CRT TV Blowing fuse

Because of the nature of your question, you should not be working inside of your TV set. This involves servicing the power supply section. The voltages and current levels used in these TV sets can be dangerious. If not properly serviced, there is also the chance of fire hazard, and safety issues.

Usualy, a blowing fuse is from failed components that are causing the pulling of too much current. Proper trouble shooting is necessary to service the set, and get it working again.

I would suggest you find out who the local Sony service rep is for your area, and let them give you a quotation so that you can make an intelligent decision if the set is worth to be service.

Usualy, when a set is more than about 5 to 7 years old, they are not worth to service. There is a chance for other things to fail.

Jerry G.

Jerry G. ha escrito:

thats a bit pessimistic jerry. I regularly fix tvs many of which are older than that vintage and have very few callbacks. Provided it's given a good once over, especially checking soldering and caps, then theres no reason why it shouldnt last a few more years. In this case it would be silly to toss an otherwise good tv for want of a posistor worth about 1=80.

To the OP: look for a little 2 or 3 legged cube or small rectangle very near the mains input point on the main pcb. This is the posistor

- what you need to check. ( nearby there will be a plug with leads going to a cable with what looks like black tape, wrapped round the outside edge of the tube.)

Before digging around, unplug the set and leave for a few days so the mains capacitor will have discharged. (best not to touch it just in case). Desolder the posistor and try the set again. I would remove the fuse and solder a 60- 100 watt bulb across the terminals. if it glows very bright then you still have a dead short. if it flashes then goes out then you've probably found the fault.

good luck and be careful. Ben-

nd the

Thanks. Would the device have markings like 5ROM then circle m57. Plastic box taller than wider. There's a few devices between it and line cord. Appreciate the safety comments and help. Set unpowered for

snipped-for-privacy@yahoo.com wrote in news:1170542816.873255.18980 @l53g2000cwa.googlegroups.com:

To test if it is the problem you could unplug the degaussing coil and see if the fuse still blows.

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You are misunderstanding the purpose of the light. The 60-100W bulb should be wired in place of the original fuse in the tv so that it limits the current to the set and works as a resistor in case the fault still exsits.

It sounds that you probably need to do some more learning before you jump into working on television sets. They can be quite dangerous.

Read this

- Mike

Thanks. So I get a light bulb socket and run wire from fuse connection to one side of light socket and do the same on other side. To your point bulb acts as a resistor.

that is true. try the bulb, and unplug the degauss coil I mentioned earlier. plug in tv, see what happens, but unplug damn quick if the bulb stays on.

-B.

Thanks. This is a chassis ALEDC246. Have original blown fuse. How can you tell slow blow from fast blow? Thanks