{"product_id":"destest-switch-v2-commodore-64-64c-c128-ram-diagnostic-cartridge-copy","title":"DesTEST Switch v2 w\/CASE Commodore 64 64c c128 Ram Diagnostic Cartridge","description":"\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 30px;\"\u003e\u003cstrong\u003eToTs\u003c\/strong\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 30px;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eRETRO\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan style=\"color: rgb(153, 0, 0); font-size: 30px;\"\u003e\u003cstrong\u003eCommodore 64 64c c128 c128D Ram Diagnostic Cartridge \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eworks with commodore 64 and commodore 128\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(19, 79, 92);\"\u003e\u003cspan style=\"font-size: 30px;\"\u003eDesTEST Switch v2 w\/CASE\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\n\u003cspan\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eNew Design Case - Improved Durability and Long Life\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eGold Plated Contacts\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eENIG PCB\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eReset Button w\/LED's\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eMax Mode Operation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eand Full 64k Mode Operation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eMarch-B  Ram Testing Algorithm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eNo Dependence on the ROM's, CIA's or SID\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eROM checksum verification (if installed)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eCIA TOD consistency verification\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003eFrom \u003cu\u003e\u003cem\u003efactorofmatt\u003c\/em\u003e\u003c\/u\u003e......\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1 role=\"heading\" aria-level=\"1\" data-ux=\"ContentHeading\" data-aid=\"CONTENT_MEDIA_HEADLINE1_RENDERED\" data-promoted-from=\"4\" data-order=\"0\" data-typography=\"HeadingDelta\" class=\"x-el x-el-h1 c1-1 c1-2 c1-1m c1-1n c1-87 c1-31 c1-32 c1-25 c1-v c1-4x c1-78 c1-88 c1-u c1-b c1-89 c1-7c c1-3r c1-7d c1-7f c1-7g c1-7h\"\u003eDesTest MAX-Switch\u003c\/h1\u003e\n\u003cdiv data-ux=\"ContentText\" data-aid=\"CONTENT_MEDIA_DESCRIPTION1_RENDERED\" data-typography=\"BodyAlpha\" class=\"x-el c1-1 c1-2 c1-1m c1-1n c1-4d c1-25 c1-v c1-50 c1-8a c1-8b c1-8c c1-8d c1-8e c1-8f c1-8g c1-8h c1-8i c1-8j c1-8k c1-8l c1-8m c1-8n c1-8o c1-8p c1-8q c1-8r c1-8s c1-8t c1-8u c1-8v c1-8w c1-8x c1-8y c1-8z c1-90 c1-91 c1-92 c1-93 c1-94 c1-95 c1-2z c1-b c1-96 c1-c c1-3r c1-d c1-e c1-f c1-g x-rt\"\u003e\n\u003cp\u003e\u003cspan\u003eThe MAX-mode of the C64 expansion-port is truly a marvel since it allows the program on the cartridge to run right from the get-go bypassing the kernal and its assumptions about working memory.  This convenience, however, comes at a cost:  All but the bottom 4K of memory plus the kernal, BASIC and character ROMs are not available.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThat's why DesTestMAX only tests 4K!  That's all it can test.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe DesTest MAX-Switch (or just the 'Switch) solution aims to fix this limitation!\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe custom DesTest MAX-Switch cartridge adds the capability to switch (hence the name) between the MAX-mode and regular cartridge-mode under program control.  The new DesTest Software allows the following features:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull 64K memory test using the March-B algorithm.\u003c\/li\u003e\n\u003cli\u003eNo dependence on the ROMs, CIAs or SID: they can be removed.\u003c\/li\u003e\n\u003cli\u003eROM checksum verification (if installed).\u003c\/li\u003e\n\u003cli\u003eCIA TOD consistency verification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe DesTest MAX-Switch hardware includes provisions for the following:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower LED.  Most of the time when diagnosing or repairing a C64, the keyboard is removed along with the Power LED.  The DesTest MAX-Switch cartridge includes a simple power LED to avoid mistakes like removing or inserting ICs with the power on.\u003c\/li\u003e\n\u003cli\u003eReset Switch and LED.  A faulty reset-circuit in a C64 can prevent it starting-up properly.  A reset-switch can temporarily bypass a faulty reset-circuit and the LED gives a visual indication if something is wrong!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003eDimensions: 64 x 50x 18.5 mm\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWeight: ~51grams\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eColor: Tool Teal\/Black\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eGuaranteed tested and working when Shipped to you. \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cem\u003e\u003cu\u003eSold From USA, PHOENIX AZ\u003c\/u\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cem\u003e\u003cu\u003eAny Questions, do not hesitate to ASK. \u003c\/u\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eCheck out the Switch in action ....\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/wfv_J3iYPNI?si=8U_z9GWmVVR1LLwn\u0026amp;start=44\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"ToTsRC\/ToTsRETRO","offers":[{"title":"Default Title","offer_id":49107930775795,"sku":"DS_Switchv2CASE","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/5239\/3459\/files\/DesTestSwitchwcase.png?v=1779407585","url":"https:\/\/totsrc.com\/products\/destest-switch-v2-commodore-64-64c-c128-ram-diagnostic-cartridge-copy","provider":"ToTsRC\/ToTsRETRO","version":"1.0","type":"link"}