Question about Polaroid FLM-3734B 37 in. LCD HDTV

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Mlt070a power supply (polaroid 373b)

I am looking for the values of the two large caps in the middle of the board C104 and C105 i have found the end of the internet twice now looking for the values cant find them the dummy who originally so called fixed the power supply replaced the wrong caps and threw the original capacitors away and replaced with a cap alot smaller (not the right one) so if anyone can help please let me know its driving me CRAZY!!!!

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Mine are 100ufd 450volt 105C capacitors.
Hope this helps,
Mark

Posted on Sep 15, 2009

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Mine are 1000uf 10v 105F - Replaced with 1000uf 3vv

Posted on Oct 02, 2009

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Help new power supply will not power up.


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.

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Polaroid flm-373b lcd tv - making a loud buzzing noise. Picture is fine.


Possible that the main power supply unit which is the SMPS- switch mode power supply- has a faulty capacitor or in the INVERTOR board which has changed the value and so the frequency being changed can cause higher huming level- reduced to lower frequency.
so check the board for leaks , if so replace. Also check if the threshold voltages are below level in these circuits. if so the capacitor can be identified. If there is change after the component heats then simulate the circuit board and confirm using a hair dryer.

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I have sound but no pic on my polaroid hd tv model number tda03211c there is also a red light blinking in the back of unit when it is on


Hello; I am John at J D Electronics in Poland Maine. I have had a few Polaroid model TDA03211C in my shop that would show Polaroid on screen and then loose the backlights. but not always, but would still have sound and remote control abilities. Many of these Polaroids and Memorex 32" sets have the same design. There is the main board in the bottom of the large metal box with the power supply/ ivnverter board in the top. On a few of these I found opened Caps to the right of the 2 large ivnverter transformers on the left. These were labeled EC17 and EC18. They are 10ufd @ 450V and 105 degree C. Replacing these 2 caps has now fixed 3 of these sets. John

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If anyone is in need of Polaroid lcd tv parts contact me


Do you have any power supply boards left for a TDA03211C?

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Polaroid FLM-323B nothing at all


Check and replace ALL high value electrolytic capacitors on the power supply board. The Polaroids have known issues with leaky caps in the power supply. It's best to just change them all to prevent future failures.

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2 Answers

Blue light on flm3238


I made an easy tutorial for the cap problem. If you are not comfortable doing the work yourself other people have had Radio Shack do the it (very cheap and without shipping).
I feel that we are all in the same situation, if we had the money to get it fixed professionaly we wouldn't be on the internet searching out a solution.
check out this link.
http://www.fixya.com/support/r741402-polaroid_flm_373b_lcd_tv_black_screen
if you have any problems please email me I will try my best to help you out for FREE!

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