SOURCE: Solid yelow led and the red led is flashing
Check your manual or:
http://www.toshiba.ca/web/pdf/5056HM66_EN.p.pdf
Use the quick restart procedure
SOURCE: My toshiba 50HN67 TV won't power on.
I have the same TV and had the same problems. What worked for me. I tuned off the set unbluged the TV, waited about five minutes and replugged and resolved my problem. Hope this works for you.
SOURCE: 52HM84 Toshiba DLP with apparent failed lamp (replaced ballast)
I found R3 on the original board to be open, along with reading an open on CR1, D5 and D6. All the other transistors and the transformer check out. The only thing I have to do now is find out the specs of the diodes. The replacement board also had CR1, D5 and D6 open (R3 was OK). There had been some threads on various locations where remanufactured boards had bad components (the transistors were changed but not some of the other components).
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