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FiiO X3 mod - AD8397 to AD8620 - Page 17

post #241 of 244
Quote:
Originally Posted by ClieOS View Post
 

 

Your friend has soldered it in the wrong orientation. The sloped edge should have faced upward (toward the SD slot) in the picture, but it is not. My guess is the chip has likely burnt out, better order a new one and hopefully no other hidden damage that will render the X3 unrepairable.

I've bought the new component (the exact same model) and we've soldered it in the right direction.
Unfortunately, when I play a song and I plug the headphones, I can hear "TAC" sound from the player and then, after maybe 2 seconds, another from the headphones, and it gives me the message: "Output error Please reinsert earphones".
I specify that the music works from the LINE OUT.

post #242 of 244
Quote:
Originally Posted by v4ever16 View Post
 

I've bought the new component (the exact same model) and we've soldered it in the right direction.
Unfortunately, when I play a song and I plug the headphones, I can hear "TAC" sound from the player and then, after maybe 2 seconds, another from the headphones, and it gives me the message: "Output error Please reinsert earphones".
I specify that the music works from the LINE OUT.

I think that the first TAC is the relay.
But I cannot understand the second. Maybe is there some short-circuit?

post #243 of 244
Thread Starter 

There is only one relay inside X3 so what you are hearing is the opening and closing of the same relay. My guess is, there is either no power / signal on of the the channel due to unknown damage to the voltage supply rail (as the headphone-out opamp is only half powered), or your opamp has a cold solder join (less likely). The worst case is there might be some high DC offset (which the relay has protected you from). The opamp buffer on the line-out actually can work with a single supply rail so it might not get affected by the problem on the supply rail. There is no easy way for me to tell which is which though.

post #244 of 244
Quote:
Originally Posted by ClieOS View Post

There is only one relay inside X3 so what you are hearing is the opening and closing of the same relay. My guess is, there is either no power / signal on of the the channel due to unknown damage to the voltage supply rail (as the headphone-out opamp is only half powered), or your opamp has a cold solder join (less likely). The worst case is there might be some high DC offset (which the relay has protected you from). The opamp buffer on the line-out actually can work with a single supply rail so it might not get affected by the problem on the supply rail. There is no easy way for me to tell which is which though.
Many thanks ClieOS.
You have been clear, now I can't do anything else. Now I'm trying to send it to Fiio for a reparation.
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