Editing Atari 800 Capacitor Replacement Guide (section)

== Visual Inspection & Failure Signs ==

Before recapping, carefully examine all electrolytic capacitors for:

* '''Bulging or domed tops''' – Indicates internal gas build-up and imminent failure.
* '''Leaking electrolyte''' – Brown, black, or green residue at the base or on the PCB.
* '''Corrosion or PCB staining''' – Discolouration or green/white crust around capacitor leads.
* '''Unusual odours''' – A fishy or acrid smell often signals capacitor leakage.
* '''System symptoms''' – Random lockups, video flicker, audio hum, or power-on issues.

If '''any''' capacitor shows signs of failure, replace '''all''' electrolytics on the mainboard and power supply for best results.