Some notes to adjust the MX4000 parameters for retro gaming. These notes apply to my model (SW 2.0)
Two options:
- Read the back label
- Using the remote: MENU → 1 → 1 → GO
With this version of the software it is not possible to enter to the service menu using the remote. To access the service menu you must open the TV.
- Remove back cover. 4 screws (two up, two down)
- Set TV mode (doesn't work with RGB)
- Wit a screwdriver or something metallic short the two pins labelled
SERVICE MODE, wait some seconds until a text appears - Navigate with the remote buttons LEFT and RIGHT. Change values with UP and DOWN.
| Tag | Description | Default* | Range |
|---|---|---|---|
Rdr |
Red drive | 43 | 0-63 |
Gdr |
Green drive | 41 | 0-63 |
Rcu |
Red cut-off | 42 | 0-63 |
Gcu |
Green cut-off | 37 | 0-63 |
BRI |
Brightness | 03 | 0-7 |
COL |
Color | 03 | 0-7 |
* Default values from my TV
| Tag | Description | Default* | Range |
|---|---|---|---|
Hfq |
Horizontal frequency, Vertical hold. Adjust to avoid picture rolling | 42 | 0-63 |
Hph |
Horizontal phase, Horizontal position. Higher values move image to the right | 48 | 0-63 |
Ham |
Horizontal amplitude, Lower values increase horizontal size | 35 | 0-63 |
Vam |
Vertical amplitude, Higher values increase vertical size | 24 | 0-63 |
Vsc |
Vertical s-correction, expands centre and compresses top and bottom | 27 | 0-63 |
Vsh |
Vertical shift, Higher values move the image towards bottom of screen | 13 | 0-63 |
Vli |
Vertical linearity, compresses top, expands bottom. lower numbers squash the upper half height of the screen | 16 | 0-63 |
EWc |
East/West corner, shifts the top and bottom horizontally to expand corners. Higher numbers flare the top and bottom L/R corners outwards, lower numbers form a bulge in the middle of L/R sides | 20 | 0-63 |
EWp |
East/West parabola. To make vertical lines at sides of screen parallel with sides of screen | 27 | 0-63 |
EWt |
East/West tilt, trapezoid correction. Tilt the picture. Higher numbers tilt the picture clockwise | 37 | 0-63 |
* Default values from my TV


I just found out how to turn on the Decoder with the default B&O Remote.
Set decoder on port 2 in menu.
Turn on TV mode, then push goto. Now push shift and then picture. Decoder should pass the scart picture into the TV mode. Now you can see the picture while adjusting.