First off, you shouldn't have replaced the HOPT without replacing the transformer, it's a VERY, VERY, VERY common problem on these sets. My technique, if the transistor is S/C, is to very carefully examine the line driver transformer for dry joints, because this commonly causes the HOPT to fail. If there are no drys, then I replace the LOPTX without ever turning it ON - as doing like you did, probably killed the uP.
The uP number you have isn't a Sony one, and fairly obviously buying a blank one (or one manufactured for a different set) isn't going to work at all. Presumably the numbers on the end tell what set it's actually for, and it's NOT a Sony - as it's mask-programmed it's not going to be blank though.
Your only solution is to get a new correct IC from Sony spares.
Incidently, in the 4:3 sets (like this one) it probably takes out the uP in 50% of cases, the identical chassis 16:9 versions only rarely take the IC out.