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Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong

Posted: Fri Oct 11, 2019 4:11 pm
by danak6jq
Thank you!

Dana

Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong

Posted: Wed May 20, 2020 4:54 am
by Horst Schlawutzke
Hello there and thnks for the topic,
in order to remove the caps, would you hint me to locate them?
I can't find a pcb layout, so in the moment I am stuck.

Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong

Posted: Wed May 20, 2020 11:31 am
by bobolink
I’m interested in this topic as well.

Dana,
Does the AI-Thinker board have these parts?

Bob

Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong

Posted: Wed May 20, 2020 3:33 pm
by danak6jq
Horst Schlawutzke wrote:
Wed May 20, 2020 4:54 am
Hello there and thnks for the topic,
in order to remove the caps, would you hint me to locate them?
I can't find a pcb layout, so in the moment I am stuck.
It's true the PCB has no silkscreen; fortunately, the "ESP32-LyraT Getting Started Guide" contains a link to a component layout:

https://dl.espressif.com/dl/schematics/ ... layout.pdf

Locate and remove C62, C64, C65 and C66. It is perhaps easiest to find these initially using text search in the component layout PDF.

Cheers,
Dana

Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong

Posted: Wed May 20, 2020 3:34 pm
by danak6jq
bobolink wrote:
Wed May 20, 2020 11:31 am
I’m interested in this topic as well.

Dana,
Does the AI-Thinker board have these parts?

Bob
I can confirm that the AI-Thinker dev boards that I have, do not have these parts.

Cheers,
Dana

Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong

Posted: Wed May 20, 2020 6:31 pm
by danak6jq
danak6jq wrote:
Wed May 20, 2020 3:33 pm

It's true the PCB has no silkscreen; fortunately, the "ESP32-LyraT Getting Started Guide" contains a link to a component layout:

https://dl.espressif.com/dl/schematics/ ... layout.pdf

Locate and remove C62, C64, C65 and C66. It is perhaps easiest to find these initially using text search in the component layout PDF.

Cheers,
Dana
This image may help.

https://drive.google.com/open?id=1XFEvd ... l11c7Yah-F

Cheers,
Dana

Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong

Posted: Thu May 21, 2020 8:02 pm
by Horst Schlawutzke
danak6jq wrote:
Wed May 20, 2020 6:31 pm

This image may help.

Cheers,
Dana
Dana, my hero!
(probably the best answer I ever got from a forum)

regards Horst

Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong

Posted: Fri May 22, 2020 3:48 am
by danak6jq
Horst Schlawutzke wrote:
Thu May 21, 2020 8:02 pm

Dana, my hero!
(probably the best answer I ever got from a forum)

regards Horst
Aw, you'll make me blush! I'm glad that I could help.

Cheers,
Dana