Question about Mitsubishi WD-73827 73" HDTV DLP TV

1 Answer

Keep blowing the main fuse.

Hi, I have this tv for like 4 years. and a few days back when i power on the tv, I noticed that the pedestal room fan lose power. 2 days later when watching a movie sound like a small explosion and the tv shutdown. the next day i opened the back of the tv and found the principal fuse blown, i replaced and when tried to powered on again it blew the fuse again. What could be the problem, the ballast, the light bulb or the power supply? any help will be appreciated.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Mitsubishi Master
  • 76,171 Answers

To which circuit section did you replaced the fuse? Main power retulator? Just understand, the fuses are used to protect the circuit and TV from any short circuit or over voltage. Without any one of these, no fuse will blow up. If it was due to over voltage, the set should work after a fuse replacement. But here, the fuse blow up again, means, there is some thing shorted component/s. Check which component is shorted, and replace it, before replacing an other fuse. One more thing to say is, never insert a fuse other than specified. The voltage and ampere specification to fuse, will be marked at the circuit board, very near to the fuse clamp. Insert a fuse of same rating only. Using other fuse, rated higher ampere rating, might make things worse.

Posted on May 28, 2013

Testimonial: "hi, i unplug all connections from the power board and replaced the fuse and started powering the tv one connection at the time and when i connected the connector that goes to the ballast the fuse blew. without the ballast the the apparently powers on, all fan start to spin and have audio sound and in the front panel the indication blinks green. I think that the problem is the ballast. Do you think that this problem with the ballast could blew the bulb too?. thank and hope to hear from you soon."

Ad

6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Willie Howell

  • 1030 Answers

SOURCE: TV suddenly shuts off and lamp light comes on, but lamp is OK

did you reset the lamp timer? just a guess

Posted on Feb 08, 2008

MICHAEL MULLINS

  • 927 Answers

SOURCE: Red light came on tv , replaced lamp and still no picture

Good Day;

Bad news this TV has multi problems, check these:

1. Red status LED, self-diagnosis error 44, check for open F9A06 on the Power PCB part # 283P128050 on the Power PCB 2. Red lamp LED, self diagnosis error 34. Check for 5-volts DC at J-9 connector pin 1 and 2 on the Engine Driver PCB if missing replace the Power PCB part # 930B921002 3. LED stops blinking after 70 seconds of plug in but will not power on. This model is equipped with a keyboard lock feature, this can be mistaken as a no power condition. To unlock the keyboard press and hold the "menu" button on the front panel for 10 seconds 4. LED stops blinking after 70 seconds of plug in but will not power on. Check for 3.2 volts DC at connector LE pin 3 and 4 on the Control PCB, if low suspect problems with the switches/buttons on the Control PCB part # 935D776001 5. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked and key inputs at connector LE pin 3 and 4 check good. Suspect the E2P PCB part # 934C121001 6. (LED does not stop blinking after plug in) Disconnect the USB connector from the card reader to the front from the Chassis, if the LED stops blinking after 70 seconds replace the Card Reader part # 299P271010. 7. (LED does not stop blinking after plug in) Disconnecting the USB connector from the Card Reader did not help. Remove connector FC from the FMT PCB and plug the unit in, if the LED stops blinking after 70 seconds with FC removed suspect a problem on the FMT PCB (part # 930B924002), if the LED keeps blinking with connector FC removed suspect a problem on the DM PCB (part # 934C116002). 8. (LED does not stop blinking after plug in) On the DM PCB (part # 934C116002) check C81A2, C81A3, C81B3 and C81B4 (1000 UFD, 16V, 105C), if any are bad, replace all of them with part # 181P734030 (680 uFD, 16V, 105C). See Service Tip VS-78A 9. (LED does not stop blinking after plug in) On the FMT PCB (part # 930B924002) check C8F19, C8F21, C8F22, and C8F27 (16V 1000 UFD 105C), if any are bad, replace all of them with part # 181P734030 (680 uFD, 16V, 105C). Good Luck, big IRISH.
Thank You! Was the solution helpful? if(typeof LIB_LOADED == 'undefined'){document.write(''); }

Posted on Sep 28, 2008

Anonymous

  • 41 Answers

SOURCE: Mitsubishi 52725 52525 Red Light turns on

the problem might be the thermal sensor on the light engine. with all the work you have done on this i would suggest taking a look at the thermal sensor. these are known to go out.

Posted on Apr 19, 2009

Slinteriors

Sonny Berry

  • 8617 Answers

SOURCE: New bulb/TV still shuts down

Its far more likely the result of the power pwb capacitors that have failed. As the 34 code will appear if the capacitors fail on the Power PWB. You can get the V26 DLP Power repair kit at the following link.with free instructions
http://servicemanuals.vstore.ca/product_info.php/pName/mitsubishi-v26-dlp-power-pwb-repair-kit/cName/repair-kits

Posted on Apr 30, 2009

freetek

Steve Allison

  • 5569 Answers

SOURCE: No power on 2002 Mitsubishi VS-60609

You've mad the right decison; fuses can fail due to metal fatigue as they flex a little each time current flows through them of ceases but a 2nd fuse is unlikely to fail instantly. This indicates a true problem.
If you found the fuse, it was probably located on the main power supply board and this item has likely failed.
Look for an assembly number on that board and call a Mitsu service company and inquire about repair or replacement cost. Either one can range from ~$75 to $150.
It would be interesting to know if the fuse blew as soon as the unit was plugged back in or only when you tried to turn it on with the remote or power button on the set.
If it blew only by plugging it in, that power board is the culprit. If it blew as you tried to turn it on, it could be a failed 2nd power supply for the CRTs that is often located separate from the main supply where the fuse was.
About any E-tech could ferret out the which of the two is at fault so you might consider having a pro do the repair but if you know the failure sequence you might choose to gamble on making the decision yourself.
Good luck-

Posted on Jun 19, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why is my GE Advantium SCA2001 blowing the main fuse?


Yeah pal, you've not gone deep enough yet. You'll find a power wire bare inside the unit, pull it apart and tape that wire up to stop it from grounding out and blowing the fuse.

Aug 31, 2014 | GE Microwave Ovens

1 Answer

Panasonic TH37PX80B tv won t turn on


Probable power supply failure.

Apr 02, 2014 | Televison & Video

2 Answers

2010 Mazda 6, room fuse. A few weeks ago, my radio, interior dome lights and power locks all stopped working at the same time. Come to find out the fuse labeled "room" was blown. Replaced it and didn't...


I just had the same trouble in a 02 mazda millennia. found the SHORT.it was in the wiring of the drivers sun visor lights. no kidding, too simple. I hope yours is as easy to fix,,

Aug 22, 2013 | Mazda Cars & Trucks

1 Answer

Purchased a new stand fan but after few days started giving trouble by not running after stop. Few days used to open the covers fix up the blades and then restart. now it is not running at all. what to do?


Hi,
The motor has gone bad... the best thing to do is to take it back and get another one... often if a motor is bad it will fail very quickly like that...

Heatman101

Aug 28, 2010 | Honeywell HFS641P Stand (Pedestal) Fan

2 Answers

Samsung LN40A530P1F LCD TV keeps blowing main power fuse when i turn set on it blows right away i have replaced fuse many times. Also when back was off i noticed a arcing as fuse blows at a component just...


http://www.samsung.com/us/support/detail/supportPrdDetail.do?menu=SP01&prd_ia_cd=&prd_mdl_cd=&prd_mdl_name=LN40A530P1F
If a fuse blows like that there is a major problem, inside. I suspect that what your are seeing is the inrush thermistor, and they exhibit this under great load. I would explect that this fault maybe in the actual PSU. Due to the lack of service manual support, i would get a quote for repair from an authorised service center.

Jun 22, 2010 | Samsung LN40A530 40 in. LCD TV

1 Answer

Sony KV-36FS120 No Pic/No Sound 4 blinks


You need to have the flyback on the main board replaced (a very comen problem)
This should fix ya!

Dec 12, 2008 | Sony FD Trinitron WEGA KV-36HS420 36" TV

1 Answer

Sony Wega 50


Usually this is a classic lamp problem, but it could also relate to a defective lamp ballast (power supply).

Now if you are replacing lamps frequently, it's likely the lamp isn't getting enough airflow to keep it cool. If you don't get the airflow issue solved it will take out the thermal safety fuse near the lamp and your set won't come on and the power light will blink red 6 times repeating itself until you unplug it. Some lamp fans are so deeply nested it takes a trained tech to get them out. Dusty environments are bad for TV's with fans in them, especially projection types.

Nov 09, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

3 Answers

SONY XBR1 SXRD


I get the same problem (4 flashing red lights).
I done some internet troubleshooting and narrowed it down to an overheated power circuit card/fan issue.

It turns out one of the fans is failing and will not rotate at the appropriate speed to cool the power circuit card, this will kick out the 4 flashing lights from the diagnostics.

In lieu of replacing the fans I have a temporary solution:
For my TV (kdsr50xbr1) the fan in question is located on the far left side (facing the rear). You will see a grill on the back of the TV showing you where the fan is located.

First, get a can of compressed air and blow it into every fan. This will clear away a lot of dust and help the fans move easier.
There is one blower type fan located inside the TV, remove the back panel and look for a tall yellow circuit card just to the left off the center of the TV. Behind that card is a blower (stands upright looks like a tube). Blow air into that blower, you will see a lot of dust come through the duct and out where the large fan in the center is located.
Put everything back together. and provided the fans aren't too far gone the TV should be working again.

Also, if the issue comes back, try this:
When you turn on the TV, shoot a short squirt of compressed air into the fan (Far left facing the rear). This will give it a kick start and bring it up to speed.

It is important to note that the compressed air cans do contain a liquid and as such are not compatible with electronics when they are plugged in. Try your hardest to keep the can upright and not allow the liquid to squirt out where it shouldn't. If it does it will evaporate in a few seconds.

Ok, relatively long post, to summarize:

1. Open back of TV, blow compressed air into every fan to clean them.
2. Blow air into whichever fan is causing problem if it happens again.
3. Keep the can upright if the TV is still plugged in. Don't sue me if you fry your TV.
4. If this doesn't work (has for me) replace fans

Mar 18, 2008 | Sony KDSR50XBR1 50" Projection HDTV

3 Answers

Sony SXRD KDSR50XBR1


I have the answer for the fan issue on the KDSR50XBR1!!!!!

Ok, I think I have the answer for the BIG FAN failure. I recently did a similar fix on the spindle of an xbox 360 and it is identicle. Ok, this is an EXTREMELY EASY FIX...

Open the back of the tv, locate the large fan (on the lower left on the back of the set.) unscrew the screen and remove the fan.

Once the fan is removed, you will see the side with the model number and the other side is totally open.

On the open side, pull...

The fan will come off, into your hand, it is only held by magnets...

You will notice a spindle on the fan and the other side has the magnets and the hole where the spindle came from (this is the fan motor).

Clean both the spindle and the hole (motor) with a q-tip. The hole is smaller than the q-tip, but do the best you can to remove the old lubricant.

Get a bit of WD40 and lubricate the spindle and spray a touch in the hole.

Put them together, reconnect your fan, test it on startup and thank me...lol...

HOPE THIS HELPS!!!! IT WORKS, TRUST ME...

What do you think? Spread the word, lets save some folks from spending needlessly...

Jan 17, 2008 | Sony KDSR50XBR1 50" Projection HDTV

Not finding what you are looking for?
Mitsubishi WD-73827 73" HDTV DLP TV Logo

193 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Televison & Video Experts

matt martin
matt martin

Level 3 Expert

1257 Answers

The Knight
The Knight

Level 3 Expert

76171 Answers

Ekse

Level 3 Expert

13434 Answers

Are you a Mitsubishi Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...