Question about Polaroid FLM-3232 Television

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Not turning on, is dead

I Checked voltage on connector that feed main board & I got 24V. but none on the other connector that feed the display

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  • joseariasjc Jan 09, 2009

    the power indicator is not turning on any color.

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If you are capable of repairing electronics, there are 2 capacitiors in the FLM3232 sets that commonly leak and need to be repalced. They cause no picture symptoms but, the power indicator usually turns blue as normal. If you would like a photo of the 2 caps to check email me at tvtek@msn.com

Posted on Jan 09, 2009

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Vizio logo does not light up amber when plugged in but turns white when power button is pressed. no picture or sound. Big Transformer on power board makes a light buz sound when plugged in also.


1. When the TV powered up, please measure the 24V, 12V & 5V are there, if one voltage is missing, you may have a defective power supply.

2. If the power supply lost the 24V source, you may unplug the power supply connector on both the inverter board, then power it up, if you got the 24V back, you do have a defective inverter board, you may unplug them one at a time to locate the bad one.

3. If the power supply & inverters are good, you may have a defective main board. The common problem on the main board is that a voltage regulator is bad, you may use your millimeter to measure them 1 x 1. The out put voltage (on the heat sync) should be 1.25V + the control voltage (Pin 1), for example: if the control pin voltage is 0, the output voltage should be 1.25V, if the control voltage is 2.05V, the output voltage should be 3.3V, if one of them is out of range, replace it, you may find the part from Digikey Co. The part number printed on the regulator is AMC1117.


Good luck!

Apr 08, 2015 | Vizio VX42L 42 in. LCD TV

2 Answers

Polaroid FLM-3701 power


Unfortunately modern televisions and monitors are full of electronic semiconductors of which many are likely have got destroyed along with your original power supply during the storm. A nearby lightning strike will send high voltage spikes down aerial cables as well as through socket outlets.
If you have contents insurance you should be able to claim for a new monitor.

Nov 09, 2013 | Polaroid FLM-3701 Television

1 Answer

Getting 120 v to white plug where it first plugs into board should i have power reading at fuse?


yes after to the fuse you must have a reading of 120vac if none the fuse get busted. if the 120v is present then it will goes through the rectifier bridge diode and primary capacitor of the power supply board to have an stand by voltage at the power supply board. when you press the power button it will send signal voltage coming from the main board to turn on the power supply board. the you will need to get an output voltage at the power supply board of 5v dc, 12v-16vdc and 24v to turn on the all the circuit, the main board sound amplifier and the inverter board for screen back light.if you can get those supply the tv unit will not turn on.

Nov 09, 2012 | Vizio L37 Television

2 Answers

Vizio VT470M no picture, no sound, no backlight. Power supply board looks good all voltages appear correct (24V, 5V, and 3.7V) and no "bulged" capacitors . When I unplug unit for two hours, the...


Im having similar problem and with my limited knowledge of lcd tvs and the voltages ALL being good except the pwr on or sw on voltage from the main board to the power supply which tells it to switch everything on Im guessing that something is going wrong on the main board. In the condition where it freezes it (the power on V) which switches everything on i get varied voltages such as 2.5 or 3 or (the normal 5v) and then when nothing powers up (blank screen) i read 0v on pwr on voltage but all my other voltages are corect (24v to inverter, 12 v to main board, 5v, etc.) Im guessing from researching this is that there is in improper voltage somewhere in the main board circuit. I have been unable to find it so i may order another board and post back.

Jun 19, 2012 | Vizio VT470M 47 in. TV

1 Answer

Hi My Hitachi is in standby mode (not turning on - only have red standby light on). I have visually checked capacitors on 3 main boards and none appear to have expanded. Any ideas please?


First thing to do is measure the output voltages of the power board. You're looking for the one that provides standby power, usually +5V or +3.4 V and in some rare cases other voltages.

Don't know what it is for your TV, but it will sure be available on the power board if you see the red LED there.

Next you look to see if upon pressing power the main board signals to the power board to turn itself fully on, i.e. start generating the rest of the supply voltages.

There's a pin on the power board's connectors that is labelled "PS_ON" or just "ON" or something similar.

It should raise to +3V or so when you press the ON button.

For an example of a simple power board see this:
http://blog.coppelltvrepair.com/2010/09/how-to-test-power-supply-r0804-0901.html

If you do not receive that signal then the problem is in the main board.
if you receive that signal, but the power board does not generate the additional voltages that it outputs to the other boards then the problem is in there.
And if it wakes up and provides those voltages but the TV is still dead then the problem is in the main board, which usually needs to be replaced.

Hope this helps. If it does do not forget to rate it :-)

if you need more help - supposedly paid though - feel free to contact us.

www.coppelltvrepair.com

Oct 18, 2010 | Hitachi 26LD6600 26 in. HD-Ready LCD...

1 Answer

VO32L, VO37L had bad caps on the powerboard which was clipping the 12v, it was flashing 24V out. I repaired all the bad caps, and now it lights but nothing else. Pushing source, or menu has no effect....


Ur main Tuner board is dead also,must be changed to get this tv fix,because the power board when it had bad caps,it send to much voltage it also kill the Tuner board.This happen in some cases,it not only the power board it dead,but their over flow of voltages kill the Tuner board too.

May 22, 2010 | Vizio L32 32 in. LCD HDTV

3 Answers

I have a NS-LCD37-09 tv. No picture or backlight


Your main board is faulty. I've done several of these but haven't been able to figure out which component is actually bad these yet. I've simply had to replace the board itself, and it fixes it every time. One thing you can do to get your backlights to come on (and so you know I'm not Jive'n you) Is unplug the three wire bundle that spans from power supply to main board. This will usually make the backlights fire up. I even had one that after I left it that way for a minute (with the backlight on) it suddenly started working again! But this was short lived. :-(
One time I even tried recapping the entire main to see it that would fix it. It did not. I think it might be something to do with the small chip labeled SL37HA37. It's a 16 legged bastard near the 3-wire plug I told you to pull. It's that or possibly the bigger IC near it that has a heat sink on it. The ball grid array solder joints may be faulty. Just guesses, if any smart guys out there figure this one out, be sure to tell the rest of us please!
Thanks, Chris Boise LCD www.boiselcd.com

Feb 09, 2010 | Insignia NS-LCD37 37 in. LCD TV

2 Answers

37 inch vizio has black screen. the vizio display


L37HDTV10A THE TV ON NO VIDEO NO MENU SAON OKEY

Jan 16, 2010 | Vizio L37 Television

1 Answer

Sound is good but no picture


If there is no backlight (check it in a dark room - if there's a backlight the display will be emitting light, albiet still all dark) then you're looking to replace backlight inverter (or two of them, if it's master/slave) OR the power board. To know which of the two, measure the voltage on the cable that comes from the power supply to the LCD backlight inverter board - it has lots of cables but most of them are split in 2 groups - ground and positive usually 24V. It's fairly easy to see which are which, especially on the power board.
So if there's 24V there then it's the inverter(s) and if there's nothing then it's likely the power board; it's a little tricky, though, because the main board may turn off the backlight power - so make sure you check the voltage when turning the TV on from off and watching the read.

If there *is* backlight then you;re looking at replacing the tcon board or, less likely, the main board or, least likely, the cable between them.

Please rate my response if it helps.

Nov 06, 2009 | Vizio VO42L 42 in. LCD TV

1 Answer

Polaroid " 3211 TLXB red light no power up?Ive checked for Bad Caps,on the main power supply.I found none,that were swollen or leaking.It looks good.I checked volltage out to volltage inverter.all the out...


hi remove the supply to the main board & inverter, now power your psu if give you this same above voltages , go for new power supply unit. change your power

Oct 12, 2008 | Polaroid 3211TLXB 32 in. LCD Television

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