{"id":421,"date":"2024-12-23T09:18:15","date_gmt":"2024-12-23T08:18:15","guid":{"rendered":"https:\/\/blog.udisks.ovh\/?p=421"},"modified":"2026-02-15T21:35:38","modified_gmt":"2026-02-15T20:35:38","slug":"micro-professor-mpf-ii","status":"publish","type":"post","link":"https:\/\/www.mundocaos.com\/?p=421","title":{"rendered":"Multitech Micro-Professor MPF-II"},"content":{"rendered":"\n<p>El <strong>Micro-Professor <\/strong><strong>MPF-II<\/strong> es uno de los primeros clones de Apple II. Fabricado en 1982 por <strong><em>Multitech <\/em><\/strong>(posteriormente Acer), tiene una carcasa rectangular del tama\u00f1o de un libro (18x25x3 cm) y un teclado de 48 teclas de tipo calculadora. Ten\u00eda disponible opcionalmente un teclado de tama\u00f1o completo (!!!!): 55 teclas de goma, similares a las del ZX-Spectrum.<\/p>\n\n\n\n<p>Se inclu\u00edan dos plantillas para colocar en el teclado.:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La primera plantilla incluye las instrucciones BASIC asignadas a cada tecla, las cuales pod\u00edan introducirse pulsando Shift, Control y una tecla. <\/li>\n\n\n\n<li>La segunda plantilla incluye los 49 caracteres gr\u00e1ficos asignados a cada tecla, los cuales pod\u00edan generarse pulsando Control, B y la tecla.<\/li>\n<\/ul>\n\n\n\n<p>El MPF-II no es totalmente compatible con el Apple II debido a las siguientes diferencias:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>El MPF-II no tiene el modo texto del Apple II.  Todo el texto se dibuja en pantalla mediante software, en lugar de ser generado por hardware como en el Apple II. En la \u00e9poca era la \u00fanica forma, a precio razonable, de generar caracteres chinos en pantalla.<\/li>\n\n\n\n<li>El MPF-II, al igual que el Apple II, tiene dos buffers para gr\u00e1ficos, pero el segundo lo tiene en direcciones de memoria diferentes.<\/li>\n\n\n\n<li>El interface de teclado del MPF-II es mas simple que el del Apple, y adem\u00e1s est\u00e1 mapeado en direcciones diferentes a las del Apple II, por lo que es pr\u00e1cticamente imposible jugar a ning\u00fan juego.<\/li>\n\n\n\n<li>El MPF-II no tiene interface de joystick, y este se simula con en el teclado.<\/li>\n\n\n\n<li>El conector de expansi\u00f3n no es compatible, al no incluir la l\u00ednea de -12V, y puede que algunas otras se\u00f1ales, por lo que muchas de las tarjetas est\u00e1ndar del Apple II, incluyendo la controladora de discos Disk ][, no funcionan o lo hacen incorrectamente.<\/li>\n\n\n\n<li>El BASIC incluye 4 nuevos comandos: \n<ul class=\"wp-block-list\">\n<li>PTRON y PTROFF que activan\/desactivan la salida a la impresora.<\/li>\n\n\n\n<li>MA y MP que intercambia los modos de pantalla Hires 1 e Hires 2.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>Al igual que el Apple ][+, el MPF-II usa solamente integrados TTL, excepto un chip dise\u00f1ado a medida HAL14L8. La ROM es bastante similar a la del Apple II, ya que muchas de las llamadas a rutinas de la ROM del MPF-II producen los mismos resultados que en el Apple II.<\/p>\n\n\n\n<figure class=\"wp-block-table alignwide is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th colspan=\"4\">Caracter\u00edsticas t\u00e9cnicas<\/th><\/tr><\/thead><tbody><tr><td><strong>Nombre<\/strong><\/td><td colspan=\"3\">Micro-Professor MPF-II<\/td><\/tr><tr><td><strong>Fabricante<\/strong><\/td><td colspan=\"3\">Multitech<\/td><\/tr><tr><td><strong>Pais<\/strong><\/td><td colspan=\"3\"><\/td><\/tr><tr><td><strong>A\u00f1o<\/strong><\/td><td colspan=\"3\">1982<\/td><\/tr><tr><td><strong>CPU<\/strong><\/td><td colspan=\"3\">MOS Technology 6502 @ 1.023 MHz<\/td><\/tr><tr><td><strong>RAM<\/strong><\/td><td colspan=\"3\"><\/td><\/tr><tr><td><strong>ROM<\/strong><\/td><td colspan=\"3\"><\/td><\/tr><tr><td><strong>Modos de texto<\/strong><\/td><td colspan=\"3\"><\/td><\/tr><tr><td><strong>Modos Gr\u00e1ficos<\/strong><\/td><td colspan=\"3\"><\/td><\/tr><tr><td><strong>Lenguaje integrado<\/strong><\/td><td colspan=\"3\"><\/td><\/tr><tr><td><strong>Sistemas Operativos<\/strong><\/td><td colspan=\"3\"><\/td><\/tr><tr><td><strong>Puertos E\/S<\/strong><\/td><td colspan=\"3\"><\/td><\/tr><tr><td><strong>Fuente de alimentaci\u00f3n<\/strong><\/td><td colspan=\"3\"><a href=\"https:\/\/www.mundocaos.com\/?p=266#MULTITECH\" data-type=\"post\" data-id=\"266\" target=\"_blank\" rel=\"noreferrer noopener\">Multitech PS 004<\/a><\/td><\/tr><tr><td><strong>Perif\u00e9ricos<\/strong><\/td><td colspan=\"3\"><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-base-color has-text-color has-background has-link-color has-large-font-size wp-elements-05edc5e5252bec4f645a526538786abb\" style=\"border-radius:52px;background-color:#0000ff;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">COLECCI\u00d3N<\/h3>\n\n\n\n<p>Mi MPF-II enciende y pita (como los Apple II), pero no hay se\u00f1al de v\u00eddeo. He comprobado primero las salidas de la fuente de alimentaci\u00f3n. Todas las tensiones son correctas salvo la de -5V, que apenas da -3V.<\/p>\n\n\n\n<p>Tras cambiar los condensadores de la fuente de alimentaci\u00f3n, ya da todas las tensiones bien. Lo compruebo conectando la salida de v\u00eddeo compuesto a mi monitor Philips CM-8833, y funciona perfectamente.<\/p>\n\n\n\n<figure class=\"wp-block-table alignwide is-style-stripes has-medium-font-size\"><table class=\"has-cyan-bluish-gray-background-color has-background has-fixed-layout\"><thead><tr><th colspan=\"4\"><strong>Multitech Micro-Professor MPF-II<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Modelo<\/strong><\/td><td colspan=\"3\">MPF-II<\/td><\/tr><tr><td><strong>Versi\u00f3n<\/strong><\/td><td colspan=\"3\">PAL-G,H Channel 36<\/td><\/tr><tr><td><strong>S\/N<\/strong><\/td><td colspan=\"3\">G5510754<\/td><\/tr><tr><td><strong>MB<\/strong><\/td><td colspan=\"3\">MPF-IIP<\/td><\/tr><tr><td><strong>MB S\/N<\/strong><\/td><td colspan=\"3\"> PB8203910-5<\/td><\/tr><tr><td><strong>Funciona<\/strong><\/td><td colspan=\"3\">SI<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-base-color has-text-color has-background has-link-color has-large-font-size wp-elements-172e4022c6489b6658aefbab9e9b557f\" style=\"border-radius:52px;background-color:#0000ff;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">SOFTWARE<\/h3>\n\n\n\n<p>Micro-Nurse<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-base-color has-text-color has-background has-link-color has-large-font-size wp-elements-d9f6052667b862ca28ff098ead9edd4b\" style=\"border-radius:52px;background-color:#0000ff;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">DOCUMENTACI\u00d3N<\/h3>\n\n\n\n<div id=\"filebird-document-library\">\n   <div class=\"njt-fbdl\">\n      <script type=\"application\/json\" 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                  <div class=\"fbdl-grid-item\">\n                        <div class=\"fbdl-grid-item-info\">\n                                                        <div\n                                class=\"fbdl-grid-thumbnail fbdl-thumbnail-cover\">\n                                <img decoding=\"async\" width=\"232\" height=\"300\" src=\"https:\/\/www.mundocaos.com\/wp-content\/uploads\/2025\/09\/Micro-Professor-MPF-II-Users-Manual-pdf-232x300.jpg\" class=\"attachment-medium size-medium\" alt=\"\" \/>                            <\/div>\n                                                        <div class=\"fbdl-grid-detail\">\n                                <div>\n                                    <a href=\"https:\/\/www.mundocaos.com\/wp-content\/uploads\/2025\/09\/Micro-Professor-MPF-II-Users-Manual.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"                                        class=\"fbdl-title\">\n                                        Micro-Professor-MPF-II-Users-Manual                                    <\/a>\n                                <\/div>\n                                                                                                <span\n                                    class=\"fbdl-file-size\">21 MB<\/span>\n                            <\/div>\n                        <\/div>\n                        <a href=\"https:\/\/www.mundocaos.com\/wp-content\/uploads\/2025\/09\/Micro-Professor-MPF-II-Users-Manual.pdf\" target=\"_blank\" download\n                            rel=\"noopener noreferrer\"\n                            class=\"fbdl-download-button\">Download<\/a>\n                    <\/div>\n                                    <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>                                    <\/div>\n         <div class=\"fbdl-pagination\"><\/div>      <\/div>\n   <\/div>\n<\/div>\n\n\n<p>Esta es la lista de condensadores y diodos de la fuente de alimentaci\u00f3n.<\/p>\n\n\n\n<figure class=\"wp-block-table alignwide is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>C1<\/td><td>100uF\/400V<\/td><\/tr><tr><td>C2, C3, C16<\/td><td>47nF\/275V X2<\/td><\/tr><tr><td>C7<\/td><td>100uF\/10V<\/td><\/tr><tr><td>C9<\/td><td>100uF\/16V<\/td><\/tr><tr><td>C10, C11, C13, C15<\/td><td>1000uF\/16V<\/td><\/tr><tr><td>C12 (*)<\/td><td>330uF\/25V<\/td><\/tr><tr><td>D4, D5, D7<\/td><td>SB340<\/td><\/tr><tr><td>D6<\/td><td>1N4005<\/td><\/tr><tr><td colspan=\"2\">* En la placa vienen 2 condensadores de la misma capacidad etiquetados C12<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-base-color has-text-color has-background has-link-color has-large-font-size wp-elements-5bb35994f74667e3b94f024bf331522b\" style=\"border-radius:50px;background-color:#0000ff;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">URL&#8217;s<\/h3>\n\n\n\n<p><a href=\"https:\/\/github.com\/vitasam\/mpf-ii_retro_6502\" target=\"_blank\" rel=\"noreferrer noopener\">MPF-II Micro-Professor 8-bit 6502 Retro Computer<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El Micro-Professor MPF-II es uno de los primeros clones de Apple II. Fabricado en 1982 por Multitech (posteriormente Acer), tiene una carcasa rectangular del tama\u00f1o de un libro (18x25x3 cm) y un teclado de 48 teclas de tipo calculadora. Ten\u00eda disponible opcionalmente un teclado de tama\u00f1o completo (!!!!): 55 teclas de goma, similares a las [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":458,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,13,17],"tags":[6,15,50],"class_list":["post-421","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apple-ii","category-ordenadores","category-ordenadores-varios","tag-apple-ii","tag-apple2clon","tag-multitech"],"_links":{"self":[{"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=\/wp\/v2\/posts\/421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=421"}],"version-history":[{"count":53,"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=\/wp\/v2\/posts\/421\/revisions"}],"predecessor-version":[{"id":8426,"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=\/wp\/v2\/posts\/421\/revisions\/8426"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=\/wp\/v2\/media\/458"}],"wp:attachment":[{"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mundocaos.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}