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We have an apex tv in our 1995 rv it comes on with
This TV does not have a digital tuner and since the digital transition now requires a digital converter box to receive over the air television. The name may have made this a little confusing seeing how the manufacturer's name is "Apex Digital". I hope this helped.
Red M on top
Is the M for Mute, is there sound? The CC has many different stages, if you are on text it would show a black square, and you have CC 1-4. You should be on CC1. Check this first.
Turn on the TV
With the remote press the F button and the Mute button at the same time. This should bring your TV back to normal mode. from Don "the TV King"
That ringing noise sounds like a deflection yolk or an on board coil is starting to sing as we call it. theres not alot you can do unless you find the source as the deflection yolf in the past we used to stick popcycle sticks into the yolk while in place and hot clue them to get rid of singing yolks.. But its onlty a temp fix. the best way to fix it is too replace the singing yolk. Now if its a coil it could be a loose winding on the coil and hot clueing the coil on the outside sometimes fixes thast too but in the end the best way was to replace the coil that makes noise.
Tv too bright
This problem might be caused by a problem called blooming. is the picture fuzzy and does the picture look to be streched out. Since you do not have contrast and brightness control this would almost completly point to the HV section of the TV either the control and screen grids of the CRT are going bad or the HV power supply is about to go bad, I would suggest that if you have a background in electronics that you check the HV at the anode of the picture tube and make sure the voltage is from 20Kv to 40Kv using a high voltage probe. You will need a schematic to aid you in your troubleshooting
What you may have is a cold solder joint in the audio section of the TV. To find this problem you will need a schematic, and mutlimeter, and a small audio signal finder. If you have a cold solder joint look in the audio section of the TV (The schematic will help you find it). use the audio signal finder to locat the position where the sound drops out, and then use the multimeter to find if the proper voltages are on the audio output components. This troubleshooting implies that you have the bacground in electronics, if you do not have a background in electronics I would suggest that you take the set to a qualified TV repair shop.
32" Zenith Television
This is due to electromagnetic field affected in the corner area. Check whether there is any magnetic components in surrounding area if found keep away from TV. And then switch off the TV and remove the mains plug also. Switch on the TV after 30mins. The colour will disappear. Even you got the same problem call technical person. Because the decaussing section is not worked.
MY SONS TV
it seem like a vertical integrated cicuit or high voltage problem .hard to tell with out open it an test some parts. one way or another the cost to repair an small tv sometimes its not wortht it , you can expect to pay no less than 60.00 to 80.00 dls for a problem like that parts + shipping and qualified tech. unless the cause of the problem was something else like dropped
As long as you can hook that same cable up to a different TV and get a good picture, you must have somehow damaged the tuner on the APEX - unless the set was mishandled while moving. Those cheaper brands won't take much punishment.
Lost audio & video
You say that you lost audio and video but the screen is blue. That indicates that the majority of the circuits are working OK. To display anything on the screen the high voltage and drive circuits would be working ok. Try an input other than cable (the tuner input) and see what happens. If your unit works through those inputs then you have a bad tuner or matrix IC. If that doesn't give you any results then you probably have a microprocessor issue. The bad news is that Apex does not support their equipment so if the problem is not simple it will probably not be reparable. Good luck.
sounds like theres a problem with the front panel push button for the volume; In most cases it gets pushed too hard or just too week to stand up to multible presses and so the button cracks and de[resses the switch. If one switch is depressed none of the others will work as well . Simply open cabinet and pull back the chassis and relese the stuck button
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