Question about Toshiba 62HM15 62" Television

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Toshiba 62hm15a thank you. I was also told the green snow could be caused by a T-chip, magnetic field close by, color wheel, or light engine. If I reset the tv, it is fine for a few minutes and the green snow returns. It did that once a month ago and went away. Now it WON"T go away. I only paid $1100 2 years or so ago for it and would opt to buy a new tv vs. putting lots of $$ into this unit. Friends tell me if it's the T-chip it is inexpensive. Any thoughts???

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Honestly i dont have any idea about the t-chip but if this chip or repairing your tv cost you a lot then buy a new one. its better to have new than old ones. hope that helps!


CHARCOIS

Posted on Sep 14, 2008

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Loud humming coming fromthr rear of Toshiba DLP 46HMX85. Humming is not connected to the volume control and sounds like a power supply transformer or a fan.Changes pitch momentarily when certian functions...


YOU are describing a color wheel, in this model it may or may not be available as a part; some of these sets it is only sold with the light engine.

See attached photo of a typical color wheel.

In DLP type sets the wheel turns at up to 12,000 rpm and if bearings in the tiny motor fail it sounds like a fan or even a grinding sound.

Let me know if you have questions.

SD TECH

sd_tech_33.jpg

Jan 11, 2011 | Toshiba 52HM95 52" HDTV Projection...

1 Answer

My projector tv wont turn on no more.... we got a new lamp but a guy told us it's the engine light... do you know how much it will costs to fixed it...'' thanks


hi
no panic first did you had a hight pitch noise
comming from the back like a fan would do?
if so the problem is not the light engin but the
color wheel that is defective 80$ and will not allow to power up the tv otherwise the light engine cost is close to 400$ in exchange

Sep 28, 2010 | Toshiba Projection Televisions

1 Answer

Need the Part number for the color wheel on my 62HM15A DLP Toshiba rear projection TV.


I think you will find Toshiba does not sell the color wheel seperate--only way to get one is to buy the optical or light engine.

Aug 06, 2009 | Projection Televisions

1 Answer

Toshiba 62hm15a- bright flashes


my toshiba 62HM15A has bright and dark flashes.

Sep 30, 2008 | Toshiba 62HM15 62" Television

1 Answer

Samsug rear projection tv, everything looks green


Dust accumulation in color wheel, light tunnel, chip area can cause green tint.

It is very delicate area, light tunnel and chip can be easily damaged. Remove light engine assembly and color wheel. Blow dust out. Re-assemble. If the gasket around the color wheel housing is not replaced in the right position, or the housing screws not tightened correctly dust will contaminate the color wheel/light tunnel area.

Call someone that has done it a few times. If near Calgary, call me.


easyab

Jul 14, 2008 | Samsung HCM4216W 42" Rear Projection...

1 Answer

Ic chips?? light engine??


the color wheel has gone out. good luck finding a new one. I just had to have my whole unit replaced because parts could not be located.

Jan 31, 2008 | LG 52SX4D 52" HDTV

1 Answer

Green Convergence problem


O.K. This is a CRT Projection TV see http://www.tacp.toshiba.com/televisions/product.asp?model=50H82 The Manual is available from http://www.tacp.toshiba.com/tacpassets-images/models/50H82/docs/50H82_om_e.pdf , and this describes the Manual Convergence process, I doubt this will help, but it's step #1. The problem you are describing sound to me like a deflection problem. The electron beam in the green projection 'tube' (a super bright CRT) is probably not being controlled correctly. This can be caused by several things, from least likely to most :) I do not recommend that someone untrained in electronics attempt to service a CRT based television due to the potential for extreme shock or electrocution. That caveat said, here are the possibilities. #1 Physical Trauma: The TV has been shifted moved or bumped hard, and one or more of the fixed permanent magnets used to help convergence has come loose, or the CRT projection tube was damaged. I don't think these TVs use convergence magnets anymore, but it's possible. The green CRT tube failing would be more likely if all four corners were affected, but I've seen a failing CRT affect a single corner/edge before. I believe that this model has projection tubes that are separate from the colored filters, so swapping the tubes around may be possible. I do not have a service manual for this set, and this may be a hazardous operation due to high voltages. #2 Stray magnetic field: Someone dropped a magnet into the TV, and it landed close enough to the green tube to effect it only, or perhaps some other piece of equipment is effecting JUST the Green CRT (clock radio, speaker, badly designed wall wart, etc.). Removing the offending magnetic field may cure the problem. Perhaps the offending magnetic field has been removed, but it's presence is still felt. Try using the degauss function built into the TV set (I can't find one in the manual, but it may be present). You may want to try using a degaussing coil, and see if that helps the problem. Just be careful not to get the coil too close to the base of the projector tubes. #3 Deflection drive electronics: A CRT works by using an electron beam to excite fluorescent compounds on the face of the CRT. To move the electron beam about, a process called deflection is employed. Magnetic coils (the choke) are used to steer the electron beam up, down, left or right. These coils are driven by transistors, and as one fails, you will get an image that starts collapsing in the affected section. On a standard CRT TV, that would mean the entire image is affected, but a CRT projection display uses separate red, green, and blue CRT projection tubes to build the image, so you have three times the deflection, three times the possible transistor failures, and in your case, the odd result of just the green part of the image displaying incorrectly. This problem will probably require a service call, and a electronic board swap, but the problem could be the choke (the magnetic coils) on the green CRT projection tube. Swapping the green tube for another tube could prove if it's the tube or if the deflection electronics that are going out. Again, my feeling is that this is a deflection issue requiring a board swap (I doubt anyone actually does component level repair anymore) Sorry, I don't have a better answer, peace. Paul.

Jan 13, 2007 | Toshiba 50H82 50" Rear Projection...

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