http://www.cleverscampcamp.com/lamp-assembly/
How can I replace the thermistor or lamp power supply in my Mitsubishi DLP 62525 TV?
When I turned it on the screen lit up briefly, faded out, almost came on again & then went black. The red lamp bulb came on. I replaced bulb assembly, but when I start it up it tries to come on, but no light whatsoever, then that darn red light comes on & stays on. I have triple checked to make sure it is plugged in securely. I figure it must be power supply or something else that is not getting power to lamp. I assume new bulb is good; there is not any continuity between the plug prongs like I would expect in a “regular” bulb; I haven’t taken the thing apart to check any actual bulb leads.
Are you an experienced service engineer? The problem is somewhere else and not as you think. Have you got the circuit diagram of the TV. Check the circuit for correct voltages in all the places.
Still no solution! Call/consult with an experienced service engineer.
CFL LAMP ASSEMBLY LINE AND AGING LINE