Editing Atari 65XE (Poland) (section)

== The machines ==

Polish-market 65XEs are standard PAL machines and carry no Polish-specific hardware. The
hardware is documented in Atari's field service manual for the XE line, which covers the 65XE
directly.<ref name="fsm130">Atari, ''130XE Personal Computer Field Service Manual''. Section 1 (theory of operation, chip pin assignments, external power supply schematic and rating, connector pinouts), Section 2 (schematics and silkscreens for all seven XE board assemblies), Section 3 (self test and production-test diagnostic error codes). Despite its title it covers the 65XE, the 800XE and the XE Game System as well. Hosted on this wiki: [[:File:Atari 130XE Field Service Manual.pdf]].</ref>

* '''6502C''' at 1.77 MHz (PAL), with ANTIC, GTIA, POKEY, the PIA, FREDDIE and the MMU1
  (C061618)<ref name="fsm130" />
* '''64 KB RAM''' - eight 64K x 1 devices on the CO70025 and CA20097 assemblies, two 64K x 4
  devices on the later CA200519 assembly<ref name="fsm130" />
* '''24 KB ROM''' - 16 KB operating system plus 8 KB Atari BASIC Rev. C<ref name="fsm130" />
* '''+5 V DC''' through a '''7-pin DIN''' power jack, from a brick containing the transformer,
  bridge rectifier, LM78S05 regulator, 4700 uF reservoir and 100 uF output capacitor, rated
  5 V +/-5% at 1.5 A maximum. There is no regulator on the board.<ref name="fsm130" />
* Master oscillator '''14.187576 MHz''' (PAL)<ref name="fsm130" />

Atari documents '''three''' 65XE board assemblies - CO70025, CA20097 and CA200519 - and the
CA200519 assembly is shared with the [[Atari 130XE|130XE]] and the
[[Atari 800XE|800XE]].<ref name="fsm130" /> Claims that Polish units used four distinct revisions, or that
later units were 130XE boards with half the RAM fitted, could not be corroborated against any
published source and are not repeated here; identify the board in front of you from its assembly
number and its fitted RAM devices.