Re: Chimei DAC-19M009 Power Supply problems

PlainBill

Good thoughts.
I wasn't intending to make a career of it, but it is something that would suit an age group that prefers repair to replace.

I haven't been actively looking for monitors, so I'm not sure what the supply is like.
It is certainly something that my son could undertake to pay his way, and I might suggestion it to him.

Thanks for the help so far.
Mark

Re: Chimei DAC-19M009 Power Supply problems

PlainBill
Thanks for that

I was able to download the datasheet, and what an amazing device.
It won't be until next week that I have an opportunity to look at the monitor again, but hopefully it should be more obvious with the circuit.

I've been in the electronics game for 30 odd years, but for the last 10 or so, I haven't really used a soldering iron in anger.
Monitors are something I haven't really been involved with, so its a bit refreshing.

Great site and great advice...please...

Re: Chimei DAC-19M009 Power Supply problems

jetadm123
The picture is the same as in #15 (minus the bulging cap)
I forgot to include that the fuses were all intact, but thanks for the suggestions.


PlainBill
I managed to track down the cicuit diagram thanks to some other posts.
[URL=http://ftpkuban.com/FTP/Manual/ViewSonic/]http://ftpkuban.com/FTP/Manual/ViewSonic/[/URL]


My initial thoughts about where the inverter driver fitted in was wrong, so I'll do some more digging, and check the zener voltage.
...

Re: Chimei DAC-19M009 Power Supply problems

Firstly, what a great site.
I have managed to rescue one Viewsonic from landfill, with the help of this site, and now have a second that I'm hoping someone can help with.

I have a VX2235WM that has a DAC 19M009 supply as pictured in some of the earlier posts.
I have taken the opportunity to replace all the caps, (although none were showing any signs of distress), and gone over any suspect solder joints.

I can measure 320vDC across the capacitor (yes NZ is 230VAC), but there is nothing on the...