Fluke Z80 Pod Bad?

KI4SWY

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Donor 5 years: 2013, 2020-2023
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OK, so, i think U3 (74LS245) Enable line is stuck high or low (i have not taken the pod apart yet), but if the pod is in a "stop" state (ie, the Screen says "FLUKE 9000 READY" the UUT address lines A0-A7 are going Hi/Low, if i do a READ on say 0xFF00 , and hit LOOP, again, A0-7 are toggling High/low..

Self test "passes" but, according to the manual that means didly squat. (well, not exactly, but it does say self-test may pass, but the pod still be inoperatable)
 
This maybe the reason i been pulling my hair out on a MCR boardset, and the current UUT i am working on, can someone "check" there z80 pod, and see if it does the same thing?

Pleeeease..
 
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