If you have a Hanns-G HC194D with a flashing power light or not power at all then this should get you back going again. The problem with this series of monitor is 5 failing capacitors on the power supply board. To do the repair you will need the following tools: Soldering iron, de-solder braid, Phillips screwdriver, small flat blade screwdriver and a 3/16″ nut driver. You will also need the following electronic parts: qty(2) 220uf 25v capacitor, qty(2) 1000uf 10v capacitor, qty(2) 100uf 50v, qty(1)47uf 50v, qty(1) 4.7uf 50v ,qty(1) 100uf 25v and qty(2)470uf 25v. We sell a repair kit with all of the parts for $14.00

This is not guaranteed to solve all problems but in most cases this is the issue with this model.

If you don’t want to do the repair yourself, use the service request link above. Most monitor repairs run $30-35 plus return shipping.

Here is the power supply board with the faulty capacitors labeled:

After replacing the capacitors reassembly the unit and you should be back in business.

8 Comments on Repairing a Hanns-G HC194D with flashing power light

Gamaliel on Sun, 2nd May 2010 8:37 am


! Problem solved ! Thanks a lot. My monitor is back to work with your help.
I can add to list of capacitors to replace another one, a small one of 25v, 220mf that can be seen in the lower left of the photo and above the metal plate.

CCL_TECH on Sun, 2nd May 2010 8:43 am


Glad we could help!

Antonio on Tue, 18th May 2010 12:58 pm


Hello again, i wana thank you for your support! The problem is SOLVED totaly! The repairing help you wroute here is superb! Thank you soo much!

Jake on Thu, 26th Aug 2010 4:36 pm


Do you still offer the Hanns G HC-194D kit?

SaruManiac on Wed, 6th Oct 2010 12:30 pm


Tank’s, now my Hans-G works perfectly !

Monte on Sat, 29th Jan 2011 7:45 am


Disassembly to get TO the power supply board is a little scary. But I did it, soldered in the caps, and reassembled in about an hour and a half. And the monitor now works like a champ again! But if you are at all uncertain about your skills in getting the shell open (requires prying that can/will/did leave marks that I don’t care about) and successfully unplugging the five rather fragile connectors without breaking any wires..(I broke two and had to repair)….then consider using the site’s extremely reasonable repair service (which was looking pretty good to me — too late — when I broke two tiny wires to one of the connectors). But it CAN be done and it works!!

JohnB on Sat, 12th Mar 2011 8:13 am


Excellent to find a site that pinpoints the reason for the fault and supplies the components.
Received components this morning. Now monitor repaired and working again.

Thank you

tatch1 on Mon, 18th Jul 2011 6:54 am


All stripped down kit ordered ready to have a go at repairing my monitor was making a clicking noise aswell as flashing do you think it will still work ok

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