Hi guys.
I successfully fix radio high frequencies using some hardware mods.
Why I need these mod?
Radio quality is bad even if you use darkleo MCU mod. You can't hear frequencies more than 442hz because of hardware limitation (Chinese wrong calculations maybe). Doing this mod You can hear clear and great quality sound (up to 25,6khz, full range for analog FM radio )
How to do the mod?
You have to discover sound filter that comes from radio tuner (TDA or whatever). See pictures for KGL4 that filter was split into 2 parts (different than any other tutorial).
Special Thanks to Russian guys that first do this mod and release tutorial (although slightly different than mine's) and vaonline for his tutorial for KYD (http://home.scarlet.be/~spb27160/witson/Witson.html). All head units has the same/similar hardware.
What You need to buy.
1) 2 1nf 0603 (1608 metric) SMD Ceramic Chip Capacitors (you can find a lot on ebay or whatever). See pictures.
2) Pen style soldering iron (see pictures)
3) of course soldering paste.
See wiring diagram and PCB pictures that shows filter line and what to change.
You will notice extreme difference in sound (I still can't believe the difference) .
I also Upload old russian's tutorial in rtf format (google translated)
Pictures from PDA forum for some devices
http://translate.googleusercontent....JrhhhKImk3tQ0Z4xeHsk4uXYt42mnMg#entry44206991
GOOD LUCK FOR TESTER.
If someone need help for any PCB dont hesitate to post, I will try to help.
If someone want to donate me a cup of coffee he can do it :laugh:
My other Works
1) MIC mod http://forum.xda-developers.com/android-auto/mtcb-hardware-development/kgl4-mic-mod-t3252424
2) RED apps http://forum.xda-developers.com/and...ent/mod-red-music-movie-dvd-bt-radio-t3278054
Does this also apply to the BN/HA models you think?
ArakniD said:
Does this also apply to the BN/HA models you think?
Click to expand...
Click to collapse
It should, although boards are different and need some investigation to find the right parts, as capacitor numbers may be different.
If you can take clear hd board photos from top and from bottom I can try to help.
hadjistyllis said:
It should, although boards are different and need some investigation to find the right parts, as capacitor numbers may be different.
If you can take clear hd board photos from top and from bottom I can try to help.
Click to expand...
Click to collapse
Dear hadjustyllis,
What do think about these mods what @kumarai shared on 4pda?
peti007 said:
Dear hadjustyllis,
What do think about these mods what @kumarai shared on 4pda?
Click to expand...
Click to collapse
Russian guys also change the whole circuit for some devices.
For example for KGL they changes also resistors and .....
AI only change the 2 capacitor and I get lost high frequencies. Bass its was ok from the beginning.
So if you have great soldering skill you can follow russian guys.
Thanks for pda link, some may find it usefull.
I make the mod on my KGL.
The sound is really better.
Before I was not able to capture some stations, now this is ok.
I posted 2 photos because the location of capacitor C212 and C213 is different for my KGL .
Joying new board
hadjistyllis said:
It should, although boards are different and need some investigation to find the right parts, as capacitor numbers may be different.
If you can take clear hd board photos from top and from bottom I can try to help.
Click to expand...
Click to collapse
Can you help me identify which caps to change on this setup?
gordonscicluna said:
Can you help me identify which caps to change on this setup?
http://forum.xda-developers.com/picture.php?albumid=13179&pictureid=52758
http://forum.xda-developers.com/picture.php?albumid=13179&pictureid=52760
http://forum.xda-developers.com/picture.php?albumid=13179&pictureid=52759
Click to expand...
Click to collapse
Change the red ones.
Thanks. I thought so, after studying your mod and the russian text. Will do once i get the 1 nano caps. I have 2.2nano and they are slightly bigger. Do you think size bigger caps will fit on the board in same place
gordonscicluna said:
Thanks. I thought so, after studying your mod and the russian text. Will do once i get the 1 nano caps. I have 2.2nano and they are slightly bigger. Do you think size bigger caps will fit on the board in same place
Click to expand...
Click to collapse
Mmmm parts are small enough and no more space. So use the recommented one as frequencies are case sensitive
Will be using a hot air soldering gun. Will post pics when Im done. Have to wait for 1nf to come by post coz I couldnt source correct size (only 0805) locally. This will be my first try on smd caps, I have been practising on a bad harddrive, desoldering and soldering back caps and resistors.
hadjistyllis said:
Russian guys also change the whole circuit for some devices.
For example for KGL they changes also resistors and .....
AI only change the 2 capacitor and I get lost high frequencies. Bass its was ok from the beginning.
So if you have great soldering skill you can follow russian guys.
Thanks for pda link, some may find it usefull.
Click to expand...
Click to collapse
Can someone technical explain this radical mod by russians please for general knowledge
hadjistyllis said:
Mmmm parts are small enough and no more space. So use the recommented one as frequencies are case sensitive
Click to expand...
Click to collapse
caps changed yesterday. Original caps where 35nf. Changed them with 1nf. Radio sound is as good as it gets.
gordonscicluna said:
caps changed yesterday. Original caps where 35nf. Changed them with 1nf. Radio sound is as good as it gets.
Click to expand...
Click to collapse
Great enjoy radio as it should be from the beginning.
I just did the same mod has @gordonscicluna and I have 2 questions:
1. I used 2.2nF caps, is this a big deal seems like it is much close to the 1nF that was used (I had ordered 2.2 since the Russian tutorial had mentioned 2-4nf), I assume if the original ones were 35nF or so the 2.2 should be much better but maybe not as perfect as 1nF?
2. What are the additional resistor changes for? The link for the JY images on the Russian website showed to change those as well, but when I opened up my JY unit it didn't look the same, so I only changed the caps (since @hadjistyllis had pointed out which ones to change on the JY board that I have).
According to hadjystillis's calculations 2.2nf will not liberate all the high frequencies.. You will miss the 15khz band. Using 1nf you will open all spectrum by far.
gordonscicluna said:
According to hadjystillis's calculations 2.2nf will not liberate all the high frequencies.. You will miss the 15khz band. Using 1nf you will open all spectrum by far.
Click to expand...
Click to collapse
Hmmm maybe I will go back in there, it does sound better that is for sure
jakejm79 said:
2. What are the additional resistor changes for?
Click to expand...
Click to collapse
Change capacitors to have an higher cutoff frequency, and change resistors to modify the pass-band original gain.
popeye70 said:
Change capacitors to have an higher cutoff frequency, and change resistors to modify the pass-band original gain.
Click to expand...
Click to collapse
Thank you, do you think it is really needed to change the resistors too? I have done the audio mod if that makes any difference
jakejm79 said:
Thank you, do you think it is really needed to change the resistors too? I have done the audio mod if that makes any difference
Click to expand...
Click to collapse
I dont think you need to change resistors. Changing only caps gives sound same as mp3
Related
Hi all .
I've gotten quite interested in those android dongels that you can buy to make your TV smart, but I was wondering if it's possible to make your own dongel?
Regards
Skickat från min C6603 via Tapatalk 2
TheHawk002 said:
Hi all .
I've gotten quite interested in those android dongels that you can buy to make your TV smart, but I was wondering if it's possible to make your own dongel?
Regards
Skickat från min C6603 via Tapatalk 2
Click to expand...
Click to collapse
You do know that these dongles are (a lot of the time) small computers with phone processors running on them? It's not as simple as putting some software onto a usb stick... After all, how would the TV become more smart just by adding a normal usb-stick?
With all due respect.. If I'm not mistaken, the original poster did not mention anything about a 'simple' USB stick or simplified schematic device. He simply inquired about whether or not it was possible to create/design a homemade version of these smart TV dongles. If I'm putting words into the mouth of the OP I apologize and if I am mistaken, disregard my post.
In regards to the thread starters inquiry - I am personally unaware of any existing methods, means or instructions pertaining to the assembly of these dongles.
fafinaf said:
With all due respect.. If I'm not mistaken, the original poster did not mention anything about a 'simple' USB stick or simplified schematic device. He simply inquired about whether or not it was possible to create/design a homemade version of these smart TV dongles. If I'm putting words into the mouth of the OP I apologize and if I am mistaken, disregard my post.
In regards to the thread starters inquiry - I am personally unaware of any existing methods, means or instructions pertaining to the assembly of these dongles.
Click to expand...
Click to collapse
It would be quite difficult. Is the OP interested in this for the economic benefits or just as a project to learn?
Because it is likely much cheaper to buy one of these devices as they are mass produced.
Building one yourself would be extremely difficult and would more than likely take the form of a box rather than a stick. There is a fair bit of engineering put into these sticks.
TheHawk002 said:
Hi all .
I've gotten quite interested in those android dongels that you can buy to make your TV smart, but I was wondering if it's possible to make your own dongel?
Regards
Click to expand...
Click to collapse
Of course it's possible, but as they said, it'll be extremely difficult
atrix4g18 said:
Because it is likely much cheaper to buy one of these devices as they are mass produced.
Click to expand...
Click to collapse
That's it. Actually, if the goal is use it to learn, it's better get a development board (as the allmighty Odroid-U2 )
atrix4g18 said:
It would be quite difficult. Is the OP interested in this for the economic benefits or just as a project to learn?
Because it is likely much cheaper to buy one of these devices as they are mass produced.
Building one yourself would be extremely difficult and would more than likely take the form of a box rather than a stick. There is a fair bit of engineering put into these sticks.
Click to expand...
Click to collapse
It's just a project to learn but now I realize that it may be just too much effort to do it because I'll be buying a normal one anyhow.
When I buy one is it possible to flash another firmware on top of it if it's tweaked to work on a big screen?
Skickat från min C6603 via Tapatalk 2
This may look nonsense a bit , but can i turn my android phone into one of these dongles, like install an app or flashing a whole package to change the function of the smartphone and make it work on TVs. Since those dongles have a phone processor, why not use the phone processor .
Ok ,but if you have an old smartphone that's don't make easier build it? Can you use the motherboard?
You can use an old smart phone. I wouldn't use anything older than kitkat, anything older and the processor may not be fast enough. just use a media streaming app, for example Kodi. Connect your phone via mhl to hdmi cable, with power source, to you flat panel tv. Also check out these threads:
https://www.xda-developers.com/how-to-repurpose-android-as-a-diy-chromecast/amp/
https://youtu.be/Zi9SpiBW-7c
Hi guys,
First post on these forums. I hope I'm not double posting but I could find quite what I was looking for.
My brother dropped his SK17i, the screen is cracked but still completely working, and the earpiece doesn't appear to be working ie. during a call you cannot hear the person talking but they can. The headphone jack works for a call though, and no other speakers are damaged. I downloaded ToggleHeadset2 but it wont open so I assume it won't work, but I tried SoundAbout and it also doesn't improve the situation any. Pretty sure its just a broken earpiece speaker which needs replaced.
Its running Android 4.0.2. (Latest Sony firmware update). I'd like to get into mobile phone fixing and he said if I can sort it out its mine. I'm pretty confident about having a hoke about inside it cause i've messed with laptops and desktops before but I'd like a bit of advice if possible.
I've found lots of good guides to open the phone, replacing the screen will be no problem, but I want to sort the speaker before investing in the screen which is dearer.
My questions are:
1. Is this the component I need to buy? <url removed> darn...can't post links yet! Ok well could someone link me to the component I would need?
2. What specific tools will I need for this? Soldering required etc?
I'm sorry if these are easily answerable elsewhere, I tried...
sjkreid said:
Hi guys,
First post on these forums. I hope I'm not double posting but I could find quite what I was looking for.
My brother dropped his SK17i, the screen is cracked but still completely working, and the earpiece doesn't appear to be working ie. during a call you cannot hear the person talking but they can. The headphone jack works for a call though, and no other speakers are damaged. I downloaded ToggleHeadset2 but it wont open so I assume it won't work, but I tried SoundAbout and it also doesn't improve the situation any. Pretty sure its just a broken earpiece speaker which needs replaced.
Its running Android 4.0.2. (Latest Sony firmware update). I'd like to get into mobile phone fixing and he said if I can sort it out its mine. I'm pretty confident about having a hoke about inside it cause i've messed with laptops and desktops before but I'd like a bit of advice if possible.
I've found lots of good guides to open the phone, replacing the screen will be no problem, but I want to sort the speaker before investing in the screen which is dearer.
My questions are:
1. Is this the component I need to buy? <url removed> darn...can't post links yet! Ok well could someone link me to the component I would need?
2. What specific tools will I need for this? Soldering required etc?
I'm sorry if these are easily answerable elsewhere, I tried...
Click to expand...
Click to collapse
see bro its always risky to work with the device opened up and you might go wrong also sometimes.. a good advice is take the phone for Service to Sony if you are still in warranty. if you are not in warranty and cannot afford to spend money i would say there would be some 3rd party repairing centers in your city where they charge a little less... whatever it is no one here on XDA developers would be blamed if you mess up with your phone
Al the Best bro
Best Regards
Aneel
Aneel said:
see bro its always risky to work with the device opened up and you might go wrong also sometimes.. a good advice is take the phone for Service to Sony if you are still in warranty. if you are not in warranty and cannot afford to spend money i would say there would be some 3rd party repairing centers in your city where they charge a little less... whatever it is no one here on XDA developers would be blamed if you mess up with your phone
Al the Best bro
Best Regards
Aneel
Click to expand...
Click to collapse
Thanks for the reply. Of course I would never blame anyone if I followed their advice and I ended up destroying the phone, just wanted to know what level of task it is before I attempt it, like would this require soldering it would it be a ribbon slide in and out job. I own anti-static mats, wrist grounding things, and quite a few small laptop tools. Just trying to get an idea of what is actually involved in this before I have the phone in pieces. :good:
Like I said I'm excited to try open the phone myself and learn something maybe, any advice would be welcome. :highfive:
sjkreid said:
Thanks for the reply. Of course I would never blame anyone if I followed their advice and I ended up destroying the phone, just wanted to know what level of task it is before I attempt it, like would this require soldering it would it be a ribbon slide in and out job. I own anti-static mats, wrist grounding things, and quite a few small laptop tools. Just trying to get an idea of what is actually involved in this before I have the phone in pieces. :good:
Like I said I'm excited to try open the phone myself and learn something maybe, any advice would be welcome. :highfive:
Click to expand...
Click to collapse
thats nice to hear and dont forget to click a thanks when you feel my reply has helped you know something which is udeful all we need is little admiration,ispiration,appreciation and a Click on thanks button :good:
Check out iFixit , there's a tutorial on how to replace the touchscreen
Sent from my Nexus 4 running Android 4.2.2
Not sure where else to post this so posting here (mods feel free to move if there is a better spot)
I have been trying to find a charger port for a note 3 n9006 variant. This is a Chinese variant of the note 3. Other charge flexes will not work they are all basically the same regardless of carrier. But this version is very different it is basically a small board same width/height across the board. At any rate does any one have a clue as to where i can buy this part from? US or china etc makes no difference to me at this point. Just need this part. For that matter some one here might even have the part.
Nanaki-seto said:
Not sure where else to post this so posting here (mods feel free to move if there is a better spot)
I have been trying to find a charger port for a note 3 n9006 variant. This is a Chinese variant of the note 3. Other charge flexes will not work they are all basically the same regardless of carrier. But this version is very different it is basically a small board same width/height across the board. At any rate does any one have a clue as to where i can buy this part from? US or china etc makes no difference to me at this point. Just need this part. For that matter some one here might even have the part.
Click to expand...
Click to collapse
This is an old thread so sorry for the late reply, but would this work?
http://www.amazon.com/Ribbon-Charger-Charging-Connector-Samsung/dp/B00MGESGVS
Unfortunately no it is the same part i have. The one needed is like half as tall and strait along the top etc. I may have to contact samsung a few times directly to get it. Going to be pricey and hard to get.
Dopamin3 said:
This is an old thread so sorry for the late reply, but would this work?
Click to expand...
Click to collapse
i think you are referring for some original phone , but he wants to know some Chinese source , as me too looking for digitizer of note 3 but for Chinese note 3 , any help ?
So i'm in the process of converting all of my cars to cars to android. I am having quite the time actually getting units that aren't defective or used in some way. This one came w/ a harness cut so short it's nearly useless, it has SU on it, a bunch of the previous users documents, his phone pairing info, his email account, gmail account, misc documents/pictures, nova launcher, Pandora account, Xposed stuff, etc. Joying took in a return and didn't even look at the damn thing and just sent it back out to another customer. Nice job joying! Anyway after all this I wanted to see if they hacked anything inside and I found this thin 36ish AWG wire soldered between two resistors. I am unsure if this is a mod or stock. I cannot believe joying would do this however the solder job looks quality so I don't know. Can anyone tell me what the purpose of this is if it is not stock? I've probably going to send this back given the circumstances but I'd like opinions on this wire.
Thanks guys.
Dave
TT_Vert said:
So i'm in the process of converting all of my cars to cars to android. I am having quite the time actually getting units that aren't defective or used in some way. This one came w/ a harness cut so short it's nearly useless, it has SU on it, a bunch of the previous users documents, his phone pairing info, his email account, gmail account, misc documents/pictures, nova launcher, Pandora account, Xposed stuff, etc. Joying took in a return and didn't even look at the damn thing and just sent it back out to another customer. Nice job joying! Anyway after all this I wanted to see if they hacked anything inside and I found this thin 36ish AWG wire soldered between two resistors. I am unsure if this is a mod or stock. I cannot believe joying would do this however the solder job looks quality so I don't know. Can anyone tell me what the purpose of this is if it is not stock? I've probably going to send this back given the circumstances but I'd like opinions on this wire.
Thanks guys.
Dave
Click to expand...
Click to collapse
All I can say is I bought a new unit from Xtrons and it was new and there was a very similar thing on the board mounted behind the touch screen. No idea if this will actually help you but based on all the other crap that is on the unit I would definitely send it back and ask them to pay for the postage as well.
I've looked more thoroughly and there are also resistors missing, I'm fairly sure this was modified by someone. I'd really be curious if someone can tell me what this person was up to here.
Dave
TT_Vert said:
I've looked more thoroughly and there are also resistors missing, I'm fairly sure this was modified by someone. I'd really be curious if someone can tell me what this person was up to here.
Dave
Click to expand...
Click to collapse
It may be a last minute-change to the circuitry on the part of the manufacturer.
I have seen some similar things here and there in the past, where you purchased the last run of the "old-style" circuits that have to have a few extra traces or runs included, and the only way to do that is to install a jumper, leave out a few components, do some extra manual soldering, etc.
If it functions okay, and you're not noticing any critical defects in the performance of the unit, I wouldn't worry about it if I were you. There is a very low likelihood that some end-user would simply go in and start desoldering things and throwing in jumpers, and you get a product that still functions in good order. The average Joe would simply break it doing things like that; the person who did that knew what they were doing, even if it looks somewhat unprofessional.
(If it works, don't fix it.)
Spoke to the vendor and they told me they did not do the modification.
Dave
I cant see anything that doesnt look like it wasnt done by the factory, does everything work ?
Resistors are missing and a jumper wire has been added. I would hope they wouldn't have left it like that. Regardless Joying says it was not done by them.
Dave
TT_Vert said:
Resistors are missing and a jumper wire has been added. I would hope they wouldn't have left it like that. Regardless Joying says it was not done by them.
Dave
Click to expand...
Click to collapse
Missing, or just not been added because they are not needed on your version ? Nothing looks out of the ordinary to me. Joying are sellers, not a factory so I doubt theyd have done anything internally to your unit. Does everything work ?
The pads appear to have solder on them. The device also had someone elses data on it. There was no way I was going to accept this as a new device.
Dave
As in the subject - is possible to rebuild unit who is now RK3188 - 800X480 to RK3188 with 1024X600?
Which hardware parts need to be changed, display only? What else?
I have Klyde unit.
the screen resolution has nothing to do with RK3188
it depends on your screen.
So if I would buy new screen 1024X600 and just replace with old, it will be working? And also just update ROM form old to ROM 1024X600?
I have done it on my Klyde. I contacted them and requested for a screen with TP (make sure they send them glued together, not separate as they did in my case ) and the corresponding firmware.
Very easy modification. Took me 5 minutes to do it.
ga!nusha said:
I have done it on my Klyde. I contacted them and requested for a screen with TP (make sure they send them glued together, not separate as they did in my case ) and the corresponding firmware.
Very easy modification. Took me 5 minutes to do it.
Click to expand...
Click to collapse
Could you give us some details? Where can we order this 1024x600 screen?
I have a KLD unit too, and I want to make this modification.
Thanks
Balazs
Hey, interested in this also. How much did the screen cost if you dont mind me asking? A link would be great?
ga!nusha said:
I have done it on my Klyde. I contacted them and requested for a screen with TP (make sure they send them glued together, not separate as they did in my case ) and the corresponding firmware.
Very easy modification. Took me 5 minutes to do it.
Click to expand...
Click to collapse
I need this upgrade too, how I know whats my unit is KLD or whatever the model is from?
and please let us know where u get the screen from
ga!nusha said:
I have done it on my Klyde. I contacted them and requested for a screen with TP (make sure they send them glued together, not separate as they did in my case ) and the corresponding firmware.
Very easy modification. Took me 5 minutes to do it.
Click to expand...
Click to collapse
Hello
THANKS you for your feedback could you please provide us more detail and link tout buy it?
Thanks in advance for your help
any news?
based on your head unit model the screen, touch screen and the digital board that powers the screen need to be changed to switch to 1024x600 resolution.
parts you can resue are basically the SoM and the motherboard.
I repair many head units daily.
doctorman said:
based on your head unit model the screen, touch screen and the digital board that powers the screen need to be changed to switch to 1024x600 resolution.
parts you can resue are basically the SoM and the motherboard.
I repair many head units daily.
Click to expand...
Click to collapse
so, is there any possible way to do it?
Sorry, I lost this discussion. I just found it again.
As doctorman said, i had to change the LCD and touchpanel, and the digital board that powers the screen as the connector is different.
I don't know the exact price as i also upgraded the PCBA with the processor to pass to quad core and it was around 100usd in total
ga!nusha said:
Sorry, I lost this discussion. I just found it again.
As doctorman said, i had to change the LCD and touchpanel, and the digital board that powers the screen as the connector is different.
I don't know the exact price as i also upgraded the PCBA with the processor to pass to quad core and it was around 100usd in total
Click to expand...
Click to collapse
Thank you for the explanation however where you found thé part?
A link will be very appreciate ?
I have contacted Klyde directly on alibaba. After a few hours of negotiation they agreed to send me the spare parts.
I searched for the parts on ebay but i could not find them.
thank you for your feedback