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I have a Polaroid 373b LCD. I would like to send the Power Board to you and let you repair it. Let me first tell you that I had the typical 2 year problems. I replaced the capacitors with two 35v 1000uf ones. It worked great for about two months. Then while using my shopvac in a plug nearby, the tv lost power. I didn't replace the white plastic protector behind the board and noticed an arc spot. Also the fuse in the power plug was blown I replaced the fuse with 3amp 250v fuse and was able to restore power but no picture. I have since replaced the plastic shield. I have a red LED on the front that turns blue when power ON. There is also a subtle screeching sound from the power board that gets louder when power ON. This blue light/ power on/ loud screech last for about 5sec, then total power loss. This process can be repeated. Also, the caplacitors still look fine -- no bubble out. Please help. I don't know what to do now. One more thing. When checking voltage, I get 120v to board, 70v to all radiators except for the long one which only gives 30v. Thank so much. Jonathan Moeller
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Have you misplaced your Polaroid FLM-373B LCD HDTV Owners Manual?
Would you like a digital, searchable, pdf version of the Polaroid FLM-373B LCD HDTV Users Guide? Follow this link (& click FREE) to download a pdf version of the operations manual.
Have you misplaced your Polaroid FLM-373B LCD HDTV Service Manual?
Would you like a digital, searchable, pdf version of the Polaroid FLM-373BLCD HDTV Service Manual? Follow this link (& click FREE) to download a pdf version of the operations manual.
if no stand by indicator the first indication is power supply board failure. now the first place to be check is the fuse if blown?. if yes, before you replaced with new one re check other component parts in the power supply board which the cause of blown. you need a digital or analog tester so you can perform the job. then making sure you have at least a basic knowledge in any electronic repair, for safety purposes. hope this can help good luck.
if you had a surge, it could have damaged more than just the power supply. When you plug in the unit, does the power indicator light up??? your main board could also have damage. The main board sends a signal to wake up the power supply thus turning on the TV. If you have to replace the main board as well, it probably won' t be economical to repair the set.
Have you misplaced your Polaroid FLM-373B LCD HDTV Service Manual?
Would you like a digital, searchable, pdf version of the Polaroid FLM-373BLCD HDTV Service Manual? Follow this link (& click FREE) to download a pdf version of the operations manual.
Have you misplaced your Polaroid FLM-373B LCD HDTV Owners Manual?
Would you like a digital, searchable, pdf version of the Polaroid FLM-373B LCD HDTV Users Guide? Follow this link (& click FREE) to download a pdf version of the operations manual.
what does the board look like in same area as black arc spot on case (damaged??) the high pitch whine you hear is the high freq switching going on in the electronics , this by itself is not too bad ( I had an old floursent clock that whined so loud it made my dog howl !! and it still works !! ) but when it accompanies a non functional device id say the power supply is straining to provide power (over loaded)
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