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Re: Tuner or soder problem
Well now that would totally be up to you, as the set does have some age and time on it, and the tuner part# 859850130 at www.partstore.com at a cost of 43.03 + shipping is still available.. That tuner is not hard to change out and should take off after replacement without any alighnment or adjustment if its done properly. BUT If your not a electronic tech of some sort then you really shouldnt be inside of any tv set as there are no user serviceable parts inside. maybe you have a friend who knows a bit about tvs or can solder and unsloder???BTW a job like thios should cost over 200 bucks if done by a pro. Good Luck
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Fixed.The tv Tuner signal board have a problems and the causes.U have some mechanical skills like take things aparts amd putting it back together again.Yes.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish tv Tuner signal board for the replacement.Or the tv shop,will repair by replacing this tv Tuner signal board for u.It should cost u about half the price of a new tv.
The problem must be either because of Hardware or software. You are saying that you already tried installing new drivers and softwares for the tuner card and checked, but its bad luck. So it seems the hardware device may be failed. So first ensure the hardware working properly by plugging tuner card into any of your friends system. If it works properly, then it must be surely software problem. We can try installing any other version of device drivers and softwares and make it work.
On most TV sets, the cable connector (also called an F-connector) is just press-fitted into the metal housing of the tuner (which selects the channels). It's not very strong mechanically and is pretty easily broken by tripping over the cable, moving the TV if the cable is too short, or often by cable technicians who overtighten the cable connection with a wrench.
The good news is that this can be fixed. There are two ways. The simple method is to replace the tuner. It's quick but costly as a new tuner may run $100. The second way is to replace the broken-off F-connector. On some sets it's possible to do this without removing the tuner, but not always. This repair may take a little more labor time, but saves the cost of the tuner.
Either way, this is a repair that's best left to a professional. Without the soldering skills and equipment needed, it's possible to do major damage to the TV and tuner circuit boards. I would recommend getting an estimate for the repair from a shop in your area. Yes, there are still places that fix TVs, but they are getting scarce.
Another possible "fix" is to forget about using the TV cable connection and use a VCR or DVR to tune the channels, and just use the TV's video and audio inputs. It doesn't repair the TV, but it gets you back onto the cable.
I hope you've found this helpful. Thanks for using Fixya!
1. Can you view a DVD correctly? Good video and sound?
2. If so, you can get an "external tuner" like the Digital convertor boxes that the government subsidized and hook that up to your cable....
It will work (if you answered YES to #1)
3. Cost to fix TV is around $120... (tuner board)
(Don't open TV ... high voltages in there...)
4. Cost to use an external tuner around $20
5. Cost to use only for viewing DVD's ... FREE
You don't mention the model, but your symptom is common for many brands of TV. Solder connections inside the tuner go bad and cause the kind of problem you are having.
When the trouble starts, try tapping on the back of the set where the antenna or cable connection is screwed on. You may find this causes it to clear up or at least have some effect. If so, the problem most likely would be cured by repairing the tuner. This involves taking the tuner off the circuit board, opening its cover, and resoldering the connections that are usually visibly cracked.
This is probably not a repair you could make yourself, unless you have some experience with electronic soldering. But a service call would be less than the cost of a new TV. If you decide to go with a service call, make sure to tell the servicer you'd like the tuner repaired. Some techs will just give an estimate for replacing the tuner because of time, but opening and repairing the tuner does not take that much longer than just replacing it. And it saves you the cost of an expensive part.
If I understand your problem correctly it sounds as though when you watch your TV through the tuner you get nothing (no sound or picture) but when you watch it through the Aux inputs (with DVD or VCR) everything is fine. If that is the problem you either have a bad tuner or a bad matrix IC. I've seen both problems in this model and the cost to fix either is about the same. If you know TV safety and can solder unplug unit, remove the back, remove the main circuit board, remove the tuner from the board. This web address http://www.moteva.com/shop/customer/home.php?cat=267 has an original tuner for $18.00 US plus shipping. Install the new tuner and give it a try. If all went well this should solve your problem. If not you will probably need a service manual to locate the matrix IC. http://www.servicemanul.net for $16.00 US as a download. Locate the matrix IC. It should be on a vertical board on the left side. You should be able to get it at this website http://www.tritronicsinc.com This should resolve all your problems. If you can't solder or do not understand electronics you should have a repair tech fix it. Cost should not exceed $100 to $150 US. A free solution would be to hook up a VCR to the Aux input and use the tuner on the VCR and forget about trying to get channels through the TV tuner. It's your choice. Good luck and remember safety.
It has always amazed me how many "F" connectors get pulled out of tuners. I know because I've replaced hundreds, usually successfully, saving the cost of a new tuner. You need to unsolder the tuner from the board and remove the side cases. If the tuner board is not damaged beyond repair, (if it is you have to get creative), a new unit can be soldered in place. Put everything back together and you will be in buisness. New "F" connectors can be purchased from MCM Electronics at www.mcminone.com, part #215543 for $2.50. I always use a new connector as the old ones are usually trashed. Reliability is compromised if you don't use a new one. Technically you do not need the cable hookup since you have composite inputs. For my money I would just hookup a VCR (with a tuner) coming out of the VCR composite jacks into the TV composite jacks and use the tuner on the VCR leaving the TV in Aux, or whatever they call the composite inputs, and call it a day. It's you're choice but using a VCR tuner is faster, easier, cheaper and if you want to play a VHS tape you're already hooked up! If you are a traditionalist and want the TV 100% remember to be safe while working on it. Good luck whichever way you go.