Samsung T220HD Recap

[retiredcaps]

Re: Samsung T220HD Recap

So please confirm that if you hookup a working computer to this monitor, do you see any picture for any time at all?

[brillman]

Re: Samsung T220HD Recap

I will give it another shot.

[brillman]

Re: Samsung T220HD Recap

I see a very dark shadow of my desktop. I can barely see it but I can make out what is trying to be displayed. It did not flash the correct view of the desktop at any time.

UPDATE: I let the monitor remain plugged in for 10 minutes and then moved the mouse, the desktop flashed for a half second.

UPDATE 2: Same thing after letting sit for another 10 minutes.

[retiredcaps]

Re: Samsung T220HD Recap

Try the ccfl tests at section 5

https://www.badcaps.net/forum/showpo...6&postcount=20

[brillman]

Re: Samsung T220HD Recap

Try the ccfl tests at section 5

https://www.badcaps.net/forum/showpo...6&postcount=20

Just so I have this right, when the procedure says this:

a) TURN POWER OFF and unplug the monitor and wait 1 minute
b) disconnect all CCFLs expect #1
c) plug in monitor and turn monitor on - note if "2 seconds to black" occurs

The connections they are talking about are the pink and blue wires that plug in on the side under the metal shield?

[retiredcaps]

Re: Samsung T220HD Recap

The connections they are talking about are the pink and blue wires that plug in on the side under the metal shield?

Yes. We are trying to see if any of the ccfls are completely broken. If yes, one of them will not light up.

[brillman]

Re: Samsung T220HD Recap

Should I be able to see without disassembling any more than I have? I have done nothing with the panel assembly so far.

[retiredcaps]

Re: Samsung T220HD Recap

Should I be able to see without disassembling any more than I have? I have done nothing with the panel assembly so far.

If you do the test in a dark room, you should be able to see the ccfl lamp light or not. All you have to do is just unplug the connectors to the ccfl.

[brillman]

Re: Samsung T220HD Recap

If you do the test in a dark room, you should be able to see the ccfl lamp light or not. All you have to do is just unplug the connectors to the ccfl.

Been trying this a past few days and I can't get my monitor to stay on. Is there a trick to it?

[retiredcaps]

Re: Samsung T220HD Recap

It is not meant to stay on, you are only looking to see if each ccfl lights up or not. Please re-read section 5 as I think you are not the idea of the tests.

[brillman]

Re: Samsung T220HD Recap

It's been a month, my apologies, considering the effort you've put in to help me. I am still hoping to resolve this. I will work on it tonight.

[brillman]

Re: Samsung T220HD Recap

Alright I finally was able to get some time to work on this. The monitor will only turn on if all 4 lamp wires are plugged in. Is this typical?

[brillman]

Re: Samsung T220HD Recap

Well, no worries if we want to ditch this thread, but one final question if anyone cares to chime in... Is it even worth replacing the CCFLs on a LCD Monitor that might only be worth $100?

[brillman]

Re: Samsung T220HD Recap

Checked ebay for the price of a brand new panel, it is $100+, so I'm going to go for a $30 CCFL replacement. If that doesn't work, I'll scrap it.

[selldoor]

Re: Samsung T220HD Recap

Alright I finally was able to get some time to work on this. The monitor will only turn on if all 4 lamp wires are plugged in. Is this typical?

What do you mean -Test lamps? Yes you do have to have 4 connected
to do the test

[brillman]

Re: Samsung T220HD Recap

I was attempting to see if any one of the CCFLs were bad by plugging in one wire at a time and powering on the display as described in Section 5 of this URL:
https://www.badcaps.net/forum/showpo...6&postcount=20

The display would not power, unless all 4 lamp connectors were connected to the display.

I do not have any test lamps at this time.

[selldoor]

Re: Samsung T220HD Recap

The test is only a flash test for each lamp

If one of the CCFLs does not light up, it is likely physically damaged (cracked) or the wiring is completely broken to it. Take out that CCFL and inspect it. If all 4 CCFLs do show "2 seconds to black", one or more can still be bad. This test only discovers a completely dead CCFL or completely broken wiring.

It will still go two secs to black but will reveal a completely dud bulb.

Some members have been able to narrow it down using a "spare" bulb made from a ccfl.
https://www.badcaps.net/forum/showthread.php?t=19987

[tom66]

Re: Samsung T220HD Recap

Got any energy saving bulbs that have died prematurely?
https://www.badcaps.net/forum/showthread.php?t=19987

I have a small collection, and the local discount shop sells a 7W CFL for 79p.

[brillman]

Re: Samsung T220HD Recap

So, sounds like I should open it up regardless, inspect the bulbs. Resolder broken wire connections and replace broken bulbs.

I haven't seen any good step by step instructions for my LCD panel, so I guess I will be winging it! It's a Chi Mei M220Z1-L03.

[brillman]

Re: Samsung T220HD Recap

Opened it up and results are inconclusive at this point.

Does the 2nd from the bottom look burnt out to you guys?