I am new to posting here. I have read alot of good info on this site. My issue is that I had 2 caps that were buldged 1000uf10v I purchased them from badcaps and repaced them. I now have a standby light and a blue light but screen is still black. all other caps look ok is there something I am missing. any Ideas would be great.
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Re: 37" Polaroid TV flm373b Black screen.
Before I did not have the blue light but now I do that is the only thing that has changed.
Here are pictures of the boards.
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Re: 37" Polaroid TV flm373b Black screen.
Ah yes, I've repaired the exact same TV before.
Common problem is that when you unscrew the main board metal cage, you loosen it from the connector on the back of the TV. (It looks like a parallel port but a bit longer.) Try pressing down on where the input connector is and see if it starts working. It's got to be one of the worst designs of TV I have seen yet, took me ages to figure out why it would work only when laying down... gravity was causing the connector to reseat and work briefly.
Also on mine the 1000u/35V cap (green, next to the yellow coil) was also bulged. This filters the inverter power supply I think so suffers a lot of ripple current and heats up and fails after a year or so. Doesn't help that the supply gets virtually no cooling. They've placed a nice convection cooled power supply in a metal cage with very little ventilation.
On this series of TV, I think blue means in standby mode?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: 37" Polaroid TV flm373b Black screen.
Oh my it works it was the plug. Thank you. it wasnt seating right. but we have it working now and only cost me a little time and 7.50 I baught this tv when they were 950.00 dollars had it repaired under warrenty twice then no help from polaroid. I hate this tv but now mabey I will get some use out of it. thank you for takeing the time to help.Comment
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Re: 37" Polaroid TV flm373b Black screen.
I'm glad you fixed it!
I would say you should replace the other cap, or you might have to open your TV up in a year or so and replace it then... just some preventative maintenance...
Polaroid = Chinese no-name imports. This is a Proview TV. I dealt with a "Bush" brand TV made by Proview that looked very similar inside.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: 37" Polaroid TV flm373b Black screen.
I haven't seen Bush and Proview here in the states, at least not in my area, but these similar boards have been seen in Element and Memorex as well.The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS
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Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: 37" Polaroid TV flm373b Black screen.
Thanks, Which cap are you talking about, I will gladly order it and replace it. the two I replaced I bought four of those, just in case it happens again.Comment
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Last edited by tom66; 11-26-2011, 07:26 PM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: 37" Polaroid TV flm373b Black screen.
Thank you for your help. I will order that cap and replace it. the tv is still working. Already better then the repairs from polaroid.Comment
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Re: 37" Polaroid TV flm373b Black screen.
I have a 42" Insignia brand that has that same design.
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