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Old 10-02-2021, 11:32 PM   #1
Mafi
New Member
 
Join Date: Sep 2021
City & State: Minneapolis MN
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 12
Default Dead but clicking Hanns-G HC194D?

Please be patient with me this is my first post.

A little Background on this. I had been having issues with this monitor waking up from sleep mode. I have two of these side by side. One was HDMI and the other DVI connected. Recently this HDMI one would wake and it would keep trying various resolutions blinking on and off before finally coming back on. I discovered if I shut it off and back on it would usually lock in and work fine right away. This was for several weeks. I came home to have it not come on but I could hear a ticking sound from inside and it wouldn't come wake up.

I pulled it apart to discover that I had partly recapped it at some point years ago. I have no idea why I only did 6 of them and not the other other 6. I don't see any obvious bad caps but obviously I don't trust the other 5 and the big 100uf 400v one either. With PS board unplugged from everything I powered it up and I could hear the ticking sound coming from the transformer about once a sec. I checked the outputs and was getting 4.98v on the +5 volt but only about 6.3v on the +12 and that was bouncing around.

The caps c101 and 102 as well as those down the right side of the pics are Panasonic FMs I put in some time ago. Image 8 shows the legs on the large cap and I had some kind of baked on dust on the left one that almost made me think it could have been leaking. It was likely just normal dust but some of it in there seemed to be almost granular. could be nothing but it just seemed weird to me so I thought I would mention it.

At a minimum I plan to try and replace the caps I missed before but I am wondering if there is a better way to proceed. I do not know theory so consider me an idiot who can barely solder. Having said that if anyone can help guide me I would appreciate it. I am sorry the pictures are so poor, I miss real cameras instead of cell phones.
I hope you can help
-Adrian
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