|
Post by notn4 on Aug 31, 2015 10:06:19 GMT
Hi, as the title states, I have this weird SMS that I just bought and I'd like to find some info on it, such as production year and what sort of kit this is as it came in a large black suitcase like carrying case that has a huge SEGA logo on both sides, foam padding on the inside and plastic "compartments" where the console itself fits snugly. The kit includes two controller, RF cables and the power supply. Under the console there is a paper glued to the bottom of the case that has brief operational instructions printed on it. The instructions are in Finnish as I'm from Finland and apparently this console has been sold here instead of being imported. I tried searching with the model no. that's on the back of the console but didn't find anything. The model no is 3005-18-B. All help is very welcome and greatly appreciated! Also I just signed up on this forum today so I apologize in advance if I posted this in the wrong section on the forums. Anyway, here are some photos of the kit: More images can be found in the following imgur album: imgur.com/a/W0UGi
|
|
|
Post by retrokevretro on Aug 31, 2015 10:15:58 GMT
Hi, nice purchase. To try and help you identify this case could you tell us if it has 4 holes in one side (None padded side) If it does then it is most likely a salesman sample case (The sms would have been screwed to the case to save it from moving around )
|
|
|
Post by notn4 on Aug 31, 2015 10:25:43 GMT
Thanks for the quick reply, but nope, no holes in the case. I also tried lifting the plastic insert out of the case but it seems to be glued to the bottom.
|
|
|
Post by notn4 on Aug 31, 2015 12:10:16 GMT
UPDATE: I found the manufacturing date under the expansion plate, 12 nov 1988.
I also have a few questions regarding some observations I made about the console.
The console starts but I don't get any video from it, I only got the RF adapter and a new LG tv to test with so might be that, I ordered the AV cable from ebay.
When I opened the console I found numerous places on the PCB that look like hand soldered cludges and what might be called "damage control" where wires are soldered over cut traces and resistors are added between IC pins, is that normal for SEGA consoles? Also the 7805 solder joints looked really messed up but when measuring the output it was 5V although it started from like 2V and slowly rose to nearly 5V, should I replace it?
Another weird thing I noticed was when measuring the AC adapter, it says 9V 1A but my multimeter shows over 14V and the supply heats up even when the console isn't connected to it, does this point towards a faulty power supply?
Finals question, I didn't get any games with the console but it should boot up to a SEGA logo or something even without a cartridge, right?
Thanks again for any answers, I'm totally new to SEGA but have lots of experience with Sony consoles and electronics in general so if it can be fixed then I'll be able to do it.
|
|
|
Post by retrokevretro on Aug 31, 2015 12:48:50 GMT
Hi, most of your questions go way over my head but there are some pretty knowledgeable guys on here so hopefully someone will be able to help you out. As far as I know pretty much all master systems came with a rom chip with a preloaded game(s) that would run if no cart was detected on boot up (most likely hang-on, hang-on & Duck Hunt for the original SMS not to mention the secret snail maze game) It can be tricky to get an older console to run on a modern tv with an RF cable due to interference from other electronics such as sky boxes etc.. but an AV / Scart cable will solve that issue.
|
|
|
Post by notn4 on Aug 31, 2015 14:11:18 GMT
Yeah, I guess I'll just have to wait for my cable to arrive then, might look into that power supply thing tho since 14V seems rather high for something labelled as 9V
|
|
|
Post by bkk on Aug 31, 2015 17:00:55 GMT
It's a 1988 (second digit of the serial number is the last digit of manufacture year, you've found that out already though) West German model (18 in the model number is the code for West Germany/Germany) with Hang On built in (final letter in the model number denotes the bios, in 1988 B=Hang On). The case is a SMS rental case, video rental shops used to rent out SMS hardware in those cases. The code for Nordic countries was 24, but it's possible that back in 1988 Finland just received German models (both countries seem to have been UHF PAL-G).
|
|
|
Post by notn4 on Aug 31, 2015 17:37:54 GMT
It's a 1988 (second digit of the serial number is the last digit of manufacture year, you've found that out already though) West German model (18 in the model number is the code for West Germany/Germany) with Hang On built in (final letter in the model number denotes the bios, in 1988 B=Hang On). The case is a SMS rental case, video rental shops used to rent out SMS hardware in those cases. The code for Nordic countries was 24, but it's possible that back in 1988 Finland just received German models (both countries seem to have been UHF PAL-G). Thanks alot for the info! I think I might actually know how it got to Finland without the Nordic country code, I heard this story about a year ago from my C++ course teacher. He and his friend started small business in the late 80s where they imported consoles from Germany and sold in Finland because it was either cheaper to buy from them or it was impossible to get the consoles in Finland. I remember him mentioning that they made quite a bit of money on some SEGA console, can't remember which one though. Anyway, that teacher lived here in this same small town where I found this console at a flea market. You wouldn't know anything about the AC adapter, is it supposed to be at 14V when not under load? I think I'll try to solder together my own AV cable using some 8 pin DIN plugs tomorrow and see if I'd finally get some video out of it.
|
|
|
Post by bkk on Aug 31, 2015 20:29:49 GMT
It's the correct adapter, I can't say whether it's faulty or not though.
|
|