Atari 800XL: Difference between revisions
Rewritten against the Atari 800XL Field Service Manual: +5 V only through a 7-pin DIN, +/-2%, 1.2 A max, no +12 V rail and no on-board regulator; ROM corrected to 24 KB (16 KB OS + 8 KB BASIC); full IC location map with '(not used)' positions flagged; monitor jack output levels added; corrected the garbled '256 hues x 16 luminance' palette text; real <ref> citations |
Add connector reference designators (J4, J5/J6, J7, J8) from Atari's parts list |
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== Input, output and expansion == | == Input, output and expansion == | ||
* '''Cartridge slot''' - 30-pin connector (C014389)<ref name="fsm800xl" /> | * '''Cartridge slot''' - 30-pin connector (J4, C014389)<ref name="fsm800xl" /> | ||
* '''SIO port''' - 13-pin right-angle connector (J1, C012995), maximum 19.2 kbaud<ref name="fsm800xl" /> | * '''SIO port''' - 13-pin right-angle connector (J1, C012995), maximum 19.2 kbaud<ref name="fsm800xl" /> | ||
* '''Two controller jacks''' - 9-pin right-angle (C010448); pin 7 is +5 V and pin 8 ground<ref name="fsm800xl" /> | * '''Two controller jacks''' - 9-pin right-angle (J5, J6, C010448); pin 7 is +5 V and pin 8 ground<ref name="fsm800xl" /> | ||
* '''Monitor jack''' - 5-pin DIN (J2, C014388)<ref name="fsm800xl" /> | * '''Monitor jack''' - 5-pin DIN (J2, C014388)<ref name="fsm800xl" /> | ||
* '''Parallel Bus Interface''' - 50-pin edge connector on the rear | * '''Parallel Bus Interface''' - 50-pin edge connector on the rear | ||
* '''Power in''' - 7-pin DIN (C061838)<ref name="fsm800xl" /> | * '''Power in''' - 7-pin DIN (J7, C061838)<ref name="fsm800xl" /> | ||
* '''Keyboard header''' - 24-pin (C061793)<ref name="fsm800xl" /> | * '''Keyboard header''' - 24-pin (J8, C061793)<ref name="fsm800xl" /> | ||
The XL machines have only '''two''' controller jacks where the 400 and 800 had four. The PIA's | The XL machines have only '''two''' controller jacks where the 400 and 800 had four. The PIA's | ||
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== Power == | == Power == | ||
The 800XL takes '''+5 V DC through a 7-pin DIN connector''' on the rear panel, Atari part | The 800XL takes '''+5 V DC through a 7-pin DIN connector''', J7 on the rear panel, Atari part | ||
'''C061838'''. The external supply accepts 110 V AC nominal and provides '''+5 V DC, +/-2%, | '''C061838'''. The external supply accepts 110 V AC nominal and provides '''+5 V DC, +/-2%, | ||
rated 1.2 A maximum'''.<ref name="fsm800xl" /> | rated 1.2 A maximum'''.<ref name="fsm800xl" /> | ||