# SPOT THE FLAW: Something isn't quite... positive

**URL:** <https://sierraconnect.protoexpress.com/t/spot-the-flaw-something-isnt-quite-positive/4317>\
**Category:** PCB Design Challenges\
**Tags:** spot-the-flaw\
**Created:** [July 29, 2026, 3:21pm UTC](https://sierraconnect.protoexpress.com/t/spot-the-flaw-something-isnt-quite-positive/4317 "2026-07-29T15:21:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![lucy.sierracircuits](https://sea2.discourse-cdn.com/sierraconnect/user_avatar/sierraconnect.protoexpress.com/lucy.sierracircuits/32/8_2.png) [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Post date:** [July 29, 2026, 3:21pm UTC](https://sierraconnect.protoexpress.com/t/spot-the-flaw-something-isnt-quite-positive/4317/1 "2026-07-29T15:21:08Z")

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![spot the flaw](https://global.discourse-cdn.com/sierraconnect/original/1X/d1006023b96b623fdd588eb2a2c44a9046860205.jpeg)

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**Author:** ![timothy.phillips](https://avatars.discourse-cdn.com/v4/letter/t/d78d45/32.png) [@timothy.phillips](https://sierraconnect.protoexpress.com/u/timothy.phillips)\
**Post date:** [July 29, 2026, 4:22pm UTC](https://sierraconnect.protoexpress.com/t/spot-the-flaw-something-isnt-quite-positive/4317/2 "2026-07-29T16:22:53Z")

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Silkscreen + indicator incorrectly placed by negative pin.

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<div class="post-metadata">

**Author:** ![lucy.sierracircuits](https://sea2.discourse-cdn.com/sierraconnect/user_avatar/sierraconnect.protoexpress.com/lucy.sierracircuits/32/8_2.png) [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Post date:** [July 31, 2026, 7:17pm UTC](https://sierraconnect.protoexpress.com/t/spot-the-flaw-something-isnt-quite-positive/4317/3 "2026-07-31T19:17:22Z")

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Answer: Polarity mistakes on diodes, capacitors, LEDs.