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Projection TV sets have three tubes - red - blue - green and they don't fail often...they are located inside the tv
DLP TV sets use a single bulb and a clot wheel to make the three colors display...DLP bulbs do fail about every two years and will need o be replaced. Replacements can be found at www.TvRepairKits.com and its located behind a small door on the rear of the tv.
The vertical sweep output section of your tV has the fault. Replace all the electrolytic capacitors [5 or 6 of them there] at one time. Height to the picture is more than normal is the fault now.
Hi
To buy a new power switching regulator board, you needn't have the part number of it. It can be purchased from Toshiba Authorised Service center by informing the exact model number of your Toshiba TV. They will give you the orginal replacement board. The identification number will be printed on the circut board itsef. You can also buy it from "Alibaba" or "Ebay" by quating that PCB number. Get into their web sites and search for your board. They will send it to you by E-payment. OK.
Lamps are for DLP TVs, Tubes are in Projection TVs Red/Green/Blue.
Mats has Lamps for $89.00 1-800-628-1118
Tubes cost $450.00 and up Encompass Parts Distribution has service Manual/Parts for this Model
1-800-638-3328
What seems to be the Problem with your TV and what makes you think One of the Tubes is Bad?
Most common problem with this TV is the STK ICs STK392-110. Mats has them.
I would be looking for a different shop and send them the bill.
If all fails go on ebay and get a new bulb and find someone who can replace it.
I wouldn't suggest you do it yourself because of the voltage these televisions put out.
Hello Hinden the problem is more than likely the vertical hold deflection IC that is faulty and has to be replaced, if you were to get a service tech out there to change it out this should be any from 60 to 100 dollars but it depends on the tech or repair shop thank you hope this helps.
This set does have a lamp, it utilizes 3 picture tubes (red, green, blue) The tubes are not available as new any longer. It is recommended to replace all 3 after the reaches 5yrs of age because a new tube will over drive the others in brightness but it is possible to only replace the defective one. You can try Tritronics at 800-638-3328 for rebuilds.
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