Strange audio problem with Messiah 2 chip

[IVAHOTROD]

too much of a coincidence to be honest

ok before chipping - not ok after chipping ??

i think it is possibly a bridge on one of the connections, its not hard to do it and not see it, trust me, ive been doing these things
for years, and every now and then one comes round to give me a headache !!

One just recently, chipped it prefectly, switched it on, and nothing worked, checked and re-checked all points same result, turned out to be the smallest ribbon cable wasnt even pushed into its slot, it was sitting just underneath the slot and appeared to be in, that one cost me about three hours of my life , lol !!

but seriously, go over all the points with a magnifying glass to rule
out the obvious. failing all of the above, yes your ps2 is definitley Fecked !!!