QA-550 SD card 16/44.1 WAV transport

try to google "40pin header rainbow", below sample from my local webstore:
https://m.tokopedia.com/ujungsolder/jumper-pelangi-40-pin-male-female
https://m.tokopedia.com/ujungsolder/pin-header-male-tulang-ikan

i put aditional resistor 1k5 on pin 3 V0 to reduce contrast, use some oscon sg 47uf and bg pk, clock to tentlabs.

got lcd 40x2 from ebay, it' huge. i'm expecting to get a new firmware for this displayed, but qls reply " Sorry, This product has been discontinued for a long time, and the original code design staff has been replaced " so 16x2 is the maximum display you can get, most important thing is to keep this player to work as long as possible
 

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Hello to all.
sorry my English.
after reading these pages I decided to get hold of the QA550.
I would like to make some changes to improve.
use I2S, SPDIF remove chips, make new power with LT3080, new synchronous clock and reclocking.
The most difficult thing for me is to replace the clock and use synchronous I2S.
I saw what he did EUVL and I would do it myself but I have not figured out how to do it.
anyone can help me ?
bye thank you
 
Someone dug out this thread and asked me what I changed on the original.

The simple answer is nothing, other than remove the XO.
The XO is placed near the ES9023 and then fed back to the QA using the MCLK pin of the I2S.

And yes, sounds really gorgious.
But that of course also depends on your DAC.


Cheers,
Patrick
 
Hello.
I was interested in this player but then I didn't buy it, now I'm still interested in it but first I need to know something.
I appeal to those who own and use this player.
is there the automatic infinite repeat function of the piece of music?.
this function is available with the buttons or with the remote control?.
Hello and thanks