Power Source Delta DPS-235DP PWM burnt

Seems that pwm there is of 7500 type. Perfectly changable to 494.

Physically resembles any type of TNY (tny266, tny277, etc.) may be any one of them).

Can your show photo of this psu pcb?

of the components that are in the plate is integrated DP2A smd

I put the integrated tny277pn and instead of the original P6KE160A diode I put the 1.5KE160A. When connecting the source the same returned to work normally, the question would be if the original tny could not be the tny280 since the tny280 could not find to buy.

Do not panic.
On standby normally works even TNY276.