Category: Repair

Status: Successfully repaired on 2/22/25 My buddy asked me to look into an issue with his Nintendo AV Famicom with NESRGB V1.4 mod installed. The modded console had worked fine for years, but it recently developed an issue where the Vertical Sync signal would become intermittent as the console warmed up, until finally dropping out…

Status: Successfully Repaired on 1/29/2025 In for repair was DoDonPachi Saidaioujou, a Cave shoot-em-up running on a CV1000-D board. This board is one of the recent reproduction bootlegs that’s distinguishable from an original by having gold-plated JAMMA fingers rather than tin-plated. The board would not boot up at all and a D6 LED would light…

Status: Successfully repaired on 12/15/2024 In for repair was Muchi Muchi Pork, a Cave shoot-em-up running on a CV1000-B board. The game had visual corruption showing on one of the enemies in the game: Note that the art asset viewer is hidden in this game. Flip Switch S2 on the board to the left, and…

Status: Successfully repaired on 9/15/2024 In for repair is a DoDonPachi Dai-Ou-Jou (DDP DOJ) arcade board by Cave. It boots up fine but the backgrounds and most of the text are missing. DDP DOJ runs on the IGS Poly Game Master (PGM) hardware. Although DDP DOJ was never officially released as a PGM cartridge, the…

Status: Repaired successfully on 9/11/2024 In for repair was a Spectral Vs. Generation (SVG) cartridge for the Poly Game Master platform by IGS. It was booting up to a garbled screen. SVG was a late release for the PGM platform, and it incorporates strong anti-piracy measures that IGS didn’t have in their earlier games. The…

Status: Successfully repaired on January 10, 2024 In for repair was a Capcom CPS3 board with original SIMMs and the Darksoft UltraBIOS cart that removes the need for a suicide battery in the cartridge. The board exhibited graphical glitching. The onboard diagnostics flagged the Sprite RAM as the culprit. Note that it’s normal for SIMM…

Status: Repaired successfully on 6/7/2023 In for repair is a Capcom CPS1 arcade board with the Marqs HDMI mod already installed. The HDMI display output had an unusual issue – it would look fine during gameplay, but anytime the screen transitioned with a fade in or fade out, mid-transition the fade would “pop” to full…

Status: Successfully repaired on 5/24/2023 I didn’t take as many pictures of this repair as I should have – sorry about that! In for repair was a CPS1 main board with no sound. First, I tested the B + C board on another CPS1 main board.  The sound worked fine there, so the sound issue…

Status: Ongoing. Diagnosis began on 4/9/2023. I got a good deal on a Guwange board because it was malfunctioning with both background tile and sprite corruption. The board itself looked clean at first appearances, but close examination showed plenty of leftover flux around the large SMD customs from a previous repair attempt. These boards are…

Status: Repaired Successfully on 2/14/2023 In for repair is a Sega System 16B with the Multi ROM board created by Apocalypse. The main PCB was a Tetris board originally, and the board is clean and in good condition. However, it booted up to Altered Beast with severe graphical corruption and no sound. First, I physically…