20 Most Recent Samsung HL72A650 Television Questions & Answers

You pretty much did yourself in here. Contact the maker and see if you can buy a wiring diagram that might show the wiring in the connector by color and position.

There are three things that are suspect in this situation. One is the ballast ( a large transformer that powers the light) The other is the light ENGINE. The light engine is about 400. Since you have described an issue with the colors flashing I would suspect the light engine. It could also be the power supply. None of these parts are cheap.

check the lamp if you havent changed it before that would be the easiest place to start. if the lamp is popped you will see glass pieces rolling around in the lamp.

Sir reset the lamp hour meter if you replace the lamp. Aim the samsung remote at the front panel where the infrared sensor is located, press the following keys on the remote in this order, Mute, 1,8,2,Power. Wait until the your tv screen lights up with the words "loading factory" on it. Press the "down" direction pad on the remote to select "option" from the list of choice that appears on the screen. Press the "enter" button on the remote, select "reset lamp timer " from the list of choices presented on the screen. Press the "enter" button on the remote. Turn off the TV with the remotes power button. Then wait at least five minutes before turning ON again your tv hope this helps good day and best regards.

Hello,

You need to check the output voltages of the power supply to see which one goes off. It may be due to short circuits some where, If otherwise, It's the problem of overheating in the power supply board of the TV.on the power supply board of the TV there are few capacitors and IC.any of this ic is got short or may be weak.so due to this when you start the TV the current passes from electric outlet to the power supply board of TV.but when the current passes from that weak/faulty part at that time current gets stopped or slow and the board overheats and TV shuts off. this is a common problem faced by many other users too.the possible option to solve this issue is to check the power supply board by a meter and continuity tester and replace the faulty component on the board which is short due to which power supply board is getting overheated.its bit technical job but yes its not at all a costly repair to do or get it done by the technician. for required parts it can be easily available from local electronic hardware shop. This will help in solving the problem...

You could be having a shorted rectifier or shorted chopper transistor . Either way it calls for the work of a experienced service engg:

Since your TV is a DLP, it could be the lamp or the color wheel. The flashing lights are a service code. Some TV manuals will describe the code and others require a service manual for the codes. Either manuals can be found online at a reasonable price. Here is a site I use.

http://www.servicemanuals.net/service.aspx?gclid=CPiusPKC0aYCFUVqKgodNzTUHA


My sharp DLP allows for the user to replace the lamp pretty easily so there is a chance you could be able to replace yours if that is the problem. The color wheel is a different story. That will probably require a service technician.

Good Luck

try to reset your tv setting to default

The 3 flashing lights is a 'self test' result that says the backlight bulb has gone. You can try turning it off for a few minutes then try again. However, Samsung have had problems with this set and the 3 blinking lights so if it is still in warantee get it replaced asap.

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remove the back cover u will see the fans one for the ballast and the other for the lamp

Sounds like a door switch is not making proper contact--or has been damaged. Check the lamp door switch and see if it is properly seated and the pin on the door is hitting the leaf of the switch.

You need a color wheel--common on these sets. Get a real phillips bulb and you should be set for awhile. The cheap generic bulbs are fine to get you through a few MONTHS....but NOT much longer. . An E22H-120/132 watt lamp is correct--and if you can replace just the bulb-(NOT hard at all to do) it will save you a LOT of money.

just from personal exp the easiest thing to do may fix or at least make it better. if u see puffed and leaky caps on power supply replace capacitors. if really dusty clean. both previously mentioned and both helped me. my tv was completely dead and replacing caps got it to power back up and work. it takes two trys to come on but works great so far. then i cleaned every nook and cranny with a small vacuum hose and different size/angle brushes that could be attached to hose. i only took out the psb board with caps and didnt touch anything in there that i could mess up. just cleaning helped enhance the colors. right now this is the best picture ive had on a tv and it was completly dead when i got it.

Check all your input cables & be sure they are snug on both ends, also check all your wiring connections inside the TV. you may have not gotten something back correctly or properly.