Hi guys; I've finally come to a roadblock with my TV. Hopefully someone can help or give me some ideas...
I have a 62CM9UA 62” Toshiba DLP rear projection television (Australian model) which has stopped working for a few months now.
The first lamp died at the end of last year after about 8000hrs and replaced with a genuine Toshiba lamp & housing which worked flawlessly for another 4-5months.
This is where we’re at now. Without testing anything, I thought it was just another lamp gone; ordered another and tried it out – no dice. After reading up a little about the status LEDs, it looked like it was a (as the manual states) an ‘ABNORMAL OPERATION OF BUS LINE’. Believing that this may be related to the televisions power supply, I found some info about the Toshiba’s ballast unit dying. I ordered the part, installed tonight and still no joy.
What I have noticed is that, on normal operation, there are 2 fans starting up with a higher than normal rpm then settling down to a nominal rpm after start-up; during this troubleshooting process, you cannot hear the two fans (or at least the start-up faster rpm) running. The fan cooling the lamp is working, but tomorrow I will check if the ballast cooling fan is operating properly.
Is there anything else you think I should look for?