20 Most Recent Mitsubishi WD-62725 62" Rear Projection HDTV-Ready Television - Page 4 Questions & Answers

Sounds like you need a convergence board. Problem is there might be some transistors that you need as well. I've had a similar issue. Most places will cost $300+ to replace what might be a $15 part. Also there are 2 transistors in there that need to be replaced at the same time (once one goes the other is likely to as well). I would suggest calling Sears to fix it. They charge much less for the visit ($99 min charge) and will replace both parts at the same time.
Sorry I know that's not a true answer on how to replace the convergence board or other parts but mucking around in a rear project tv is a good way to get shocked. Those TV's hold a lot of charge even after unplugging.

http://www.searshomeservices.com/televisions/repair

Need to call for service . Chassie needs to be replaced . Had same problem

You need to call for contract service . Chassie needs to be replaced . Had the same problem .

Take the front screen off and dust the inside mirrors

get a ohm meter and check all fuses ,and diodes they should all read 0. the ones do read something are bad replace them that means solder them out and back in

If the green front panel LED blinks continuously and the TV never comes on, its an issue with the "DM" board. When these TVs are first plugged in, the green LED should blink for 30 sec. to a minute or so. This is the TV booting up, reading its software. Mitsubishi has been having problems with this circuit for several years. In may cases the only permanent solution is to have the chassis rebuilt by Mitsubishi at considerable cost and inconvience. The chassis may have to be sent back to Mits for this rebuild. Call Mits and ask for help.

michtech

Your main boards are bad. They are no longer available, You have to have the chasis rebuilt. Mitsubishi is rebuilding these chasis. You have to pull it without any cut wires & ship to Georgia.
tvdoctor

Your main boards are bad. The FMT, DM, & Power Supply. They are no longer available, You have to have the chasis rebuilt. Mitsubishi is rebuilding these chasis. You have to pull it without any cut wires & ship to Georgia.
tvdoctor, T.O., Ca

these tv's need to be plugged into an outlet to get power to them.
or are there no lights at all, or do you hear a click, or does it start up then turn off, or does the lamp turn on for 5 seconds then turn off.
need more info.

try changing output settings like pal, ntsc, stuff like that

go in menu there should b options in there to set it to cable tv instead u have the option set on air or antenna instead of cable

Replace Lamp. Mats has Lamps on Sale $89.00 1-800-628-1118

This is an indication that you have a problem on the power supply section or on the load because of the following reasons :

1. Over Voltage - the regulator might be cycling on over voltage due to lack of load.

2. Over Current Protection - excessive load or faulty power supply cycling will

trigger the over current protection circuit.

3. Leaky Capacitor - a dried up main filter capacitor or other filter capacitor in the power supply that is producing an out-of-regulation condition. A bad filter capacitor on the output of a series regulator may result in excessive/drop of voltage once sense by the processor it will not power up the unit unless isolated.

4. A problem with the microcontroller, relay or its driver, or standby power supply.

This is not DIY and quite technical so I've advice you to look for a qualified technician or send it to repair shop to isolate the problem.

But first check if your unit is under warranty then avail it because the manufacturer of your unit will fix it for free or with a little charge only.

Thanks for using fixya.

Please rate my help.

If the set is 6 years old I would not put $550 into it, but a new 60-65 DLP should only run you from 1200-1800. If you check around you will find alot of Mits DLPs on the internet for even less.

turn on again using remote

the capacitors on the power board are the most likely the cause of the problem.

You'll have to check your standby voltages and make sure they are present. If they are not then the power supply needs repaired or replaced. Caps, as they are going bad can fatigue a power supply.

the video goes though the PIP module, and there are a couple of surface mounted electrolytic caps that need to be changed, and that will take care of your problem.

There's a recessed "SYSTEM RESET" button on the front panel.  Use something with a point to press it and wait.http://www.mitsubishi-tv.com/pdf/ownersguides/WD-57734.pdf