Hi guys,
I went over the posts regarding this monitor
The issue started about a month ago, when i turn the monitor on it would not display a pictutre but started to go through the inputs (Auto search)
When the correct input is found DVI,i can see a picture but every few seconds the picture goes on and off, and the orange led turns off and then off at the same time, this behavior can go on for some time and then it will cycle through the inputs again.
I have replaced some of the caps since i could not find the other ones at my local electronics store, the original caps do not show any signs of bulging, i have also tested them with a multi meter out of circuit and the measure fine.
i have also replaced the transformer TM-09175 although the old one seems to be fine as well, the legs measure around 950OHM and on the new one around 1000 ohm.
After replacing the transformer and caps, the monitor started working ok, but after an hour or two i started hearing a buzzing sound from the back and an hour after the old behavior came back.
I have also tested the caps C104 and C103 and the measure 2 nF, i have looked in the service manual and they show to be
....4
C103
2203-000888
C-CER,CHIP;4.7nF,10%,50V,X7R,TP,1608
1
S.A
....4
C104
2203-000888
C-CER,CHIP;4.7nF,10%,50V,X7R,TP,1608
1
S.A
Can anyone offer any advice on what to look for next?
Also the small caps on near the output connectors
C301-C305 i tried measuring them in circuit but my fluke shows OL, from the specs they seem to be less then 1nF so they are out of range for this Fluke.
I can order a whole power board from Ebay, but first of all i am looking forward to fixing it myself and also, not 100% sure that the issue is with the power board.
I went over the posts regarding this monitor
The issue started about a month ago, when i turn the monitor on it would not display a pictutre but started to go through the inputs (Auto search)
When the correct input is found DVI,i can see a picture but every few seconds the picture goes on and off, and the orange led turns off and then off at the same time, this behavior can go on for some time and then it will cycle through the inputs again.
I have replaced some of the caps since i could not find the other ones at my local electronics store, the original caps do not show any signs of bulging, i have also tested them with a multi meter out of circuit and the measure fine.
i have also replaced the transformer TM-09175 although the old one seems to be fine as well, the legs measure around 950OHM and on the new one around 1000 ohm.
After replacing the transformer and caps, the monitor started working ok, but after an hour or two i started hearing a buzzing sound from the back and an hour after the old behavior came back.
I have also tested the caps C104 and C103 and the measure 2 nF, i have looked in the service manual and they show to be
....4
C103
2203-000888
C-CER,CHIP;4.7nF,10%,50V,X7R,TP,1608
1
S.A
....4
C104
2203-000888
C-CER,CHIP;4.7nF,10%,50V,X7R,TP,1608
1
S.A
Can anyone offer any advice on what to look for next?
Also the small caps on near the output connectors
C301-C305 i tried measuring them in circuit but my fluke shows OL, from the specs they seem to be less then 1nF so they are out of range for this Fluke.
I can order a whole power board from Ebay, but first of all i am looking forward to fixing it myself and also, not 100% sure that the issue is with the power board.
Comment