VideoGamePerfection.com | Dr.OG | Activity https://videogameperfection.com/members/dr-og/activity/ Activity feed for Dr.OG. Fri, 08 May 2026 00:31:23 +0100 https://buddypress.org/?v= en-US 30 hourly 2 31a513b229dd5733818bb8c049372789 Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57872 Sun, 27 Aug 2023 04:47:46 +0100 Hello! The store sent me a new board that arrived on Friday. The colors are fine with the new unit, Perfect picture!blue is no longer missing! Image quality is brilliant, the first board was faulty. So it’s all good now, thanks for the help!

]]> da092048019d165150b19f711032d1c1 Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57783 Thu, 17 Aug 2023 04:36:03 +0100 Unfortunately I don’t have an oscilloscope.
Checked the connections with a multimeter, solders seem to be fine. Actually true blue is missing, but I have i.e. magenta, which contains some blue.
I feel I’m stuck with the problem. I can’t investigate it further without special equipment (i.e. oscilloscope) which I don’t have. Besides I’m not good in…Read more

]]> c98b054e3603dfaab1a26619ba70bc81 Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57648 Wed, 02 Aug 2023 16:50:33 +0100 Besides my only SCART-capable flat panel TV shows the same with TI99/4a+TMS-RGB-V2 (see the 5th post in this topic): grey background and purple squares instead of blue. Medusa shows the same via HDMI (sorry for the stripes, I didn’ adjust pixel clock properly):TMS-RGB-V2)” width=”2080″ height=”1560″ />

]]> 92be6fe1a53df61cacc006cd43686b2a Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57647 Wed, 02 Aug 2023 16:45:59 +0100 Of course medusa is working great with other RGB sources. Tried with various retro devices, and MiST FPGA as well. Attachment shows NeoGeo core, colors are OK.MiST NeoGeo core with Medusa.

]]> a46ea1f727a12ecaf641d41216f9d3a7 Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57627 Mon, 31 Jul 2023 17:34:26 +0100 The last picture shows the mobo of my TI99/4A, with the TMS 9929A chip.TI99/4A PAL MoBo.

]]> 8fcda0581a96d5504bfa0cf9d1ee981e Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57626 Mon, 31 Jul 2023 17:31:26 +0100 Connecting TMS-RGB-V2’s RGB output to Gonbes GBS-8200’s RGB input the picture is a mess, no matter which resolution I choose.Gonbes video output shows a mess.

]]> 17e9a9083b4781f645cfb4bbf26cf33e Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57625 Mon, 31 Jul 2023 17:27:57 +0100 TI’s direct component output attached to Gonbes GBS-8200, VGA scaler set to 800×600. Bad white balance, but blue colors seem to be OK on TVGonbes: wrong white balance, but blue colors are present..

]]> e91bba42d34d48123048e5c0e7ab03b3 Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57624 Mon, 31 Jul 2023 17:24:38 +0100 The third screenshot: TMS-RGB-V2’s RGB output via SCART. Medusa and Vortex shows the same: gray background instead of cyan / light blue, and no real blue shades (seems to be violet).RGB shows wrong colors, no blue.

]]> 347d3079c98dd23a1ea0a1a55aa1f43c Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57622 Mon, 31 Jul 2023 17:19:45 +0100 The 2nd shows the screenshot taken from my previous TV’s framebuffer, TI attached directly via component cable. White balance is not perfect, but blue and purple colors are different.TI's direct component output. Blue and purple are not the same...

]]> f79ecc1a6fcf7bc26c84701b25053ff2 Dr.OG replied to the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/#post-57620 Mon, 31 Jul 2023 17:15:33 +0100 Thanks for your suggestions!
Here is the first pic, which shows the orientation of the daughterboard (TMS-RGB-V2) soldered to the TI mainboard’s bottom:

TMS-RGB-V2 soldered to the bottom of the TI's motherboard

]]> c408786033eda720c9958cf0e6732faf Dr.OG started the topic TMS-RGB-V2 board with PAL TI99/4A (TMS9929A) - wrong colors, lacking blue in the forum Repairs and Upgrades https://videogameperfection.com/forums/topic/tms-rgb-v2-board-with-pal-ti99-4a-tms9929a-wrong-colors-lacking-blue/ Mon, 31 Jul 2023 13:15:19 +0100 Hi everyone!

Matt Buxton advised me to ask help on this forum. I bought a TMS-RGB-V2 board recently from VideoGamePerfection.com and built it into my Texas Instruments TI99/4A. It’s a PAL version with TMS9929A IC.
I think the orientation is correct, and the soldering should be OK as well.
Previously I owned a Samsung LE40B650 LCD TV with…Read more

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