OSSC V1.8 Open Source Scan Converter/Upscaler

Connect original retro gaming consoles, computers and compatible arcade hardware to a modern HDMI television, monitor or capture device with the BitFunx OSSC V1.8 Open Source Scan Converter.

The OSSC is an advanced ultra-low-latency retro gaming upscaler and video line multiplier designed for high-quality analogue signals. It converts RGB SCART, component YPbPr, RGsB and VGA video into a sharp digital HDMI output while adding less than two input scanlines of processing delay.

Unlike conventional video processors that store complete frames before producing an image, the OSSC processes the incoming signal one line at a time. This makes it particularly suitable for fighting games, platform games, rhythm games, shoot ’em ups and other timing-sensitive titles where responsive controls are essential.

Classic 240p and 288p video can be multiplied using Line2x, Line3x, Line4x, Line5x or Line6x. Depending on the source signal, selected settings and connected display, the OSSC can produce sharp progressive output without the heavy smoothing commonly used by basic retro console HDMI converters.

The BitFunx OSSC V1.8 includes RGB SCART, component and VGA inputs, providing broad support across Nintendo, Sega, Sony, Microsoft, SNK, NEC and Atari hardware. It can also be used with compatible home computers, VGA equipment, FPGA systems and correctly attenuated arcade boards.

Compatible consoles can be connected using our Premium On-Sync RGB SCART Cables. A clean, correctly wired RGB cable helps maintain picture stability, colour accuracy and reliable synchronisation while ensuring the correct components and sync attenuation are used for each console.

Component video systems such as the PlayStation 2, Nintendo Wii, Original Xbox and compatible Xbox 360 consoles can connect through the three RCA YPbPr inputs. The VGA input supports compatible RGBHV equipment including the Sega Dreamcast, retro computers and original PC hardware.

Systems that only provide RF, composite or S-Video require an RGB modification, compatible video-output accessory or active transcoder before they can be connected to the OSSC. A passive connector adapter will not convert these signals into RGB or component video.

Adjustable scanline controls allow you to recreate the darker horizontal lines associated with CRT displays, while compatible V1.xx firmware also provides configurable shadow mask effects. Sampling, sync processing, colour output, overscan masking and other settings can be adjusted for individual consoles and displays.

The included infrared remote control provides convenient access to the OSSC settings, while the backlit LCD displays the detected input signal and current operating mode. Firmware updates and compatible profiles can be managed through the built-in microSD card slot.

With extensive input support, ultra-low latency and detailed control over line multiplication and image presentation, the BitFunx OSSC V1.8 provides a versatile HDMI solution for retro gaming enthusiasts who want sharper results and greater control than a basic plug-and-play converter.

Product Type: Open-source scan converter & video line multiplier
Brand: BitFunx
Hardware Revision: V1.8
Primary Use: Connecting compatible analogue retro gaming hardware to HDMI displays
Video Processing: FPGA-based line multiplication
Processing Latency: Less than two input scanlines
Output Connection: HDMI
HDMI Video Format: Full-range 24-bit RGB
HDMI Audio: Supported

AV1 Input: EuroSCART
AV1 Video Support: RGBS, RGsB & YPbPr
AV1 Sync Support: CSync, composite video sync & luma sync
AV1 Audio: Stereo analogue audio through SCART

AV2 Input: Three RCA connections
AV2 Video Support: Component YPbPr & RGsB
AV2 Audio Input: 3.5mm stereo connection

AV3 Input: 15-Pin VGA / D-Sub
AV3 Video Support: RGBHV, RGBS, RGsB & YPbPr
AV3 Audio Input: 3.5mm stereo connection

Standard-Definition Input Support: 240p, 288p, 480i & 576i
Progressive Input Support: 480p & 576p
HD Input Support: 720p & 1080i
Computer Video Support: Compatible VGA, 384p, 400p & retro-computer timings

240p / 288p Processing: Passthrough, Line2x, Line3x, Line4x, Line5x & Line6x
480i / 576i Processing: Passthrough or low-latency bob deinterlacing
480p / 576p Processing: Passthrough or line multiplication on compatible displays
720p / 1080i Processing: Passthrough where supported
Maximum Line6x Output: Up to 1920 × 1440 on compatible displays

Scanline Simulation: Adjustable strength, position & pattern
Shadow Mask Simulation: Supported with compatible V1.xx firmware
HDR Display Flag: Supported
Overscan Masking: Configurable
Sampling Controls: Generic & system-optimised modes
Profile Support: Internal profiles & compatible microSD profile storage

Display: Backlit LCD
Control Method: Front-panel buttons & infrared remote control
Firmware Updates: MicroSD card
Compatible Firmware Family: V1.xx

External Power Required: Yes
Power Requirement: 5V DC, 1A minimum
Included Power Supply: 5V 2A
Power Connector: 2.1 × 5.5mm centre-positive barrel connection

OSSC Dimensions: Approximately 140 × 90 × 43mm
OSSC Weight: Approximately 185g
Remote Dimensions: Approximately 185 × 47 × 23mm
Remote Weight: Approximately 65.5g

Compatibility depends on the console outputting RGBS, RGsB, component YPbPr or RGBHV/VGA through a correctly wired cable, modification or active interface.

Nintendo

Super Nintendo Entertainment System – Original PAL Models: RGB SCART using a correctly wired PAL SNES cable.

Super Nintendo Entertainment System – Original NTSC Models: RGB SCART using a correctly wired NTSC SNES cable.

Super Famicom – Original Models: RGB SCART using a correctly wired Super Famicom or NTSC SNES cable.

SNES Mini / SNS-101: Requires an RGB restoration modification before it can provide a compatible RGB signal.

Super Famicom Jr: Requires an RGB restoration modification before it can provide a compatible RGB signal.

Nintendo 64 – PAL: Requires an RGB modification or suitable active video transcoder.

Nintendo 64 – NTSC-U: Requires an RGB modification or suitable active video transcoder.

Nintendo 64 – NTSC-J: Requires an RGB modification or suitable active video transcoder.

Nintendo Entertainment System / NES: Requires an RGB modification, compatible Lumacode solution or active composite-to-RGB/component transcoder.

Famicom: Requires an RGB modification, compatible Lumacode solution or active video transcoder.

Famicom AV: Requires an RGB modification, compatible Lumacode solution or active video transcoder.

GameCube DOL-001 – PAL: RGB SCART through the Analogue AV Out or component video through a compatible Digital AV solution.

GameCube DOL-101 – PAL: RGB SCART through the Analogue AV Out.

GameCube DOL-001 – NTSC-U/J: Component video through a compatible Digital AV Out solution.

GameCube DOL-101 – NTSC-U/J: Requires a modification or active transcoder because these consoles do not provide native RGB or component output.

Nintendo Wii RVL-001: Component YPbPr using a compatible Wii component cable.

Nintendo Wii Family Edition RVL-101: Component YPbPr using a compatible Wii component cable.

Nintendo Wii Mini RVL-201: Requires an active composite-video transcoder because the Wii Mini does not provide component output.

Sega

Master System Model 1: RGB SCART through the console AV connection.

Master System Model 2: Generally requires an RGB modification or compatible alternative RGB-output solution.

Mega Drive Model 1: RGB SCART or compatible component-video cable.

Genesis Model 1: RGB SCART or compatible component-video cable.

Mega Drive Model 2: RGB SCART or compatible component-video cable.

Genesis Model 2: RGB SCART or compatible component-video cable.

Mega-CD / Sega CD: Video is supplied by the connected Mega Drive or Genesis console.

Sega 32X: RGB SCART or compatible component-video cable connected to the 32X AV output.

Sega Saturn – PAL: RGB SCART or compatible component-video cable.

Sega Saturn – NTSC-U/J: RGB SCART or compatible component-video cable.

Sega Dreamcast: RGB SCART, compatible component video or VGA/RGBHV.

Dreamcast VGA Compatibility: Some Dreamcast games do not support VGA output. Use RGB SCART for incompatible games or a suitable device that can force compatible titles into VGA mode.

Sega Multi-Mega / CDX: RGB SCART using a correctly wired system-specific cable.

Sega Nomad: Requires a compatible RGB-output solution or modification, depending on the installation.

Sega Game Gear: Requires an RGB-output modification or compatible external video-output modification.

Sony

PlayStation / PS1: RGB SCART.

PS One: RGB SCART.

PlayStation 2: RGB SCART or component YPbPr.

PlayStation 3: Component YPbPr set to a compatible output mode such as 480p, 720p or 1080i.

PSP-2000: Component video using a compatible PSP TV-out cable.

PSP-3000: Component video using a compatible PSP TV-out cable.

PSP Go: Component video using a compatible TV-out cable or cradle setup.

PSP-1000: Not supported directly because it does not provide video output.

PSP Street E1000: Not supported directly because it does not provide video output.

Microsoft

Original Xbox: Component YPbPr using a compatible component cable or component-output adapter.

Original Xbox PAL: HD display modes generally require a compatible modified or NTSC-configured console.

Xbox 360 With Component AV Support: Component YPbPr set to a compatible resolution such as 480p, 720p or 1080i.

SNK

Neo Geo AES: RGB SCART using a correctly wired cable for the console revision.

Neo Geo CD: RGB SCART.

Neo Geo CDZ: RGB SCART.

Neo Geo MVS: Requires a properly attenuated Supergun or consolised MVS video output.

Neo Geo Pocket / Pocket Color: Requires a compatible television-output modification.

NEC

PC Engine: Requires an RGB modification or compatible RGB-output accessory.

CoreGrafx: Requires an RGB modification or compatible RGB-output accessory.

CoreGrafx II: Requires an RGB modification or compatible RGB-output accessory.

PC Engine Duo: Requires an RGB modification or compatible RGB-output accessory.

PC Engine Duo-R / Duo-RX: Requires an RGB modification or compatible RGB-output accessory.

TurboGrafx-16: Requires an RGB modification or compatible RGB-output accessory.

SuperGrafx: Requires an RGB modification or compatible RGB-output accessory.

PC Engine With Super SD System 3: RGB output through the accessory using a compatible cable.

PC Engine With dbGrafx Booster: RGB output through the accessory using a compatible cable.

Atari & Other Consoles

Atari Jaguar: RGB SCART.

Atari 2600: Requires an RGB, component or Lumacode modification, or an active video transcoder.

Atari 5200: Requires a suitable video modification or active transcoder.

Atari 7800: Requires a suitable RGB, component or active video conversion solution.

Panasonic 3DO: Requires an RGB or component modification, or an active S-Video transcoder.

ColecoVision: Requires an RGB modification or active video transcoder.

Intellivision: Requires an RGB modification or active video transcoder.

Philips CD-i: Compatibility depends on the console model. Use native RGB where available or a compatible modification or transcoder.

FM Towns Marty: Compatible RGB output through a suitable system-specific cable or adapter.

Retro Computers

Commodore Amiga: RGB SCART or a suitable RGB-to-SCART adapter.

Atari ST / STF / STFM / STE: RGB through a suitable 13-pin monitor to SCART or VGA-style cable.

Sinclair QL: RGB through a suitable system-specific cable.

ZX Spectrum 128 / +2 / +3: RGB through a correctly wired model-specific cable.

ZX Spectrum 16K / 48K: Requires a video modification or active composite-video transcoder.

Amstrad CPC: RGB through a suitable monitor-port adapter with the correct power and audio arrangement.

MSX / MSX2 / MSX Turbo R: Model-specific RGB SCART or VGA connection.

Sharp X68000: RGBHV through a suitable VGA adapter cable.

DOS & Early Windows PCs: VGA RGBHV where the resolution and refresh rate are accepted by the OSSC.

PC-98 Computers: Model-specific RGBHV cable and compatible video timings.

MiSTer FPGA Analogue Output: VGA, RGB or component through the appropriate analogue I/O hardware and cable.

Other FPGA Systems: Compatible RGB, VGA or component output through the correct analogue hardware.

Arcade Hardware

The OSSC can be used with compatible arcade boards through a correctly configured Supergun or video interface that attenuates RGB and sync to safe consumer levels.

Examples include:

Neo Geo MVS
Capcom CPS-I
Capcom CPS-II
Capcom CPS-III
Irem M72 / M81 / M92
Sega System 16
Sega System 18
Sega Model 2
Seibu SPI
Taito F2
Taito F3
Toaplan V1
Toaplan V2
Sony ZN-1 / ZN-2
Compatible JAMMA RGB Boards

Important: Raw JAMMA RGB and sync must not be connected directly to the OSSC SCART input. Use a suitable Supergun or properly attenuated interface.

Composite & S-Video Are Not Supported Directly: The OSSC accepts RGBS, RGsB, component YPbPr and VGA-style video signals. Standard composite and S-Video cables cannot be connected directly.

A Composite-To-SCART Adapter Will Not Work: Basic RCA-to-SCART adapters only change the physical connection. They do not convert composite video into the RGB signal required by the OSSC.

EuroSCART Connection: The OSSC uses the European SCART wiring standard. Japanese RGB21 cables use the same physical connector but have a different pinout and must not be connected directly.

Use A Correctly Wired RGB Cable: Cable components, console region and sync wiring can affect picture stability, colour accuracy and compatibility. Browse our Premium On-Sync RGB SCART Cables for compatible console connections.

Console Video Cables Are Not Included: Each system requires an appropriate RGB SCART, component or VGA cable. The required connection varies between consoles, revisions and regions.

Sync Levels Matter: The OSSC SCART input is designed for consumer video-level sync. Cables using a console’s TTL-level CSync output must include suitable attenuation.

Do Not Connect Arcade Boards Directly: Raw arcade-board RGB and sync levels can exceed normal consumer video levels. Use a correctly configured Supergun or properly attenuated interface between the arcade hardware and OSSC.

Display Compatibility Varies: Higher line-multiplication modes use output timings that may not be accepted by every television, monitor, HDMI switch, AV receiver or capture device.

Line2x Offers The Widest Compatibility: When Line3x, Line4x, Line5x or Line6x is not accepted by your display, select Line2x or passthrough mode.

480i & 576i Use Bob Deinterlacing: Bob deinterlacing keeps processing latency extremely low but can produce visible vertical movement around static text, menus and fine horizontal details.

Resolution Changes Can Interrupt The Picture: Games that switch between 240p gameplay and 480i menus may cause a brief blank screen while the OSSC and connected display resynchronise.

1440p Requires A Compatible Display: Line6x and 1440-line output modes require a television or monitor capable of accepting the resulting resolution, refresh rate and video timings.

HDR Is A Display Flag: The optional HDR setting instructs a compatible television or monitor to enter an HDR presentation mode. It does not convert the original game into genuine HDR content.

Use Compatible Firmware Only: Hardware revision V1.8 must only be updated using compatible V1.xx firmware. Installing firmware designed for earlier OSSC hardware can cause incorrect operation.

External Power Is Required: The OSSC requires a regulated 5V DC power supply. A 5V 2A adapter with UK, EU, US and AU plug heads is included.

Use The Correct Power Supply: Any replacement supply must provide 5V DC through a 2.1 × 5.5mm centre-positive connector. Incorrect voltage or polarity may permanently damage the unit.

HDMI Cable Not Included: A standard HDMI cable is required to connect the OSSC to your television, monitor, AV receiver or capture equipment.

Connect Equipment With The Power Off: Switch off the OSSC and connected equipment before inserting or removing analogue video cables.

1 × BitFunx OSSC V1.8 Open Source Scan Converter
1 × Infrared Remote Control
1 × 5V 2A Power Adapter
1 × UK Plug Head
1 × EU Plug Head
1 × US Plug Head
1 × AU Plug Head
1 × User Manual

This BitFunx OSSC V1.8 is covered by a 12-month limited Retrolize warranty against manufacturing defects and hardware faults arising during normal use.

The warranty does not cover accidental damage, liquid damage, damaged connectors, incorrect power supplies, reversed polarity, unauthorised hardware modification, interrupted firmware updates or damage caused by unsuitable cables or incompatible equipment.

Display incompatibility with particular line-multiplication modes, non-standard output timings, resolution switching, bob-deinterlacing behaviour, unsupported analogue video formats or incorrectly wired third-party cables is not considered a hardware fault.

Firmware must only be updated using files designed for OSSC hardware revision V1.8 and the V1.xx firmware platform. Damage or malfunction caused by installing incompatible firmware is not covered.

Warranty claims remain subject to the full Retrolize warranty terms.