Question about Zenith B50M88W 50" Rear Projection Television

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You might give MCM Electronics a call 1-800-543-4330

Posted on Jan 13, 2009


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Tv turns on have picture then about 1-2 minutes later turns green then shuts off

very common issue indicating the Green CRT has shorted and will need replacement. You can get the Replacement Green CRT for your model from they are listed under the Projection Tube CRT catagory

Feb 18, 2012 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Goes to blue screen then shuts off

Thats almost always caused by the Blue CRT needing replacement. You can get the replacement Blue CRT from listed under the Projection CRT category

Dec 03, 2011 | Sony KP-51WS520 51" Rear Projection...

1 Answer

Tv will not power up, I removed front panel and there are three bulbs, 1 will attempt to light up and flicker out when power button is pushed. The other two do not light up. The part number is 040705...

Sounds like the CRT has an issue which is shutting the other ones down. Try removing the CRT drive board from that one CRT and then try to power up the set. It should stay running with the board remoded and just hanging. If it does you will know that CRT needs replacement. You can get a replacement CRT from

Jun 24, 2011 | RCA HD52W59 HDTV Projection Television

1 Answer

Replacement bulbs

Probably through Mitsubishi only.
Are you sure you want to pay the cost of the CRT'S?
These are the Part Numbers for each of them.
RED CRT --------251C217040
GREEN CRT----251C217050
BLUE CRT-------251C217060
Mitsubishi's Parts Deparment 1800-553-7278

Nov 16, 2009 | Mitsubishi WS-65411 65" Rear Projection...

1 Answer

Need replacement lamp for an old projection tv, and cant find one

First, without the exact model number, the replacement part can not be found. Second, if this is a CRT based projection set, then the cost of the replacement CRT will likely be in the $300+ range (if it is still available). Please make sure that all other possibilities have been exhausted as to the cause of the failure before attempting to replace the CRT. It is rare for the CRT to be the problem. It can happen, but is not common. Please update this with the model number and I will investigate further. Thanks, Dan

Jun 15, 2009 | NEC Televison & Video

1 Answer

Looking for lights....

You can find replacement parts for this model from the following Sony OEM parts distributor. Here's the links to order the original Sony blue CRT, green CRT, and red CRT (the 3 "light bulbs") for this model from that major parts distributor if needed:
Sony KPR-53CX35 Replacement Part Blue CRT Bulb / Lamp

Sony KPR-53CX35 Replacement Part Green CRT Bulb / Lamp

Sony KPR-53CX35 Replacement Part Red CRT Bulb / Lamp

Apr 01, 2009 | Televison & Video

2 Answers

Dear sir or madam, I've an industrial display unit(TOSHIBA) which it's CRT is out of order and should be replaced by the new one.the matter is that I couldn't find the particular crt which I'm looking for...

Why would you be looking for a new CRT? Replacement costs dictate a new diplay unit unless the failed CRT is part of a much larger display unit. Call Toshiba. They would know if the CRT is even available.

Nov 29, 2008 | Toshiba 32A33 32" TV

1 Answer

Blue lens works, but has a weak projection compared to the green and red lens

The most common problem I have seen with these Samsung projo units is the blue CRT (picture tube) failing. They usually form algae on the face of the CRT which means replacement of the CRT or rebuilding it by a CRT rebuilding company. I wouldn't suggest the novice to pull the CRT out because if the wrong mouting screws are pulled you will spill out the cooling fluid within the face of the CRT and that will cause more problems.

Apr 18, 2007 | Samsung PCJ522R 52" Rear Projection...

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