Repair Kit, Hanns-G HG281D Power Supply Board, LCD Monitor, Capacitors, Not The Entire Board

Like many others, I experienced problems with my monitor. For those not interested in a long narrative, I opened the case. I removed the two central pc boards and inspected the capacitors. I did not see any signs of overheating. I only noticed two wire wrapped inductors touching each other and insulated between them with electrical tape. I reassembled the unit having just one small screw left over (good for me). I plugged it in and it worked. I mean it really worked. It had been blinking on and off during the first one minute after power on. This problem started with one blink and over a period of 3 months or so and became 5 or 6 blinks. In retrospect, it doesn't seem to have been a heat problem. I had ordered the capacitors before I started the repair(?). I had bought a cheap desoldering iron and practiced removing capacitors from an old TV. After looking at the boards, some of the caps would have been hard to remove without damaging the board. You may deduce the fact that I love this monitor. I will followup if it blinks even once.

If you determine the problem with your Hanns-G 28-inch computer monitor is its power supply (the symptoms I had are described subsequently), this kit provides the capacitors to fix. After 7 years of use, my Hanns-G-HG281D computer monitor screen blacks out intermittently (otherwise its picture is fine and Windows plug-n-play continues to detect the monitor correctly; all these symptoms tell me that the main board is fine, the display panel is fine and the back-lighting LEDs are fine; hence it must be the power to the back-lighting LEDs). The kit is expensive, but I just did not have time to buy the individual capacitors from an electronic parts distributor (or Radio Shack). So after disassembling the monitor, getting our the power supply printed-circuit board (it looks just like the picture for the kit), taking out the steel heat-sink plate on top, replacing all the old capacitors with the new ones from the kit, re-assembling everything back inside the monitor, all took about an hour, I turned the monitor on, the green power light went on (good first sign), and I connected it back to my computer and voila, it works again, bright and sharp just as new (and hopefully lasting another 7 years).---Update---Well, it was good while it lasted. After 5 days of solid operations, the monitor started developing other serious problems and this morning it completely went kaput. I was not disappointed, at least this was a good try and I had got 7 years out of it ;-)

The other reviews tipped me to first disassemble the monitor and verify the power supply style before ordering.Caps came quickly, were the correct quantity, voltage, capacity.You will need to know the significance of the markings on the polarized electrolytic capacitors.This fix brought the PS back to life but the monitor still blinks out during warm up. My experience and reading other reviews tells me there are at least two faults in the design, one of them being a fragile PS and a separate fault affecting blink out.In my opinion as one with four decades of engineering and manufacturing, soldering novices should not attempt this fix unless you are otherwise good with your hands. The risk stems from the poor quality of board. It is single sided and uses materials that I thought had been obsoleted by the industry thirty years ago. It took some advanced skills to recognize things were falling apart and take actions that saved the project from failure.

My monitor died so I got this kit to repair it. I found that the initial kit I received didn't have all the capacitors like another review stated, however the seller was very responsive to my emails, sent me the missing capacitors (and a couple extras), and revised his kit to include all 22 capacitors from now on.The kit included solder and desoldering wick, which helps. The FAQ and tutorials that LCDalternatives has put together are also very good.Replacing all the capacitors brought my monitor back to life, which I am very happy about, especially since I love the 1920x1200 resolution (16:10) and sadly most monitors nowdays have been dumbed down to 1080 lines.Amazon link to this monitor:  Hanns.G HG281DPB 28" Widescreen LCD Monitor It includes my detailed review of it, in which I also mention the capacitor-related malfunction and fix.