Editing Commodore 64C Capacitor Replacement Guide (section)

== Commodore 64C Capacitor List ==

The Commodore 64C (board Assy 250469 and variants) uses a revised, cost-reduced PCB with fewer and smaller electrolytic capacitors compared to earlier C64 models. Always cross-check values with your board’s silkscreen, as minor revisions exist.

<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+'''Commodore 64C (Assy 250469) Electrolytic Capacitors'''
! Ref !! Capacitance !! Voltage !! Circuit / Rail !! Notes
|-
| C88 || 2,200 µF || 10 V || Main +5 V bulk || Main filter for logic supply
|-
| C89 || 1,000 µF || 10 V || VIC-II local decoupling || Sits near video chip (8565/8562)
|-
| C90 || 330 µF || 10 V || SID 8580 analogue +9 V || Audio rail filter
|-
| C91 || – || – || – || Not fitted (12 V rail deleted)
|-
| C15 || 10 µF || 16 V || Reset RC timer || Ensures reliable power-on reset
|-
| C38 || 47 µF || 16 V || Audio DC block || Lower value for 8580 SID bias
|-
| C70 || 2.2 µF || 50 V || Chroma coupling (RF modulator) || Small foil can, optional if modulator removed
|-
| C71, C72 || 47 µF || 16 V || RF modulator 5 V/audio buffer || Two cans inside modulator can
|}

''If your board is a rare 250469-Aldi variant with a 6581 SID, it may include C92 (470 µF, 16 V) for a linear 12 V regulator. Replace this if present.''

=== SMD Capacitors ===
The standard 64C PCB does '''not''' use SMD electrolytics; all are through-hole types. If you encounter SMD cans, your board may be a late third-party or repair replacement—verify values before ordering.