this monitor started to develop vertical lines down the middle of the
screen and sometimes everything is scrunched up in the middle as well.
After some reading, i understand that this could be a problem of dry
joints. I have taken the back off the monitor but i couldnt figure out
how to get the pcb out for inspection, can someone give me some
instructions of how to get the board out and which area i should be
looking at?

RC

R Chan wrote:
After some reading, i understand that this could be a problem of dry
joints.

What is a "dry joint'?

On Wed, 29 Jun 2005 19:54:34 GMT, "Travis Jordan"
wrote:

R Chan wrote:
After some reading, i understand that this could be a problem of dry
joints.

What is a "dry joint'?


Bad solder connection...

Tom

"R Chan" ha scritto nel messaggio
...
this monitor started to develop vertical lines down the middle of the
screen and sometimes everything is scrunched up in the middle as well.
After some reading, i understand that this could be a problem of dry
joints. I have taken the back off the monitor but i couldnt figure out
how to get the pcb out for inspection, can someone give me some
instructions of how to get the board out and which area i should be
looking at?

You "must" resolder all big connections... i.e. on the HOT, on the EHT
Transformer, on the PSU and on the vertical deflection area...
if didn't fix it, take an hairdryer and flow hot air into the various
sections of the monitor... if the monitor starts to develop more lines, you
*must* change all electrolytic capacitors in that area, they have dryed out
in eight years !!!! If you didn't solve, change the vertical I.C. ... for
more assistence please reply !!!

I.

On Thu, 30 Jun 2005 09:00:03 GMT, "Inty"
wrote:


"R Chan" ha scritto nel messaggio
...
this monitor started to develop vertical lines down the middle of the
screen and sometimes everything is scrunched up in the middle as well.
After some reading, i understand that this could be a problem of dry
joints. I have taken the back off the monitor but i couldnt figure out
how to get the pcb out for inspection, can someone give me some
instructions of how to get the board out and which area i should be
looking at?

You "must" resolder all big connections... i.e. on the HOT, on the EHT
Transformer, on the PSU and on the vertical deflection area...
if didn't fix it, take an hairdryer and flow hot air into the various
sections of the monitor... if the monitor starts to develop more lines, you
*must* change all electrolytic capacitors in that area, they have dryed out
in eight years !!!! If you didn't solve, change the vertical I.C. ... for
more assistence please reply !!!

I.


thank you for your reply, my problem is that i couldnt get to the
underside of the board. do i have to turn the monitor upside down and
remove the front of the casing as well? i have removed the back and
the metal casing. I am lost as to how i should proceed from there. any
clues?

"R Chan" ha scritto nel messaggio
...

thank you for your reply, my problem is that i couldnt get to the
underside of the board. do i have to turn the monitor upside down and
remove the front of the casing as well? i have removed the back and
the metal casing. I am lost as to how i should proceed from there. any
clues?

Can you make a photo of this monitor and host on TinyPic.com ?

I.

On Thu, 30 Jun 2005 15:20:26 GMT, "Inty"
wrote:


"R Chan" ha scritto nel messaggio
...

thank you for your reply, my problem is that i couldnt get to the
underside of the board. do i have to turn the monitor upside down and
remove the front of the casing as well? i have removed the back and
the metal casing. I am lost as to how i should proceed from there. any
clues?

Can you make a photo of this monitor and host on TinyPic.com ?

I.


you can find them here
http://www.sanseric.pwp.blueyonder.co.uk/iiyama.html

thx

"R Chan" ha scritto nel messaggio
...

you can find them here
http://www.sanseric.pwp.blueyonder.co.uk/iiyama.html

It seems that the alluminium shielding is retained by 5 nuts !!! Remove them
from the up of the board. Then free the shielding by carefully extracting it
!

I.