- Download this rom pack: https://archive.org/download/everdrive-packs/Darksoft STV Roll-Up Pack 2019-09-13.7z
- Extract above file to an SD card. The main folders of importance are "games" and "SOUNDS". Don't alter the structure of the folders in any way. Insert the SD card into your STV multi cart.
- Buy the LCD games selector: ST-V multicart game selector with LCD screen
- Buy some wire, get some DuPont style jumper wires, get the soldering iron out and make some connections as follows:
- P1 of the LCD selector is the power lines. This power needs to come from either the STV motherboard or the STV multi cart. You need +5V and GROUND.
- P4 and P5 of the LCD selector. You only need one of them, they're both the same, take your pick. Make a connection from either of these points to the STV multi cart pad labelled above as '4. RESET FOR LCD SELECTOR'.
- The pad of the STV multi cart labelled above as '6. RESET FOR STV MOTHERBOARD' needs a wire soldered to it and connected to the STV motherboard of IC12 - PIN 8.
- Remove the 6 black plastic jumper shunts from the STV multi cart and run a 12 pin ribbon cable (6x2) from the STV multi cart to connector P2 of the LCD games selector. Pay attention to orientation and PIN 1. Typically ribbon cables indicate PIN 1 with a marked wire. PIN 1 of the STV multi cart is located to the far left closest pin towards you (where there's a +1 written on the silkscreen and R62). PIN 1 of the LCD selector is on the far right closest towards you and marked in the picture below.
- If you want two audio sounds to play through your arcade cabinet / TV speakers, one to indicate the beginning of loading a game (start.wav) and the other to indicate when the game has finished loading (end.wav), do the following...
- You need to solder a wire to the pad of the STV multi cart labelled above as '3. AUDIO OUT'. On the opposing end of this wire you need to run a 100 Ohm resistor in series followed by a 1uF capacitor (voltage isn't crucial). The + leg of this capacitor goes towards the end of the STV multi cart. The negative end of this capacitor is then soldered to PIN 13 of the audio amp of the STV motherboard. You don't need to solder the negative capacitor lead directly to PIN 13 of the audio amp, you basically make a wiring harness.
- The SOUNDS folder needs two files, one named start.wav and the other named end.wav
- There's a bunch of sounds pre-loaded in the download pack, unfortunately most of them haven't been converted properly and DO NOT WORK. Some do work however, so before pulling your hair out and thinking you've done something wrong, try some different audio files out.
- See here for instructions on how to prepare your own audio files: https://www.arcade-projects.com/for...with-the-stv-cart-start-and-stop-sounds.2935/