Colourphone Troubleshooting
Last modified: 2026-08-24
General resources
The CR1 diode has a black stripe instead of the yellow one shown in the guide
Diode marking varies by manufacturer and batch, so a black stripe in place of yellow is a labeling inconsistency, not a different part. Align whichever colored stripe you have with the white line on the PCB, the same as you would with the documented yellow-stripe part.
A capacitor's color or printed value doesn't match what you expected
Capacitor colors can vary between batches (yellow versus blue, for example), and some printed values are in pF rather than the more familiar farad-based units you might expect (a value like "22k" that's actually pF, not ohms). Check the value itself against the sorting guide's value-to-color mapping before assuming a part is missing or wrong.
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