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Sharp DLP RPTV model 56dr650 , making a loud noise and has horizontal lines across screen, what is the problem?

My Shrap DLP rptv is making a loud sort of grinding sound like it needs some lubricant. I recently replace the lamp and clean the color wheel. Could it be due the fact that I didn't tighten the screws tight enough? if not, what could it be?

Question by handlessman    |  last reply


Rear view camera?

I'm trying to figure out the best route to make a wired rear view camera for a project I'm working on, it'll essentially work exactly like a rear view camera just like a car, just button activated and small and simple. Any ideas?

Question by Antilliteracy    |  last reply


rear axles for a tricycle

Does anyone have a source or know of a source for rear axles for a tricycle ? all of the ones I have found are 1 inch in diameter or better. I need one that will fit a standard tricycle or bicycle wheel.

Topic by Quadranut    |  last reply


Rear and front bikelights and road safety

A good bike rider learns from good and bad experiences during the initial rides. I pedal a bike on busy roads of my city. I realized that bikelights, especially the rear ones, are crucial for safety purpose. I got a backpack with solar panels and it has got a LED light as a rear bikelight, but it’s too dim, and the tail light sounds nothing like a good indicator for motorists. Either I would need suggestion on a bikelight safety kit or something else. I could do with my self-powered backpack. Is there is any DIY idea to replace it with a more bright option?

Topic by bikelightsuk    |  last reply


1999 Troybilt Pony-Starts up with difficulty. Runs about 5 minutes, then shuts off. Won't start until it cools down.

1999 Troybilt Pony Rear Tine-Starts up with difficulty. Runs about 5 minutes, then shuts off. Won't start until it cools down. Twice it shut off when it was tilling and it appeared that the force of the tilling caused it to shut down. IE, it struggled, sputtered and then shut off.      Also, I have difficulty engaging the tiller where sometimes it will jump like a rocket ship after going smoothly for a while. This tiller was abused by the previous owner. It was left outside a lot of times.

Question by Candlemandave    |  last reply


sony rear projector tv turns off by itself after being on for a minute. The sleep/timer indicator light on the front

Flashes. checked the sleep timer and it was off. set timer for 120 minutes and same problem. anyone have any ideas ?

Question    |  last reply


Would it be possible to turn seats around? Answered

Would it be possible to turn seats around? Like in a ford escape take the rear seats out, and reverse them so they face backwards?

Question by frisbeechamp1983    |  last reply


Independent suspensions? Answered

I have been trying to figure out how to put an independent suspension on a Huge scale RC.  What I have noticed on large cars is that unlike small RC cars the rod going from the dif to the wheels is solid and can't extend/shrink.  Why doesn't this bind up? I have also noticed that for some reason they don't line the suspension up to move exactly up and down. The wheel's pitch is actually set up to change as the suspension depresses.

Question by jj.inc    |  last reply


How to power a rear camera ???

Hi ... could some one help with powering up a rear camera ??? I bought this one for my car ... but I'm not sure about how to power it. I know, that I have to use the "cigarette lighter" socket. But do I have to use any resistors to protect/not to burn the camera ??? Or its just fine to buy a car socket adapter, solder the wires and that's it ??? Camera : power supply 12V, current consumption 50mA. Thank you very much. Zholy

Question by zholy    |  last reply


Rear Wheel RC Steering?

Ok, so before I actually get to my question let me explain what I am doing. I have a traxxas rustler, I wan't to put 4 wheel steering on it, and I wan't it to be very stable.  I know how I am going to set up the steering, but I need help with the electronics of it.  The stock reciever has a channel 1 output (to ESC) two channel 2's (for two servos) a channel three, and a channel 4.  I wan't this car to be able to switch one of the servo's from inverted to not inverted using channel three which is the output of a two position switch.  Is there a way to do this without mechanically connecting the whole fancy layout seen below?

Question by jj.inc    |  last reply


Projection TV, all in one entertainment center

I have been playing around with the idea of a rear projection TV as a full all in one entertainment center. As most know rear projection TV's are large and very hollow. My idea is to add a mini-ITX motherboard, a Hard drive, a webcam, 2 USB ports on the front, an IR reciever, and a multi-microphone array. I may also add IR emmiters for use with a will remote, audio ports for a surround sound system, Light sensors to adjust brightness. My TV also has a Memory Stick reader that i want to use for the computer instead.  The motherboard and HDD fit in the base just right with plenty of room to stack a few drives if needed. and there is plenty of room for other accessories if needed. There is a door on the front of the TV with an extra input, with space for USB Ports. The IR reciever for the TV I think should fit a second. If not I will use some sort of repeater to split the input between the 2. although the TV's remote may not be needed at all. The Micro ITX board I have been looking at has a mini PCI port with a laptop style WIFI card, I plan so get some of the antennas used with a laptop and mount them as close to the top as I can get them. and maybe add a bluetooth/wifi card as well. The camera will be an internal laptop camera mounted at the top. The light sensor will be mounted ether on the front or on the top. (I think front will be better.) The microphones will be mounted on top near the camera. One on ether side. Thats the easy stuff. The hard part I want is for the computer to turn the TV on and off with itself. This requires something that will look at the state of the TV. (using the power LED inputs) and close the power button for a second if it needs it. 

Topic by jpayton    |  last reply


What is the recommended material for REAR-PROJECTION?

Having an older rear projection unit that has a rather horrible front panel which reduces the available brightness, what sort of material is recommended as the "screen" if I convert this into a table with IR sensors built in?

Question by Treknology    |  last reply


How to disassemble the rear bike sprocket ?

I am working on an electric bike/ cart thing. I can either use an extremely small tire (scooter) and the chain that fits that sprocket, or a bike tire and sprocket. I have limited resources and money. I have an old rear wheel sprocket from a bmx mike. This was cut down about a year ago and was not done very well. The sprocket is not level. i was wondering if there is a way to pluck the center piece, i think it's the hub, out of the sprocket to just use the toothed part. without cutting or welding as i no longer have my grinder and have no access to a welder right now.

Question by NativeSs    |  last reply


Can I transmit video from one mobile phone to another via Bluetooth connection?

Because I have 20 or so old mobile phones that are perfectly functional, though very outdated, I want to use them for something. I previously had an idea to extend the phone's camera wires so I could use it for a remote camera on a tether, but found no real way of doing such because they all use ribbon cables. Also, I was told voltage drop would cause it to malfunction. Now, my newer idea, for example, would be to mount a camera phone (we'll call it phone 1) to the rear window of my car and transmit the video via bluetooth to a phone mounted to my dash (and he will be phone 2) and allow the two phones to act as a rear mounted camera system. So basically phone 1 at the rear of the car would bluetooth transmit his video feed to the dash mounted phone 2 where I could  just have to glance down in order to see better behind me. This video, plus mirrors should make it pretty easy to know what/who awaits my rear-ward travelling destruction! The phone I carry everyday is an Android phone, so maybe there is an application available for download to allow another phone to connect to it in this way? I have had no luck with searching for one, but I'm not sure if anyone else here happens to know of one. I don't need to record the video, I just want to view the video from another phone in real time. Also, I am aware backup cameras can be had for next to nothing, but I want to try and find a use for some of the old mobile phones I have. I prefer to recycle them for a cool project like this if possible. Thanks for reading!

Question by FishstiK    |  last reply


disc/disk brake squeal rear brake? Answered

After a rainy day riding my bike, i had wiped it down and forgot the rear brake and now it squeals when I try to use it. More like an elephant noise. Help please!

Question by knektek    |  last reply


Infomation about rear projection TV problem.

Hi Folks. I know there are some very knowledgeable people out there so I hope you don't mind if I pick your brains for some info ;-) I have a problem with our Toshiba 46WH08B rear projection TV. Yesterday I noticed that there is a distinct blue shadow around the images at the bottom of the screen this appears for about a 1/4 of the way up the screen the middle is fine as is the top right hand side but the same blue shadowing appears at the top left. I have tried adjusting the convergence but as the centre of the screen is ok this does not really help. I have done quite a bit of web searching on this & have an idea as to what the problem is but was hoping that there may be someone with some real knowledge of TV repair that could confirm my suspicions. I don't really want to call out a TV repair man yet as I don't really want to get stuck with a bill just to be told it's beyond economic repair. Thanks in advance for any help folks. All the best. Nostalgic Guy.

Topic by Nostalgic Guy  


Information about rear projection tv problem.?

Hi Folks. I tried asking this in the Tech Forum about a week ago but had no replys so I thout I would give the Q&A; section a try. I know there are some very knowledgeable people out there so I hope you don't mind if I pick your brains for some info ;-) I have a problem with our Toshiba 46WH08B rear projection TV. Yesterday I noticed that there is a distinct blue shadow around the images at the bottom of the screen this appears for about a 1/4 of the way up the screen the middle is fine as is the top right hand side but the same blue shadowing appears at the top left. I have tried adjusting the convergence but as the centre of the screen is ok this does not really help. I have done quite a bit of web searching on this & have an idea as to what the problem is but was hoping that there may be someone with some real knowledge of TV repair that could confirm my suspicions. I don't really want to call out a TV repair man yet as I don't really want to get stuck with a bill just to be told it's beyond economic repair. Thanks in advance for any help folks. All the best. Nostalgic Guy.

Question by Nostalgic Guy    |  last reply


How to change rear break and rotor on 2001 Kawasaki ZR7S?

How do I change the rear  brake pads and rotor on a 2001 Kawasaki ZR7S

Question by Tomk747  



Doesnt a left rear axle mounted trailer hitch present issues when turning right?

It seems to me that a trailer hitch mounted to the rear left axle would be a hinderence when turning right. I would think the tow bar would hit the rear tire in a right turn.It seems to me that it would be more practical to have the hitch mounted in a similiar fashion to a standard automotive hitch,at the rear supported on both sides.Any thoughts?

Question by deslok03    |  last reply


How to develop electronic differential for articulated rear drive e-trike using the steering angle in Matlab/Simulink?

One wheel at the front and two wheels at the rear,steering mechanism

Question by SachinK114    |  last reply


I have a stag 15 and it has a midwest rear flip rear site.I want to know how to properly use it before i go to the range

On the Midwest Flip rear site how do you use it to adjust your shot,Do i also have to adjust the front site?

Question by dogtownusa68    |  last reply




what is the best way to adjust mtn bike frame rear hub spacing for conversion to 3-spd coaster brake rear axle?

looking to build a 3-spd coaster brake chopper with steel mtn bike frame. Need to reduce rear axle spacing from 135 mm to 120 mm to accommodate the new wheelset. How?

Question by zounds227    |  last reply


Any ideas on converting SUV rear area so it's flat - possibly hinged ?

I am looking at a Toyota SUV. The problem is that I want to put dogs & crates in the back but the rear seats do not fold down flat!

Question    |  last reply


projector from old rear projection computer monitor?

Is it possible? because what i want to do is hook up my laptop to a old computer monitor and have it project the image onto my wall thanks fidgety2

Topic by fidgety2    |  last reply


Building integrated led rear mountain bike lights?

Hi folks ,as said above , would like to install a row of red high-power leds into the rear of my bike seat  post to give a hidden , high-tech look  :-). Elements of design to be considered ;  to run off  2-4 AA batteries , to use 5-7  5mm leds , to use        " off the shelf parts " , no hand built electronics , to have constant and flash modes , would consider adapting an existing product ( e.g. cateye light unit ) For the installation i intend to drill a row of 5.5mm holes , 25mm apart , with the led heads sealed in place just protruding the surface of the metal post. The led leads would be drawn up and out of the top of the seat post into the saddle area and is where the battery pack would be strapped in. Any electronics could be housed inside seat post or under saddle. A handle bar switch would be nice but not essential. I feel confident about the wiring and fitting of the components ( electrician by trade ) just need a pointer with the electronics. Cheers Pete.

Question by biff55    |  last reply


Windshield Wiper Warmers like the rear window defrosters?

A few years ago, someone asked about windshield wiper warmers.  No real responses.  I'm asking again.  The issue is that in the northern states, the wipers get iced up, and it happens even while you're driving.  We know how to do this for the back window, which won't save anyone's life if the front one is iced over.  We know how to use a hot wire to cut foam. So we know how to heat wire. Some of the newer cars hide the wipers below the glass, so defrosters don't help much.  And washer fluid doesn't work nearly as well as you might think.  Hot liquids freeze faster than cold liquids, but the goal here is to warm up the wiper blades.  How would we go about making a warm wire setup that can be connected to the battery for slow warming and lay under the wiper blade area?  Any guesses?  It's getting cold here in Michigan!  You'd think one of the automotive companies would figure this out, but they clearly think we all have garages and live in warm states.  I'd like to see some responses that wouldn't be too difficult for a novice - I don't care about technical terms, I just want to know how to wire it up so it works.

Question by whisperonthewind    |  last reply



I need to put rear brakes on an adult trike. Any help?

I purchased an old three wheel bicycle from a local secondhand store. It's in great shape, except the fact that it is lacking rear brakes. I haven't had any success in searching for plans, so I was wondering if anyone had an idea or (better yet) previous experience with rear brakes on a trike. I was hoping for a great way to run both rear brakes from a single brake level on the handlebar, and there aren't any forks around the rear tires to attach brakes to, so I guess I could use some help there as well. The rear conversion kit looks similar to the one here. It's a small picture, but it's the only accurate one I could find. Any help would be amazing. Thanks in advance.

Question by TokyoSquid    |  last reply



hlep! ebike question: how do you bolt the rear sprokect on the bike Answered

I am planing to use a 250watt motor to power my bike got it all figered out execpt how to bolt the rear sprokect?

Question by tazerl494    |  last reply


How do I calculate total lateral forces in the tyres of a 3 wheeler?

Are the lateral forces and lateral slip angles same for rear wheels and front wheel in a front (one wheel) steered rear drive vehicle?

Question by SachinK114    |  last reply


Toggle between front and rear view cameras on one display in car?

I installed a front and rear view camera in my car, have a display that only accepts 1 RCA input, and want to be able to toggle between the two video feeds.  I've seen pictures of other people that have done this with what appears to be a simple toggle switch but I can't find any wiring diagrams/instructions.  Can anyone shine some light on this for me and explain how to do it? 

Topic by mrwd40    |  last reply


how do you rebuild a rear wheel hub with coaster brake on a schwinn beach cruiser ?

I have all the parts but i'm unable to assemble the hub

Question by mrmouth    |  last reply


Will removing a rear seat move the centre of gravity in a minivan too far forward? Answered

A family member frequently drives around in the van all by themselves, which I'm sure is an enormous waste of gasoline. Removing one or both of the rear seats will help reduce the weight of the vehicle and improve the efficiency a tiny bit. That said, I was wondering if doing that would cause handling issues due to the centre of gravity being farther forward. Also, winter is long and icy here, so rear traction is an issue 5 months of the year.

Question by zalf    |  last reply


I need the assembly procedure for a 1974 VW rear axil and wheel bearing? Please?

The Chiltons manual that i have doesn't give the procedure for the rear wheel bearings or axil assy.

Question by willyb62    |  last reply


Alternative ways to create a one-way mirror?

Hello, I'm creating a video installation with rear-projection. I want the viewer to see his reflection and the projection so I was thinking of half-silvering Mylar or acetate to create a screen. I also thought of mixing aluminum powder with a clear medium and painting it on however, no luck finding that in Canada.  My only issue with silvering the screen is that it is so large (10x5ft) that I don't know how to go about heating it up when I pour the solution over it.  Looking for suggestions for other materials as well as solutions to these issues. Thanks!

Question by AliyaK1    |  last reply


How do I remove the rear lens cap from a Canon manual focus FD lens.? Answered

 This is a 50mm lens from a Canon manual focus A1 camera.  The knurled metal ring on the rear of the lens will not turn. I could have installed a cap from one of the newer style FD lenses.

Question by martinm5862    |  last reply


how do you take out the rear back window?

Im trying to take out my back window off of my honda accord 96 to remove tint, but i dont know how ...help -Paul-

Question    |  last reply


how to wire an amp from the rear speakers of my car?

I have an oem navigation cd/dvd radio head unit in my 05 Dodge Magnum that I just installed and I want to wire in an amplifier and run a 12" or 2 10" Subs with the existing system. I was fortunate enough to grab the ear of a tech that works at the local Dodge Jeep dealership and asked him what I needed to do and he said that at the dealership they tap off the rear speakers a piece of equipment that they can then hook up an amp to. Does anyone know what piece of equipment he was talking about?

Question by jbhemi    |  last reply


What material is used for car convertible tops-rear window? I want to enclose a porch?

I want to enclose a porch with 4X8 foot framed windows using this material for the window-rear window convertible "plastic"?

Question by Golfright    |  last reply


Turbine Jet engine...? Answered

If the intake turbines' speed is regulated by the compressed exhaust over the rear turbines, would it be more effecent to have 2 props in a row, or a single large one at the rear of the engine to control the rotation speed?

Question by shawneegeek    |  last reply


Tadpole style recumbant - with the rear single wheel doing the steering with the front two wheels fixed - plausible? Answered

Now in a way you couldn't really call this a bike anymore, as it will not be pedal powered.  Instead I am gearing one of my wheelchair motors left over from one of my robots to power the rear wheel.  It will be kinda like driving a boat on land.  So... am I nuts for trying it this way.  Included a quick BASIC concept sketch.

Question by iminthebathroom    |  last reply


How can I adust my tv aerial to detect signals from the rear?

I have a Yagi style tv aerial in the loft. I get very good reception from the forward direction, however there are a few stations that I would like to receive from another transmitter to the rear of the forward direction. I do not want to lose much gain from the front, but would like to increase gain from the rear. Any suggestions - short of fitting a second aerial? Thanks

Question by anon_private    |  last reply


Is it possible to have a reversed go-kart?

What I mean is to have front wheel drive & rear wheel steering, as oppose to front wheel steering & rear wheel drive. if so what benefits does it have? Would it be harder to install on a homemade go-kart? Please answer a.s.a.p.

Question by DarkVolt    |  last reply


Which is preferable? A riding mower with a rear mounted engine or a fore mounted engine?

 I am looking into purchasing a used riding mower and can't seem to find any objective information online. I'm not sure what to look for and would appreciate any advice anyone can offer. Thanks!

Question by penumbra_    |  last reply


strange fluid inside a rear projection tv i was pulling apart? Answered

So i was disassembling a toshiba rear projection for the fresnel lense, and figured i'd pull the rest of it apart and see what parts i could salvage, i got to the gun assembly (i think its called that) and was pulling one of the guns to bits to salvage the lens mount and discovered there was some sort of liquid between the gun and the lenses, it smelt strongly like alcohol and burnt when i held a flame to it long enough, i got some on my hands and my hands started getting a burning sensation so i washed it off and stored it in an icecream container can anyone tell me what the liquid is? why is it inside the tv/projection guns? 

Question by mammasboy    |  last reply


I want to make a water screen for rear projection for Christmas and advertising.

I have read about having drilled very small holes (16 per inch in pairs of 8) in a line. Any ideas out there? Rentals and purchases are out of my reach on ones already out on the market. Basically I have the concept down pat but I'm not sure about the diamiter of the holes and if I need pressure?

Question by opc167    |  last reply