CRT screen completely black

ynwia · Guest

Hello, I have a NOKIA 445pro monitor. I havent used it for 6 months and its screen now is completely black as if no power supply at all.

The small LED glows green, which indicates the monitor should be fine. However, it flashes very quickly which may be a sign of problem. Anyone has any idea what could be wrong?

Thanks

Guest · Posted: Wed Nov 02, 2005 8:22 pm Post subject:

Too vague.
Do you have secondary power supply voltages?
Do you have and B+ on the collector of the horizontal output transistor?
When you attempt to power it up, do you get any pulses on any secondary of the IHVT?
If you do, is it correct or is it "tore up"?
Etc., etc., etc.,.............

Guest · Posted: Wed Jan 25, 2006 10:40 pm Post subject:

[flaming] My nokia 445 pro does the same. I have no more knowledge from electronics than from secondary school physics class , OK ?! >> If you do thats good for you. (if you think you cannot/do not want to help me, then dont) [/flaming] Evil or Very Mad

I have seen that there are many people complaining in forums that their nokia 445 died without any warning signs.
It does not show any picture, when i press menu then it remains green for a litle (half a second) and then blinks on. I have tried to enter service menu aswell , led stays green for a litle then blinks on.
i know this blinking led without picture could mean about anything in the world but ..
Is there any typical fault in these monitors that can be fixed? If there is then maybe i will get to know something about electronics aswell. Thank you.