Wiki editing discussion

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By rderooy

Hero (569)

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23-08-2019, 08:06

The PAL test would be good to try, as @Pentarou mentioned, a UK model would be PAL-I while a Dutch model would be PAL-B/G. Meaning you would get video but not audio over the RF connection.
Interestingly if it were to be an Australian model that somehow found its way to Europe, it would be a PAL-B/G model.

Of course this would be best tested on a retro TV as a modern TV may well autodetect and correct for the difference. Another way to test if a retro TV is not available, would be to record the output to a VHS over the RF connection and then play it back. VHS recorders are probably less likely to auto detect the PAL-I and PAL-B/G difference as they have not been made for a long time.

By sdsnatcher73

Champion (503)

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23-08-2019, 21:24

I’ve tested RF output, but have not specifically done it with any sound output. I can try on Sunday (well for the non AA model as those are no longer in my possession). I have used a not so retro LCD TV (but a 20” 4:3 model by Sharp, so also not entirely modern). If it has sound it may be because the TV supports PAL-I, I’ll verify.

What is noticeable on all HX-10’s is that they all have a UK keyboard (with £ key) and every one has a different powerplug attached to the cord. Suggesting they put on what they could find after taking of the original plug. I’ve seen flat two prong plugs in black as well as white, 2 prong round models (without earthing) in black and white and even ones that are completely round without the space for the earthing pins (so those won’t fit our modern sockets). All of these were screw-ons.

By rderooy

Hero (569)

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23-08-2019, 22:02

The power plugs is to be expected as, at least the British HX-10 models came without power plug. This was not uncommon back in the day. The exception was the HX-10 Kit which specifically included two British plugs (one for the HX-10, the other for the data recorder), but you had to put them on yourself. They even included a screwdriver for the purpose.

By Manuel

Ascended (15625)

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23-08-2019, 23:40

I think custom power plug means it was definitely UK market. In the NL it is illegal to sell equipment without power plug, I think. And in the UK it seems it is (or was?) illegal the other way around Tongue

By Manuel

Ascended (15625)

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23-08-2019, 23:42

rderooy wrote:

@Manuel which Dutch magazine(s) mentioned the dumping of the HX-10 on the Dutch market? The only mention in MCM is in the first issue, and it is just speculation if it will come to the Dutch market. I also tried to see if there was any mention of the HX-10 in ads in MCM but could not find any, which makes me think that it was not officially sold. That leaves grey imports, but also there if there was a large grey import I would have expected some mention, either in places like the news column or in ads from resellers to offload inventory.

Was this perhaps mentioned in RAM issue 54 which is not available online?

I don't remember... But I don't think they mentioned specific brands/types. Just that there were a lot of UK MSX machines dumped on the Dutch market.
RAM has many more advertisements. Check if you see a HX-10 ad. I can't remember any, but that doesn't say much.

By rderooy

Hero (569)

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25-08-2019, 15:05

Manuel wrote:

I think custom power plug means it was definitely UK market. In the NL it is illegal to sell equipment without power plug, I think. And in the UK it seems it is (or was?) illegal the other way around Tongue

Hmm... I have some vague recollection of screwing on power plugs on appliances that came without them. So while it may well be illegal nowadays for consumer appliances, I don't think it was back in the 80's.

By Manuel

Ascended (15625)

Manuel's picture

28-08-2019, 21:52

I noticed that on the Yamaha FD-03 article, the box shows texts in English and French and the service manual is in English. So I don't think it was only released in Japan. Also, ROM dumps are available on the old Hans Otten site...

There seems to be a version 3.5 and a version 3.8. The latter seems to include 40 track support and extra diagnostic commands (thanks to Mr Zeilemaker for finding out).

As I don't know the source of these dumps, they may not be of this disk drive after all, so if someone has an FD-03 laying around... please help to dump the ROM so we can be sure Smile

Regarding emulation: it seems to have a unique 'connection style' (memory mapping of registers), looking at the above two ROMs. We're currently looking at emulating it in openMSX.

By rderooy

Hero (569)

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28-08-2019, 22:28

@Manuel you may well be right, the question is in which regions it was sold in. I did not find any mention of it in British or Dutch MSX magazines or the (more limited) selection of German and French magazines I have gone through, or the Japanese MSX Magazine up to 1986-01. But since this is Yamaha, perhaps I should have looked in old music magazines instead...

All models depicted on GenMSX and the Wiki with power supplies visible have a Japanese/American style power connector.

By Manuel

Ascended (15625)

Manuel's picture

29-08-2019, 21:08

So anyone here who owns a Yamaha FD-03?

By Manuel

Ascended (15625)

Manuel's picture

02-09-2019, 21:30

Another question... I shouldn't post it here, but it's interesting anyway and still wiki related. On Wikipedia's V9938 article, there is this info about limitations when a certain about of VRAM is used with it:

Quote:

16 kB (modes G6 and G7 will not be available)
64 kB (modes G6 and G7 will not be available)

That can't be right for the 16kB VRAM... I thik officially only the TEXT80 mode is available with 16kB VRAM compared to an MSX1 VDP. In practice one can display half a screen 5 image (NYYRIKKI made a viewer IIRC). What about screen 4, does that work with 16kB VRAM?

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