Timely video - I've got one of these to do as well - just need to get around to ordering the new flyback and transistor (was curious if you were going to replace that, and I've got far enough in the video to see you are :-) )
Nice! It wasn't my original intention to replace them, but these things happen... and now you know not to make the same mistake grounding out the metal package transistor too ;-)
In the h stage there is a big bipolar cap, 4,7uf 50v, it is a special one used in crt deflection circuit, it is high ripple and high frequency, may I know with which one you have replaced this?
Yep definitely, I source these BP caps from Wagner Electronics in Sydney - www.wagneronline.com.au/63v-non-polarised-np/crt-parts/television-parts/service-repair-parts/765/fl/
I'm *definitely* no expect, but I believe it's because of the relatively high voltage it switches, and the fact that it has to do this at such high speeds (~15KHz). This one is rated at 40W!
@@silvestronsbitsandbytes did the monitor work ! when i removed the cap i forgot how to insert the new cap ! the way you did it on the video i had it reverserd some people say thats wrong others say its correct !
@@elamriti Yep it did indeed work after the recap. I was able to find a photo of the backside of the mainboard I took during that time, and located C2547 - photos.app.goo.gl/PWaji7owdcD3LpCv8 (dead center) The filled and unfilled rectangle markings show which side is negative and positive, so the filled rectangle will be negative. I hope this helps!
Timely video - I've got one of these to do as well - just need to get around to ordering the new flyback and transistor (was curious if you were going to replace that, and I've got far enough in the video to see you are :-) )
Nice! It wasn't my original intention to replace them, but these things happen... and now you know not to make the same mistake grounding out the metal package transistor too ;-)
In the h stage there is a big bipolar cap, 4,7uf 50v, it is a special one used in crt deflection circuit, it is high ripple and high frequency, may I know with which one you have replaced this?
Yep definitely, I source these BP caps from Wagner Electronics in Sydney - www.wagneronline.com.au/63v-non-polarised-np/crt-parts/television-parts/service-repair-parts/765/fl/
That's a pretty big transistor - is it so chonky because of the high voltage after the flyback?
I'm *definitely* no expect, but I believe it's because of the relatively high voltage it switches, and the fact that it has to do this at such high speeds (~15KHz). This one is rated at 40W!
hey i have the same monitor can you please send me a picture of cap 2547 ,i think my board has a print mistake underneath the cap its a 2.2uf 63v
Hey! Sorry I don't have this monitor any longer - C2547 is definitely 2.2uF 63v according to my notes.
@@silvestronsbitsandbytes did the monitor work ! when i removed the cap i forgot how to insert the new cap ! the way you did it on the video i had it reverserd some people say thats wrong others say its correct !
@@silvestronsbitsandbytes do you have a link to a sharp scematic
@@elamriti Yep it did indeed work after the recap. I was able to find a photo of the backside of the mainboard I took during that time, and located C2547 - photos.app.goo.gl/PWaji7owdcD3LpCv8 (dead center)
The filled and unfilled rectangle markings show which side is negative and positive, so the filled rectangle will be negative. I hope this helps!
Need help