temps as you heat the chip.

author: charlyd
author_rank: Frequent Contributor
timestamp: January 15, 2023, 09:26:36 am
content: thanks for your reply i will certain check out the pads and see if it is still worthit. i got myself a rework station.i found a picture on the web of a simulair chip i am looking for.but what is the partnumber ? ADG387C or MM9617C-FBB or ? ( i am a little confused)who can help me out with a donor chip or board?a internet picture is shown below

author: charlyd
author_rank: Frequent Contributor
timestamp: February 20, 2023, 10:06:49 am
content: hi all i found this article in the tek forum: does anybody have experience with this:-> receive the SINE, SINE33 and SQUARE Aquisition diagnostic errors.?https://forum.tek.com/viewtopic.php?t=137781

author: iAleks
author_rank: Regular Contributor
timestamp: December 19, 2024, 11:37:27 pm
content: First i want update photo with name ic.I dont like your photo spot.jpglooks like this demux broken now, i dont like bubble on pcb.This scope need reball DEMUX 3 and 4, debug log tell error's in DEMUX 3 or 4, better reball this two chip at onceI write in other your topic wait my message about how and some tips reballing this chip, here is same please wait message.

author: iAleks
author_rank: Regular Contributor
timestamp: December 23, 2024, 12:32:12 am
content: Here video showing how desolder and repair pad if need:For reballing i use 0.5mm balls,Temperature for desoldering and soldering of heters like in videoBottomm heater on my soldering station i setup in 4 stage 200-250-300-330C (I measure the board temperature with infrared thermometer for achieve 150C)Top heater if chip with heatsink 280C, if chip without heatsink 260CAfter chip reball completed, i apply manually solder paste on every pad on PCB then place chip on PCB (i dont like use only flux for chip like this)Tomorrow I will write the resistance of the pins

author: charlyd
author_rank: Frequent Contributor
timestamp: January 25, 2025, 03:36:11 pm
content: Hi iAleks, very good work you did there. yes for sure i will wait for you reballing video.. in your case all 4 AD convertors needed reballing is that it?