Sir Guntz

Some game consoles and home computers are known to have bad capacitors though. As in, ALL units of a particular make and model have bad caps and will stop working. Some examples: PC Engine Duo / TurboDuo (not R or RX versions) Sega Game Gear LaserActive PAC modules (NEC and Sega) Most 68k Macintosh computers (Compacts, LCs, etc) eMac G4 iMac G5 (probably many other G3, G4 and G5 systems too) In those cases, the failure and inevitable damage is practically guaranteed. Every single PC Engine Duo has bad capacitors. The leakage from those caps damages the board and always results in weak or missing audio. This isn't just a few units, it's all of them. So, yes there are some computers/consoles that aren't known for bad caps, but there are certainly lots that do.

I'm stunned that there are seriously people who think it's okay to just leave leaky electrolytic capacitors on a board just because it's "original" and "authentic". They are bog standard parts, they go bad, they have to be replaced when that happens. Either that or you can kiss the functionality of your console or computer goodbye. Take the PC Engine Duo or the much more expensive TurboDuo (both the black looking model), or any Sega Game Gear even. Those systems have really bad capacitors. It's not a matter of if they will leak, it's when. Bad caps in these systems will leak and damage the circuit board they're attached to. On the PC Engine Duo, the most common symptom is weak or no audio, as most of the capacitors are for audio. On the Game Gear, it will just stop working when the caps get bad enough. Computer hardware is no different from other machines we use every day that need servicing. Do you also think it's a smart idea to keep the original oil in your car and only use that because it's "original" and "authentic"? No, you replace the oil when it gets bad. Electrolytic capacitors are exactly the same. A standard part that will go bad eventually and they must be replaced, or your computer will stop working and likely deteriorate beyond repair.

Although it is tragic that a rare IBM computer was damaged - really the best thing to have done was just try disks and then stop - but I fail to see why this was really so bad. It literally looks like a POS (point of sale) computer, even some people in here have pointed that out. Even if it's rare, it's a really boring computer and they may very well have been sent there because they didn't work. I don't think most people really care about POS systems that much.

Do you ship to Canada? I also have a friend in the USA who trades with me if that works better.

Still making new ones?

I think I sold you something before on NintendoAge? I can't remember. What are you looking to trade?

I use Maxell CD-Rs and they work great

Bump

price reduced

I first heard about the Neo Geo around 2007 I think. It was a really cool system with this heavy mystique around it, I felt that 24-bit hype even being so late to the party.

still available

I only ship to USA and Canada, nowhere else. Prices are in USD. Paypal only. Neo Geo CMVS System, model MV-1FS Includes power supply. This CMVS System features composite, S-Video and RGB output through a Jamma-Nation-X Stryder encoder board, stereo sound and the usual power input and switch. It also has a battery holder and CR2032 battery mod. PCB is in good shape, fully tested and working. It has a few patch wires in the Z80 section. Picture here https://i.imgur.com/pw6RPUZ.jpg Out of respect to Razoola who isn’t personally selling UniBIOS chips anymore, I’m not including a UniBIOS 4.0 free version. You can get one from Jamma-nation-x.com, JMKurtz or other approved distributor. Game not included. $270 $260 $240 USD shipped to USA and canada SOLD Composite test RGB converted to component test .

The Coleco Chameleon is real after all

I have an issue with two games on my //e, Maniac Mansion and Prince of Persia. They flat out don't work, no matter that disk images I try. I've ruled out bad disks by copying known good games to those same disks and they work fine. I've heard that Maniac and POP require 128K RAM to run, I don't know if I have that. I have a //e with a 65c02 marker on the keyboard, I don't know what exact model of //e it is. Inside it has just a 64K RAM card in the AUX slot, maybe a double hi-res card. Do I need to get a 128K card for one of the expansion slots? I've also had some conflicting information that the //e has 64K on-board and using a 64K AUX card should work, but these games don't work. I think I should just get a 128K RAM card and be done with this.

Well, it doesn’t seem to be moving too fast. Toss me a PM if you’ve decided.

Price dropped

I'm not firm on the price. toss me an offer?

I got it from (I think) jelloslug on pcenginefx before the forum closed. See this thread: https://www.pcenginefx.com/forums/index.php?topic=18611.0

Shipping only to Canada and USA, Paypal only, Prices are in USD. --- PC Engine Duo system, the original black model. It's fully recapped with a console5 smd cap kit, with a new super capacitor for saving and an RGB amp mod + 8 pin DIN socket. It needed wires to fix a couple corroded vias from the original capacitors. The DC jack was replaced with a smaller socket to fit more common power adapters. It has a new 3D printed card slot cover. The CD drive hasn't been touched but works great. Console is fully tested, good audio from the AV port and the headphone jack. Comes with PSU, matching controller, AV cable and RGB SCART cable. Also includes 3 loose hucard games Victory Run, Legend of Hero Tonma, Be Ball SOLD $270 USD shipped to Canada and USA SOLD Pictures: https://i.imgur.com/ORU8Nat.jpg https://i.imgur.com/Gn4dpeV.jpg https://i.imgur.com/CSLdcSo.jpg https://i.imgur.com/TFbteBy.jpg https://i.imgur.com/WIA2cdy.jpg Composite video: RGB converted to component video: https://i.imgur.com/YmF1eVH.jpg https://i.imgur.com/usbcrms.jpg PCE card and CD games in cases. Panic Bomber (CIB) $15 SOLD (disc underside pic) https://i.imgur.com/82EHxug.jpg Advanced Variable Geo (CIB) $15 SOLD (disc underside pic) https://i.imgur.com/eLOxyx5.jpg L-Dis (CIB) $15 SOLD (disc underside pic) https://i.imgur.com/tjC8tRc.jpg Bomberman 94 (card and case, no manual) SOLD

I tried the checkout at arcadecomponents.com and their postage to Canada is very reasonable $8.50 USD), so I went ahead and ordered a CO10444 TIA and since it was on sale, a CO10745 6507 CPU too.

Did nobody notice the mention of Atari-style joysticks here? Last I checked, you can't get easily get those to work on later IBM PC compatibles. The focus here should mainly be on gameport controllers (DB15). I don't think there's a particularly easy option for a computer like this. If you had DOS drivers for the PCMCIA / CardBus / PC Card slots, then a Gameport card would work. Parallel port to gameport would be a pain in the ass.

Unless the game uses SRAM for game code (very rare in SNES games), then the only answer here is the Mask ROM. Do you by any chance have another SNES to test the game on?

So, the game doesn't boot then, just a black screen? PCB has no apparent damage? Probably a bad Mask ROM then. Yes, they can go bad. A friend of mine mailed me a non-working Super Metroid, the first print version with 3 Mask ROMs in it, the PCB was in amazing condition. After extensive tests (dumped game, examined ROM in hex editor), I found that ROMs 1 and 2 out of 3 had gone bad. The last ROM was still good, just had to burn EPROMs to replace the first two ROMs. The specific nature of failure was the first two Mask ROMs appeared to have a stuck lower data line, internal failure. The game's (Super Metroid) SNS header said "Sspprrmmttoodd", the header is located at the beginning of the first Mask ROM. Also, ROMs 1 and 2 were made by Toshiba, the 3rd one was by Hitachi.

He said the game boots to a black screen and the intro music plays. Sometimes the game displays the anti-piracy screen. I don't think the problem lies in the edge connector/trace area. It sounds more like a ROM/SRAM problem. The SNES cartridge slot is what some would call "OneBus", everything in the SNES has to share and take turns with the cartridge slot. A broken trace or a failing Mask ROM usually renders the game unbootable. This is unlike the NES which has two ROM buses in the cartridge slot, one for the CPU and one for the PPU. In a system like this, it's always possible to have a bootable game with graphical glitches. The PPU doesn't care if it's receiving graphics or not, but the CPU must get usable code or it can't work. The CPU also generates the music in the NES.