Develop Bugs

Anyone with a dead px3 who can locate the SPDIF pin? (Expose the Balls)

Hi, I recently installed an MTCD px3 unit in my car but the audio quality is not that great. I'm looking at the option of a USB DAC but that appears to have its own set of issues and complexity.
I do note though that the RK3188 chip includes an SPDIF function and this does appear as an audio device in /proc/asound/cards so if the pins (balls) are exposed somewhere on the px3 module board then it should be just a matter of soldering to the right points to create an SPDIF interface.
If someone has a totally bricked unit would you consider doing some research? I.e. using some heat to the remove the RK3188 BGA chip and locating the ball that relates to SPDIF and seeing if it can be traced to a track?
The SPDIF transmitter is located at ball N20. You can find the datasheet by googling "RK3188 Datasheet" (sorry I can't post links yet). So who can "expose the balls"?
Alternatively if someone has a dead board/unit they would give away, I'd be happy to pay shipping for you to send it to me (in New Zealand) and I'll do the research and share my findings with the community.
Also looking for someone who understands what would be required on the software side of things to actually use the interface. Some kind of ALSA magic I guess?
Note - I do understand the limitation. I.e. this only applies to audio within Android, not the radio or bluetooth etc. My approach would be to install a physical switch so I could switch my car amp between the analog and digital outputs.

mcraenz said:
Hi, I recently installed an MTCD px3 unit in my car but the audio quality is not that great. I'm looking at the option of a USB DAC but that appears to have its own set of issues and complexity.
I do note though that the RK3188 chip includes an SPDIF function and this does appear as an audio device in /proc/asound/cards so if the pins (balls) are exposed somewhere on the px3 module board then it should be just a matter of soldering to the right points to create an SPDIF interface.
If someone has a totally bricked unit would you consider doing some research? I.e. using some heat to the remove the RK3188 BGA chip and locating the ball that relates to SPDIF and seeing if it can be traced to a track?
The SPDIF transmitter is located at ball N20. You can find the datasheet by googling "RK3188 Datasheet" (sorry I can't post links yet). So who can "expose the balls"?
Alternatively if someone has a dead board/unit they would give away, I'd be happy to pay shipping for you to send it to me (in New Zealand) and I'll do the research and share my findings with the community.
Also looking for someone who understands what would be required on the software side of things to actually use the interface. Some kind of ALSA magic I guess?
Note - I do understand the limitation. I.e. this only applies to audio within Android, not the radio or bluetooth etc. My approach would be to install a physical switch so I could switch my car amp between the analog and digital outputs.
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Hi.. my Android Radio just recently crashed. If you like.. i can give it to you.
Its a Hot Audio Android Radio PX3 RK3188.

Thanks very much. I've sent a PM.
Cheers,
Rhys

do you located SPDIF transmitter? Is possibile to connect directly an external DSP such Audison P8.9?

Bump

CANBUS help with DY7098 and Peugeot 307

Hello, I'm trying to install a Zeepin DY7098 in a Peugeot 307 that have CANbus and onboard computer... I want install without lose computer funcions... I searched many many many time, in many topics and I not understand if I need a canbus box decoder or can I install direct...
MCU is LM

Please, I really need some help

totynho said:
Hello, I'm trying to install a Zeepin DY7098 in a Peugeot 307 that have CANbus and onboard computer... I want install without lose computer funcions... I searched many many many time, in many topics and I not understand if I need a canbus box decoder or can I install direct...
MCU is LM
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Click to collapse
Zeepin DY7098 is an "universal 2DIN Head unit" i dont think canbus is an option but you can ask at your seller for it. For "full canbus" i think, you need a custom Peugeot 307 Head Unit
I found this infos on italian DME website:
"For peugeot vehicles (eg 3008/5008) that mount the on-board computer display just above the car radio (see photo below), you must purchase the kit (code KITPEU3008 / 5008) necessary to restore the information that this display - during the installation of the car radio - will be permanently removed. Warning: the information on the car radio is restored in English and it is not possible to translate it into Italian. KITPEU3008 / 5008 kit can be ordered at the time of purchase. (for eBay customers just request it when ordering)."
Articles code are for DME Peugeot Android Head unit. I think same is for your unit.

iRcKenny said:
Zeepin DY7098 is an "universal 2DIN Head unit" i dont think canbus is an option but you can ask at your seller for it. For "full canbus" i think, you need a custom Peugeot 307 Head Unit
I found this infos on italian DME website:
"For peugeot vehicles (eg 3008/5008) that mount the on-board computer display just above the car radio (see photo below), you must purchase the kit (code KITPEU3008 / 5008) necessary to restore the information that this display - during the installation of the car radio - will be permanently removed. Warning: the information on the car radio is restored in English and it is not possible to translate it into Italian. KITPEU3008 / 5008 kit can be ordered at the time of purchase. (for eBay customers just request it when ordering)."
Articles code are for DME Peugeot Android Head unit. I think same is for your unit.
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Click to collapse
This is the problem, I asked to seller and he don't know nothing about canbus... I sent message to manufactor and he sent me a canbus box from ConnectS2 CTSPG007.2 but I don't understand if is only for steering wheel control or I can use full canbus features...

totynho said:
This is the problem, I asked to seller and he don't know nothing about canbus... I sent message to manufactor and he sent me a canbus box from ConnectS2 CTSPG007.2 but I don't understand if is only for steering wheel control or I can use full canbus features...
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Click to collapse
Directly from Connects2 Ltd website (with a simple google search):
Description
Peugeot Steering Wheel Control Interface
Features & Benefits
Allows you to upgrade to an aftermarket head unit whilst maintaining use of your factory steering wheel controls
Safety: Allows you to keep your hands on the steering wheel and eyes on the road.
Plug and play, no cutting of wires required
Maintains the original features of the vehicle such as date, time and temperature display
Choose the relevant head unit connection lead according to the make of aftermarket head unit you wish to fit
For interfaces where phone buttons are supported, the following brands allow pick up/hang up in Bluetooth mode: Alpine, Clarion, Kenwood, Pioneer and Zenec. Please see icon list below to see if this interface supports phone buttons.
Please check the connections in the vehicle match the harness you are purchasing
This product has been developed through carefully documented data and research. Connects2 Ltd. cannot be held responsible for discrepancies/inconsistencies that may occur due to vehicle manufacturing changes or options, or damage that may occur in the vehicle during the installation of components. All application data is subject to change.
Simply try it and verify if it work like expected.

iRcKenny said:
Directly from Connects2 Ltd website (with a simple google search):
Description
Peugeot Steering Wheel Control Interface
Features & Benefits
Allows you to upgrade to an aftermarket head unit whilst maintaining use of your factory steering wheel controls
Safety: Allows you to keep your hands on the steering wheel and eyes on the road.
Plug and play, no cutting of wires required
Maintains the original features of the vehicle such as date, time and temperature display
Choose the relevant head unit connection lead according to the make of aftermarket head unit you wish to fit
For interfaces where phone buttons are supported, the following brands allow pick up/hang up in Bluetooth mode: Alpine, Clarion, Kenwood, Pioneer and Zenec. Please see icon list below to see if this interface supports phone buttons.
Please check the connections in the vehicle match the harness you are purchasing
This product has been developed through carefully documented data and research. Connects2 Ltd. cannot be held responsible for discrepancies/inconsistencies that may occur due to vehicle manufacturing changes or options, or damage that may occur in the vehicle during the installation of components. All application data is subject to change.
Simply try it and verify if it work like expected.
Click to expand...
Click to collapse
I think I'm not expressing myself right. In internet, we can see some videos where some person control A/C on Android Headunit, can see car info like belts, lights, temperature, without use any OBDII, just with CAN connection... Is this what I'm searching understand how it works...

totynho said:
I think I'm not expressing myself right. In internet, we can see some videos where some person control A/C on Android Headunit, can see car info like belts, lights, temperature, without use any OBDII, just with CAN connection... Is this what I'm searching understand how it works...
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Click to collapse
For what i know all these functions are controlled by CANBUS decoder/box (the one specified for vehicle brand and model) connected to Head unit: you can see the doors status (open/close), check A/C functions, etc. etc. CanBus box/decoder make all the job.
Cant help anymore.

Seicane CANBUS assistance

Hi everyone,
I haven't been on in a while and my username is new, but been using the site for years in the early root days.
I just purchased and installed a Seicane head unit in my Volvo XC60. Things are working great, but I had to bypass the amp to get sound which I thought was weird. Once installed, I noticed none of my buttons would work. Doing some research, I see that this could be due to the CANBUS not being set up correctly. The unit is a P series with a Octa-Core Cortex-A53. I went into the the factory settings where you can pick your CANBUS but I cannot find one that specifically states Volvo. The harness that was provided by Seicane bridges between the stereo and the main unit and information screen. The main until connector provides power and ground. The information system provides some CANBUS lines to the unit. I would think that since these CANBUS lines feed into the unit I would not need a separate box to decode them, but I could be wrong.
1. Is anyone familiar with CANBUS that might give me some insight into which CANBUS manufacture option I should pick.

Is it an MTCB unit or something else. Details are everything.

MTCE_hf_v3.30_1.
Edit: I just realized that I posted in the wrong area. Apologies. Deleting.

Canbus errors - Should I care ?

Hi Guys,
I have a Seicane PX5 octa core, 4GB RAM/32GB storage unit installed in my Mitsubishi L200 pickup. Had it for over a year now, and has worked perfectly from day 1, steering wheel keys all good, bluetooth calls, navigation, audio (much better than the stock radio), etc. Got a DAB+ box hooked up, reverse camera, etc. Really happy with it, upgraded to Android 10/latest MCU over the last week, again no problems.
So, why the post ?
There is one issue I had initially. The unit came with one of the can bus decoder boxes that connects to the loom at the back of the stereo. Once fitted and I started driving, I started getting all sorts of warning lights flashing on the dashboard - airbag warnings, engine lights, etc. Reading the OBD codes it was complaining about canbus communication errors. I cleared the codes and disconnected the canbus decoder from the loom. Ever since then, no codes, and the unit works perfectly - including things like the steering wheel controls.
So my question is, should I care that the canbus box caused errors ? Does it actually do anything worthwhile ? I guess it might depend on the vehicle it's installed in. Door Open warning maybe ? Speed sensitive volume adjust (although could use GPS for that) ? I'm just wondering if it's worth trying to get a replacement or just forget about it as it doesn't do much anyway.
Thanks.

Did you get this sorted and was it a dasaita head unit thanks

scottydoguk said:
Did you get this sorted and was it a dasaita head unit thanks
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Click to collapse
scottydog, apologies for not replying to this sooner, I never got a notification that someone had replied to this, and I have had cause today to revisit this issue.
The head unit I wrote about was a Seicane unit. Aside from the can bus issue described, the unit has been flawless. My solution was to just omit the can bus box, the unit worked just fine, steering wheel keys, etc al worked perfectly so I just left it.
However, I decided for Christmas to upgrade the unit to a Dasaita PX 6 unit, it will be faster, has higher resolution screen, etc. This unit also came with a can bus decoder as part of the vehicle specific unit. So I fit it, and guess what - exactly the same as with the Seicane unit - weird dashboard warnings all over the place, airbag, traction control, etc.
So, I think, no problem, just ditch the can bus box. But there are two problems this time - (1) unlike the Seicane, the Dasaita unit won't power on unless the can bus box is connected, and (2) the Dasaita unit has an application pre-installed that allows tweaking of a lot of vehicle specific settings (headlamp on time, etc) that you used to be able to set with the factory head unit, and I'm guessing can bus connection will be needed to make those work.
So I would like to get to the bottom of this and get the unit working with the can bus unit in place. I've logged an issue on the Dasaita forum so we'll see what happens there. I don't think it's the can bus decoder, I can't believe two would display the same problem, I'm pretty sure it's the can bus settings in the Factory Settings of the unit - I can certainly make the problem worse by altering those, but I haven't found anything that makes it better !
I've attached an image showing the can bus settings on the device as I installed it. My car is a 2016 L200 UK version right hand drive, it's a Totan model that didn't have sat nav as new but does have steering wheel controls, etc.
Any ideas would be appreciated !
Thanks

hi guys,
I have the same problem with my Mitsubishi Lancer 2009.
I installed a android head unit over a year a go and didn't had any problems until recently when my ABS and ASC light start being on in my dashboard. The lights keep switching on and off at irregular intervals and when i put a car tester on it showed beside the ABS error code (C2116 code) other errors on airbags and engine immobilization, all related with that android unit, errors on car CAN line.
My car has an Rokford Fosgate amplifier from factory and the sound system doesn't work without the Canbus box installed, so ditching the canbus is not an option for me.
I also ordered a new canbus box from China and i will receive the package sometime in January. I'll keep you posted how it works with new one.
If you have any other information on this topic or you find something on line, I'm really interested since the android head unit is a big upgrade for my car and i will hate to come back to original radio.

Mercedes ml350 (2006) with Harmon Kardin. All working but Steering wheel and CANBUS connection.

I just purchased a very cheap chinese android head unit from walmart.com (The price seems to have dropped even further, if it's the same one) and have it all installed in my ML350. I purchased, separately, an Optical Decoder box and have it also installed. I'm getting audio just fine (although of course it's just dropped to left and right..lost my full surround) but my steering wheel controls aren't working, nor is the CANBUS seeming to work. It's got a "Oudi" branded canbus decoder (Or at least the box is printed as one).
I don't see any Key1 or Key2, SWC or similar wires. The head unit is advertised as working with Steering wheel controls and canbus functions. From what I've read thus far, it's supposed to be able to communicate with canbus as is. It has 2 very long wires, Can-H and Can-L in addition to the ones that plugged into the harness..I don't think I had to do anything with them but I did see where someoene else having the same type ran them under the glove box to the long caterpillar like connection bar for Can-H and Can-L within the system. That didn't make any difference. I see some harnesses have a 2.5mm stereo jack to plug into the head unit also for steering controls but this doesn't have that etiher. Most seem to say that since the unit has steering learning that it all works through the canbus.
I've checked all pinouts and from what I can tell I've got them all correct. The can l and h were in wrong spots when I got it but got that fixed and at least the stereo is working.
Radio reception is less than spectacular, but it works. The stereo came with the adapter for that. My vehicle of course has that antenna amp on the back hatch under the window..always worked before. Also curious why this signal gets so back with that simple antenna adapter?
Anyhow, I'm overall happy with the unit (a bit slow at times, being a 1Gx16G model bug but handling that)
I've been in communication with the seller who keeps asking for videos, pics, and now wants me to purchase a new canbus at "any parts store" locally to try and they'll reimburse me. I dont' see anywhere that you can buy a canbus decoder anywhere locally.
I have such a hard time finding anyone with the same radio/wiring harness and this vehicle and can't understand why I'm having such issues with the installation SEEMS so simple. Yes I've gone into Protocol Settings in System settings and set to the "oudi" decoder. It only has 2 options. Mercedes-Smart, and Mercedes Fully Compatible. Neither works. It saves, doesn't require restart but I've tried rebooting as well. Even shutting off car when the radio is rebooting and starting it all together again.
Has anyone had any luck like choosing a different CANBUS? Like is it even worth going through them all? Surely the oudi box doesnt' have different hardware inside that might still work, but not be "oudi"?
I check data, etc I just get "no original vehicle setting function"

Did you ask the corresponding sellers about the matched CANBUS when you buy the android head unit? I've also been through this before, I purechased an aftermarket headunit from a Chinese brand called ATOTO, and I purchased their headunit for its affordable price, everything worked great, good connection to my phone, huge 10.1 inch screen display and good sound quality except the SWC interface. I have triple checked the connections and have tried two different Canbus interfaces that I have, and have tried both the key wires and the 3.5mm jack, the SWC interface simply doesn't work.
Then I contacted their support team and they also told me to buy a new canbus, and they told me to search on http://www.metraonline.com and https://pac-audio.com/, finally I got a new canbus and problem solved.
Hope this may help.

I have .. but they've been just.. run around after run around .asking for videos, pictures, wiring diagrams... Finally they say that it doesn't communicate with the Mercedes I this model....but ..it literally is custom bezeled for my model..comes with canbus decoder...states in the title of the item on walmart.com as for my particular video and that it keeps original steering wheel button function and all other factory features and canbus connection. So they're just lying to keep from having to send another canbus. Now just telling me to pack it up nicely and ship it back within 24 hours with tracking number to get refund. Heh.ill definitely check out your links tho! Thank you!

skybase said:
I have .. but they've been just.. run around after run around .asking for videos, pictures, wiring diagrams... Finally they say that it doesn't communicate with the Mercedes I this model....but ..it literally is custom bezeled for my model..comes with canbus decoder...states in the title of the item on walmart.com as for my particular video and that it keeps original steering wheel button function and all other factory features and canbus connection. So they're just lying to keep from having to send another canbus. Now just telling me to pack it up nicely and ship it back within 24 hours with tracking number to get refund. Heh.ill definitely check out your links tho! Thank you!
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I'm sorry for that bro! If the headunit you bought is an universal one then it should be compatible with most of the cars. Good luck and wish you can get this thing fixed soon!

WhiteSky0719 said:
I'm sorry for that bro! If the headunit you bought is an universal one then it should be compatible with most of the cars. Good luck and wish you can get this thing fixed soon!
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I find a kit (Best Buy has the same one I see, but it'll cost me $400 (at best buy) or over $600 on this site...for a $100 radio..damn..... haha weird thing though is that I don't think I have any SWC wires or 2.5mm jack or anything like that on the radio. Supposedly it worked through the Canbus...but...these kits all have that separate box as well. So....solution$$$ haha Thank you for this site though. It definitely reinforced for me the kit that I'm just gonna have to get. Plus side, I need this kit for ANY stereo I put in. Regardless if Android, no name or brand name standard deck.

skybase said:
I find a kit (Best Buy has the same one I see, but it'll cost me $400 (at best buy) or over $600 on this site...for a $100 radio..damn..... haha weird thing though is that I don't think I have any SWC wires or 2.5mm jack or anything like that on the radio. Supposedly it worked through the Canbus...but...these kits all have that separate box as well. So....solution$$$ haha Thank you for this site though. It definitely reinforced for me the kit that I'm just gonna have to get. Plus side, I need this kit for ANY stereo I put in. Regardless if Android, no name or brand name standard deck.
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Oh.... that's.... well you can also go check eBay, cheaper than most of shopping site, forget about the cheap **** it provides, the kits and hrness there should be cheaper. $400 is too much for a kit... If next time you need to upgrade another headunit, except Pioneer, Kenwood,etc. you can definitely go and try the brand atoto, although it is also a Chinese brand, happy with their serivice for now. Don't give up so soon bro! Try eBay again for the kits, lol.