Vertical Test Group Self Test Failed on Agilent MSO8104A - Page 1
Forum section: electronics / repair

author: admiralmaggie
author_rank: Contributor
timestamp: April 27, 2017, 05:41:46 pm
content: I'm getting "Vertical Test Group" Failed on my Agilent MSO8104A. It does not provide any other information at all. The service manual says it should specify exactly which test under Vertical Test Group failed but the error log doesn't say anything other than "Vertical Test Group: Failed". All other tests are passing and scope appears to be functioning properly. Any thoughts on this?

author: admiralmaggie
author_rank: Contributor
timestamp: April 27, 2017, 07:43:56 pm
content: Here is more details. I found the log file. All values look nominal... Any help is greatly appreciated:Code:** Test Run ** Scope Tests --- 27 APR 2017 13:12:01Reference setting for gain ratioPreamp Settings Chan 1 , CPL=DC, IMP=HiZ, BWL=OFF****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.614407&E, Expected Ratio(+/-20%)=2.600000****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X1, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.009772&E, Expected Ratio(+/-20%)=2.000000****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=255Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B1.615183&E, Expected Ratio(+/-20%)=1.600000****INPUT=G1, Mux=X1, GainSet1=X1, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.029605&E, Expected Ratio(+/-20%)=2.000000****INPUT=G1, Mux=X2, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B0.040111&E, Expected Ratio(+/-20%)=0.040300****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Reference setting for gain ratio****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.607465&E, Expected Ratio(+/-20%)=2.600000****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X1, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B1.613885&E, Expected Ratio(+/-20%)=1.600000****INPUT=G2, Mux=X1, GainSet1=X1, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.026905&E, Expected Ratio(+/-20%)=2.000000****INPUT=G2, Mux=X2, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Reference setting for gain ratioPreamp Settings Chan 2 , CPL=DC, IMP=HiZ, BWL=OFF****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.599576&E, Expected Ratio(+/-20%)=2.600000****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X1, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.011475&E, Expected Ratio(+/-20%)=2.000000****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=255Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B1.608126&E, Expected Ratio(+/-20%)=1.600000****INPUT=G1, Mux=X1, GainSet1=X1, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.028099&E, Expected Ratio(+/-20%)=2.000000****INPUT=G1, Mux=X2, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B0.039720&E, Expected Ratio(+/-20%)=0.040300****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Reference setting for gain ratio****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.601717&E, Expected Ratio(+/-20%)=2.600000****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X1, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B1.607186&E, Expected Ratio(+/-20%)=1.600000****INPUT=G2, Mux=X1, GainSet1=X1, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.024429&E, Expected Ratio(+/-20%)=2.000000****INPUT=G2, Mux=X2, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Reference setting for gain ratioPreamp Settings Chan 3 , CPL=DC, IMP=HiZ, BWL=OFF****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.610994&E, Expected Ratio(+/-20%)=2.600000****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X1, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.024590&E, Expected Ratio(+/-20%)=2.000000****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=255Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B1.612272&E, Expected Ratio(+/-20%)=1.600000****INPUT=G1, Mux=X1, GainSet1=X1, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.031250&E, Expected Ratio(+/-20%)=2.000000****INPUT=G1, Mux=X2, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B0.040159&E, Expected Ratio(+/-20%)=0.040300****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Reference setting for gain ratio****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.607963&E, Expected Ratio(+/-20%)=2.600000****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X1, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B1.616540&E, Expected Ratio(+/-20%)=1.600000****INPUT=G2, Mux=X1, GainSet1=X1, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.026127&E, Expected Ratio(+/-20%)=2.000000****INPUT=G2, Mux=X2, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Reference setting for gain ratioPreamp Settings Chan 4 , CPL=DC, IMP=HiZ, BWL=OFF****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.624190&E, Expected Ratio(+/-20%)=2.600000****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X1, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.025000&E, Expected Ratio(+/-20%)=2.000000****INPUT=G1, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=255Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B1.615691&E, Expected Ratio(+/-20%)=1.600000****INPUT=G1, Mux=X1, GainSet1=X1, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.038591&E, Expected Ratio(+/-20%)=2.000000****INPUT=G1, Mux=X2, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B0.039324&E, Expected Ratio(+/-20%)=0.040300****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Reference setting for gain ratio****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.603189&E, Expected Ratio(+/-20%)=2.600000****INPUT=G2, Mux=X1, GainSet1=X1.6, GainSet2=X1, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B1.611123&E, Expected Ratio(+/-20%)=1.600000****INPUT=G2, Mux=X1, GainSet1=X1, GainSet2=X2.6, Vernier=0Status: &C0&&B -- PASSED&E, Gain Ratio=&C4&&B2.019343&E, Expected Ratio(+/-20%)=2.000000****INPUT=G2, Mux=X2, GainSet1=X1.6, GainSet2=X2.6, Vernier=0Chan 1 Relay actuations:***Imp Sel = 0 ***25x Atten = 0 ***10x Atten = 0Chan 2 Relay actuations:***Imp Sel = 0 ***25x Atten = 0 ***10x Atten = 0Chan 3 Relay actuations:***Imp Sel = 0 ***25x Atten = 0 ***10x Atten = 0Chan 4 Relay actuations:***Imp Sel = 0 ***25x Atten = 0 ***10x Atten = 0Desired Preamp Differential Output Voltage = 0.200VOffset Dac = 0x0 Offset Range = 1 (+Chan 1 ) = 0.403V (-Chan 1 ) = 0.604VDesired Preamp Differential Output Voltage = -0.200VOffset Dac = 0x0 Offset Range = 1 (+Chan 1 ) = 0.604V (-Chan 1 ) = 0.404VDesired Preamp Differential Output Voltage = 0.200VOffset Dac = 0x0 Offset Range = 1 (+Chan 2 ) = 0.402V (-Chan 2 ) = 0.602VDesired Preamp Differential Output Voltage = -0.200VOffset Dac = 0x0 Offset Range = 1 (+Chan 2 ) = 0.603V (-Chan 2 ) = 0.403VDesired Preamp Differential Output Voltage = 0.200VOffset Dac = 0x0 Offset Range = 1 (+Chan 3 ) = 0.403V (-Chan 3 ) = 0.603VDesired Preamp Differential Output Voltage = -0.200VOffset Dac = 0x0 Offset Range = 1 (+Chan 3 ) = 0.604V (-Chan 3 ) = 0.404VDesired Preamp Differential Output Voltage = 0.200VOffset Dac = 0x0 Offset Range = 1 (+Chan 4 ) = 0.403V (-Chan 4 ) = 0.603VDesired Preamp Differential Output Voltage = -0.200VOffset Dac = 0x0 Offset Range = 1 (+Chan 4 ) = 0.604V (-Chan 4 ) = 0.404VTest: &B&UVertical Test Group&E&C13&&B -- FAILED&ETest: &B&UTrigger Test Group&E&B -- PASSED&EChan 1 Slice Data = 88,94,90,97,91,89,87,89,89,88,96,88,91,94,92,96,Chan 2 Slice Data = 67,68,65,67,65,64,65,69,63,63,73,70,69,71,65,62,Slices in error = 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,Chan 3 Slice Data = 63,68,60,62,70,63,65,69,62,57,60,62,64,67,62,66,Chan 4 Slice Data = 64,72,66,64,63,71,70,64,64,66,69,66,61,63,63,66,Slices in error = 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,Test: &B&UAdc Test Group&E&B -- PASSED&ELong Count = 105Long Count Residue = 148Short Count = 60Short Count Residue = 149Test: &B&UTimebase Test Group&E&B -- PASSED&ETest: &B&UAcq Interface Test Group&E&B -- PASSED&ETest: &B&UAcq Memory Group&E&B -- PASSED&ESystem Temp 36.7 Degrees CTest: &B&UMisc Scope Test Group&E&B -- PASSED&E&BFinal Result: &E&B&UScope Tests&E&C13&&B -- FAILED&E

author: admiralmaggie
author_rank: Contributor
timestamp: May 04, 2017, 04:39:58 pm
content: UPDATE: I ran Self Calibration a few times and it passes but the pesky Vertical Group test still fails... Any suggestions?