Question about Mitsubishi WD-65731 65" HDTV
I tried the input / Format reset as well as the small reset button under the front cover. Still not having any success. Hoping we dont have to buy a new TV.
Try a "REBOOT"
Reset, Initialization &
Front Panel Reset & Initialization
Many customer generated symptoms, intermittent symptoms
or symptoms that cannot be duplicated can be resolved
by performing resets or initialization from the front
panel. To avoid making nuisance service calls that may
not be covered under the warranty, ask the customer to
perform the following functions before going to their
The most common are:
• System Reset (Re-boot)
• A/V Reset (Resets Customer Audio/Video
• Initialization (Resets all customer options,
settings and menu items)
Use the Front Panel Guide as a reference to quickly
perform the desired function. Note: Button location may
differ by model.
The Reset - Initialization Guide details all resets and initialization
Front Panel Guide
1) SYSTEM RESET1 - Reboots Set
(Same as Cycling AC Power)
Power LED will flash for about
2) A/V RESET2 <FORMAT+GUIDE>
Resets all Customer Audio/Video Settings
FORMAT GUIDE INPUT
3) INITIAL2 <FORMAT+INPUT>
Resets all Customer Menu and
LED DIAGNOSTICS3 <INPUT+MENU>
In case of failure, a 2 digit error code will
be indicated by the POWER/TIMER LED.
1 Perform while the set is either On or Off. (See section on LED Diagnostics)
2 Perform while the set is On.
3 Perform while the set is Off.
Posted on May 15, 2014
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Posted on Jan 02, 2017
Your problem is one and or 2 differant problems. The power regulator could have went bad because of the convergence IC have shorted. Seen this a thousand(easy that!)Times. All parts in this set are soldered in and are not user serviceable. look in your owners manual or call 800-332-2119 to get an authorized servicer to come and look at your problem . I wish i could tell you what to replace but theres the Extreme Hi voltage inside these sets even when they are not plugged in .. Good Luck
Posted on Jun 16, 2006
SOURCE: sound no pic
Convergence ICs are STK392-110 you will need two of them they are available at the link I am posting and they give free instalation instructions with pics and free tech support so you can do the repair yourself.Heres the link.
Posted on May 01, 2008
I unplugged the manual switch electrical connection. Everything works just fine with the remote.
Not sure what is wrong with the switches just yet, but suspect a resistor problem. I have checked all voltages and have 5.04 v feeding the switch assembly on what I feel are the correct circuits
(5v, ksco, ksc1, man/reset). I have no voltage on the ground circuit with the board plugged in, so the ground circuit should be ok. I have tested all switches with ohmmeter, all switches work. I suspect a resistor problem as I have one with no voltage drop and one resistor with no voltage pass-thru. Would need a wiring schematic with values to pinpoint better.
Posted on May 18, 2009
Your Power supply will most likely have to be replaced. Very common, the capacitor's inside these units due tend to get overheated and burn out. You can test power coming from the power supply with a voltmeter
Posted on Sep 30, 2009
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