Sanyo Model DS20030 how to replace sensor or buy one
My grandma has a Sanyo mfg 1990 Model DS20030 and the picture is great however we have bought many universal remotes they didn't work. So we bought a remote online that was suppose to go to the tv which was now listed under a fisher brand and we got it. It works (the remote) however it won't work on the TV. I was told it was the sensor in the TV. How do I go about buying one to replace?
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Depending on the model number, there are a number of things that could be wrong. Even within a given model number there are a number of possibilities. I have seen everything from rectifiers to horizontal outputs to bad electrolytic capacitors to bad solder connections kill these things. If you are skilled and experienced these are a few things to check. If you do not have repair experience then please stop, put the back on it and get it to a repair facility. I rarely have estimates declined on these because you can not replace it for less than most repairs will cost.
How do you know if the fault is really the sensor? We test these with a scope and check to see if the data pulses coming out are correct. It is possible that the failure is between the sensor output and the uPC controler or the controler itself. I have seen it all.
If you do not properly verify where the failure is and also determine the exact failed parts, you can end up buying a lot of parts for nothing.
You can order parts from the manufacture's authorized service center. Some may refuse to sell parts. In this case you can call the manufacture directly for a list of parts dealers that are close to your area who will sell you the parts.
If the manufacture has the policy of not selling parts to non authorized servicers (many do), then you will have to give the set to one of their authorized service reps.
If the horizontal lines going through the picture are fine white lines, then I would suspect the picture tube as having a heater to cathode short or some other problem. Since some sets have had a 3 year warranty on the picture tube, you may be lucky unless the labor to replace the tube is more than the set is worth. Sanyo is usually not a good name in consumer electronics anymore, so if you're looking for a replacement I would look elsewhere.
sanyo does this alot it is either you need to replace your tuner or you have two resistors 220k ohm s that need to be replaced.this will fix your problem.if repair cost is cheaper to fix then buy a new one its up to on that one!
The tv has been dropped or banged around, you can try to get a degaussing coil and fix the colors, if you cant pull them back out than it would need a CRT/Picture tube...in other words the tv would not be worth anything.
That works great except I can get the tuner to program any channels above channel47. Is this a limitation of this older model TV
yes there is limitation in old tv.
is there some setting I can change in order to get more channels using the tv tuner?
in INDIA what we do is put a remote control ckt which gives us about 250 channels.
of course we replace tuner also called hyper tuner along with remote ckt or replace whole kit which are cheaply available.& serves the purpose.
hope this will help
if tv have black screen,increse screen control to see vert ic is defective,and if screen is white with lots of line acrose ,you can find open resister,on pic tube board,or in main board near transformer.