VideoGamePerfection.com | marqs | Activity https://videogameperfection.com/members/marqs/activity/ Activity feed for marqs. Thu, 20 Aug 2026 13:30:51 +0100 https://buddypress.org/?v= en-US 30 hourly 2 968d34bed9d773231f0144ad4bca4ec8 marqs replied to the topic My OSSC is being powered by 5V coming from HDMI in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/my-ossc-is-being-powered-by-5v-coming-from-hdmi/#post-70447 Sat, 15 Aug 2026 08:23:10 +0100 The DDC5V line is supposed to power circuitry in receiver which provides EDID so that transmitter can read it even if receiver is otherwise powered off. Neither OSSC or OSSC Pro relies on this as they don’t generally use the EDID. However, hot-plug assertion mechanism may also be reliant on the DDC5V in some receivers, so removing the fuse…Read more

]]> 62f1fdef70af0ff521397f72290c1458 marqs replied to the topic About latency on the OSSC Pro in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/about-latency-on-the-ossc-pro/#post-70416 Tue, 11 Aug 2026 21:03:45 +0100 On Scaler mode with 1x framelock, the latency should be a bit over 1 frame. With 2x framelock, average latency should drop to 0.75 input frames since top of the output frame still has 1 frame latency while bottom has 0.5.

With framelock off, there is an adder of 0-1 input frames and it fluctuates between that as there is no lock.

There shouldn’t…Read more

]]> 9c09eb4f0688061bd38b85efd07f637e marqs replied to the topic My OSSC is being powered by 5V coming from HDMI in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/my-ossc-is-being-powered-by-5v-coming-from-hdmi/#post-70403 Sun, 09 Aug 2026 21:22:01 +0100 Sure, you could add a diode to work around the issue if you’re familiar with SMD soldering. My point mainly was that it’d always better to fix the root cause, but it’s understandable if you want to avoid opening a plastic dongle that doesn’t have screws.

]]> 2b37571c9a8cfaa66e2050ac77ca1f6c marqs replied to the topic No Picture on AV1 on Optoma Beamer with Denon Reciver in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/no-picture-on-av1-on-optoma-beamer-with-denon-reciver/page/2/#post-70374 Wed, 05 Aug 2026 22:17:37 +0100 0 ohms into selected line and infinite resistance to inactive inputs? The frontend chip is a graphics digitizer that is not designed for sources with bad sync quality which could explain difference to CRT or generic video converters. That said, it has been tested with various powered and unpowered switches without issues.

]]> 7d3e0028f01650ecf521eac5b7914d4a marqs replied to the topic Is this Interlacing normal on PS2 footage? (OSSC Pro) in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/aggressive-interlacing-on-ps2-footage-ossc-pro/#post-70371 Wed, 05 Aug 2026 19:46:47 +0100 The Sobel edge deinterlacer needs more logic resources than what is available in current FW, but making an alternative image which cuts some other functionality to enable fitting could be an option. A second downside of it is reported deinterlacing latency (1 field versus couple lines) which however doesn’t make sense as it shouldn’t really need…Read more

]]> 1b0c048ea88fe88e59f13223ecb8af01 marqs replied to the topic No Picture on AV1 on Optoma Beamer with Denon Reciver in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/no-picture-on-av1-on-optoma-beamer-with-denon-reciver/page/2/#post-70370 Wed, 05 Aug 2026 19:40:17 +0100 It’s hard to count out the possibility of that OSSC being defective, but if it works with direct connection but not through a dumb mechanical switch, then at least I’d open and check the switch if it was my setup. Have seen enough bad scart switchers in my lifetime that only switch subset of lines.

]]> fc7a93632a77a0c394679ea44446c3ca marqs replied to the topic Huge cut off crt in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/huge-cut-off-crt/#post-70313 Thu, 30 Jul 2026 23:06:54 +0100 Which output resolution and aspect ratio do you use? Under output opt. you also find “Adv. disp timing” where you can adjust output parameters. Typically it’s recommended to do the adjustments using the built-in test-pattern using the output preset you use in Scaler mode.

]]> d7910019e2b5903c91d18f3f3ce66d65 marqs replied to the topic No Picture on AV1 on Optoma Beamer with Denon Reciver in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/no-picture-on-av1-on-optoma-beamer-with-denon-reciver/page/2/#post-70312 Thu, 30 Jul 2026 22:59:51 +0100 LM1881 typically just adds more issues than it solves unless connected exactly right. It’s futile to blame the switch without knowing its internals, but if you’ve tested various consoles through it without success then the issue can really be on the switch/connection or then the OSSC input is faulty.

]]> e402fa13da2d594ce3c00fde746d3854 marqs replied to the topic My OSSC is being powered by 5V coming from HDMI in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/my-ossc-is-being-powered-by-5v-coming-from-hdmi/#post-70311 Thu, 30 Jul 2026 22:52:54 +0100 The polyfuse should trip easily if powered only via HDMI. You could add a diode but a better solution would be to just disconnect the pin on the capture device side as it clearly doesn’t need it

]]> a7b5dd5ebe493b68c67275e80cbe4511 marqs replied to the topic 240p / 480i Modes in Pure-Line-Multiplier (P-LM) for OSSC Pro ?! in the forum OSSC - Feature Requests https://videogameperfection.com/forums/topic/240p-480i-modes-in-pure-line-multiplier-p-lm-for-ossc-pro/#post-70290 Tue, 28 Jul 2026 20:39:05 +0100 You need to use A-LM for 720p downscaling and it already has as low latency as such conversion can have. P-LM does integer-based multiplication/decimation for total amount of lines and standard 720p does not have exactly 3x total lines of 240p.

]]> c07b4cc25308545961a98f586ad8d2d9 marqs started the topic OSSC Pro firmware v0.83 in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-firmware-v0-83/ Sun, 26 Jul 2026 21:50:20 +0100 Firmware version 0.83 has been released:

* Fixed 1080p SCL preset selection of previous fw
* Improved Extra AV analog audio output flexibility
** support additional source sampling rates
** support conversion from SPDIF LPCM audio
** add gain control option
* Added basic JTAG UART serial commands
* Fixed border garbage on very low-res DV1…Read more

]]> 978fd107aac8c6d5fa7879ba6e09e15f marqs replied to the topic OSSC sync issues with PAL PSOne ("slim") in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-sync-issues-with-pal-psone-slim/#post-70269 Sun, 26 Jul 2026 11:30:46 +0100 I also had a chance to probe the PSOne I mentioned, and in that case video & sync issues were caused by a bad 220uF cap on the PCB behind AV connector. Not sure if this is a widespread issue amon PSOnes, but if you have multimeter with cap tester function, it’s very easy to test it.

]]> 9cd196df62e6357c7714dd63a2372a20 marqs replied to the topic No Picture on AV1 on Optoma Beamer with Denon Reciver in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/no-picture-on-av1-on-optoma-beamer-with-denon-reciver/#post-70262 Sun, 26 Jul 2026 07:54:02 +0100 Is the linked switch perhaps using logic switches instead of analog multiplexers? If you have original AV cables for some of the consoles and RCA-scart adapter, you can try connecting that to AV1 and see if stable sync is at detected (picture is then blank).

]]> e3e29266c72ef36aced038891e058e03 marqs replied to the topic OSSC Pro firmware v0.82 in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-firmware-v0-82/page/2/#post-70261 Sun, 26 Jul 2026 07:48:23 +0100 It’s a known issue that has been fixed and will be part of 0.83 which is released soon.

]]> 71993904e886af42edc3123f366e62b8 marqs replied to the topic Request: Better support for MiSTer ao486 core in Direct Video mode in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/request-better-support-for-mister-ao486-core-in-direct-video-mode/#post-70240 Thu, 23 Jul 2026 19:14:47 +0100 It looks like the core may not properly support direct video. Connected directly to my monitor or via HDMI->VGA converter to Pro produces no stable sync.

]]> 3193b93475edb8492b4a61c68c1356a5 marqs replied to the topic Mister DV1 Game Gear, Gameboy and Lynx cores in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/mister-dv1-game-gear-gameboy-and-lynx-cores/#post-70239 Thu, 23 Jul 2026 18:57:58 +0100 The garbage issue is now fixed and will be effective from fw v0.83. The issue with GB core seems to be that it indicates incorrect pixel repetition factor (2x instead of 5x) when menu is open.

]]> 50894eaea7632773e9f4ea71358dacc9 marqs replied to the topic [OSSC BITFUNX] - Dark display with scart input in the forum OSSC - DIY & Repair Support https://videogameperfection.com/forums/topic/ossc-dark-display-with-scarce/page/2/#post-70211 Tue, 21 Jul 2026 23:03:16 +0100 The signal goes to U1 pin 2. I’d try reflowing that part and then scope if the signal is visible on the pin.

]]> 02862e59b5c8a3edb1feab5a835b281a marqs replied to the topic Artifacting on edges of pixels in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/artifacting-on-edges-of-pixels/#post-70210 Tue, 21 Jul 2026 22:59:52 +0100 Can you try lower than Line5x? Some units have had these kind of issues when pushed close to the performance limit. There are some improvements on later firmwares but they are not compatible with vanilla v1.6 board.

]]> 78e50d94e7c68e6cdb8cfb172fa8a6b3 marqs replied to the topic OSSC sync issues with PAL PSOne ("slim") in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-sync-issues-with-pal-psone-slim/#post-70209 Tue, 21 Jul 2026 20:29:42 +0100 If you have the original AV cable, you can try connecting composite lead into the green (Y) jack to see if you get stable B/W picture via AV2 YPbPr input. That could then rule out if the SCART cable is causing the issues.

]]> 181fd7b6e74ee6af182abeacaf161523 marqs replied to the topic Amiga 1200 on a Samsung Odyssea QDH in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/amiga-1200-on-a-samsung-odyssea-qdh/#post-70199 Mon, 20 Jul 2026 17:24:29 +0100 Can you share link to the settings you’re using? Also is that 50 or 60Hz A1200?

]]> 615db02c32d6ced2abcb0cba3c59320f marqs replied to the topic OSSC sync issues with PAL PSOne ("slim") in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-sync-issues-with-pal-psone-slim/#post-70198 Mon, 20 Jul 2026 17:11:19 +0100 I’ve seen one such PSOne that had curling with a 100Hz digital-enhanced CRT it was connected to so maybe the sync signal is different to earlier models. I should have a chance to try that unit with OSSC within the next few weeks to see if it results to similar sync issues and if there’s a simple fix (usually these kind of cases have got solved via…Read more

]]> 4e887adcc1e966cb20f5f51aa45632c5 marqs replied to the topic OSSC not picking up DOS screen in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-not-picking-up-dos-screen/#post-70155 Wed, 15 Jul 2026 22:25:16 +0100 Only the firmware version is relevant, not the HW revision (assuming <1.8 is modified to support latest fw). My guess that the problem lies with the video ADC which may semi-consistently fail lock into certain signals which is not so easy to detect & fix. You could try enabling “Full VSYNC bypass” from compatibility menu which was added to address…Read more

]]> 813cabb3076035f3632fcc6c12088cc6 marqs replied to the topic OSSC Classic firmware v1.20 in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-classic-firmware-v1-20/page/3/#post-70154 Wed, 15 Jul 2026 22:15:43 +0100 The issue with Last used is fixed and will be included in the next fw.

]]> fe0e14bba74334e84f341de9ad1f6fe1 marqs replied to the topic [OSSC BITFUNX] - Dark display with scart input in the forum OSSC - DIY & Repair Support https://videogameperfection.com/forums/topic/ossc-dark-display-with-scarce/#post-70151 Wed, 15 Jul 2026 21:10:35 +0100 Actually if you get sync via AV2, then it already indicates the fault is with U1, or C103. If you have good luck, then it’s the latter or just a weak solder joint on U1 pin 2.

]]> cae66491d65376bf7c837fa68a1dbea7 marqs replied to the topic OSSC with Master system 2 in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-with-master-system-2/#post-70117 Mon, 13 Jul 2026 07:30:41 +0100 What board and firmware version you have? Also what does the front character display say and is the red LED on or off?

]]> 03e06767f5b3224b5a8e2a6389891a48 marqs replied to the topic [OSSC BITFUNX] - Dark display with scart input in the forum OSSC - DIY & Repair Support https://videogameperfection.com/forums/topic/ossc-dark-display-with-scarce/#post-70116 Mon, 13 Jul 2026 07:21:53 +0100 Since you mentioned you have a scope, can you scope output on U17A pin 19 (or from C11 pin facing it) with PS2 source? You should see same periodic sync / Y as from U17A input (pin 2). That should reveal whether the issue is with U17A or U1.

]]> 0739ffe73960f29236302592b70d9238 marqs replied to the topic OSSC 1.8 board micro sd card reader probably dead in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-1-8-board-micro-sd-card-reader-probably-dead/#post-70110 Sun, 12 Jul 2026 08:58:40 +0100 I could add .jic for the upcoming 1.22 release. Please also note that upgrade procedure is different from 1.20 onwards, refer here.

]]> 43bccc7902c24d1792f6ace6df568836 marqs replied to the topic OSSC Pro firmware v0.82 in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-firmware-v0-82/#post-70109 Sun, 12 Jul 2026 08:33:50 +0100 @cdreed3000 there is a small pilot batch currently in making, and a larger one should follow soon after if everything is OK with it.

@Jamie Shaw it covers it except the settings listed in first post

]]> 8e70c6a4227c67895b3181dab172e990 marqs replied to the topic ossc pro log file in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-log-file/#post-70108 Sun, 12 Jul 2026 08:29:21 +0100 If you have USB Blaster, it’s possible to compile a debug firmware that prints out debug info to terminal. Unexpected resets / shutdowns are usually a sign of weak solder joint on the FPGA, especially if they only occur when the device has got warm. It’s worth trying out a different firmware to see if that makes any difference.

]]> 3119fd089cc4e5a6fadce6b66f134418 marqs replied to the topic [OSSC BITFUNX] - Dark display with scart input in the forum OSSC - DIY & Repair Support https://videogameperfection.com/forums/topic/ossc-dark-display-with-scarce/#post-70085 Thu, 09 Jul 2026 17:58:04 +0100 If the green channel on AV2 is completely dead, then you don’t even get sync from component. You could also try connecting a CVBS source into Y-jack to check if you get B/W picture via AV2.

]]> dabe0ffff7b5c9cc21a6313976836d0c marqs replied to the topic Dexx VD ISL Update? in the forum OSSC - Feature Requests https://videogameperfection.com/forums/topic/dexx-vd-isl-update/#post-70059 Wed, 08 Jul 2026 08:03:35 +0100 It should be possible to port most of the later updates (actually DE10-Nano’s FPGA has more resources/features in general). While the firmware has been developed with the potential support in mind, it always needs some effort integrating and testing which is why it hasn’t been made regularly with every release. I’ll put that on my todo list anyway…Read more

]]> 48640a3b9628d7d44015bd68519d4a32 marqs replied to the topic [OSSC BITFUNX] - Dark display with scart input in the forum OSSC - DIY & Repair Support https://videogameperfection.com/forums/topic/ossc-dark-display-with-scarce/#post-70057 Wed, 08 Jul 2026 07:02:09 +0100 Are you able to test a AV2 (component video) source? Both that and AV1 are routed via a LPF+mux chip so knowing if both have similar issue would better indicate where the fault is.

]]> dd8c8d97c2652dd3eea8cbf11baa191e marqs replied to the topic OSSC Pro Uart in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-uart/#post-70051 Mon, 06 Jul 2026 14:26:43 +0100 This has been now implemented for both Classic and Pro, with latter having additional support for power up/down of the unit and enable/disable of IR remote control. The functionality will be part of next respective firmware for both. USB Blaster or suitable clone is needed for accessing the UART.

]]> 7e446c80bc11a9b40cd0e5d97986358d marqs replied to the topic ossc pro and ted c16 lumacode in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-and-ted-c16-lumacode/#post-69934 Mon, 22 Jun 2026 20:46:16 +0100 Here’s a link to a profile that should be preconfigured for PAL C16 Lumacode aside from sampling phase adjustment. Presets for Lumacode systems besides the currently supported ones (all except C16 for now) can be added on the firmware only after someone with the respective HW has tested it out, i.e. basically what we’re doing right now.

]]> 5fe3a94114fd3a0198363cb8b3d44e50 marqs replied to the topic ossc pro and ted c16 lumacode in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-and-ted-c16-lumacode/#post-69890 Tue, 16 Jun 2026 21:01:20 +0100 You can just use the position adjustment function to minimize H. backporch which should be sufficient.

]]> f6e5113dc426024f7954d9a62017a0f5 marqs replied to the topic Profile settings web app in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/profile-settings-web-app/page/6/#post-69860 Sun, 14 Jun 2026 20:55:31 +0100 @Blade you save profiles individually as prof00.bin, prof01.bin etc. at the root of fat32/exfat formatted SD and then can load one via the option. You can then save the profile on an internal slot if you prefer not keeping the SD inserted. No batch import currently exists.

]]> 997b9f3a80a1ed2f8870857eddc5bcce marqs replied to the topic ossc pro and ted c16 lumacode in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-and-ted-c16-lumacode/#post-69859 Sun, 14 Jun 2026 20:41:47 +0100 Hi,

C16 version of Lumacode was not finished when the OSSC decoding part was completed so there’s no a readymade preset yet. You could however edit Atari 7800 LC sampling preset and set H. samplerate to 342 as the first step. Apparently the board utilizes minimal sync and backporch so next you need to tune down those too on OSSC side, and also…Read more

]]> d929df62bf6b6098fd6a1a122b7dbcb2 marqs replied to the topic OSSC Audio Output too loud in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-audio-output-too-loud/page/2/#post-69774 Mon, 08 Jun 2026 19:56:14 +0100 It’d be important to know if Pro’s HDMI audio output reproduces the same issue. There are many things that can wrong in OS sound mixing but those would be then audible on the digital output too. FYI: Pre-ADC gain only applies on analog audio inputs and makes no difference on digital sources.

]]> 46246b4604a29718ca1a97bc2b804735 marqs replied to the topic Profile settings web app in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/profile-settings-web-app/page/6/#post-69669 Wed, 03 Jun 2026 20:29:37 +0100 It’s been replaced with SD load profile

]]> f17326b300cb26e9e8837e20dc5c43fc marqs replied to the topic OSSC Pro firmware v0.82 in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-firmware-v0-82/#post-69629 Sun, 31 May 2026 21:51:33 +0100 @vess: BFI operates on frames of deinterlaced 480i so the end result should have same amount of dim/flicker as with equivalent 480p source. You can control the insertion ratio with “BFI for duplicated frames” setting, but obviously going beyond 1 only works for 180Hz, 240Hz etc. output.

]]> c477502269f139bb3c0a33c027204ac3 marqs replied to the topic OSSC Pro Uart in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-uart/#post-69583 Thu, 28 May 2026 18:28:18 +0100 Unfortunately there has been no volunteers to start working on the feature over these years. This was recently also brought up elsewhere and I promised to add basic support for input selection and profile loading in near future. Somebody less overloaded can then expand support further if necessary.

]]> a2ef7c8f574c7e9c7bd28cb2fc7a0936 marqs replied to the topic Extra AV out plus expansion in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/extra-av-out-plus-expansion/#post-69540 Sun, 24 May 2026 13:43:40 +0100 Is the HDMI source outputting LPCM 2.0 48kHz? In case it’s not visible/selectable, you can try selecting EDID for Pro that indicates support for nothing else.

]]> c87c14bf7815033e644a59fd5e0ea8ba marqs started the topic OSSC Pro firmware v0.82 in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-pro-firmware-v0-82/ Thu, 21 May 2026 20:34:06 +0100 Firmware version 0.82 has been released:

* UI improvements
** character OLED contrast & timeout options
** improved profile cross-compatibility
** custom remote keys
** display EDID extract
* Preset updates
** New 288p A-LM sampling presets
** Improved GBI Line3x Generic P-LM preset
** Added alternative 1080p100 presets
* Lumacode support…Read more

]]> 649295658674cfa4bde61ee9d4168534 marqs replied to the topic No audio from AV4 input in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/no-audio-from-av4-input/#post-69497 Tue, 19 May 2026 19:58:31 +0100 It’s a bit hard to follow what has been tried out, but you shouldn’t need any extra HW if you own Extra AV out card. That however assumes your HDMI consoles output LCPM 2.0ch output. In some cases it cannot be set manually but you need to select “2ch audio” EDID preset under AV4 video in opt.

]]> 771a18038cc5c6e8c00e896526586a64 marqs replied to the topic 240p composite downscaling with the OSSC Pro in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/240p-composite-downscaling-with-the-ossc-pro/#post-69430 Thu, 14 May 2026 08:23:08 +0100 There is now plan to include support for simulataneous RGBS output via VGA as apparently there is interest for such.

]]> 7c03deff2ccb68111bdd387729b27702 marqs replied to the topic PC-98 via OBS heavy lagging in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/pc-98-via-obs-heavy-lagging/#post-69429 Thu, 14 May 2026 07:27:57 +0100 Does the capture card properly support 55Hz sources and is capture framerate adjusted accordingly?

]]> 4fd3847c8d561e3ee133d48eb6dbfe2e marqs replied to the topic OSSC and PAL Gamecube sync issue in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/ossc-and-pal-gamecube-sync-issue/#post-69428 Thu, 14 May 2026 07:26:04 +0100 You should first try adjusting Sync options -> Analog sync Vth.

]]> 1c155b98aa28ed59098c72a4d5f7dab3 marqs replied to the topic AppleTV 4k to g4 iMac in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/appletv-4k-to-g4-imac/#post-69335 Sat, 02 May 2026 09:07:00 +0100 The DFP presets are fully customizable incl. resolution and aspect. You just need to know exact timings for 1440×900@60 since it’s not a standard VESA mode.

]]> 1af1a25c8753f84391c501691dd92bee marqs replied to the topic 240p composite downscaling with the OSSC Pro in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/240p-composite-downscaling-with-the-ossc-pro/#post-69302 Mon, 27 Apr 2026 20:48:22 +0100 When populated with optional parts, it additionally supports cvbs and s-video. VGA should not be connected simultaneously, however, to avoid double termination. PAL50, PAL60 and NTSC support has been verified with both interlace and non-interlace modes.

]]> f7df3dbf3019dada7bb95ccad1f9335b marqs replied to the topic MVS synch in the forum OSSC - Discussion and support https://videogameperfection.com/forums/topic/mvs-synch/#post-69222 Mon, 20 Apr 2026 15:51:51 +0100 The product page doesn’t have much detail on how incoming sync is buffered and converted to HV (?) sync for VGA output. You can try adjusting “Sync opt -> TTL Hsync Vth” with RGBHV source, but without more details it’s hard to say what could be wrong if no sync is reported at all.

]]>