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Because there are no agents and maintenance bases in Taiwan. At present, it is found that the IC in the red circle in the photo is damaged, but the number on the IC has been erased, and the model number cannot be seen. I would like to ask about the IC part number in the DAC. I hope that through your professionalism, my difficulties can be solved. Know what IC part number I want to buy and come back for a replacement.
The larger of the two is a 74AHC125 buffer, which is made by several vendors. Based on the dimensions of some other parts on the board, I’m pretty sure it’s the TSSOP package, so these would be the most likely options. You’ll want to carefully measure the dimensions and compare that to the options listed to make sure they match.
Here are the dimensions of the 14-TSSOP package:
Still can’t tell what U15 is. Sometimes taking photos from different angles or with light shining from certain angles will make the text more visible.
The circled 8-pin TSSOP packaged chip is 24C64 EEPROM.
It is used for storing the firmware for the TAS1020 chip next to it (the 48-pin TQFP).
Good news is that a replacement chip is easy to get, but the bad news is that, as the chip is storing the firmware, you’ll need to get the firmware update from AUDIOENGINE somehow.
However it is a bit amazing that the EEPROM (24C64) is broken. That kind of visible damage on the package is usually caused by a flash, so would assume that the chips closer to the USB are hit harder. That is to say, that probably replacing the EEPROM alone won’t be enough to bring the product back in duty.
Anyway, give a try.
@David_1528
Thank you very much, I am very moved.
At present, it is handed over to the audio equipment engineer in Taiwan. I have forwarded the information to him, hoping to help him.
Working to make money is not an easy task. Items can be used continuously until the end of their lifetime. It is to cherish resources, contribute to the protection of the earth, and reduce unnecessary consumption and waste. correct?
I can’t guarantee that Taiwan can repair it well. The clearer and more detailed the information on the IC, the more helpful it will be. If you have any suggestions for a good D1 DAC in the future, please let me know the answer?
sincere thanks
@heke
Thank you very much, I am very moved.
At present, it is handed over to the audio equipment engineer in Taiwan. I have forwarded the information to him, hoping to help him.
Working to make money is not an easy task. Items can be used continuously until the end of their lifetime. It is to cherish resources, contribute to the protection of the earth, and reduce unnecessary consumption and waste. correct?
I can’t guarantee that Taiwan can repair it well. The clearer and more detailed the information on the IC, the more helpful it will be. If you have any suggestions for a good D1 DAC in the future, please let me know the answer?
sincere thanks
Thank you very much, I am very moved.
At present, it is handed over to the audio equipment engineer in Taiwan. I have forwarded the information to him, hoping to help him.
Working to make money is not an easy task. Items can be used continuously until the end of their lifetime. It is to cherish resources, contribute to the protection of the earth, and reduce unnecessary consumption and waste. correct?
I can’t guarantee that Taiwan can repair it well. The clearer and more detailed the information on the IC, the more helpful it will be. If you have any suggestions for a good D1 DAC in the future, please let me know the answer?
sincere thanks
