Question about Insignia IS-LCDTV32 32 in. Television

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Easy Question It has been explained to me how to change out the cap or power supply for me set, however, for the life of me I cannot figure out how to remove the back panel. I have been told that I do not have to remove the entire back. Am I missing something?

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Well you are maybe and you'er not... Only the upper panel area needs to be removed. It may be a little stubborn after the screws are removed but that's all that needs to e removed...
Bill

Posted on Apr 08, 2008

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6ya6ya
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Posted on Jan 02, 2017

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My tv has no power, when plugged in the green light flashes constantly about once per second, pressing the power button has no effect. The only voltage coming from the power supply is 5v. Unplugging the...


It sounds like the standby 5vdc is working but the main board is not sending the PS_ON signal to turn on the 12vdc/24vdc power supply section and the BL_ON for the inverter board. I would look at the sch. to see if you have the PS_ON (3.3~5VDC) to turn on the power supply section first. I have a feeling you are having the main board problem.

All the LCD TV's operate just about the same as explain in my guide.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Parts: www.interliquidparts.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.

Aug 12, 2011 | Sharp Aquos LC37D44U 37 in. LCD HDTV

1 Answer

No sound and no picture.Power comes on with red light changes to green. Replace caps (15) on power supply.


You need to check and see if all the control voltages (Power supply on) and DC output voltages are present. PS pin out: http://www.fspgroupusa.com/download/specs/FSP271-5F01_DIA.pdf

Please read my guide to see how LCD TV works.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

Mar 16, 2011 | ViewSonic N3752w 37 in. LCD TV

1 Answer

Q: Red standby light was flashing red for a few days. Now we can't get any power at all. lg model 32lc2du-u3 A: Power supply problem.... I can explain to you how to fix via email with detailed...


First: service manuals http://elektrotanya.com/?q=showresult&megnev=lg&megnev2=32lc2du-u3%20&kategoria=tv&kat2=all
Second: most failure in power supply module is due to bad caps with domed top, you should inspect for that first, main AC fuse for main power.
Did you take out or look at the power supply yet?
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Please leave rating if it helps.

Mar 05, 2011 | LG Televison & Video

1 Answer

I have a samsung 731b 17' that works, but I have a samsung 19", 250bw with power supply problem, can I change out the power supply unit and put into the other. I have three 19" lcd.


No, the 19" uses more power to drive the lamps, and the power supply will not be the same to interface with the logic board either.
What kind of problem you have with the 250bw?

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Jan 30, 2011 | Samsung SyncMaster 731B 17" LCD Monitor

1 Answer

Dell 1800fq LCDcomputer monitor not coming up


More likely to have shorted out SWITCH MODE POWER SUPPLY IC, very common in this power supply. You can replace the power supply or buy a repair kit for this power supply on EBAY.
You should at least finr out if your are getting the 12vdc at the power supply output connector.
Replacement power supply module:
http://lcdrepair.us/1800fp-power.html

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Jan 05, 2011 | Dell UltraSharp 1800FP 18.1" LCD Flat...

1 Answer

I have a samsung ln40a550 LCD and had a problem with it , the TV wouldn't turn on. So i did some research and found out that samsung had some crappy capacitors, so i called them and they came and replaced...


I would think if SAMSUNG came out to replace the bad caps and the TV is still not working right, I would think they should fix it correctly, may be the person did not do the good quality jobs and left. What does SAMSUNG say about this? The bad power supply could have unstable DC and could have damaged the other boards inside the set. You will need to inspect the power supply yourself, look to see the soldering works are good and everythings are put back together correctly with correct polarity.
Then you need to verify all the DC output voltages before going any further, it will not be an easy job.
Learn more here;

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Replacement boards:
http://www.shopjimmy.com/catalogsearch/result/index/?q=Samsung+LN40A550&stock=all.

Dec 11, 2010 | Samsung LN40A550 LCD TV

2 Answers

TV will not turn on.It is plugged in .Is there an internal fuse . I had a power outage while the Tv was on.The power button directly on the TV will not work either.


Check the power source?Yes,near the edges the power supply board there is a fuse.That the board,where the power a/c cord plug into it.But new modern digital devices,never blown fuse as easy as analog devices though.Power supply board,have shorted parts in it some where and now the board is dead.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Dec 09, 2010 | Sony KDF-E55A20 55 in. LCD Television

3 Answers

Clicking noise will not power on, changed 2 blown capacitors. May need eeprom re-set sounds complicated?. many thanks


IF THETWO BLOWN CAPS WERE IN YOUR POWER SUPPLY REPLSCE THE POWER SUPPLY SOMETIMES EVEN WHEN WE CHANGE THE CAP
THE POWER SUPPLY IS BAD

Jun 03, 2010 | Samsung LE40R74BDX 40 in. LCD Television

1 Answer

Tv will not come on , some guy came out and said its the low voltage pwr supply, whats the cost of the supply, what does it look like and is it easy to replace if you know how to handle a soldering gun, tv...


just take your tv to a near w/shop, and ask a tech, to check components, on the power supply.
components like transistors, diodes, ic if any on thepower supply,all eletrolitic capacitors values, and change all changed value capacitors. because if capacitors change values they change oscillation hence increasing current output.
if you do that your set will come back to life again.

Apr 29, 2009 | Sharp 27K-S180 27" TV

1 Answer

Help - please explain


these are capacitors. The c18 and c36 are the location of the capacitors on the power supply board. The 2200uf is the capacitance of the capacitor and the 10v in the voltage the capacitor can handle. You should be able to purchase these at radio shack or most electronic supply stores. However to replace them you will need to know how to desolder the old caps and resolder in the new ones. I just got through repairing one of these units and to extend the life I used a higher voltage value cap. If you need anymore help or can't find the caps feel free to contact me philbertduncan@yahoo.com

Jul 01, 2008 | LG Electronics LRM-519 Digital Media...

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