lamp tester

[nbdy]

got one board form sampo (samsung) monitor witch i would like to use
for testing lamps in monitors, but i don't have the shematics and cann not
find witch wire is (from 4 wires) the one for power on ....

Heard that 12VDC is enugh to supply this board ...

any one could help

thx

[popeye]

Re: lamp tester

You can get a ccfl tester from ebay for very little money no need for a chassis.

[lookimback]

Re: lamp tester

What's the board numbers?

[stj]

Re: lamp tester

nobody sells a *real* lamp tester, just invertors that will light them up.
what you really need is an invertor and an ameter inline to see how much current the tube is using.

because as a tube ages, it uses more current, and in a tv/monitor they will be detected as drawing too much current and considered faulty even though they will still light up.

[Porto]

Re: lamp tester

I recently bought this CCFL tester, works great.
I feed it 12v to light up the lamp totally.

You can use your DMM in between to measure the flowing current.


http://nl.aliexpress.com/item/Free-S...330673882.html

[stj]

Re: lamp tester

yes, the DMM is good.
if your testing a lot, it may be better to get one of those cheap chinese led ameter modules from ebay and case it all together.

[nbdy]

Re: lamp tester

What's the board numbers?

the board is

ypwbgl470idg

thx

[budm]

Re: lamp tester

Current measurement. Lamp's current is around 7~10mA AC.