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grayfox

Hello, I definitely think this big HDTV is worth fixing, this sound like a colorwheel issue. you you get any squeaky grinding or screeching sounds? If not then is the color the only distortion? If you turn all your colors down to ZERO and leave the picture in black and white, does everything work pe...

grayfox

No I am affraid you need the number on the inside on the actual green or brown part of the board... if you posted a picture of the board that would be fantastic!

grayfox

Hello! to answer your questions; -this sounds like a textbook colorwheel issue, except for the fact that the TV fails to respond to commands! :( -Yes most likely the input boards and digital video are fine because of the clear image. 8-) -The colorwheel can distort the picture in terms of coloration...

grayfox

Hello,
wow, this is a tough one! have you moved your tv around much before this happened? if so the light engine or tunnel could have shifted...
Do you have any pictures of the screen with an image to see how it affects it???

grayfox

Hello,
wow this TV worked even after 2 blow outs?!! :shock:
nice! ;)
And yes both can be giving you the malfunction, I would recommend replacing the power supply first since it is the one that receives the power surge (and it is a less expensive part than the motherboard DMD).

grayfox

Hello,
first rule of thumb is how old the lamp is? second it can be the actual Ballast (since it is not igniting the lamp the TV gives you the lamp indicator light)...
hope this helps

grayfox

Hello,
This can be a dmd board malfunction :( you do not get any bit of image at all?

grayfox

Hello! 90% of the time this is a simple lamp problem, the lamp! And the buzzing sound can be your ballast trying to ignite a shattered lamp. *Do not keep trying to start it up!!! In order to properly troubleshoot You need a working lamp :( other than that theres 2 consumable parts inside your tv tha...

grayfox

will, do, post if you need any help :P
and yeah manufacturers are bad at pricing :cry: , but some techs are the devil!!! :twisted:
its like with cars, if you can do it yourself you can save 90% lol :D
good luck and have fun! :geek:

grayfox

hhmm, yeah if you open up your tv and in the light tunnel between the lamp and the projector there is a housing with the colorwheel, if it skeaks wehn turned or is physically damaged it is a sure way of knowing... note* it does not have to show physical damage to be defective, the only sure fire way...

grayfox

I am willing to bet I can find the part online for +-$100 but I also need a part number off the board, and yes this is absolutely something you can change, nothing but screws and plugs!
the part number on the board should be an alphanumeric code i.e. 915P020010...

Hope I can help!

grayfox

well as a tech, rule of thumb is that during a DLPs life span those last two consumable parts have to be changed at least once during the lifespan of the TV.
(do some research online and you will find this to be the case) in the long run i think this will save you future headaches... :mrgreen:

grayfox

Go Hawks! the most logical step given the symptoms you describe, I am speculating you are not getting any image distortion, would be to replace the ballast. If you read some of these Samsung forums it is the #2 problem aside from ballast and will usually give you the details you describe... hope thi...

grayfox

OCUH! ACL been there (downhill mtb)! wish you a speedy recovery :)

keep us posted!

grayfox

if there is no color distortion I would look into any strange noises coming form your TV. Like a buzzing electric click which is one of the indicators a ballast might be weak.
note* a defective ballast does not need to make a sound in order for it to need replacement!
Hope this helps

grayfox

this might just be the input board, do you know if it has a main and auxiliary, like inputs on the back and the on one far side? if so I would start by replacing those both, it is relatively inexpensive...

grayfox

Yup you are correct, as for the fan I am sure you can find one there are only a couple of fan manufacturers. If you wanted to purchase the original, they sell them by the set.
example!
http://www.discount-merchant.com

grayfox

welcome darock!
oh if you're starting to hear the screeching grinding of a colorwheel it is about to give out on you and that's why you are getting the blue error code in the front :cry: ... just make sure it is not a fan first :lol:

grayfox

welcome darock!
oh if you're starting to hear the screeching grinding of a colorwheel it is about to give out on you and that's why you are getting the blue error code in the front :cry: ... just make sure it is not a fan first :lol:

grayfox

Hello! hhmm, try checking if all fans are spinning when your tv is on, or this might just be a malfunctioning thermostat they sell all these parts online see below... hope this helps! http://www.discount-merchant.com/SAMSUNG-COOLING-FAN-SET-p/1192613.htm http://www.discount-merchant.com/SAMSUNG-AA41...

grayfox

Hello, I think the smartest thing to do besides calling RCA, would be to run a Google search! 8-) Be aware though! Philips lamps are rarely defective! and there is a clear explanation why your old lamp works and the new one does not! ;) These lamps work via a mercury vapor thats inside the filament ...

grayfox

welcome! if you have any questions you know where to go!

grayfox

what input from the bose system are you using to hook up the video?
~Good thing it still responds, it may not be the DMD..

grayfox

ok once you do test it against a completely analog input (say a coaxial). three possible outcomes, The Digital looks bad, the Analog does not: This is most likely a problem with your input board or DMD... The Analog looks bad , the Digital does not: This is almost certain a problem with the Digital ...

grayfox

Hello, since you do not mention any discoloration or color distortion, and you are still running on an original lamp for this long. I would try the lamp first :mrgreen: , but do not keep trying to ignite the lamp this way since the arching buzz sound is from the ballast struggling to ignite a bad la...

grayfox

I dont know! if nothing can be placed to hold it there, I would suggest ordering the cable but it comes in a set :o see below....
http://www.discount-merchant.com/RCA-Ca ... 171477.htm

grayfox

Hello,
I think this will most likely be the DMD board, the only way to rule this our would be to test analog versus digital inputs...
you mention you cannot test with HDMI, how about a DVI?

grayfox

Hello,
not always but it is the most common procedure your TV would take when a lamp goes, it would at one point detect the lamp is bad and shut down the rest of the components. I would replace the lamp.
hope this helps!

grayfox

Hello,
right off the bat if this is the first time this TV has given you any problems and you purchased it new, then I would put my money on a new lamp. If you have replaced the lamp before and the one you are using is under one year old, I would start by changing the ballast.
hope this helps!

grayfox

Hello,
Are DVD and Cable inputs both analog signals? (i.e. componenet, coaxial)
I think either way you might have a problem with you DMD board.
when it freezes does it not receive commands?

grayfox

True the pins are tiny, but to be honest unless you know the amp/volt/watt you are looking for, it can be a waste of time since it can either send the wrong amount or not send any at all.... :(

grayfox

hmm, I am not very familiar with RCAs as I am with Samsungs, but if you follow the general instructions on the Guides section of fixyourdlp.com for "colorwheel" you should be fine, nothing to cut or soder just a bunch of screws and some plugs ;) if you run into any problems feel free to po...

grayfox

Hello darock, Here is what I believe happened :geek: , your ballast is weak as it is a consumable part in your tv, that being mentioned: -once the ballast went weak your old lamp shut down as did your TV. :( -your TV gave you 3 blinking lights NOT just the lamp indicator light, indicating a board is...

grayfox

Hello! It sounds like you replaced every consumable part in your TV already! :shock: given the symptoms you describe, the lack of response to commands, spots on the screen and the random operating times, I'm going to have to suggest it is time to change the DMD (motherboard) on your TV :| if you do ...

grayfox

Hello!
you got a pretty good life out of the stock lamp :D
do you have any digital inputs on your TV? try an HDMI OR DVI input to see if you get those lines...
this sounds like it is a Digital Video Board problem!

grayfox

What are you activating? do you own a sharp tv?

grayfox

:D :mrgreen: yay! yes hopefully this thread will help someone who googles the same problem! enjoy your HDTV! ;)

grayfox

thank you ghostpix! Yes some DLPs are hard to diagnose :cry: , and parting with it is getting more common, the reason I post to help is because I have a 60" Samsung and it cost me well over $2000 back in 2004. Since then Ive changed the lamp twice and the ballast once (more or less the same pri...

grayfox

:?: ok then wow, i would suggest letting it reset itself, by leaving it unplugged for 48 hrs and then plugging it in.........

grayfox

hmm, no you are correct those green lights should not be flashing on their own, so if you press buttons on the set or remote, nothing changes, the lights keep on blinking?

grayfox

Hello, This sounds like a textbook lamp issue if you have NEVER changed the lamp on this set! So I as a tech would start with that, relatively inexpensive for your plans. ;) I would like to point out there should be no soldering/cutting required in order to replace any board or part in your TV, its ...

grayfox

welcome :mrgreen:
and yes try to use those since they are static free etc (safe) ;)

grayfox

lol :D
I think my post got deleted because of links let me try again :x , but I was mentioning maybe a Fan or the Thermostat malfunctioning, this can get your TV to shut down or not fire up! :shock:
take a look below! ;)

http://www.discount-merchant.com/SAMSUN ... 208302.htm

grayfox

do some input/setting juggling around and if nothing works then the input board might be malfunctioning :(

GOOD LUCK! :)

grayfox

morning, If you are certain it is the fans making the noise; either one can be malfunctioning and tripping the thermostat or the thermostat itself can be malfunctioning.. note* if you get any discoloration or distortion of colors, the humming/spinning sound might come from the colorwheel and would e...

grayfox

good morning! you did some research! well played, and you are very welcome! I love getting big screen HDTVs up and running again :mrgreen: Ok so larger or diferent model TVs will have separate input boards (i just wanted to clarify the difference on my first response) usually the DV board has no inp...

grayfox

Wow, this will be hard to diagnose over a forum :| ... If you have had your lamp for over a year I suggest you replace it and I still would not dismiss the ballast! every projection TV (you can google this ;) ) has to have the ballast replaced at least once during its life time, to be honest I have ...

grayfox

oh do not worry its always a pleasure to help! :mrgreen: I <3 my 60" Samsung!!! Well I think the reason there are more posts for Samsung is because they were a top seller! As a marketing major I figure: the more TVs in the field the larger the margin of error ;) But I digress, your TV uses LED ...

grayfox

YOU'RE WELCOME! :mrgreen:
well there's 2 parts to look at:
- one is the input board which receives all analog/digital inputs,
- and the digital video board which converts all analog signals into digital for projection on your screen!
...so if the HDMI is ALSO affected, I vote change the Input Board!

grayfox

you're welcome, that's what I signed up for :mrgreen: you threw me for a loop with the default settings..., and yes after you go HDMI one must never go back to standard!!!. There might be a possibility (depending on your HDMI source) that the audio is not being fed or received if all other inputs ar...

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