Difference between revisions of "Pinecil Hardware Debugging2"

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This page is work-in-progress and is user-contributed content.
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{| class="wikitable" style="margin:auto"
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! Issue !! Cause/Symptoms !! Possible Solutions
|-
|rowspan="3"|Pinecil doesn't power on at all 
|Faulty PSU
|Check your PSU with another tool or a multimeter
|-
|Faulty cable
|
* Check cable with another device
* Use a different cable
|-
|Internal problem with power
|Use different kind of PSU (if you're using a barrel jack one, try a Type-C one, and vice-versa)
|-
| Pinecil shuts down when connected to a Type-C PSU and trying to request a higher voltage (Title needs a bit more clarification)
|Out-of-date firmware
|Update firmware - factory firmware has quite a few USB-PD problems, which the newer firmwares fix. See the [https://github.com/Ralim/IronOS/blob/master/Documentation/Flashing.md#pinecil-pine64 update documentation on GitHub]
|-
| Pinecil randomly resets when touching solder or doing other things
| Using PinePower or some other non-grounded PSU
|This is likely to be a "lack of grounding" problem. When using Pinepower, you can unplug the figure-8 AC cable plug (on the back), rotate it 180 degrees and plug it back in - this tends to remedy the problem [https://github.com/Ralim/IronOS/issues/975 (insights)]
|-
| Doesn't power on after applying 24V to the barrel jack
|Damaged USB chip
|The FUSB302 might have gotten damaged and shorted an internal power rail
* Use a hot air gun to remove the FUSB from the board. You can leave the iron without the FUSB302 IC, or you can find and buy a replacement.
* Without the FUSB IC present, you will lose USB-PD compatibility - the Type-C jack will not power your Pinecil with a C-to-C cable, or from a PD-capable PSU with attached type-C cable (laptop PSUs)
* You will still have USB QC support without the FUSB IC, and all the other features will keep working!
|-
|rowspan="3"|Pinecil tip heats up too much, starts to glow and [REDACTED]
| Heats up when plugged in, without pressing any buttons
| Likely a FET failure - the FET can be replaced. by using a hot air station or a soldering iron.
|-
| Heats up after pressing the button
| Likely to be bad soldering of the thermocouple amplifier IC. Resoldering the thermocouple amplifier should fix this problem.
|-
|colspan="2"| '''Either way, you will want to replace the tip after it's heated up to the point of glowing, as the surface coating is likely to have gotten compromised.'''
|}
 
= Debugging instructions =
 
== Screen FPC solder joint debugging ==
  - REDACTED
 
== Checking whether the MCU and main power rails are alive ==
  - DFU mode REDACTED

Latest revision as of 22:55, 15 April 2022

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