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| Thread ID: 58177 | 2005-05-24 01:12:00 | Microwave LCD display gone haywire | Greg (193) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 357918 | 2005-05-25 12:37:00 | THank you Billy T for your considered and informative reply. Yes we do have a Single Wire Earth Return. It was put up in 1949and we have had loads of problems (no pun intended) down the road past where I live. Brownouts. The cause may be a poor earth, especially if you are in volcanic rock/pumice country. What may be happening is that the supply voltage is stable but the neutral (earth) is rising up to meet it. This is not too easy to test because you still need a good earth to meter the neutral, however I'd still take a good look at your earthing arrangements, and you could try driving some stakes in a suitably moist area (downstream from septic tank?) :D linking them together and running some (very) heavy cable to the earth bar in your switchboard. This should be linked to the neutral bar, but if the board is old it will just be a shared common point. Just making a trial extra good earth and running a light weight wire into the house then measuring between that and the neutral or earth pins on a power socket while drawing a solid load (stove on full) might show up a problem. I would normally say that the situation should improve in winter when the ground is wetter, but that can be countered by heavier lighting, cooking and heating loads dragging the supply down. Maybe if you could check your voltage you might be able to take the supplier on for not meeting the regulation supply quality. As far as I know SWER supplies are not exempted. BTW I'd starve if I relied on voltage monitoring, I do all sorts of electrical and electronically based things. Cheers Billy 8-{) |
Billy T (70) | ||
| 357919 | 2005-05-25 22:20:00 | Thnks once again Billy T I am going to print this out take it down to the neighbours. My power supply is fine. Only two months old after 15 years on solar panels. |
mark c (247) | ||
| 357920 | 2005-06-23 20:20:00 | Hello from the States. We have the same problem over here with the microwave display panels. The biggest culprit is Sharp. The website address below is a guy in the right place at the right time for these kinds of problems. I was told by a repair shop that I would have to put out $150 for a part that Sharp knows is trash. I searched the internet for an alternative and found this business refered to by someone at epinions.com. I hope it's useful to you folks. mem.tcon.net |
Yankee (8195) | ||
| 357921 | 2005-09-28 23:38:00 | Hi guys, fixed my Sharp Carousel display this morning at work, I checked all the components on the power supply pcb and control pcb, but no problems . Finally fixed it after 3 hours of messing around by running the flat part of the tip of my soldering iron over the carbon tracks of the lcd cable where they connect to the lcd driver pcb . It seems whatever conductive glue they used to make this joint went high resistance after about a year, heating it up must have just made a good connection between the carbon and copper again . Hope this helps the DIY guys out there . The carbon tracks are the ones you can see when youve removed the plastic control panel and are looking into the back of it at the power supply pcb and control pcb . They are the ones right at the top . Hope this helps . Cheers Hein B |
kernels (8196) | ||
| 357922 | 2006-01-24 11:18:00 | Well, well, well. I read all of this good stuff - with a smirk. I'll certainly be trying Kernels' recommendation. Why ? My good ol' Sharp R530E's Green-LED has been gradually losing columns in the display. Still works a treat, mind you. I decided to finally get it attended to. The repalcement part quoted *today* was a well-positioned $196 - ex tax ! Lesson : Stay away from SHARP. Buy a cheaper unit which one can afford to toss out and start again if it breaks - at all. Now, I'm just waiting for the thing to fail completely, so I can rid myself of this last SHARP device I have. NeverAgain. |
blunted (8197) | ||
| 357923 | 2006-01-24 15:37:00 | Our Sharp Carousel microwave oven did the same thing, not long out of warranty. We have heard of one other case. Won't be buyng Sharp again in a hurry. |
Billy (6701) | ||
| 357924 | 2006-01-24 19:30:00 | Eh, ours has gone bonkers as well. Not sure what brand though, it just makes it really hard to read the time :( | mejobloggs (264) | ||
| 357925 | 2006-01-24 20:10:00 | Are there still a lot of this system in NZ?>>> . . . . . . If it is a single line earth return job it could even be her own installation that is at fault . . . . . . Single Line? This was what made ConEd (New York State, New York City Utilities Company) quit allowing single lines . It seems, that enterprizing people would just drive a stake into the ground and another on the other side of their property and harvest the ground effects as current . . for free to run their homes! When ConEd figgered that out, they went to duplex . :lol: :thumbs: . . . and that's not the end . . . A guy in Utah had some interesting coils he installed under the huge power distribution towers that carry the power all over the US, these were crossing his property . He was harvesting the eddy currents via induction from the power grid! He tried to plead that they were for communication with alien spacecraft . . . . . . . . . . . . the judge didn't buy it . |
SurferJoe46 (51) | ||
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