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NuTech QL-711V 17" Flat Panel LCD Monitor Questions & Answers
My monitor is no longer working when plugged in
Does it do the same when it is hooked up to another PC?
If it is monitor problem, then please read on before DIY repair.
If you are going to DIY and already try the monitor with another PC, and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/
Post back what you see inside so we can guide you further and it will help out other people in the future also.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Colors in QL-711V shifted to green
Hi, I had the same problem and I wrote an email to Nu. They wrote me back that I should use the Factory reset feature which you have to go through the Factory Menu to get to. Instructions to do this are as follows. I got to the menu my first try but it has been a pain to get back to it. I hope it will be easier to access for yours.
Hope this helps
-Nate
Page 1
You will need to display a gray scale picture which varys from black to white
You will need to display a gray scale picture which varys from black to white.
Displaymate 16 grays pattern is good or something like the picture to the right.
1
Press and hold SEL/AUTO and press the power button. Then release the SEL/AUTO button.
2
Press the MENU key to display the factory menu.
Sencore 11 gray Pattern
3
Press the and select FACTORY2 menu. Factory2 is at the bottom.
Press SEL/AUTO to select the FACTORY2 menu.
4
Press the to select AUTO COLOR.
5
Press the to run AUTO COLOR. Wait until finished.
You will see the colors changing and then become stable when finished. About 10 seconds.
6
Press the and select COLOR UPDATE.
7
Press the to run COLOR UPDATE. It will finish quickly. < 1second.
8
Press MENU to exit the menu. Power off/on.
NuTech QL-711V Monitor - no picture
Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.
Good Luck!
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I have a crane 181 with a nayax reader. It's only flagging 11 MDB codes. Any answer as to why? Firmware has been up
Without more information, it's challenging to determine the exact reason why your crane 181 with a Nayax reader is only flagging 11 MDB codes. However, here are a few potential reasons why you may be experiencing this issue:
- Compatibility: Not all vending machines and readers are compatible with each other. Make sure that your Nayax reader is compatible with the Crane 181 vending machine.
- Reader configuration: Check the configuration settings of your Nayax reader to ensure that it is set up correctly for the Crane 181 vending machine.
- Communication issues: Check the communication between the Nayax reader and the vending machine. If the communication is interrupted, it may not flag all the MDB codes.
- Faulty Reader: Your Nayax reader may be faulty or damaged. In this case, you may need to replace the reader or have it repaired.
- Firmware: Even if your firmware has been updated, there may still be compatibility issues between the Nayax reader and the Crane 181 vending machine. Double-check the compatibility of your firmware with both devices.
It's best to contact the manufacturer of your Crane 181 vending machine and Nayax reader to get specific support for your issue.
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