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Two QNIX QX2700's both died -- can they be repaired?

post #1 of 3
Thread Starter 
Three years ago I bought a pair of of QNIX QX2700 monitors for my work setup. They're great monitors and a great value.

Recently I was moving some of the plugs into a switch box I bought from Amazon, and heard a loud 'pop' and both of the monitors died. Behind one of them, I heard a sizzle and smelled smoke. Not sure what happened.

Question is... are these repairable? Does anyone repair them, or can they be DIY fixed by getting replacement boards?

thanks for any clues...
post #2 of 3
Open it up, have a look what fried, if you heard a sizzle and smelled some smoke, it's probably clearly visible what blew (probably a capacitor).
maybe it's power supply that is dead. You may be able to find the component number and find the exact one on some chinese site. Or maybe you can find the spec, and find another power supply that can match it.

Otherwise someone might be selling a broken one for parts, and you can make Frankenstein's Monitor.
Ol'Faithful
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Ol'Faithful
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Intel Xeon x5660 P6X58D-E XFX AMD Radeon R9 280X Corsair Vengeance 24 GB Triple Chanel 6x4GB 
Optical DriveCoolingOSMonitor
Lite-On DVD-RW Noctua DH-14 CPU Cooler Windows 7 Pro x64 Samsung 24" LED 1080p 5ms DVI (S23A300B) 
PowerMouseAudio
Thermaltake Toughpower 750W Gold Corsair M95 Onboard :S 
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post #3 of 3
Thread Starter 
Thanks for the reply. If anyone is interested (or for googlers later), these monitors ended up being repairable with some tinkering around...

1) The panel is an LG LM270WQ1-SDA2

2) On eBay you can pick up a small board that drives this panel with a DisplayPort input, and it also replaces the backlight board

3) I had to replace the TCON board on both, which is the board underneath the metal shield on the back of the panel

4) Remove the backlight board, the controller board, and replace the TCON, and mount the new DisplayPort board. I used some epoxy to mount the board over the slot in the rear of the panel.

5) Had to buy a new 19V adapter for both, got these at Fry's

for around $100 per monitor, they are both running again... much better than $300 plus for a new one... plus a nice DisplayPort upgrade instead of using those nasty DVI inputs.
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