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2007 Mitsubishi 732 series Owner's Thread (57732, 65732, 73732) - Page 85

post #2521 of 2650
videobruce - I have a mits 73732 and the lamp light came on/no picture/audio still working ... I pulled the lamp, bulb was not shattered, so I blew the dust on the wire mesh grill, replaced lamp and still no picture ... After reading some other posts, and your thinking maybe replacing ballast - could you provide me with suggestions on how to do that and where to buy a replacement ballast ... River Valley didnt seem to have on that fit the 73732.

Also - I did not know how to find the sticky on TV Repair ... Not even sure what a "sticky" is ... lol ...

Thanks so much for you help!
post #2522 of 2650
"Stickies" are at the top of any forum. There are only three here.
I never looked into changing a ballast, so I can't be of much help other than referring you to my thread.
Are you sure the lamp didn't fire up? Look at the back for light leakage out of the vents. I didn't think you would have anything (audio) if the lamp doesn't fire.
post #2523 of 2650
My father's WD 52631 bulb went out for the 3rd time and he ended up replacing the TV he's had it since 2007. So now I have it now. I bought a new Osram Bulb for $125 and it works fine. No other issues with it except it always seemed that the contrast was way too high. I've tried adjusting it many times over the years but never seem to be able to get the picture right. After searching the web on some fixes I found that this is a common problem with the 52631 and there is no real fix. I also read about overheating and airflow problems.

While I was replacing the bulb I took a look around. Lots of dust along the back of the TV and vents, I opened the round side panel and took a look inside. Seems there's a fine layer of dust over the projector lens. So I figured out how to take the front screen off and removed the 162 screws, well not really but there was a lot of screws to remove, and cleaned the lens. The screen looked fine, the mirror looked good and I wiped cleaned the interior box. Turned it back on and it seems the picture looks much better but ofcourse the contrast still seems off but maybe not as bad.

Next I started removing the back panel looking for the fan motor to clean it out but stopped. Lots of dust inside along the back. Before I proceed I wanted to find out the best way to clean this all out. I was thinking a few good shots with the canned air but wanted to check with you guys. I couldn't find any service instructions or removal of parts on the web.
The air flow through the lamp housing vent seems to be really good.

I also own a WD 73732 since Feb 2007. I haven't looked inside to see how dusty the lens is but the screen is a beast. I've only gone through 1 bulb and that was just a couple of months ago, 2 weeks prior to my 4 year ext. warr. ran out. How lucky was that..... Anyway, when the service techs pulled it out and I took a look at the vents, everything seemed to be fairly clean. When I asked them about cleaning or servicing they said that there was no need or procedure.

I take good care of all my AV components but this 52631 is pretty dusty, should I use canned air? What parts should I clean semiyearly or every few years?

Thanks
post #2524 of 2650
I wish I had a dollar for every 'one poster'. I would retire.

nickaz2007; Why haven't you looked at the sticky post at the top of the page first? Your questions would of been answered. There was no reason to remove the screen in the 1st place and never use 'canned air'.
post #2525 of 2650
I see the 8 tabs but I don't see the stickies........... You mentioned that there are 3, where?

I figured the can air was a bad idea.

And sorry for the one posting but I've been a member on this site for years maybe not as active a member but AVS and its members, maybe even you, have always help me in the past when I had a question that I could not find an answer to.
post #2526 of 2650
You are looking to far north.
Under "Sticky threads".
post #2527 of 2650
I have a 4.75 y/o 65732 ( 3 mos. ext. warranty remain). Last week my daughter told me the tv shut off and a red light came on, she turned it off and on, no more problem. Tonight when I got home my daughter said the tv turned off repeatedly and the red light would come after each restart. I turned on the set, after about two minutes the picture went off, solid red lamp light illumunated. Restarted set and watched tv for three hours uninterrupted. FWIW, I'm currently on my fourth lamp which is about a year old. I assume this is not a bad lamp since the other failures were immediate and complete. So, what gives?
post #2528 of 2650
A solid red "status" indicator is a "circuit failure". You need to run a error code check;
LL
LL
post #2529 of 2650
It is not the "status" indicator, but the "lamp" light that is illuminating. It acts exactly as if the lamp has failed, except that I can turn the unit back on and it operates normally with no indicator illuminated. Then at some point the indicator again illuminates and the lamp shuts off.
post #2530 of 2650
Then it's probably the ballast.
post #2531 of 2650
Thanks for the help.
post #2532 of 2650
Hello:

I have a WD-65732 that I bought in July of 2007. for about that last 6 months or so when ever I lose power even for a few seconds the TV reverts to antenna 1, resets the Audio to TV vs AV for sound source, Brings up the TV guide which has no data, and loses all the programed OTA channels. After I get it back to to normal by putting all the settings back to where they were the TV will prompt me the next time I turn it on that the TV Guide is not setup (even thought the settings are filled in and checked correctly). Is ther some kind of battery back up for the setting that I can replace to prevent this annoyance?

The TV Guide has also quit up dating channel information. Is there a thread some where that tell me how to fix that? (my firmware is v33+008.00)

I am about to replace my lamp for the second time (it is starting to get dim). I can't tell how many hours it has been since the last change since the set has been resetting it's self (the test menu shows 00013). But my guess is that I have about 7 to 8000 hours on the set since I bought it.

I have never noticed any HALO issues but I thought I might want to clean things up on the inside when I change the lamp. Do you think I should do the Halo cleaning routine and are there any other things I should clean while I have the chance.

Thanks,

Scott Timan
post #2533 of 2650
Quote:
Is ther some kind of battery back up for the setting that I can replace to prevent this annoyance?

Not that I know of.
Quote:
The TV Guide has also quit up dating channel information. Is there a thread some where that tell me how to fix that? (my firmware is v33+008.00)

Yes, more than one. There is also a firmware upgrade for TVGOS from Mits available, but only as a service request that you may get direct from Mits. or from someone that has the firmware.
Quote:
I can't tell how many hours it has been since the last change since the set has been resetting it's self (the test menu shows 00013).

Are you referring to the internal service menu diagnostic screen in the lower left hand corner? If so, I have never heard of that counter getting reset, even with a full 'initialize'.

The TVGOS threads are here;
http://www.avsforum.com/avs-vb/showt...ighlight=tvgos
http://www.avsforum.com/avs-vb/showthread.php?t=537711

(yes the 2nd link is a recorder, but 90% of the thread talks about TVGOS since the recorder won't work w/o it.)
post #2534 of 2650
Videobruce:

Yes the counter in the lower left corner of the menu 2470 now reads 00058. The set is not under warrenty do you think Mits would send me the update if I ask?

Thanks for the links on the TVGO I will check them out.

What do you think if the cleaning idea?

Sincerely,

Scott
post #2535 of 2650
AFAIK, the SM "Initialize" is the most server step in resetting the set other than a doing a LE changeout where you have to copy the EPROM data to the new LE.

Something is really wrong if this has reset the system counter. It could be all kinds of things starting with the PS. I wouldn't even venture to guess where to start (beyond my pay grade ).

Anyway, you have to get this rectified before you even think about anything else.
post #2536 of 2650
I have a 65732 that has recently developed some strange behavior. Often when turning the TV on, I get a screen that is telling me that the TV GUIDE ON-Screen is not set up. It gives me the option to exit, or hit menu to set up.

I have entered the menu, and tried to enable TVGOS via OTA, or Cable, neither ever gets data. After turning TVGOS OFF, I still get this menu. In some cases, the set would also have change inputs over night.

Any ides on how to fix this?
post #2537 of 2650
I have a 65732, I was to the point of looking for a class action suit things were so bad.

False overheating issue (bad sensor)
Multiple bulb issues
color wheel issue
more bulb issues
bulb again
replaced bulb door (or something like that) and knock on wood no issues since.

I have had something like 9-10 service calls to my house. Fortunately had an HH Gregg 5 yr extended warranty (including bulbs)

HH Gregg even tried to make the warranty service (I think GE) replace the set.

I love it other than all the craziness - and right now it appears to be A-OK (knocking on wood again LOL)
post #2538 of 2650
videoguy60467; One way to stop that is to turn off "Fast Power On" mode. That also saves you wasted electricity, but increases 'boot time' by 50 seconds to one minute.

If the 'Guide' is disabled, you shouldn't get the message. It's a nice feature except for the 'power hog' state the set is in 24/7 (25 watts additional consumption).
Do you know what station your host channel is? Have you been to your local reception thread?
post #2539 of 2650
bronccat;
1. It's a 'lamp' not a 'bulb',
2. The sensor is covered under Mits' warranty,
3. How many hours on the set?,
4. How often is it used, how many power on cycles does it see a day?,
5. How about air flow? Ambient temperature around the set?
6. What was the issue with the color wheel?

'Lamp' hours have exceeded 10k for forum members.
post #2540 of 2650
Quote:
Originally Posted by videobruce View Post

videoguy60467; One way to stop that is to turn off "Fast Power On" mode. That also saves you wasted electricity, but increases 'boot time' by 50 seconds to one minute.

If the 'Guide' is disabled, you shouldn't get the message. It's a nice feature except for the 'power hog' state the set is in 24/7 (25 watts additional consumption).
Do you know what station your host channel is? Have you been to your local reception thread?


The guide is definitely off, but I am still getting the message. It's easy enough to clear it with EXIT, but my wife or kids may not understand how using the Comcast remote.

I will try disabling the quick start, and see if that solve it. Perhaps just doing that for a cycle of two might clear the issue.

Thanks for the reply.
post #2541 of 2650
Quote:
Originally Posted by videobruce View Post

bronccat;
1. It's a 'lamp' not a 'bulb',
2. The sensor is covered under Mits' warranty,
3. How many hours on the set?,
4. How often is it used, how many power on cycles does it see a day?,
5. How about air flow? Ambient temperature around the set?
6. What was the issue with the color wheel?

'Lamp' hours have exceeded 10k for forum members.

My first lamp failed at a little under 3K hours. I have noticed that the new lamp has a much larger screen area for improved airflow. I'd guess that this could dramatically improve lamp life.
post #2542 of 2650
Thread Starter 
Quote:
Originally Posted by videoguy60467 View Post

My first lamp failed at a little under 3K hours. I have noticed that the new lamp has a much larger screen area for improved airflow. I'd guess that this could dramatically improve lamp life.

Yes it will. Even removing that larger screen altogether could still yield improvement. Like you my first couple of lamps made it just beyond 3k hours before the mantesl literally melted and the brass screws holding the lamp in the housing became galded from the extreme heat. Since learning this trick and fully removing the lint filter altogether we're now past 6k hours. It's literally to the point I'm about to replace the lamp just because it's gradually become so much dimmer with advanced age. Indeed, ventilation seems to be the secret.
post #2543 of 2650
Quote:
Originally Posted by videobruce View Post
bronccat;
1. It's a 'lamp' not a 'bulb',
So whats the difference between a lamp and a bulb anyway? The fact that its inside a enclosure? perhaps the designation bulb should only be used when defining a lamp with a bulbous shape

Aether way, do you really need to correct somebody an such a small detail. we all know exactly what he is referring to.
post #2544 of 2650
Educated, correct term vs uneducated, incorrect term. Something like using the term "LED TV" where the correct term is LED driven LCD TV.

"Bulbs" are something you screw into light bulb sockets as in table, wall & ceiling fixtures that anyone buys at a hardware, dollar or drug store.
post #2545 of 2650
I have a 65732 which is about 4 years old.

TV abruptly shut off a week and a half ago and wouldn't turn back on. I assumed bulb since it's about 2 years old, which is how long the original one lasted. I ordered one up and installed it to have the tv still not come on.

Poked around a bit and did some troubleshooting as indicated in the service manual. New bulb and New ballast in the tv now and I have a red lamp light with a code 66.

Any suggestion?
post #2546 of 2650
Code 66 is lamp didn't fire up at pwr. on.
Try re-seating the lamp assembly and check cables to and from the ballast.

Look here;
http://www.avsforum.com/avs-vb/showt...1#post20807861
post #2547 of 2650
Quote:
Originally Posted by videobruce View Post

Code 66 is lamp didn't fire up at pwr. on.
Try re-seating the lamp assembly and check cables to and from the ballast.

Look here;
http://www.avsforum.com/avs-vb/showt...1#post20807861

I can see the lamp try to turn on with the back off. It just never fully powers up. Have reseated the lamp several times as well as checked cables. Guess it's time to junk this thing to avoid more hassle.
post #2548 of 2650
Sounds as the lamp is bad, return & exchange it.

You have the receipt & the packaging don't you? The seller does have a guarantee don't they??
post #2549 of 2650
Quote:
Originally Posted by videobruce View Post

Sounds as the lamp is bad, return & exchange it.

You have the receipt & the packaging don't you? The seller does have a guarantee don't they??

Both lamps do exactly the same thing, which is why I thought it was less likely to be the lamp.
post #2550 of 2650
Then it's probably the ballast.
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