cetics Posted March 22, 2020 Share Posted March 22, 2020 I borrowed this card to try to fix it. (always with black screen). I remade all welds and tracks, tested the circuits with my logic circuit tester (TOP3000) and they were all shown to be good. But the sign keeps giving black screen. I checked eprom 27128 (which came without a protective sticker) and read its contents (in the attached file) Analyzing the hex files it seemed to be two games (popeye and montezuma). But through my file analyzer realize that the files were different from the roms downloaded from the net for the same games (few bytes were different). The games copied from eprom (and divided into 2) did not work on the stella emulator even though choosing the parker bros bank. It seemed to me that the files were corrupted by the exposure of the eprom. I recorded a new eprom with ROMs (Parker bros 8k) from the internet but the card still doesn't work. Is this a different card? or is it a parker bros with original layout and am i missing something here? * The card came with loose wires and as they were connected to the highest address of the eprom I thought they were for the game exchange key, but it had no effect when placing it. Could anyone check the position of the diodes? I received the plate I don't know if anyone tried to repair the plate before ... the two diodes came with the mark down. Following is a file with the ROMs and more pictures of the circuits removed. Board circuits: 74LS173 x3 74LS00 x1 Diodes x2 Ceramic capacitors x3 Resistors x3 Original Eprom: 27128 Intel Thanks to everyone and thanks to "ODIN Games" for providing me with the test board. Parker bros.zip 1 Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/ Share on other sites More sharing options...
WagnerBrasil Posted April 6, 2020 Share Posted April 6, 2020 Congratulations, I liked the images and files of this cartridge. Please What is the value of the Capacitors, take a picture with the clear values. I'll give some tips 1- Connect the orange wire together with a 1K resistor and the other end on the GND or VCC. 2- Change the CIS 74ls173 and 74ls00, it may be damaged. 3- Clean the terminals with rubber. I'll try to reverse engineer and create a copy to test your Bin file Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4502418 Share on other sites More sharing options...
cetics Posted April 6, 2020 Author Share Posted April 6, 2020 All capacitors are: (102). I had connected the orange wire directly to the VCC (without result) ... then I connected directly to the GND (also without result). I will try with the resistor. I replaced the 74LS00 with a new one (with no result). The 74ls133 I have no others to exchange. But my eprom recorder tests circuits and shows everyone how good. I also remade the welds and tracks and cleaned the contacts. (no result yet). Thank you for the tips. Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4502750 Share on other sites More sharing options...
WagnerBrasil Posted April 6, 2020 Share Posted April 6, 2020 Just now, cetics said: Todos os capacitores são: (102). Eu tinha conectado o fio laranja diretamente ao VCC (sem resultado) ... então eu liguei diretamente ao GND (também sem resultado). Vou tentar com o resistor. Troquei o 74LS00 por um novo (sem resultado). Os 74ls133 não tenho outros para trocar. Mas meu gravador eprom testa circuitos e mostra todos como é bom. Também refiz como vendido e como trilhas e limpei os contatos. (nenhum resultado ainda). Obrigado pelas dicas. Try this: 1 - Pin 26 of the Eprom 27C128 put 1 resistor 1K connected GND or VCC 2 - Pin 6 CI 74ls00 must be at 0 Volts 3 - Test continuity between the terminals of the board with those of the CI. Note: Do you have a cartridge box with the cover? Your file is fine, it has been modified to work on that circuit on this board. Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4502773 Share on other sites More sharing options...
cetics Posted April 7, 2020 Author Share Posted April 7, 2020 (edited) Liguei o resistor, mas se efeito (nada no gnd ou no vcc) o pino 6 do 74ls00 está conectado ao 22 do eprom. Liguei o cartucho e durante a operação o pino 6 do 74ls00 sobe para 1 volt e permanece assim. (ponta preta do multímetro em GND e ponta vermelha no pino 6 dos 74ls00. I don't have a cartridge box, I received the card like that and with the wires loose. Edited April 7, 2020 by cetics Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4502810 Share on other sites More sharing options...
cetics Posted April 7, 2020 Author Share Posted April 7, 2020 I lifted the eprom pin 22 (OE) off the board, and plugged it into an external 74ls00 to see if it worked, but it didn't work Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4502817 Share on other sites More sharing options...
WagnerBrasil Posted April 7, 2020 Share Posted April 7, 2020 17 hours ago, cetics said: Eu levantei o pino eprom 22 (OE) da placa e liguei-o a um 74ls00 externo para ver se funcionava, mas não funcionava Where are the: 1 - Capacitors 2 - Resistors 3 - Diodes You have to put these components, the card only works with them. Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4503369 Share on other sites More sharing options...
WagnerBrasil Posted April 7, 2020 Share Posted April 7, 2020 I need help to finish this drawing. Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4503372 Share on other sites More sharing options...
cetics Posted April 7, 2020 Author Share Posted April 7, 2020 I'll try to copy here where the components are. I can't dismantle the board again because every time I do that, some tracks and pads go away. Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4503595 Share on other sites More sharing options...
cetics Posted April 7, 2020 Author Share Posted April 7, 2020 As far as I can understand they look like this: The diodes were a bit faded, but it looks like the list was down and looked like 1N4148. DESENHORESCAPDIO.bmp Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4503658 Share on other sites More sharing options...
cetics Posted April 8, 2020 Author Share Posted April 8, 2020 I'm redrawing the card. this is the back side (if I haven't done anything wrong). after finishing everything I will go up the gerbers Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4503853 Share on other sites More sharing options...
WagnerBrasil Posted April 8, 2020 Share Posted April 8, 2020 Just now, cetics said: Estou redesenhando o cartão. esse é o lado de trás (se eu não fiz nada de errado). depois de terminar tudo eu vou subir os gerbers Good evening. The drawing is getting very good, congratulations. Please send the schematic files, I want to help with this project. I found something strange. CI 74ls00 pin 14, I believe it must be connected to the VCC. The strangest thing is the eprom 27c128 Pin 26 is connected to the VCC, so the Bank 8K hangs Then Pin 12 should change the Bank of 8K, Montezumba or Popeye Please send the Top drawing and the Button of your plate. Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4504602 Share on other sites More sharing options...
WagnerBrasil Posted April 8, 2020 Share Posted April 8, 2020 Attempts to connect Pin 2 of Eprom 27C128, connect the 1K resistor and at the other end connect GND There is a solder on the track connecting the pin 2 of the eprom 27c128, together with the 74ls173 Pin 4 removes this solder, preventing the VCC from connecting pin 2 of the eprom. 8K banK exchange can happen Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4504609 Share on other sites More sharing options...
cetics Posted April 8, 2020 Author Share Posted April 8, 2020 Here is the complete board (gerber) I think I managed to copy correctly. If you have any questions compare with the images or ask that I check here. gerbers.zip Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4504654 Share on other sites More sharing options...
cetics Posted April 9, 2020 Author Share Posted April 9, 2020 (edited) Are you referring to this weld shown on the arrow? This solder did not exist previously. I cut the trail for a test, and then I fixed it. Pin 14 of the 74ls00 is connected to the VCC. In my drawing it didn't show because I was still completing it. From the information I have, the 27128 would have 16K. Pin 26 would be the highest address (A13), and its change between VCC and GND would change the two halves of eprom (for the two 8k games). Parker bros sistens should divide the rom into 8 slices of 1K according to this document:(http://www94.pair.com/jsoper/2600_pb_bs.html) As for pin 12, it appears to me as D2. Edited April 9, 2020 by cetics Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4504683 Share on other sites More sharing options...
WagnerBrasil Posted April 10, 2020 Share Posted April 10, 2020 Atari 2600 friends I tried to draw this cartridge. I'm making the files (Eagle - Geber - Bin) available to anyone interested in improving or testing. I haven't tested it yet, I don't know if it works !!!! If someone assembles this board and tests it, please let me know if it worked, I'll be grateful. Thanks. PKB.zip Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4506389 Share on other sites More sharing options...
cetics Posted April 10, 2020 Author Share Posted April 10, 2020 I'm out of materials to manufacture a board at home, but as soon as possible, I'll order one from JLCPCB. Thanks for drawing. In my drawing I tried to represent it as close as possible to the original in order to get the best scheme. But you improved the scheme, congratulations. Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4506520 Share on other sites More sharing options...
cetics Posted April 10, 2020 Author Share Posted April 10, 2020 (edited) I went to change my design to put some switchs and I realized that I had forgotten to connect the 5v in the logic circuits. Here are the new gerbers. Edited April 10, 2020 by cetics Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4506547 Share on other sites More sharing options...
cetics Posted April 10, 2020 Author Share Posted April 10, 2020 I also realized that the example I used to make the base of the cartridge had some errors, the contacts on the cartridge were interconnected. now it has been corrected in my drawing. atached gerbers 1.2 gerbers1.2.zip Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4506582 Share on other sites More sharing options...
WagnerBrasil Posted November 15, 2020 Share Posted November 15, 2020 Boa Noite Por Favor, coloca o esquema eletrônico. Estou tentando criar o mesmo circuito, para testar a essa rom, tendo algumas duvidas!!! Com esquema eletrônico vai ajudar muito Obrigado Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4677041 Share on other sites More sharing options...
cetics Posted July 15, 2021 Author Share Posted July 15, 2021 Desculpe a demora em responder. Eu não tenho o esquema. Eu fui olhando para a placa e desenhando. Fiz diretamente o desenho no Diptrace, sem fazer o esquema antes. Sorry for the delay in responding. I don't have the schema. I was looking at the board and drawing. I made the drawing directly in Diptrace, without doing the schematic first. Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4864236 Share on other sites More sharing options...
Pilot99 Posted January 18, 2022 Share Posted January 18, 2022 If someone tested the board or ciruit plese share the results. Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4986862 Share on other sites More sharing options...
Pilot99 Posted January 19, 2022 Share Posted January 19, 2022 (edited) On 7/15/2021 at 4:11 PM, cetics said: Desculpe a demora em responder. Eu não tenho o esquema. Eu fui olhando para a placa e desenhando. Fiz diretamente o desenho no Diptrace, sem fazer o esquema antes. Sorry for the delay in responding. I don't have the schema. I was looking at the board and drawing. I made the drawing directly in Diptrace, without doing the schematic first. I need your drawings but not in gerber format, I want to print the 2 sides of the circuit separately to make my own pcb of this board. Edited January 19, 2022 by Pilot99 Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-4987582 Share on other sites More sharing options...
Thomas Jentzsch Posted April 9, 2022 Share Posted April 9, 2022 (edited) On 3/22/2020 at 5:43 AM, cetics said: The games copied from eprom (and divided into 2) did not work on the stella emulator even though choosing the parker bros bank. It seemed to me that the files were corrupted by the exposure of the eprom. I recorded a new eprom with ROMs (Parker bros 8k) from the internet but the card still doesn't work. Is this a different card? or is it a parker bros with original layout and am i missing something here? Late to the party, sorry. It seems that this cart uses different (yet unknown to Stella) bankswitching hotspots. Parker uses hotspots in the ROM address range at 0xffe0..fff8. Here the addresses are outside the ROM address range (e.g. 0x03b2, 0x03d1, 0x03e3) and do not map 1:1 to the original hotspots (e.g. 0xffe3 -> 0x03e3, 0xffe9 -> 0x03d1, 0xfff2 -> 0x03b2). The mapping is: 0xFFE0..7 -> 0x03E0..7 (1st 1K slice) 0xFFE8..F -> 0x03D0..7 (2nd 1K slice) 0xFFF0..7 -> 0x03B0..7 (3rd 1K slice) Another cool find from Brazil! @alex_79 What do you think about this one? Edited April 9, 2022 by Thomas Jentzsch Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-5037579 Share on other sites More sharing options...
alex_79 Posted April 10, 2022 Share Posted April 10, 2022 (edited) I totally missed this thread. I had a look, using the pcb files in post #19 and this is how I understand it: There are 3 74LS173 ICs to act as registers for the bank that must appear in one of the 3 lower 1k segments in cart space: Segment #0 ($f000-$f3ff): Address mask: $1397 hotspots: $380-$387 (to select bank 0-7) Segment #1 ($f400-$f7ff): Address mask: $13a7 hotspots: $380-$387 Segment #3 ($f800-$fbff): Address mask: $13c7 hotspots: $380-$387 Segment #4 ($fc00-$ffff): always points to bank 7 (because of the 3 pullup resistors on EPROM addresses A10,A11,A12) The address accessed before the hotpsot must be in cart space (A12 high). That's because the inverted A12 is used as the clock input for the 74LS173, and the clock must be on a positive transition for the IC to load a new value. So a "LDA $3e[0..7]" executed from zero page ram will NOT change the bank in segment #0! Also note that the hotspots addresses overlap, so it is possible to cause the same bank to appear in multiple segments by accessing a single address! A4=0 loads the bank number for segment #0 A5=0 loads the bank number for segment #1 A6=0 loads the bank number for segment #2 If more than one of those address bits are 0, then the specified bank will be set for each associated segment. Edited April 10, 2022 by alex_79 corrected IC part number 1 Quote Link to comment https://forums.atariage.com/topic/304193-parker-bros-card-with-different-banks-scheme-a2600/#findComment-5038465 Share on other sites More sharing options...
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