Hi, kibkib. Can you write something more that you mentioned? U2? ZSAO 698 A199. Something else?
I have a TS-453B and it acts like yours - the red LED blinking, not passing the POS, no beep, no display. It stopped working by itself. For now, I would like to check the problem from the power supply. 100 Ohm resistor on the LPC connector does nothing.
My mail
piotrek_ix@o2.pl