Before stating the problem, I know the danger related to CRT and it's better to replace old CRT monitor with newest Led LCD.
And I have little knowledge in troubleshooting CRT displays.
But I just want to repair this.
This CRT Monitor is not used for almost 2 year and started using 2 weeks before and it's working fine till yesterday.
Now the problem is at first power on with VGA cable not connected it's normal that is signal not found or cable not connected image is moving all over the screen.
And if VGA cable is connected to PC the image is showing which is shifted to right side(always like that) and I can make it center using monitor control buttons on side, after that it's working for almost 45 to 60 minutes without problem and after that the screen goes dark for some seconds and comeback with left and right side squeezed to inside and a small portion of top and bottom out of screen or a very small image at the screen center with warm colour or blank screen.
I have opened the monitor and after checking I found that most of electrolytic capacitors are bulged or with high ESR so I changed most of the capacitors with same value also checked the transistors(HOT etc) and still no change the same things happening.
what might be the problem?
Anybody Any Idea?
One more thing after this if we turn off monitor using on/off button of monitor its turning off but no Turn on To make it on i need to unplug the main AC cord for 10 to 15 seconds and monitor ON with same condition that is shifted to right etc .
And I have little knowledge in troubleshooting CRT displays.
But I just want to repair this.
This CRT Monitor is not used for almost 2 year and started using 2 weeks before and it's working fine till yesterday.
Now the problem is at first power on with VGA cable not connected it's normal that is signal not found or cable not connected image is moving all over the screen.
And if VGA cable is connected to PC the image is showing which is shifted to right side(always like that) and I can make it center using monitor control buttons on side, after that it's working for almost 45 to 60 minutes without problem and after that the screen goes dark for some seconds and comeback with left and right side squeezed to inside and a small portion of top and bottom out of screen or a very small image at the screen center with warm colour or blank screen.
I have opened the monitor and after checking I found that most of electrolytic capacitors are bulged or with high ESR so I changed most of the capacitors with same value also checked the transistors(HOT etc) and still no change the same things happening.
what might be the problem?
Anybody Any Idea?
One more thing after this if we turn off monitor using on/off button of monitor its turning off but no Turn on To make it on i need to unplug the main AC cord for 10 to 15 seconds and monitor ON with same condition that is shifted to right etc .
