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  • ZX Spectrum +2 RGB to CGA (RGBI) MonitorI just picked up a spanking brand new Goldstar 1410-CGA with RGBI. It has a 9 pin "D" type connector. 1 Ground 2 Ground 3 Red 4 Green 5 Blue 6 Inte…

    ... />
    I could post a schematic to overcome this problem f ...
    ingo ingo October 2007 Hardware
  • ZX Spectrum +2 RGB to CGA (RGBI) MonitorI just picked up a spanking brand new Goldstar 1410-CGA with RGBI. It has a 9 pin "D" type connector. 1 Ground 2 Ground 3 Red 4 Green 5 Blue 6 Inte…

    [QUOTE=ingo;221446]Yes, that's it but Tom-Cat is also right:



    I could post a schematic to overcome this problem f you like.

    Ingo.[/QUOTE]

    If you can, that would be very helpful. Thanks.
    lextorite lextorite October 2007 Hardware
  • ZX Spectrum +2 RGB to CGA (RGBI) MonitorI just picked up a spanking brand new Goldstar 1410-CGA with RGBI. It has a 9 pin "D" type connector. 1 Ground 2 Ground 3 Red 4 Green 5 Blue 6 Inte…

    ... />
    I placed a possible schematic on my home page
    ingo ingo October 2007 Hardware
  • ZX Spectrum +2 RGB to CGA (RGBI) MonitorI just picked up a spanking brand new Goldstar 1410-CGA with RGBI. It has a 9 pin "D" type connector. 1 Ground 2 Ground 3 Red 4 Green 5 Blue 6 Inte…

    [QUOTE=ingo;221486]I placed a possible schematic on my home page
    ( [url]http://www.truppel-online.de/[/url] [/QUOTE]

    I don't think this works because "I" input is in TTL level. With diodes and resistors, the "1" value will be very low.
    Gods Gods October 2007 Hardware
  • ZX Spectrum +2 RGB to CGA (RGBI) MonitorI just picked up a spanking brand new Goldstar 1410-CGA with RGBI. It has a 9 pin "D" type connector. 1 Ground 2 Ground 3 Red 4 Green 5 Blue 6 Inte…

    ... />

    I corrected the schematic - only 1 resistor is neccessary ... really 5V but in original schematic the level is also the ...
    ingo ingo October 2007 Hardware
  • About the edge connector (reset and comp video)Recently aquired a Kempston type interface for my rubber keyed 48K. Ive been wanting to add a composite video out and it just occured to me i might …

    ... transistors but has a simple schematic I think (no special IC ... be worth to analyze the schematic (unfortunately I actually don't ...
    ingo ingo October 2007 Hardware
  • Zx Spectrum +2 Datacorder - Discman To Car Cassette Tape AdapterHas anyone tried using a discman to cassette adapter on a ZX Spectrum +2 datacorder and loaded games with a CD or direct from a PC Soundcard?

    ... /> I ust looked at the schematic of +2. I think it ...
    ingo ingo October 2007 Hardware
  • Bubble Bobble on SpinDoes anybody else find that Bubble Bobble has corrupted sprites (bubbles for example) in 48k or 48k+ mode in Spin? Works fine in any 128k machine mo…

    ... from. Its interaction with the IF1 ROM is rather scary. :-o
    zub zub October 2007 Games
  • About the edge connector (reset and comp video)Recently aquired a Kempston type interface for my rubber keyed 48K. Ive been wanting to add a composite video out and it just occured to me i might …

    ... transistors but has a simple schematic I think (no special IC ...
    Gods Gods October 2007 Hardware
  • A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…

    ... to at least work with IF1 and the DivIDE. Probably also ...
    Winston Winston October 2007 Hardware
  • A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…

    ... 't know much about the IF1.
    However in the last ... at which precise point the IF1 pages in.

    With ... [I]guess[/I] if the IF1 pages in before that, then ...
    icabod icabod October 2007 Hardware
  • A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…

    ... the problem - if, say, the IF1 is already paged in, and ... , I can prevent the IF1 ROM from paging in by ... A15 high (so the IF1 thinks the address on the ... A15, and if the IF1 page-in latch is set ... interfaces (like the DivIDE and IF1) and have a hardware jumper ...
    Winston Winston October 2007 Hardware
  • Input/Output on Edge ConnectorI would like to sense a pulse on the data bus via the edge connector, i.e. on or off. How do you decide what port it is on? I would also like to send…

    ... .

    Here's a schematic of a relatively simple add ...
    Winston Winston October 2007 Hardware
  • Input/Output on Edge ConnectorI would like to sense a pulse on the data bus via the edge connector, i.e. on or off. How do you decide what port it is on? I would also like to send…

    ... ? If so is there a schematic anywhere?

    I would ... bits from one port adress. Schematic is not very complicated - only ... Port 31 (Kempston) a simple schematic is here:

    [url ...
    ingo ingo October 2007 Hardware
  • Input/Output on Edge ConnectorI would like to sense a pulse on the data bus via the edge connector, i.e. on or off. How do you decide what port it is on? I would also like to send…

    ... off! Looking at the Kempston schematic, which still looks complicated to ...
    carlinski carlinski October 2007 Hardware
  • Input/Output on Edge ConnectorI would like to sense a pulse on the data bus via the edge connector, i.e. on or off. How do you decide what port it is on? I would also like to send…

    ... '138 part in that kempston schematic posted) or for a full ...
    Alcoholics Anonymous Alcoholics Anonymous October 2007 Hardware
  • SAM gets ethernetWhilst off topic - head over to [url]www.samcoupe.com[/url]. Colins got his ethernet board for the SAM available to buy and some interesting news ab…

    ... counter addresses the DivIDE (or IF1) intercepts, so should be always ...
    Winston Winston October 2007 Hardware
  • Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…

    ... official issues, and other customised IF1 ROMs.
    jp jp October 2007 Games
  • Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…

    ... official issues, and other customised IF1 ROMs.[/QUOTE]

    Thanks ...
    Digital Prawn Digital Prawn October 2007 Games
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... ? (I think it needs an IF1 connected ? is that right?)
    [*]Something IF1 related? ? no, the IF1 ROM only uses $0000 ...
    zub zub November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... ? (I think it needs an IF1 connected ? is that right?)[/QUOTE ... and operate it without the IF1 as well.
    beanz beanz November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... and operate it without the IF1 as well.[/QUOTE]

    zub zub November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... 't start properly if the IF1 is not attached ? I'm ...
    zub zub November 2007 Hardware
  • ULA RAS, CAS cycles, refresh and "snow effect"Hello everyone. I have a question, does anyone observed timings of RAS and CAS generated from ULA? I think there may be answer to where the "snow ef…

    ... looking at an issue 2 schematic, if your spectrum has R57 ...
    Alcoholics Anonymous Alcoholics Anonymous November 2007 Development
  • ULA RAS, CAS cycles, refresh and "snow effect"Hello everyone. I have a question, does anyone observed timings of RAS and CAS generated from ULA? I think there may be answer to where the "snow ef…

    ... looking at an issue 2 schematic, if your spectrum has R57 ...
    csmith csmith November 2007 Development
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... able to guarantee that the IF1 ROM wasn't already paged ...
    Winston Winston November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... able to guarantee that the IF1 ROM wasn't already ... which is determining whether the IF1 was paged in, and ... is paging out the IF1 ROM so that the ... fails to initialise when the IF1 is not present casts ... decode lines from the missing IF1, causing it to lock ...
    zub zub November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... fails to initialise when the IF1 is not present casts some ... decode lines from the missing IF1, causing it to lock the ... to call code in the IF1 shadow rom. I would guess ... code pages in the IF1 and calls IF1 ROM code, then on ...
    Winston Winston November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... to call code in the IF1 shadow rom. I would guess ... code pages in the IF1 and calls IF1 ROM code, then on ... each individual call to the IF1 shadow ROM or the Spectrum ... screenshot of it!) — however, the IF1 is being accessed through the ...
    zub zub November 2007 Hardware
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