olix Posted September 7, 2021 Share Posted September 7, 2021 Lotharek has a 64KB SRAM module that replaces base ram of 64KB in all 8bit ATARI. So you don't need the two 41464 RAMs. There is also a Freddy-replacement from Lotharek. SRAM 64Kb by Lotharek FREDDY MODULE by Lotharek Would it be possible, to use these two replacements with the new xe-pcb? Quote Link to comment Share on other sites More sharing options...
Matej Posted September 7, 2021 Share Posted September 7, 2021 2x board for me, I am from Europe Quote Link to comment Share on other sites More sharing options...
Mr Robot Posted September 7, 2021 Share Posted September 7, 2021 11 minutes ago, Matej said: 2x board for me, I am from Europe You are a bit late to the party, I think it's sold out now and the only way to get a board is from the Abbuc store Quote Link to comment Share on other sites More sharing options...
olix Posted September 8, 2021 Share Posted September 8, 2021 What kind of transistor is Q3 (npn or pnp)? The lettering for Q3 is missing on the mainboard (abbuc version). Quote Link to comment Share on other sites More sharing options...
santosp Posted September 8, 2021 Author Share Posted September 8, 2021 @olix NPN. Quote Link to comment Share on other sites More sharing options...
Santyago Posted September 9, 2021 Share Posted September 9, 2021 Almost done 5 Quote Link to comment Share on other sites More sharing options...
olix Posted September 9, 2021 Share Posted September 9, 2021 On the pcb (Abbuc-version), three 4,7 uF "Bipolar" Caps are drawn (Tantal?). Also in the Component List. But in your mouser basket are three normal Elecrolytic Caps (not bipolar) 4,7 uF listed. What should i use: Bipolar or normal Elko? Quote Link to comment Share on other sites More sharing options...
santosp Posted September 9, 2021 Author Share Posted September 9, 2021 @olix If you check once more carefully the BOM, you will find this exact capacitor. Is a Bi-Polar type. 1 Quote Link to comment Share on other sites More sharing options...
santosp Posted September 9, 2021 Author Share Posted September 9, 2021 An urgent update for those who want to assemble the UAV circuit on this board. ON semiconductor announce the "end of life" of NCS2563DR2G video amplifier. This crucial component for the assembly of UAV circuit will be discontinued by the manufacturer after 8 July 2022. Quote Link to comment Share on other sites More sharing options...
+MrFish Posted September 9, 2021 Share Posted September 9, 2021 1 hour ago, santosp said: An urgent update for those who want to assemble the UAV circuit on this board. ON semiconductor announce the "end of life" of NCS2563DR2G video amplifier. This crucial component for the assembly of UAV circuit will be discontinued by the manufacturer after 8 July 2022. Is there any suitable replacement/substitute available (considering other manufacturers). 1 Quote Link to comment Share on other sites More sharing options...
olix Posted September 15, 2021 Share Posted September 15, 2021 The Ferrite Beads (2Ohm / 5) are currently not available at mouser. Not again until December. Is there an alternative for this? Can I use Beads with other values? like these: 40X FRH035060-A Ferrit: Perle Imp.@ 100MHz: 60Ω Montage: THT Imp.@ 25MHz: 30Ω FE | eBay or https://www.reichelt.de/emv-ferrit-entstoerfilter-axial-21-ohm-10-mhz-bead-8-21-p105526.html?&nbc=1&trstct=lsbght_sldr::7112 Quote Link to comment Share on other sites More sharing options...
olix Posted September 16, 2021 Share Posted September 16, 2021 In the original schematic of the 512k extension from hias is a note, to set two connections if you don't use the battery and the DS1210 IC. If i don't use U12 (MXD1210) should i set two jumper on the empty socket of U12 (1-8 and 5-6) to set the two bridges like in the digram? Quote Link to comment Share on other sites More sharing options...
santosp Posted September 16, 2021 Author Share Posted September 16, 2021 @olix You must do a solder between the pins 1 and 8 of U12. Quote Link to comment Share on other sites More sharing options...
Santyago Posted September 17, 2021 Share Posted September 17, 2021 @olix Still avail here https://www.tme.com/us/en-us/details/b-01-a1/ferrite-beads/kemet/ Quote Link to comment Share on other sites More sharing options...
olix Posted September 17, 2021 Share Posted September 17, 2021 16 hours ago, santosp said: @olix You must do a solder between the pins 1 and 8 of U12. Just to be absolutely sure and not to make a mistake: I only need to do a solder between 1 an 8 of U12? I really don't need a connection between pin 5 and 6 of U12? In the original circuit diagram from HIAS, this is expressly listed in note 1, if no battery is fitted. Otherwise the connection between the GAL (pin 18) and the memory chip (pin 22) would be missing. Quote Link to comment Share on other sites More sharing options...
Santyago Posted September 20, 2021 Share Posted September 20, 2021 Should the stock keyboard work when TKII is used? PS2 work fine, but stock keyboard no (only reset button). After remove PIC, stock keyboard back to work. Quote Link to comment Share on other sites More sharing options...
santosp Posted September 20, 2021 Author Share Posted September 20, 2021 @Santyago https://atariage.com/forums/topic/319881-atari-xe-remake-pre-order-thread/?do=findComment&comment=4843973 1 Quote Link to comment Share on other sites More sharing options...
Santyago Posted September 20, 2021 Share Posted September 20, 2021 @santosp thanks Quote Link to comment Share on other sites More sharing options...
adam242 Posted September 23, 2021 Share Posted September 23, 2021 Just taking a moment to show off my completed build.. I chose to outfit my board with the Atarimax 32-in-1 Warp OS module for speed and 800 compatibility, as well as a POKEYmax for stereo sound. Both upgrades were greatly simplified by santosp including so many thoughtfully labelled breakout points. Audio out is available on both the enhanced 8-pin monitor port and a 3.5mm phone jack. Yes, that is a light-grey Lego 2x4 tile used to block off the RF and channel-select switch holes, and to provide a mounting surface for the stereo phone jack. All wrapped up in a very clean case and keyboard I set aside for this project. Finishing touch is an 'XE-touch' keyboard upgrade from Best Electronics. Anyone who hasn't experienced this yet, it is an absolute revelation. Unfortunately, I did not know that POKEYmax and TransKey II don't get along with each other, so for now the PS2 keyboard jack is useless. I have searched the forums for a solution to this but have not found one. Thank you, @santosp for creating this board! I have now been able to build the 'perfect-for-me' 130XE I've always wanted. Shout-out to @Stephen for programming the TK2 PIC for me. Works great with a genuine POKEY. Hopefully I can get POKEYmax to cooperate. 7 Quote Link to comment Share on other sites More sharing options...
+Stephen Posted September 23, 2021 Share Posted September 23, 2021 12 hours ago, adam242 said: Shout-out to @Stephen for programming the TK2 PIC for me. Works great with a genuine POKEY. Hopefully I can get POKEYmax to cooperate. There is this - 1 Quote Link to comment Share on other sites More sharing options...
foft Posted September 23, 2021 Share Posted September 23, 2021 Yeah I think TKII works pretty well with pokeymax if you flash a recent core. I have the XEGS to test with. 1 Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted September 23, 2021 Share Posted September 23, 2021 yes, update both the the tk if possible and the pokeymax... it's good to be up to date with the fixes, even if not needed now, you never know when things won't get along or will be moved to another machine that needs them. Quote Link to comment Share on other sites More sharing options...
adam242 Posted September 24, 2021 Share Posted September 24, 2021 8 hours ago, foft said: Yeah I think TKII works pretty well with pokeymax if you flash a recent core. I have the XEGS to test with. Cool. So flashing with v1.21 should make my TransKey happy? Also, my PokeyMax is model 111MO2SC, so I cannot use the .xex flash tool. Would this USB Blaster be up to the task? This project is really forcing me to update my electronics tools. And skills. Quote Link to comment Share on other sites More sharing options...
venom4728a Posted September 24, 2021 Share Posted September 24, 2021 (edited) 54 minutes ago, adam242 said: Cool. So flashing with v1.21 should make my TransKey happy? Also, my PokeyMax is model 111MO2SC, so I cannot use the .xex flash tool. Would this USB Blaster be up to the task? This project is really forcing me to update my electronics tools. And skills. I am using PokeyMax v3 with the latest firmware of TK-II no issues. I did have to follow the suggestions from Mytek pasted below, because with the PIC chip in the socket my Atari keyboard did not work initially. After the CTRL+ALT+X on the ps/2 keyboard then I was able to use both my Atari and the PS/2 at the same time. On the PS/2 keyboard press CTRL+ALT+X (Alt+X will show present setting - you want it to be OFF). This is a toggle function, so each time you press that 3 key combination you will toggle to the opposite setting (either ON or OFF). Whatever your last setting was, that will be restored upon power-up the next time around. This will float the KR lines going to Pokey and allow both keyboards to work. Hope that helps BTW, the latest firmware (V2.7J) is the one to use, since it corrects a problem associated with the stock keyboard's CRTL, SHIFT, and BREAK keys. Edited September 24, 2021 by venom4728a 2 Quote Link to comment Share on other sites More sharing options...
adam242 Posted September 24, 2021 Share Posted September 24, 2021 56 minutes ago, venom4728a said: I am using PokeyMax v3 with the latest firmware of TK-II no issues. Hmmm... it is awfully tempting to order a v3 (with quad POKEY, stereo SID, etc) for this 'perfect Atari' and just install my v2 in a different machine. Quote Link to comment Share on other sites More sharing options...
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