good day tom66, i see where you help a lot of people, i need your help to repairs a toshiba projection tv ballast RPB4434ZA ,i found (r3--d5--d6--open, r3 seem to me a 1k ohms resistor,d5 and d6 has no number on them,is there any replacement diode number,?and what kind of diode is it,I needs your help thanks you.