Hi guys, I am using my Athena mostly for GPS and music playback. While the Athena has better sound than most other PDAs that I've tried, I think there is still room for improvement. Does anyone know what sound chip (OPAMP) is used? And best can anyone show me a photo of the opamp? I think changing the opamp will improve the sound greatly, as I have tried that on various sound cards on my PC.
Thanks in advance!
well i think its a good idea!
The good old 741 is a decent little OPAMP, if you think you can improve the sound quality by swapping out surface mounted chips you will only ruin the hardware - forget the idea, where do you expect to get any software drivers for the more exotic chip sets? - Mike
mikealder said:
The good old 741 is a decent little OPAMP, if you think you can improve the sound quality by swapping out surface mounted chips you will only ruin the hardware - forget the idea, where do you expect to get any software drivers for the more exotic chip sets? - Mike
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Thanks Mike for the info. So you mean it uses a SOIC 741 op-amp? 741 is usually single channel, if I remember correctly. I have no problem replacing surface mount op-amps, as I have done for this sound card :
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The original OPA2134UA were replaced by the 3 AD8620. I am hoping that the Athena uses the same SOIC op-amp then it will be easy to swap. I think the op-amp is in the analogue section and should not require any drivers.
I hope someone can show me a clear photo of the circuit board near the headphone output area. Then I will have a good idea whether the op-amp can be replaced.
Related
tweak and config the Equalizer and system/phone sound volume
1st step:
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2nd step:
Happy trying
what kind of instructions are these? are you asking or telling?
Telling - this is one of the rumored ways to minimise the cracking whilst making the ringtones loud enough for you to hear out of your pants pocket. I use another setting that still causes the speaker to crack (but less so than setting everything on full blast), will try this when I get back home.
(On the subject of cracking speakers, tho - I found that the Atom's LEFT speaker is usually the culprit. The RIGHT speaker never has a problem. As a test you can cover the left speaker with your finger when playing any offending MP3.
The cracking's usually worse with the Atom plugged into USB - well, if you put something THAT close to the charger, it's bound to happen methinks.
I don't think there's anything wrong with the sound card, since I get excellent results via headphones.)
does this work also in ringtones when someone call`s not in preview i have atom exec and when equalizer is enebled it doesnt work only when reciewing call.
just use ringomobile and midi tones, especially the ones from Nokia tone, (strain.mid and message1.mid) that should feed your appetite for noise
I have damage earpiece on my X10. I have found a lot disassemble guides but could not found how to replace earpiece speaker!
I also found this picture on xda, but i cannot be so sure how its earpiece connected to the screen.
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I have found one replacement on ebay LINK
But I am not sure how to replace it. Is it a big problem? Have anyone look inside X10, and can anyone tell me how to do this!
THX allot!
U need a hardware specialist for this....tough job
Sent from my X10i using XDA App
Thank you for your reply, I searched on the internet and found that it is a difficult job, but I am willing to try.
Ill picture every step, and if i succeed Ill post it here. Wish me luck!
Did you look at McKebapp's disassembley guide? http://forum.xda-developers.com/showthread.php?t=668132
I FIGURE IT OUT!!
This is not as tough as I think! I opened my Xperia and foud out that it is possible to replace only speaker without replacing "Receiver FPC" flat cable.
On eBay you can found this earpiece for a couple of pounds.
Now, when you open your xperia, you must be extremely cautious and separate speaker flat cable from your display. After that, you will need to separate speaker from rest of the flat cable, like what I have done on this picture. You will see connection solder points. Thats toughest job to do, to solder new speaker on that place but it can be done.
I did not receive mine jet, but when I do, Ill post pictures with new speaker...
Hi
My phone is starting to get the dreaded connection problem with the usb port. Currently I have to find an angle where it will actually charge it. Its getting quite annoying now and I noticed that its a common issue and its generally due to poor soldering. I was wondering whether its possible to fix it yourself as my phone has a number of cosmetic blemish's which will cause SE to ***** about how its my fault etc. As my lecturer would say they are "ensuring that the **** falls on someone elses head". Anyway it would be handy if someone could highlight where to solder exactly by just circling it in a set of pictures. Here is a disassembly guide you could use.
Thanks for any responses and I'm sorry if this has been posted before.
n.b. my lecturer was talking about ensuring your code has enough validation etc to ensure that the program doesn't fail as a result of poor programming. I realise that the comment may seem quite dodgy out of context when he was describing defensive programming.
This post might not be much help, but I suppose it'll get the gears turning.
Well, I took a look at it and, at least in my X10, I have some red looking hardened glue blocking the connections to the main board of my USB port, so I can't be very specific here. Though, I imagine you'd have to take this glue out and there should be probably 2 connectors that link it to the main board.
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I successfully tested several different ROM's on my X96 that on their original hardware would support BT.
Usually the combined WiFI/Bt chips that we find on the S912 boxes and some weird S905 ones.
Since my box does not have any BT capabilities through the hardware I was wondering what would be involved to find a BT stick that actually works on Android and to implement that into a firmware with support for a different BT chip.
I am quite new to the rom cooking stuff and still can't my head around linux thanks to growing up with Windows.
But my thought were somehow like this:
Take a firmware with BT support as a starting point.
Replace the WiFi driver with the match for the box - already done that and works fine.
Do the same with the BT driver - in theory easy too but where to find a driver or the correct libraries to make it work?
All I found so far in terms of poking around in the kernel is that there is nothing for the WiFi or BT in it.
Replace the WiFi folder in the system partition and the stuff just works, well apart from the usual hickups and problems with the framework and ui due to the different hardware.
So in my simple mind I think it should be quite possible to get a BT stick working on our non-BT boxes?
i have buyed a simple Bluetooth Transmitter to connect a Bluetooth Speaker or Headset. Have received for 10€ by Ebay
its just Audio but now i can hear Music in my Garden without cable
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Gesendet von meinem SM-G950F mit Tapatalk
Hello All-
I see there is SOOO much helpful information on here with regards to Android Car HU. As much as I don't mind reading I definitely do not want to brick my Unit. Here are the few items that I'd like to address:
Bluetooth streaming absolutely is terrible. Sounds distorted and not full range (compared to music that I have imported via USB) I did go into the factory settings to turn down the gain unfortunately it didn't have any positive effect In addition I would like to find an EQ that would allow more control over some of the lower frequencies. The stock EQ only goes to 62hz. I would absolutely love to find a DSP solution if there is / was one?
I'm going to try and attach the pictures of my build and model.
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scooby-snack said:
Hello All-
I see there is SOOO much helpful information on here with regards to Android Car HU. As much as I don't mind reading I definitely do not want to brick my Unit. Here are the few items that I'd like to address:
Bluetooth streaming absolutely is terrible. Sounds distorted and not full range (compared to music that I have imported via USB) I did go into the factory settings to turn down the gain unfortunately it didn't have any positive effect In addition I would like to find an EQ that would allow more control over some of the lower frequencies. The stock EQ only goes to 62hz. I would absolutely love to find a DSP solution if there is / was one?
I'm going to try and attach the pictures of my build and model.
Click to expand...
Click to collapse
Hiya have a look in this thread to help you with your unit.
https://forum.xda-developers.com/android-auto/mtcd-discussion-questions-development