My "rockpro64" is different from the public circuit diagram.

[tllim]

"ROCKPro64 Schematic v2.1 (Second Batch Production Release)"
http://files.pine64.org/doc/rockpro64/ro...21-SCH.pdf

Question 1)
In the above published circuit diagram (Sheet of "CODEC/Head phone")
"R225 = DNP,   R226 = 0R" is presented.

However, the result of examining my "rockpro64" is
"R225 = 10kΩ, R226 = DNP".

Please tell me whether this difference is due to the production lot or just the mistake of the circuit diagram.
*) I think that it is merely a mistake in the circuit diagram.


Question 2)
Connection of headphone-jack = "J16:pj_35A063" is obviously wrong.
*) I think that the top and bottom are connected in reverse.

Please introduce the datasheet of "pj_35A063" or present the correct circuit diagram.
I searched the datasheet for "pj_35A063", but I could not find it.

As for the signal name "HPGND / HPOL / HPOR", its connection relation can be inferred.
However, as for the signal name "PHONE_DET / MIC_IN 2 P",
since the specification of "pj_35A063" is unknown,
it is impossible to infer the correct connection relation.

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My "rockpro64" is a "RAM=4GB" version, and it arrived in 2018-August.
I think that it is probably the "second batch production" lot.

Your board should be second batch. The ROCKPro64 4GB and 2GB board are identical except LPDDR4 memory configuration.

Thanks your finding, I have feedback to hardware engineer.