pxlmod Nanao MS9-29 remote conversion to MS-2932/34 + schematics

[MagicianLord77]

Finally I've been able to spend some time on this project, got a MS2934 chassis w/o remote, only remote available for purchase around I could find was pxlmod MS9-29, they look similar enough so began to research the differences in order to convert it.

Here are the steps:
PXLMod MS9-29 remote -> MS-2932/34 remote

1. Join SW280 GND to middle pin, so pin 7 will become GND, while pin 4 (S/S in MS9, NC in MS2932) remains unused
2. Color Gain (R, G, B):
   1. Replace R282, R284, R286 (3.9k) with 4.7k resistors
   2. Replace R281, R283, R285 (10k) with 6.8k resistors
3. HSize:
   1. Replace R291 (8.2k) with 470k resistor
   2. Replace diodes with 0.6v drop ones (comes with 0.3v drop ones). 1N4148 / DAN217 / BAV99 are fine
4. Contrast:
   1. Remove C281 (100nF). Install a 150nF one in C282 (originally unpopulated) place

Spoiler: Disclaimer:

Maybe it isn't necessary to change all those components, but didn't want to experiment this time, just wanted to make the remote as similar as possible to the MS2932/34 one.

Only remaining difference I didn't change: R, G, B and brightness pots are 4.7k instead of 3.3k, but didn't seem to make a difference.
Tried it and works perfectly. Here's how it looks after:

And these would be the steps if converting an original remote for some reason, same but less steps because the pxlmod remote is a bit different than stock MS9-29 for some reason:
MS9-29 remote -> MS-2932/34 remote

1. Join SW280 GND to middle pin, so pin 7 will become GND, while pin 4 (S/S in MS9, NC in MS2932) remains unused
2. Color Gain (R, G, B):
   1. Replace R282, R284, R286 (2.7k) with 4.7k resistors
3. HSize:
   1. Replace R291 (8.2k) with 470k resistor
4. Contrast:
   1. Move C281 capacitor to C282 (originally unpopulated) place

MS9-29 stock remote pots are the same as MS2932/34.

Attached are the schematics of MS-2932/34 remote I drew to find differences

 

[SnakeGrunger]

Would be cool to offer a more native solution ! I have a few 2934 chassis myself aamof.