VCF silkscreen fixes

Signed-off-by: Artem Godin <artem.godin@vaadin.com>
PSU Update
* 100u caps
* Standard 1"x1" DC/DC Converter modules
+ 0.1u film caps
+ Optional screw terminal for +15/0/-15
+ CV connection to GND through 10k resistors
+ Power on LED
Proxy Board Update
* DG200 instead of DG403 (higher off isolation)
* IO connected to OI through 10k resistors when not active
* No SMD components
- LEDs
- Switch delay
Audio Input Board
+ Stereo Input
+ Balance/Gain (-oo .. +10 dB)
* 2x Mono 1/4" TRS, 1x Stereo 1/4" TRS, 2x RCA, screw terminals or IO
* Integrated IO->OI 10k resistors for mixing
Audio Mixer Board
+ Master Gain (-oo .. +10 dB)
+ 12 segment LED VU Meter
* OI bus mixer
Audio Dry/Wet Board
+ Dry/Wet knob
+ 6 segment LED VU meter
* RTL only