Hi Sir, I have the same problem with my amp A707, from what I know, this is a result of the circuit protection unit activating because it senses something wrong in the amp to avert further damage.
"Mga masters" can you help us on the most probable cause of this problem, my amp stops after I played a few songs.
Thanks.
Our experience with our present AU-55F model (those with no CD input) has something to do with CD output ... CD output has high voltage level than the earlier formats (phono & tape & aux) ... sansui with no CD input may trigger protection circuit if it received CD signal beyond its sensitivity rating where you plugged the CD player
With some DVD players (probably generic and could be some 'branded' obes), the output may not strictly subscribed to the limit of CD signal output level ... so the more it will induce sansui protection circuits ...
What to do? ... some DVD players has some sort of volume control which lowers the output signal going to your amps ... try to lower the level and experiment if you will still get the same problem.
For 120V transformer or 110V ... typically if you are not the first drop in a meralco post, chances are you are way below the meralco standard of 220Vac, probably within 200-210Vac, thus 110Vac transformer should be fine. For those near transformer, typically you may get 225-230Vac - that even your 100Vac transformer will have a hard time outputting that 100Vac ... an AVR with 100Vac may help.