Does Coldness Really Fix Electronics or is There Another Trick?

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SUMMARY

The forum discussion centers on the effectiveness of cooling electronics, specifically an Amazon Fire TV device, to temporarily restore functionality. Users highlight that cooling can reduce semiconductor leakage currents, but caution against condensation risks that may damage internal components. Recommendations include using air cooling methods, such as fans or vortex tube coolers, instead of refrigeration to avoid moisture-related issues. The conversation also touches on the longevity of electronics and the impact of temperature fluctuations on component life, particularly electrolytic capacitors.

PREREQUISITES
  • Understanding of semiconductor physics and leakage currents
  • Knowledge of electronic component failure modes, particularly electrolytic capacitors
  • Familiarity with cooling methods for electronics, including air cooling and vortex tube technology
  • Awareness of the risks associated with moisture and condensation in electronic devices
NEXT STEPS
  • Research the effects of temperature on semiconductor performance and longevity
  • Learn about the design and failure mechanisms of electrolytic capacitors
  • Explore air cooling solutions for electronics, including vortex tube coolers
  • Investigate safe methods for diagnosing and repairing electronic devices without risking damage
USEFUL FOR

Electronics enthusiasts, repair technicians, and anyone interested in maintaining or troubleshooting consumer electronics, particularly those experiencing overheating or intermittent failures.

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  • #32
Tom.G said:
IIRC when Li batteries are deeply discharged they WILL NOT accept a charge.

Ahh, found it! There is a built-in protection circuit.
https://batteryuniversity.com/learn/article/low_voltage_cut_off

Cheers,
Tom
So the link above shows the absence of "boost" circuitry intended for revival of deeply discharged battery is common in mobile chargers. Therefore, more likelihood of "poorly designed charging controller" as diagnosis of initial problem.
 
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  • #33
Coldness fixes electronics? No way - what fixes electronics is a good hard slap! (experience from 15 years as a part-time electronics serviceman).
 
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  • #34
Svein said:
Coldness fixes electronics? No way - what fixes electronics is a good hard slap! (experience from 15 years as a part-time electronics serviceman).
A hard slap to the top of the electronics enclosure actually helped vacuum tube devices. Apparently the jolt helped seat pins loosened by normal on/hot off/cold cycles. This was also when we waited for electronics to "warm up".
 

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