Editing Atari 800XE Capacitor Replacement Guide (section)

== Capacitor List — C070067 Board ==

The C070067 is the original and most common XE motherboard. The following electrolytic capacitors are present:

{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+'''Atari 800XE / 65XE — C070067 Board Electrolytic Capacitors'''
! Ref. Designator !! Capacitance !! Voltage Rating !! Type !! Function / Location
|-
| C1 || 470 µF || 16 V || Radial || Main +5 V input filter — primary power smoothing
|-
| C2 || 22 µF || 16 V || Radial || Power decoupling — ANTIC/GTIA area
|-
| C3 || 22 µF || 16 V || Radial || Power decoupling — CPU/ROM area
|-
| C10 || 22 µF || 16 V || Radial || Power decoupling — RAM area
|-
| C19 || 4.7 µF || 35 V || Radial || Video output coupling — composite video path
|-
| C20 || 4.7 µF || 35 V || Radial || Video chroma coupling — monitor port
|-
| C22 || 4.7 µF || 35 V || Radial || Video luminance coupling — monitor port
|-
| C24 || 10 µF || 16 V || Radial || Audio output coupling — amplifier stage
|-
| C50 || 10 µF || 16 V || Radial || Reset circuit timing capacitor
|-
| C71 || 22 µF || 16 V || Radial || SIO / serial port decoupling
|-
| C98 || 10 µF || 16 V || Radial || Power decoupling — peripheral interface area
|}

'''Notes:'''
* All capacitors on the C070067 board are through-hole radial electrolytics.
* C1 (470 µF) is the largest and most critical — a failed C1 causes widespread power instability.
* C24 (10 µF audio coupling) is a common failure point, causing weak or distorted sound.
* C19, C20, and C22 (4.7 µF/35 V) affect video quality — failed caps cause washed-out colours or missing chroma/luma.