Sharp xl-mp131 has a red flashing light four short flashes then one long flash. like morse code. unit will not turn on.

SOURCE: SHARP AUDIO XL-MP2H

Are you holding the reset button in for a full 30 seconds? I know it sounds odd, but that's how they're doing it now.

Give it a try and let us know. When you do, please form your reply as adressing the expert in question, such as:
"worldvet: that didn't work any other ideas?"

SOURCE: Lights flash on the unit at night making it hard to sleep!

The power button does nothing in relation to this!!! Press the x-bass/demo button at the bottom of the remote. That should fix the blinking lights! :)

SOURCE: sharp cd-sw200 wont turn on

cambirle el integrado de salida

SOURCE: I have sharp mini component

Turn the Timer OFF.

http://dl.owneriq.net/a/ac88b963-e6d2-4447-be4d-8e43c83cac5a.pdf

The Knight

• 76851 Answers
• Posted on Dec 03, 2014

SOURCE: MODEL XL-MP131 SHARP Cannot Turn System On Red Light Just Flashes ... The unit is plugged in but will not turn on

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.