Best Answer

TV's have a built-in power supply (Switched Mode Power Supply - SMTP) to convert 110V AC to the required DC voltages plus the Extra High Voltage (EHT) for the Cathode Ray Tube (CRT). If the fuse is OK and both sound and video are not present, then the fault is almost 100% with the power supply. Some older TV's have a fusible resistor in the SMTP that "opens" whenever there is over current - check a thick resistor (usually a wirewound resistor)in the SMTP to see if it is open, Other faults that I haev discovered are the power transistors in the SMTP (usually there are 2/3 MOSFETS) - check id these are shorted or open using a multi-meter. RepairFAQ is a wonderful site that gives a lot of info on this - if you arehandy with a soldering iron and a multi-meter, this is the site for you: . If you are not hands-on, don't waste time trying to get it repaired through a repair shop - you will spend as much on the repair as you would on a brand new TV. And LCD TV's are falling in price - you can even buy a 20" LCD display for $170+ and an external tuner for $50 - or a fullfledged LCD TV for $300 .... Good luck

User Avatar

Wiki User

โˆ™ 2006-08-13 19:42:21
This answer is:
User Avatar
Study guides
See all Study Guides
Create a Study Guide

Add your answer:

Earn +20 pts
Q: What would cause a Sharp Linytron television to have no picture and no sound yet the fuse is OK?
Write your answer...
Related questions

What causes a slanted tv picture?

If the deflection yoke is rotated it can cause a slanted TV picture. The deflection yoke is located on the tube neck inside the TV.

Can a television cause an explosion?

Why not!Smashing the face of the picture tube will cause an implosion.

What would cause a television to have no picture and yet have sound?

the tube has gone. its the second most expensive part of a tv after the screen.

Why is the picture on my TV concaved at top bottom?

Cause of Concaved Picture It sounds like you have a bad capacitor somewhere in the vertical circuit. As it ages and dries out, it changes value, and usually in the wrong direction.

Do the new, true LED TVs really provide a better picture over traditional LCD TVs?

Depends. People say true LED TVs give a better picture over the traditional LCD TVs simply cause it covers a more wide area. True LED TVs are made with higher resolution then normal TVs of today.

Why won't your Fios remote control work?

I had this problem where the Fios remote control stopped responding to inputs on certain screens like the DVR, menu, or program guide screen. The issue was infrared interference due to the Panasonic TV picture mode. If you have a Panasonic TV and the picture mode is set to VIVID it can cause this issue. Set the picture to a different mode and you will be fine.

What makes your TV picture breakup whenever certain vehicles pass your house?

In the analog days, a weak signal level would allow this to happen. Objects moving near the receive antenna could cause the incoming signal to arrive at the receive antenna at different times causing ghost, reflections and a jumping picture to appear on the tv screen.

How come my Quaser 27 in TV picture keeps flashing then goes black does the picture tube need replacing?

The problem you describe might be the tube, but there are other parts of the television that can cause similar effects. You will need to have it checked at a TV repair center and they will also be able to tell you how much a new tube could cost. In these days of very low cost televisions, it is quite likely that the tube will cost more than a new television.

Does tv cause blindness?

Television does not cause blindness.

How does TV cause asthma?

TV does not cause asthma.

What is the best make of LED TV?

Sony have a far better tv, the picture quality and features far outweigh the aesthetically nice looking samsung tvs!! Also it is hard to comprehend why samsung would cause screen shadowing to make the edging slimmer.

How do you stop a monitor from flickering?

You probably have it set for non-interlaced picture. A non-interlaced picture scans every line on the monitor in sequence and this can cause flickering. Setting it to interlaced will cause the raster to scan every other line and then go back and scan the lines it skipped on the first pass. Televisions do this routinely to prevent flickering but its user-selected on computers.

Can a bad tooth cause sharp pain in the head?

Yes, a bad tooth can cause sharp pain in the head.

Does deep vein thrombosis cause sharp pains in the legs?

yes DVT cause sharp pain in the legs

Is it true that many modern electrical appliances and devices contain a capacitor which can store a significant electrical charge that can cause a shock even if the appliance is not plugged in?

The biggest offender would be a Cathode Ray Tube picture tube in a traditional TV. I am not aware of any house hold appliances that would fall into this category. Even in a CRT TV you wouldn't get shocked by touching anything outside the TV, like the power cord. You would have to be messing around inside with the picture tube. However, from personal experience I was thrown across a room by messing with an unplugged TV picture tube.

What was the first work of fiction for Television?

Although not written for TV (before its appearance) the first TV play was called 'The man with a flower in his mouth' And was broadcast on the Baird Mechanical TV system in London in July 1930. There was very little action as rapid movement would cause havoc to the picture.

What would cause sharp needle like pain on your foot?

A sharp needle.

What is the main cause of Sam sharp rebellion in 1831?

i think the main cause of sam sharp rebellion in 1831 is when theslaves get freedom

What movie and television projects has Denis Sharp been in?

Denis Sharp has: Played FBI Agent in "Under the Hula Moon" in 1995. Played Jock in "Cash in Hand" in 1998. Played The Judge in "For the Cause" in 2000. Played Seth in "Distant Shadow" in 2000. Played Sebastian in "Taste It All" in 2002. Played Ferrari Dealer in "Keen Eddie" in 2003.

Why is it that using a computer for a long period of time can cause eye strain?

One reason is the refresh rate on the monitor. instead of a steady picture, it is always flashing so fast you can't see it. This is one reason why watching tv on your computer is harder on your eyes than on an actual television.

Does TV cause cancer?

No, it does not cause cancer. In fact, it's impossible that TV cause you cancer. It only causes you bad eyesight if you keep watching it too much

What was the MAIN cause of President Johnson's sharp drop in popularity between 1965 and 1968?

The on going war in Vietnam was the cause for his sharp drop in popularity.

What causes a sharp intake of breath?

An emotional shock or pain can cause a sharp intake of breath.

What is important about sharp object safety?

Sharp/pointed object safety is important because sharp things without care can cause injury.

Why did television images anger people and cause them to want Australia out of the vietnamese war?

The showing of casualties on TV was a primary cause.