Inverter tester using old CFL - Page 3

**tn245** · 03-11-2014, 12:03 PM

Can I use this method with a CFL to test this inverter? It's from a 42 inch TV. There's one transformer driving all the bulbs. Would I just hook one CFL up between the two inverter outputs?

**multimeter** · 03-11-2014, 01:08 PM

Quote:

Originally Posted by Measuray

Would a device like this workout more better?

http://www.lcd-pdparts.com/ViewDetai...ProductID=1813

CCFL & LCD TV Monitor Backlight Tester
VIP Price:$16.30

thats for testing ccfl tubes,the bulbs in question will test the inverter for soundness

farman · 05-12-2014, 04:17 PM

thanksssssssssssssssss

**budm** · 05-14-2014, 10:42 AM

Another tips for using CFL for testing:
http://www.badcaps.net/forum/showthr...x+dx-40l261a12

**Agent24** · 11-10-2014, 08:06 PM

Do you know if these bulbs cause any more stress to the inverter than the correct CCFLs?

I ask because I had the idea to use this to test a couple of monitors which shutdown after 10-20 minutes rather than a few seconds. Would it be OK to run the monitor with these CFLs for that long?

**goontron** · 11-10-2014, 08:35 PM

Quote:

Originally Posted by Agent24

Do you know if these bulbs cause any more stress to the inverter than the correct CCFLs?

I ask because I had the idea to use this to test a couple of monitors which shutdown after 10-20 minutes rather than a few seconds. Would it be OK to run the monitor with these CFLs for that long?

from my studies on arc tubes you should be fine. just don't expect much lite out of that CFL tube.

**Agent24** · 11-10-2014, 10:46 PM

Quote:

Originally Posted by goontron

from my studies on arc tubes you should be fine. just don't expect much lite out of that CFL tube.

Do you mean "Light" or was that a typo of "Life"? And if the latter - why?

**goontron** · 11-10-2014, 10:57 PM

Quote:

Originally Posted by Agent24

Do you mean "Light" or was that a typo of "Life"? And if the latter - why?

that was an auto carrot of light, sorry.

**Agent24** · 11-10-2014, 11:14 PM

Quote:

Originally Posted by goontron

that was an auto carrot of light, sorry.

No worries, might give it a go tomorrow then.

**mmartell** · 11-10-2014, 11:14 PM

Quote:

Originally Posted by goontron

that was an auto carrot of light, sorry.

Lol too funny.

**goontron** · 11-10-2014, 11:46 PM

Quote:

Originally Posted by mmartell

Lol too funny.

sometimes i wonder if the google devs are screwing with people.

vusi · 01-08-2015, 04:46 AM

Quote:

Originally Posted by budm

Do not throw away those broken CFL (14Watts or smaller), you can use them for testing your LCD monitor inverter circuits without buying spare lamps for testing.
You can solder the wires directly to the connectors on the inverter board or you can get the correct connectors but then you have to have more than one type.
I tested it out on my lamp tester board as you can see in the pictures.
I open up the lamp assembly using small hack saw just enough for me to crack it open, just be real careful.
Enjoy!

great stuff,

**tom66** · 02-18-2015, 04:57 AM

Useful info - stickied

lalin · 06-16-2015, 09:07 AM

I guess you can use the same method on an LCD TV but there are many more lamps, is that practical?

**SteveNielsen** · 06-16-2015, 09:38 AM

Yes, that is the point of the thread isn't it? It is for testing inverter outputs, not replacing bad tubes.

2014Sorentolover · 08-30-2015, 04:56 AM

Great idea, Thank you.

bruvinsk · 11-02-2015, 02:54 PM

Do all these techniques will apply to testing inverter for 40" TV or I need to use different bulbs?

Thanks

waldoalvarez00 · 12-25-2015, 07:15 PM

Quote:

Originally Posted by Measuray

Would a device like this workout more better?

http://www.lcd-pdparts.com/ViewDetai...ProductID=1813

CCFL & LCD TV Monitor Backlight Tester
VIP Price:$16.30

Seems so, but i think an old monitor inverter could do the same.

orangecomputech · 01-04-2016, 08:05 AM

Thanks man well good information ........

Roman123 · 02-10-2016, 05:23 AM

Good idea todai check

05-12-2014, 04:17 PM	#43
farman Banned Join Date: Aug 2013 City & State: madeena My Country: ksa I'm a: Knowledge Seeker Posts: 2	Re: Inverter tester using old CFL thanksssssssssssssssss

05-14-2014, 10:42 AM	#44
budm Badcaps Veteran Join Date: Feb 2010 City & State: S.F. Bay area My Country: USA Line Voltage: 120V 60Hz I'm a: Knowledge Seeker Posts: 36,611	Re: Inverter tester using old CFL Another tips for using CFL for testing: http://www.badcaps.net/forum/showthr...x+dx-40l261a12 __________________ Never stop learning Basic LCD TV and Monitor troubleshooting guides. http://www.badcaps.net/forum/showthr...956#post305956 Voltage Regulator (LDO) testing: http://www.badcaps.net/forum/showthr...999#post300999 Inverter testing using old CFL: http://www.badcaps.net/forum/showthr...er+testing+cfl Tear down pictures : Hit the ">" Show Albums and stories" on the left side http://s807.photobucket.com/user/budm/library/ TV Factory reset codes listing: http://www.badcaps.net/forum/showthread.php?t=24809

11-10-2014, 08:06 PM	#45
Agent24 I see dead caps Join Date: Oct 2007 City & State: Hiding inside a plated-through hole My Country: New Zealand Line Voltage: 230VAC 50Hz I'm a: Hobbyist Tech Posts: 4,634	Re: Inverter tester using old CFL Do you know if these bulbs cause any more stress to the inverter than the correct CCFLs? I ask because I had the idea to use this to test a couple of monitors which shutdown after 10-20 minutes rather than a few seconds. Would it be OK to run the monitor with these CFLs for that long? __________________ "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous" -David VanHorn

02-18-2015, 04:57 AM	#53
tom66 EVs Rule Join Date: Apr 2011 City & State: Leeds My Country: UK Line Voltage: 230Vac 50Hz I'm a: Professional Tech Posts: 32,374	Re: Inverter tester using old CFL Useful info - stickied __________________ Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead! Free service manuals: http://www.toms-service-manuals.com/ -- 72 LED/LCD TVs, 5 monitors, 28 plasma TVs, and 2 AVR 6.1 amplifiers fixed! -- I repair Pioneer 9G Plasma Main Boards & KRP-M01 Media Receivers (PM me for info) 2 Pioneer KURO 9G, 12 Panasonic LCD/Plasma, 1 Sony LCD, 1 NEC Plasma, 2 Yamaha HTS, 5 Sharp LCDs, 5 Toshiba LCDs, 7 Philips Plasma/LCD, 1 Hitachi Plasma, 11 LG LCD/Plasma, 18 Samsung LED/LCD/Plasma, 1 Thomson Plasma, 1 Atec LCD, 1 Hanspree LCD, 1 Xerox LCD, 1 Harwa LCD, 2 Proview LCD, 2 Hyundai LCD, 1 "Onn" LCD, 1 Grundig LCD, 1 Dell LCD, 1 iiyama LCD, 1 Acer LED, 1 Logik LCD, 1 Baird (China) LCD, 6 Bush LCDs, 22 Vestel LCDs (Best->Worst)

06-16-2015, 09:07 AM	#54
lalin M Join Date: Apr 2015 City & State: ny My Country: us I'm a: Knowledge Seeker Posts: 11	Re: Inverter tester using old CFL I guess you can use the same method on an LCD TV but there are many more lamps, is that practical?

06-16-2015, 09:38 AM	#55
SteveNielsen Retired Tech Join Date: Jun 2012 City & State: Newport, OR My Country: USA Line Voltage: 120VAC 60Hz I'm a: Hobbyist Tech Posts: 2,306	Re: Inverter tester using old CFL Yes, that is the point of the thread isn't it? It is for testing inverter outputs, not replacing bad tubes.

08-30-2015, 04:56 AM	#56
2014Sorentolover New Member Join Date: Aug 2015 City & State: Alexandria My Country: Egypt I'm a: Knowledge Seeker Posts: 1	Re: Inverter tester using old CFL Great idea, Thank you.

11-02-2015, 02:54 PM	#57
bruvinsk New Member Join Date: Nov 2015 City & State: Toronto/Ontario My Country: Canada I'm a: Knowledge Seeker Posts: 1	Re: Inverter tester using old CFL Do all these techniques will apply to testing inverter for 40" TV or I need to use different bulbs? Thanks

01-04-2016, 08:05 AM	#59
orangecomputech New Member Join Date: Jan 2016 City & State: tamilnadu My Country: india I'm a: Knowledge Seeker Posts: 7	Re: Inverter tester using old CFL Thanks man well good information ........

02-10-2016, 05:23 AM	#60
Roman123 New Member Join Date: Oct 2015 City & State: Gryazi My Country: RUSSIA I'm a: Knowledge Seeker Posts: 2	Re: Inverter tester using old CFL Good idea todai check

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