My Monitor is Fuzzy

[IBdaMac]

My Hitachi CM721F that I bought a few years back seems to look like it's out of focus. It's not around anything that would cause interference or anything. I just want to know if it's definitely the monitor, because I think I've seen it come in clear for a minute or two at one point...I don't know.

Anyway, anyone have ideas on how to get the blur to go away?

 

[LiLithTecH]

It can be one of several things.

Does your monitor cable have a Ferrite core on both ends?
(a large plastic bulge before the vga connectors)

If so, then the likely cause is capacitors (1 uF electrolytic capacitors - both polarized and bipolars) on the CRT board.

Hitachi no longer sells CRT's in the US so finding service center is difficult (the monitor
should have come with a 3 year warranty)

 

[IBdaMac]

The monitor does have the Ferrite core on both ends of the cable. The monitor is a little over 3 years old I believe. It only started happening a few weeks ago and I don't think anything has changed. Is there anything else that could cause it? or is the monitor shot.

Thanks for the answer LiLithTecH, you seem to know your stuff. I just don't want that to be the answer 🙂 I want someone to say "oh, all you have to do is press this button, or smack the monitor'

 

[montag451]

All you have to do is press the button and give it a smack on the side.

OK?

 

[IBdaMac]

dude, you're a genius...it worked





and by 'it worked' I mean it didn't work

 

[IBdaMac]

basically...is there any driver settings that would cause it to be blurry? Like...maybe alter the refresh rate, or something funky like that...I don't know

 

[LiLithTecH]

Unfortunately there NO settings to mess with to get rid of the problem.🙁

 

[Appledrop]

i wouldn't recommend opening it up either 😉 Time for a new monitor im afraid..