Question about Toshiba TDP-S20U Multimedia Projector

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Overheating Despite replacing the lamp, changing fan setting to high, bulb to standard, and cleaning with compressed air, our projector is repeatedly shutting down from overheating.  Any tips would be greatly appreciated.

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Re: overheating

Set the lamp to economy mode, make sure it is being used in a cool room with easy air flow thru the projector. If the problem persists, there are two fans inside and a thermistor that takes the temp reading, there is small adjustment POT on the board to increase the operating temp if needed.

Posted on Jan 22, 2008

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Sanyo PLV-Z2 flashing then off

1,the fans is good , is ok
there is not an overheating situation ,only 5-10 minutes,
2,seems that the lamp ballast is defective
you need a new lamp ballast, unit price is USD80
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500 hours is actually a lot. Replace the bulb.

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Every 15 min or so my tv shuts off and a over temp light starts falshing on the front of my tv and the bulb has just been changed in january.

Looks, like one of your temperature sensors has been damaged. May be due to severe overheating by old lamp. Or: the lamp could be improperly installed. Heats up, then connections to ballast fail, lamp quit working. Next possible cause: did you clean air filter? Vacuumed or blow fans with compressed air? Another possibility: If there was not a significant dust accumulation inside of lamp compartment, the ballast board itself can be at fault. In any case, unit might behave the way it does now. Also: have you reset the lamp timer? In projectors, they won't just give you annoying message via "on screen display". It might think, that you never replaced the lamp, just took it out and put back in. You must reset the lamp timer first. The procedure could be in owner's manual or come with OEM replacement lamp. Generics or "bare" lamps might lack that note. Panasonic wants to stay in a business!
Good luck with your project,

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Projector shuts down after a couple of minutes with lamp and temp lights flashin, is this a fan poblem and can i replace the fan?

This probably the fan is not cooling down the temperature of the high intensity bulb. Due to overheating the bulb will shutdown. Get a correct specification fan to replace the aging fan.

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This projector turns off while watching. Is this problem with lamp? do i need to replace the bulb?

Do check whether the fan is working properly. The shutdown might be due to overheating of the high intensity bulb. To replace the fan is much cheaper than the bulb. Check it out first before you replace the bulb.

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the projector thinks it is overheating. you may need to replace the temp sensor. it located near the lamp plug. also make sure the fans are both moving.

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how many times does it flash? could be lamp, fans or overheating. clean it out with canned air. if the lamp has bulges, black spots, or fogging, replace the lamp.

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clean out your projector. if there is a lot of dust and/or no air flow, the lamp will overheat and die. it needs to cool. use canned air and blow out any and all dust from inside the projector. make sure the fans work. also, don't buy lamps from "bob's lamps". get it from a reputable benq dealer.

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Please clean the filters for the air and the air circulation path for cooling the lamp.

This will definitely work, pls also check that the condition of lamp is okay or not as sometimes lamp goes with the ballast unit of the lamp and that damages the new lamp.


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