Search found 4 matches

by N49
Sat Jun 05, 2010 3:50 pm
Forum: Toshiba DLP Discussion
Topic: Do all DLP ballasts spark?
Replies: 5
Views: 12465

Re: Do all DLP ballasts spark?

Installed the lamp, held my breath and pushed the power. Luckily it lit as I decided I would cut my losses if something else was wrong with this TV. Do you know of a site that documents the service menu's for Toshiba's? I can get into it but it really isn't user friendly. Seems to be based on a comp...
by N49
Wed Jun 02, 2010 4:51 pm
Forum: All About Lamps
Topic: Lamp/Ballast troubleshooting
Replies: 6
Views: 23212

Re: Lamp/Ballast troubleshooting

Perhaps the high temp limit switch is being tripped by an overheating condition. Have you checked that all your fans are operating and the intakes/ exhaust ports are not obstructed? You could connect a continuity tester to the switch and watch for a break in continuity when the TV switches off. If t...
by N49
Tue Jun 01, 2010 10:51 pm
Forum: Toshiba DLP Discussion
Topic: Do all DLP ballasts spark?
Replies: 5
Views: 12465

Re: Do all DLP ballasts spark?

Pepe, thanks for the URL explaining the anatomy of a Mercury Vapor lamp. I had a close look at the ignition chamber on my bulb and noticed it had a small crack and the interior was a bit black. My last bulb exploded so this is why I was suspecting the ballast when this lamp failed to light. I was aw...
by N49
Tue Jun 01, 2010 4:27 am
Forum: Toshiba DLP Discussion
Topic: Do all DLP ballasts spark?
Replies: 5
Views: 12465

Do all DLP ballasts spark?

Hi, Got a Toshiba 46HMX85. Bulb failed to light a few days ago. Read everything I could find and took the entire TV apart to check for anything obvious, and because I always wanted to. One thing I'm confused about is the constant mention of a Spark Gap on the ballast. This thing looks pretty solid s...

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