Chimei 221D, very faint screen image.

[slothzen]

Hi, first post here. Just want to say this looks like a kick-ass community, thanks for existing!

On to my issue...

I have a desktop Chimei CMV 221D monitor here that's giving me problems.

Here are its symptoms: When turning on it blinks grey for a moment before displaying a very very dark and faint image of my desktop. If I try to turn it on and off for some time, ~20 minutes, eventually it'll display a perfectly fine picture, incrimentaly getting brighter until it does.

Any ideas?

[selldoor]

Re: Chimei 221D, very faint screen image.

Welcome to the forum- Please update the mains voltage in your profile.
We can help a lot more if you please post good clear pictures of the whole chassis, and then pictures of each board, front and back and close up of connectors, (max resolution 2000x2000 and 2MB) using the manage attachments button, which is found by clicking "go advanced" under quick reply.

Please do not post inline and offsite as they slow down the loading of pages.

Example
https://www.badcaps.net/forum/attach...1&d=1290283049

It will be useful if you can say a bit about yourself - skills tools etc.

It sounds like it could be failing capacitors- they often work a bit better when they are warm. Once you get it to bits one test you can do is to heat some of the capacitors with hair dryer. However it could be other problems
- the pictures will help.


Did you read this https://www.badcaps.net/forum/showthread.php?t=9734 starts off virtually the same as yours.

[FIXITNOW]

Re: Chimei 221D, very faint screen image.

replace these caps use only low esr versions
1 x 22uF - 50V Brown 5mm x 12mm x 2mm
3 x 220uF - 25V Black 8mm x 12.5mm x 3.5mm
1 x 330uF - 25V Green 8mm x 14.75mm x 3.5mm
1 x 1000uF - 10V Green 10mm x 16.5mm x 5mm
2 x 1000uF - 25V Black 10mm x 21mm x 5mm
1 x 2200uF - 10V Black 13mm x 20mm x 5mm