E39 - Head CODECS - D51066E -9

16^th November 2014 - Head Unit
Note on CODECS and Functionality of Movies written to SD Cards - Testing best video file formats for Eonon D5166E for E39 (Also applicable to D5102) (date: 16.11.14)

Eonon D5166e Has been designed to play DVD and music videos, downloaded videos from YouTube (Using YouTube Downloader) in the native .mp4 and converting them to .avi, or DivX setting using 'illisoft Video Converter Ultimate' testing LOTS of different files and formats and here's what I've found so far.

Video Format
Videos must be in .avi format, it will only play .mp4 or DivX if you put them on the 'Micro SD' style card use the left-hand interface on your Head Unit and use the appropriate configured menu.

When using the SD Card Menu, it does not like high frame rate videos so test what suits your unit. It struggles with .avi’s running at 29.97 and 30 fps. It was able to get near perfect playback with 25fps at 1100kb/s video + 128kb/s audio at 44100 Hz (stereo). A few clips may still hesitate so, (depends on your system) something around: 24fps @ 950 - 1100kb/s video + 128kb/s audio @ 44100 Hz (stereo).
It may not play videos in its native resolution of 800x480, or higher, such as 1280x720. If it's a 320p or 420p video on YouTube, the resolution of the downloaded file should be just fine, so leave it as is. Try not to go above 720p, you will have more success with scaling the resolution down to 720x480, you may need to test other solutions to ‘tweak’ some aspect ratio issues, however the video function works on my Unit ok now from an SD card.

WARNING: (Note-1: Without me taking the moral high ground, this function was designed initially for safety, to prevent the driver from watching videos whilst driving - NOTE 2: SAFETY FIRST you maybe transporting family and friends and this process can be dangerous to you and others based on distraction).
Note-3: If you want to use the DVD or SD video function on the move, for PASSENGERS ONLY - The following needs to be applied: Look at the back of your Head Unit, one of the wires should be labelled 'BRAKE' or with an equivalent associated label, colours can vary from 'Pink', 'Purple' or 'light Green' - Check your Head Unit wiring diagram/Instructions to identify the wire normally connected to the brake switch. Once the appropriate wire has been identified, 'earth' this wire or if unit has already been fitted, detach the wire from the brake switch (attach wire to earth, inline or on the car chassis).
Switch on your Head Unit, start the car engine and the video should play, at ignition key setting one and two and whilst moving. Check your DVD first and then your SD Card loaded with your appropriate movies. If not working note your display format, as noted above in video format.

Radio Tuner keeps Tuning (Problem and Solution)
Another point, I have noticed the radio will re-program itself by re-scanning. On investigation I found the unit can be a tight fit against the bulkhead or firewall, (car chassis) especially with the wires coming from the back of the unit. Due to vibration and going over potholes, there is a tendency for the Ariel and the iPod lead to disconnect, pull or drop out of their housing, so they do require a firm push into the unit. A clip or some insallation tape could be a soulution to keeping them in place. I have carried out this fix and months on , the problem has not repeated, so works for me.