Question about Polaroid TDA-03211C 32 in. LCD HDTV

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I have a Polaroid TDA03211C. Checked caps, they

I have a Polaroid TDA03211C. Checked caps they are fine..found Shorted diode in middle of power supply. 3amp shotky. Should I look for other damage and has anyone ran across this?

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I have the same issue, if you look on the following link, it looks as though someone else had the exact problem you did, only they replaced the shorted diode and it solved the issue. can you possibly take a picture that shows the diode in question? i'd like to solve this on my own as well.

http://www.complaints.com/2008/january/19/Polaroid_TDA-03211C_Nightmare_-_Polaroid_TDA-0321_159310.htm

Posted on Jul 17, 2010

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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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3 Answers

No power inside tv outlet is good and fuse is good. power cord is plug in on both sides.


D10 is shorted. HER304 in middle of Power supply board near large electrolytic cap. Replace with Radio Shack 276-1144 3A 400PIV Diode. PLEASE BE CAREFUL WITH HIGH VOLTAGE PRESENT ON POWER SUPPLY BOARD. UNPLUG POWER CORD!!! OBSERVE PROPER POLARITY WHEN REPLACING DIODE-LOOK WHERE THE BAND IS.

PS- I just fixed the same model this morning.

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

Sep 09, 2009 | Polaroid TDA-03211C 32 in. LCD HDTV

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Tv no power ,dead


D10 is shorted. HER304 in middle of Power supply board near large electrolytic cap. Replace with Radio Shack 276-1144 3A 400PIV Diode. PLEASE BE CAREFUL WITH HIGH VOLTAGE PRESENT ON POWER SUPPLY BOARD. UNPLUG POWER CORD!!! OBSERVE PROPER POLARITY WHEN REPLACING DIODE-LOOK WHERE THE BAND IS.

PS- I fixed this model this morning.

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2 Answers

Dead tv


Repaired dead Polaroid TDA-03211C

I fixed a dead Polaroid TDA-03211C for my friends. When it failed it had just been turned on and then it went totally dead. This unit is a little over a year old and out of warranty. When I inspected the power supply it was continuously trying to start up but could not. With a Fluke meter you could see some of the DC output voltages rapidly rising and falling, but never getting to normal levels. I pulled the power supply thinking some of the capacitors were bad. Once I had the power supply out I used the Ohmmeter to check for any open or shorted diodes and/or transistors. To my surprise I found a shorted diode! I figured it would be the capacitors (typical failure in switchers), however they looked OK (not leaking goo or puffed out) and the TV is not that old. The failed diode (sorry I forgot to get the circuit designation) is a HER-304 (near the middle of the board with the cathode lead soldered to a small silver colored heatsink). The HER-304 is a 300 Volt, 3.0 Amp High Efficiency Rectifier in a DO-27 package. The DO-27 package is cylinder shaped with axial leads, 0.375" (9.5mm) long and 0.197" (5mm) in diameter. This diode is for the 20 volt source and is connected to one of the secondaries of the transformer. On eBay I found a vendor selling five (5) HER-305 (400 Volt units, better than the original) for $1.25 plus $7.95 shipping. Also I checked most of the Capacitors with a Sencor Z-meter, all that were check were OK. If a Cap. had another in parallel with it I did not check the other. I removed (un-soldered) the heatsink from the board and then the diode from the heatsink. I put it all back together and Yes, under $10.00 in parts (actually a $0.25 part) and a little time and the TV works again! 24 July 2009.

WARNING!!! WARNING!!! WARNING!!! Switch mode power supplies such as this use and generate voltages at current levels that can be LETHAL!!! If you DO NOT know what you are doing, find someone that does or buy a new TV, it is not worth dying for!!!



Jun 26, 2009 | Polaroid FLM-3732 Television

3 Answers

My 32 inch polaroid tv just shut off


Repaired dead Polaroid TDA-03211C

I fixed a dead Polaroid TDA-03211C for my friends. When it failed it had just been turned on and then it went totally dead. This unit is a little over a year old and out of warranty. When I inspected the power supply it was continuously trying to start up but could not. With a Fluke meter you could see some of the DC output voltages rapidly rising and falling, but never getting to normal levels. I pulled the power supply thinking some of the capacitors were bad. Once I had the power supply out I used the Ohmmeter to check for any open or shorted diodes and/or transistors. To my surprise I found a shorted diode! I figured it would be the capacitors (typical failure in switchers), however they looked OK (not leaking goo or puffed out) and the TV is not that old. The failed diode (sorry I forgot to get the circuit designation) is a HER-304 (near the middle of the board with the cathode lead soldered to a small silver colored heatsink). The HER-304 is a 300 Volt, 3.0 Amp High Efficiency Rectifier in a DO-27 package. The DO-27 package is cylinder shaped with axial leads, 0.375" (9.5mm) long and 0.197" (5mm) in diameter. This diode is for the 20 volt source and is connected to one of the secondaries of the transformer. On eBay I found a vendor selling five (5) HER-305 (400 Volt units, better than the original) for $1.25 plus $7.95 shipping. Also I checked most of the Capacitors with a Sencor Z-meter, all that were check were OK. If a Cap. had another in parallel with it I did not check the other. I removed (un-soldered) the heatsink from the board and then the diode from the heatsink. I put it all back together and Yes, under $10.00 in parts (actually a $0.25 part) and a little time and the TV works again! 24 July 2009.

WARNING!!! WARNING!!! WARNING!!! Switch mode power supplies such as this use and generate voltages at current levels that can be LETHAL!!! If you DO NOT know what you are doing, find someone that does or buy a new TV, it is not worth dying for!!!



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1 Answer

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If this works Please donate Paypal Is12ok@aol.com anything helps Ive spent well over a weeks time and count less hours trying to figure out what was wrong.I have included some pics to try and help.
Thanks Z28r2fast4uc144496.jpg18b1844.jpg27931f3.jpgdb4f9c3.jpg f53556c.jpg 7eeee7c.jpg

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