Small CRT MAME Cabinets
Overview
A chance haul of brand new free 15" CCTV CRT monitors (x5) has sparked my desire to design and build a standardised small MAME cabinet to fit them and to make the design available to anyone who wants to take part.
CRT
- The heart of the project
- the most expensive single item
- the heaviest and bulkiest item
- the position of the monitor high up in a floor-standing cabinet will require a very stable cabinet design (not on wheels unless really well thought out!)
- Raspberry Pi RCA output from 3.5mm jack: http://www.ebay.com/itm/Jack-to-3-RCA-Adapter-Cable-Audio-Video-AV-3-5mm-Jack-TV-Cable-Cord-Wire-Adapter/111852720137
- 3.5mm jack Pi pinout: https://www.raspberrypi.org/forums/viewtopic.php?p=577977#p577977
- http://www.raspberrypi-spy.co.uk/2014/07/raspberry-pi-model-b-3-5mm-audiovideo-jack/
- My adapter is Video (on Red), Ground, Right, Left going toward tip of the TRRS
- Had some trouble on first try - probably due to config.txt - so since using NOOBS press shift, 2, 3 repeatedly during boot and flip between composite modes
- http://raspberrypi.stackexchange.com/tags/config.txt/info
- set #hdmi_force_hotplug=1 and hdmi_ignore_hotplug=1 and sdtv_mode=0 (for normal NTSC) and all fine
- BNC connector on monitor video input A
- Audio also! Test speakers on monitor.
- # Enable audio (loads snd_bcm2835) dtparam=audio=on
- using aplay to send wavs from Scratch (find in /usr/share/) from the console - sounds fine!
Cabinet
- hefty chipboard bases and 2x4's as per the big cabinet
- laser etched outlines where possible
- laminated panels made to fit quality T-molding
Major purchase BOM
- T-Molding: http://www.arcadeworlduk.com/categories/Arcade-Parts/T-Molding/
- the dimensions of the T-Molding would dictate the lamination of the side panels
- Zippyy joysticks, buttons, encoders, etc.