Editing Atari 800XL Capacitor Replacement Guide (section)

== Atari 800XL Capacitor List ==

The 800XL contains both through-hole and (in later revisions) a few SMD electrolytic capacitors. Values may vary slightly between PCB revisions (e.g., CO61563, CO61585), but the following list covers all common variants. Always verify against your board’s silkscreen.

<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+'''Atari 800XL Electrolytic Capacitor Specifications'''
! Ref. Designator !! Capacitance !! Voltage !! Purpose / Rail !! Notes
|-
| C56 || 470 µF || 16 V || Main +5 V input filter || Largest can; near power jack
|-
| C58 || 220 µF || 16 V || +12 V regulator input || Near 7812 regulator (if fitted)
|-
| C59 || 100 µF || 16 V || +12 V output filter || For SIO and audio circuits
|-
| C60 || 10 µF || 25 V || Audio coupling || Near audio output
|-
| C61 || 1 µF || 50 V || Video chroma coupling || Small axial or radial
|-
| C62 || 10 µF || 16 V || Reset circuit || Near CPU
|-
| C63 || 10 µF || 16 V || SIO input filter || By SIO connector
|-
| C65 || 1 µF || 50 V || Video luminance coupling || Small can, near modulator
|-
| C66 || 10 µF || 16 V || +5 V local decoupling || By DRAM array
|-
| C67 || 10 µF || 16 V || +5 V local decoupling || By ANTIC/GTIA
|-
| C68 || 10 µF || 16 V || +5 V local decoupling || By POKEY
|-
| C69 || 10 µF || 16 V || +5 V local decoupling || By MMU/FREDDIE (if fitted)
|-
| C70 || 10 µF || 16 V || +5 V local decoupling || By BASIC ROM
|-
| C71 || 10 µF || 16 V || +5 V local decoupling || By OS ROM
|-
| C72 || 10 µF || 16 V || +5 V local decoupling || By keyboard connector
|-
| C73 || 10 µF || 16 V || +5 V local decoupling || By expansion port
|}

''Some late 800XLs (especially Hong Kong and Taiwan builds) use SMD electrolytics for C61 and C65. Replace with modern SMD tantalum or solid-polymer types if desired.''