Acerview 56e going blurry

[Baz]

Hi there all,
I have an Acerview 56e monitor and after 20-30 min the screen starts to go
blurry...any ideas anyone?



thankyou
Basil
basil@net2000.com.au

 

[Rod Speed]

Baz <basil@net2000.com.au> wrote in message
news:3f86b1f7$0$95047$c30e37c6@lon-reader.news.telstra.net...

I have an Acerview 56e monitor and after 20-30 min
the screen starts to go blurry...any ideas anyone?

Most likely its a warmup fault in the focus voltage area.

You could try adjusting the focus pot in case its just a dirty pot, but
BE CAREFUL, you can kill yourself inside a monitor with the case off.

 

[KLR]

On Sat, 11 Oct 2003 04:25:02 +1000, "Rod Speed" <rod_speed@yahoo.com>
wrote:

Baz <basil@net2000.com.au> wrote in message
news:3f86b1f7$0$95047$c30e37c6@lon-reader.news.telstra.net...

I have an Acerview 56e monitor and after 20-30 min
the screen starts to go blurry...any ideas anyone?

Most likely its a warmup fault in the focus voltage area.

You could try adjusting the focus pot in case its just a dirty pot, but
BE CAREFUL, you can kill yourself inside a monitor with the case off.


Leave it on for 30 or so minutes and then adjust the focus. Its

possible too if its an older monitor that the tube is dying -
specially if the picture quality generally isn't that good. (ie: lack
of brightness etc). turn the pot back and forth a few times too as
this might help "clean" the wiper and carbon area.

Most monitors made in recent years the focus (and screen) pot and

resistors are sealed in as part of the EHT assembly and you can't
clean pot contacts, replace parts etc.

Cleaning of the spark gap for the focus circuit on the neck board may

possibly help too. These can get dirt and crud in them - and while
its not likely to be the problem - its worth a try. MAny years ago I
did see one of these so filthy that it did occasionaly arc across
quite loudly.