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You can try a hard reset: Unplug TV from AC mains and remove all cables from TV. Wait about 30 minutes and replug to AC power and redo the cabling. Switch on the TV and see if it works..if this fails then change the cable cord ....
I have not repaired this particular model. But I have repaired another polaroid flat screen TV. I can tell you for sure, the biggest problem here are bad capacitors in the signal board. You may find 15 or 20 bad caps. On the power supply there may be a two or three caps that need replaced as they will be weak but not real bad. Yes,the majority of the caps will be found in the signal board. You will need a good capacitor checker to locate these. It will require patience and skill to remove and replace these caps. I cannot say enough of bad capacitors in this TV. Find a TV tech to help you! Thanks for asking, show me a few hands of appreciation. This answer is your best effort for repair!
I have the sam camcorder. It has the same problem. When you press the on/off button, it does not do any thing just red light blinking on the top. After wandering with buttons without really knowing what I am doing, I took it to Sanyo service center. They found the ribon connecting the LCD to main body being damaged. They replaced it and charged me $75 for that. After that the camcorder works good. I saw the ribon is very vulnerable. If you twist the camcorder just a little hard, that ribon may get shocked.
Hello, this model has two ribon cables that run from the t_con board to the panel, it sounds like you might have to replace one of them if not the whole t_con board. You can find parts for this at www.shopjimmy.com, I would recommend you taking this unit to a certified repair center if you are not atleast a bit technical because you have to did a bit deep in to the set for this one.
If you have already replaced the LCD inverter cable and still the problem is there . You also told that the display is working fine when connected to the external monitor. This mean the Video controller on the motherboard is fine. This lead us to the conclusion that you would have replace the whole LCD assembly and not the inverter cable alone.
I found one of these printers in a parts bin and it looked like it was in great condition so I said what the heck, I'll try it out. Had the blinking light problem and figured it was a nic card because all functions via USB worked fine. If I plugged in a network cable, it froze up all functions except the LCD menu.
Took off the side panel and low and behold, it had taken a bad fall and the NIC card's connector to the main borad was busted. The main borad was fine though so it does everything fine via USB. Its a modulear NIC card so replacing it would probably work, but the chance of finding a replacement NIC card for the printer? Slim to none, it doesnt even have a model number. Only if I come across another one of these printers. Oh well, sweet printer for free, even if it only works via USB.
It might be possible to repair the tear. You'd need to bond a plastic backing to the back of the ribbon to support it. Clean off the front layer to expose the torn conductor ends then paint a thin strip of conductive epoxy or car heater matrix repair along each of the flat wires. Finish off by covering (when set) with scotch tape.
Everything needs to be completely squeaky clean (use alcohol) before you start.