thanks bob. We know Phil doesn't like to admit when he's wrong

I've already admitted that the 6000 is quirky but I know the 5000 & 3000 only work with the original 4 slots
Finally I found those old receivers and convince an owner give them a chance.
Nope, the stupid 5000 found one and 1/2 sats with wrong displacement (see a picture below) with latest SW 870P
connected to output#1 or output#4 of DP44 with 119/110/129/118
and PI on output#1 and 622 on output#2. Ugh !
Can't use other receiver [3000] - it doesn't start at all,
TV screen have gray color regardless S-VHS or composite output (not that dead black ), pressed all buttons - no dice.
Continue play with 5000 ( Fathers day

): disconnect all output ports, left PI and 5000 on #1, see what I got

. Nothing !
OK. Found the reason for last fail - central wire of coax from PI to DP44 was too short, the DP44 have deep 'throat' and requred the wire comes out of F-connector for 2-3 mm.
A couple more tests: with 119/110 only the 5000 pass tests, but if I connect 129 or 118 to third input, it show the first picture.

So, it not learning form stream, sob.