Autor Wątek: Ti-Of-TTL v1 by Pear BOM List  (Przeczytany 2828 razy)

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Ti-Of-TTL v1 by Pear BOM List
« dnia: 2022.05.25, 02:26:24 »
Hi, i made some boards for Pear's Ti-of-TTL v1 card and i'm looking for the BOM list for it. I realy need tho know the Capacitors,Diode and Resitances to use. All the rest i already have.

If someone know, please share with me.

Best regards,
Pedro Torres

Maryjan

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #1 dnia: 2022.05.25, 16:41:13 »
Hmm ... maybe ask the designer about it. He is present on this forum.
"Co miałem powiedzieć - przeczytałem..." Nikodem Dyzma

pear

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #2 dnia: 2022.05.25, 19:44:36 »
Schematic with BOM in attachment.
ZX/Enterprise/CPC/Robotron/C128D

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #3 dnia: 2022.05.26, 00:57:15 »
Thank you Pear, i can assemble the boards now.

Best regards,
Pedro Torres

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #4 dnia: 2022.05.26, 13:08:07 »
Hi Pear, can you tell me about these 2 in the back of the card?

Also i'm going to use the 27c256 with Ti-of-ttl Rom , which jumpers positions i have to put?

Best regards,
Pedro Torres

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #5 dnia: 2022.05.29, 01:54:34 »
Pear, can you please tell me what are those corrections on the back of the card? There's a wire , a resistor and a Tantalum cap??? Can you tell me the values?

Best regards,
Pedro Torres

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #6 dnia: 2022.06.15, 21:50:44 »
No answer from Pear, tested the card and i'ts NOT Working.

Boots with Red Border and white lines with squares on Paper.

Made the mods on the back of the card with 1k resistor , cut trace and add wire. Also added a 47nf Tantalum. Front of the card has a small wire instead of the 1k Resistor. No joy

Someone please help , if possible.

Best regards,
Pedro Torres

Maryjan

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #7 dnia: 2022.06.16, 01:14:49 »
So it seems to me that you have a very old version of the pcb, which was a test version.
As far as I know, and I know the creator of this project well, only a few people had this version of pcb. Later versions were already free of the bugs that your pcb has.
Recently it has been a known practice that people search for production interface files, order a specific batch, and then sell them on Ebay or SellMyRetro.
These people hope to make a quick profit, but offer no help to those who buy such tiles from them. You may have been scammed in this way by a dishonest seller.
Could you please write how and where you came into possession of this pcb version?

"Co miałem powiedzieć - przeczytałem..." Nikodem Dyzma

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #8 dnia: 2022.06.18, 15:42:35 »
Hi, the card schematic was taken from the forum and Pear itself sent me the BOM for it. Any help for making it work is appreciated. I'm not going to sell any of these, it's for my own use as i've 3 FDD3000 in need of interfaces.

Maryjan

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #9 dnia: 2022.06.19, 13:06:04 »
I know, but did you get the pcb from Pear as well ?
If so, according to the schematic attached above, with the corrections made, everything should work.
I have all versions of the Ti-of-TTL that Pear developed and everything works for me.
Of course I also had the pcb from the project author. Besides, there are no tantalum capacitors there, just ordinary 100nF or 47nF.
"Co miałem powiedzieć - przeczytałem..." Nikodem Dyzma

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #10 dnia: 2022.06.19, 23:13:48 »
No, i got the gerbers from the forum. If you can get me to the right direction, i would appreciaate it.

I'm using a 27c256 eprom with ti-of-ttl rom, can you tell me the jumper's for it?

Do i have to put the 1k resistor on top of the board or the bottom?

Best regards,
Pedro Torres

Maryjan

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #11 dnia: 2022.06.20, 15:40:32 »
I contacted the author of the project and in the conversation he did not mention anything about sharing gerber files ?
If you can, please post pictures of this Ti-of-TTL version you have here. I have the Issue 3 and Issue 4 version as shown in the pictures.
I'm afraid your pcb has a lot of bugs and it will be very difficult or impossible to get it working without the help of the project author.
"Co miałem powiedzieć - przeczytałem..." Nikodem Dyzma

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #12 dnia: 2022.06.21, 01:04:25 »
Hi, as i said the gerbers where taken from the Forum itself . Post nº11 from this link : https://www.speccy.pl/forum/index.php?topic=627.0
The gerbers are in the attachment. This is my own fault, i've asked Pear for the ti-of-ttl and it seems a very occupied person and i didn't want to take much time from him. So i found those gerbers and made new cards. Later on he sent me the Diptrace schematic for it but the card doesn't work. I have all the parts, i would like to put it to work with Timex 2048/2068, ZX Spectrum 128/+2 Grey only with the FDD3000. So any help is apreciated.
 

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #13 dnia: 2022.06.21, 01:16:06 »
If Pear doesn't mind sharing the gerbers for a working version or Someone selling a blank card to me, i would be very appreciated too.

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Odp: Ti-Of-TTL v1 by Pear BOM List
« Odpowiedź #14 dnia: 2022.06.21, 06:55:56 »
Hi, as i said the gerbers where taken from the Forum itself . Post nº11 from this link : https://www.speccy.pl/forum/index.php?topic=627.0

This is just a prototype version with some bugs.
One of the errors is e.g. wrong paths.
https://www.speccy.pl/forum/index.php?topic=627.msg26442#msg26442

As far as I know, the tiles of the finished version are long over, and the author did not plan to resume this project
48K, 48K+, 128K+2 Gray, CPC 464/6128, C128D, Canon V-20, Sega Master System :)