Dani wrote:
Model # P56812BL, Chassis # CTC195A2, dead with 8-pin SMPS Reg IC
U14101 TDA4605-3 blown apart, Q14101 IRF740 shorted, R14125 badly
burnt, replaced these parts, horizontal output, convergence power
supply, as well as secondary diodes in SMPS, all check fine, no other
static
shorts. Plug in unit, & instantly blows these parts again. Did I miss
something? Thanks, Dani.

Looks like you missed some pretty basic troubleshooting, let alone the
root cause of the failure. You plugged the unit in after replacing
multiple parts in two main power circuits?

Start with the basic SMPS troubleshooting first, then move in to basic
troubleshooting the horizontal output circuit.

If you are not sure how to properly load the SMPS to verify regulation
on reduced AC line voltage or how to reduce the voltage to the
horizontal output stage, you might want to contact a local technician
to have a go at the set or another well experienced technician in your
shop to assist.