My mx-500 universal remote is stuck on some kind of test page and does not work. Below appears to be 5 tests (LCD, RAM, IROUT, IRAMP, & LIGHT) all say good next to them except RAM which shows fail. What do I do to fix this?

SOURCE: MX-500

call your stereo tech back must have not installed properly

SOURCE: mx 3000 universal lcd remote

There are 4 reasons why your unit is behaving this way:
1. Charger is the problem.
2. The docking station is the broken.
3. The battery is broken or not accepting charge.
4. The actual unit is the problem.
It is very hard to tell which one is causing this to happen.
Let us do some troubleshooting first:
1. Plug your charger in an A/C outlet and make sure the red power light (left) is lit, otherwise the charger or the docking station is broken.
2. You can test the charger with a multimeter. Unplug the charger from the docking station and measure the voltage across the outside and inside, it should register more than 5 volts DC. If there is a 5Volt DC the docking station is the problem otherwise the charger is broken.
3. If the red power light is lit and the status light (right) is lit too, your docking station is broken.
4. If the red power light is lit, dock the unit into the charger, the status light (left) should turn red when your battery is accepting charge or turn blue when your battery is fully charged.
5. If the status light will not lit at all (while the red power light is on), tap the screen while the unit is docked on the charger. If the unit will become alive, you need a new battery otherwise you need a new unit.

12 hours is very long time to charge, the status light should turn to blue in less than 2 hours especially for a new battery.

Vincent Bova

• 23 Answers
• Posted on Feb 11, 2009

SOURCE: Universal MX 3000 LCD gets stuck

It may be the graphics you have loaded on. Are they your own creation? I suggest syncing it with a pre-made template from URC. If not it can be that the sceen has been slightly impacted.

Regards,
Vincent
wwww.totalcontrolremotes.com

SOURCE: Remote is stuck on test screen and it says

What's the TV that's giving all these displays? LIGHT FAIL seems pretty straightforward. Look it up in the TV's manual.

SOURCE: Hi; Is there a simple way I can fix the back light of my MX-500?

There is no "bulb" in the unit. The MX-500 provides power to an electroluminiscent strip that runs from the top to the bottom of the remote. When power is applied, the whole strip glows inside.

Sounds like your light switch is going bad. Not sure what the life of the EL panel is but the part number is A015-J1