Hello guys, I have a Xtrons MTCD px5 unit with android 8 on it, I was switching back to the old px3 cpu which I've previously had (the original one, because my px5 cpu is bought), wanted to install the px5 board back in, did it, put all bsck together, switched ignition of the car on, and the unit began to catch smoke, so something fried inside of it, switched back to the px5 board (installed it in the unit) and everything is working fine and normal except the fact that I don't have no sound at all anymore, everything sound related is dead... any solutions, maybe an external sound card if possible? I use the rca's because I have an amplifier in the back.
GA9350b No sound as well
Hey, I have changed my ECU on my E46 and my HU Eonon GA9350b also completely lost the sound. Everything works except the sound. I have updated the MCU, the software, I checked all the wiring and I even replaced it with my old Pioneer and the sound works on it. Does anyone have any idea what it might be?
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I am replacing an old 4.4.2 Joying head unit with their new px5 4GB unit.
The wiring diagrams are identical as are the wiring harnesses so I figured I could just unplug the iso connection from the old and plug the new one in.
I get power but no audio. The external factory amp doesn’t seem to be powering on because with the old I would get a slight sound in the speakers as the head unit came fully on in the main screen.
Any ideas? I was going to start testing the pin outs but I just don’t get what could be different.
TheCleaner said:
I am replacing an old 4.4.2 Joying head unit with their new px5 4GB unit.
The wiring diagrams are identical as are the wiring harnesses so I figured I could just unplug the iso connection from the old and plug the new one in.
I get power but no audio. The external factory amp doesn’t seem to be powering on because with the old I would get a slight sound in the speakers as the head unit came fully on in the main screen.
Any ideas? I was going to start testing the pin outs but I just don’t get what could be different.
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FYI, to close this out for others. The issue was the AMP CONT pin wasn't supplying 12 volts with the radio on. Tested with a multimeter. Frustrating, and trying to deal with Joying support to send something like this back to China is a PITA.
So, to deal with it I ended up cutting AMP CONT right before the fuse, and then splicing it into the red/accessory wire. Same effect. Good to go now.
TheCleaner said:
FYI, to close this out for others. The issue was the AMP CONT pin wasn't supplying 12 volts with the radio on. Tested with a multimeter. Frustrating, and trying to deal with Joying support to send something like this back to China is a PITA.
So, to deal with it I ended up cutting AMP CONT right before the fuse, and then splicing it into the red/accessory wire. Same effect. Good to go now.
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Click to collapse
Same problem here. I emailed joying support no help yet. I was looking for a setting in car setup that used to be in the android 6 units to tell it you wanted the external amp trigger enabled - I could not find that setting in the new Joying Android 8 unit.
sounds exactly like my issue I have posted on Joying forums and have a long chat with Candy at Joying. I am at a loss because the radio app when it comes on plays just fine via my external amp and sub. But when I switch to spotify or bluetooth audio. I get nothing. then if I mute and unmute I get audio to my front and rears but nothing to my subwoofer. I was looking for the external amp settings like I had in my 6.1 Android unit. Nothing. Dont want to send it back because it is fast and looks great. If I do send it back, I am just going to go with Seicane.
Hello all this worked for me. Try taking the top cover off the head unit and look on the board for the round sticker on top of the MCU (in my case the sticker said TP6735D v43-6686) and search the sticker info. Download only the MCU update with the same sticker info (in my case I needed TP6735D v43) after update the sound is working again. Not sure why the website MCU update takes out the sound. Good thing is, you can rollback . Hope this helps.
Playing music from USB will wake our factory amp, but radio station music does not. What would cause this? Is there a way to get radio to wake amp? I think(?) Amp Cont wire is unconnected.
Just installed my new xtrons android 9.0 headunit today everything is working apart from everytime I connect the amp control wire from my subwoofer to the amp con wire on the back of the headunit the system seems to have a bootloop. The unit will load up and just restart. I know its this wire because without it attached the headunit works ok. Tried to do some research but can't find anything, help it's driving me mad! Just want to use my subwoofer again!
I've just got an Xtrons PSP90M245 to go in my Vito and I'm having exactly the same problem. With mine, if I let it boot up first, then connect the wire it works fine.
I wonder if there is a big voltage drop as a number of things try and power up simultaneouslly that causes the head unit to go low on power? I hear a few other things try and start too, like the fan on the ECU at exactly the same time.
Did you ever get yours resolved?
Hello,
I have Android head unit for Peugeot 407, it's PX5 and running on Android 9.0. Issue I'm having for some time is that I have seperate amp and sub attached to it. I have taken 12V signal to turn it on from head unit's I think antenna or something that gave out 12V whenever it was turned on. I sometimes play music louder and after some time subwoofer just cuts off and it remains playing on normal car speakers. I checked already if maybe amp overheats but it doesn't as when I restart the unit (turn car off then on) the signal is back on and it can play again for some time before it cutsoff again. Also other interesting thing is that my rear speakers are not working at all on head unit... the weren't working for quite a long while, not sure if they have correct wiring on that adapter that comes with it to plug it to car. I was thinking of bridging the front and rear speakers together since I don't want them not playing as i've bought them new after my factory ones rotted out. They were working when I had my factory radio in few years back.
Checking here if someone has had the same issue.
Car: 2012 Honda Accord with premium sound system (subwoofer in side wall of the boot).
Unit: Prelingcar android 10, 4GB/64GB MCU verison Ts9.4.3-100-20....
Basically everything works except no sound from subwoofer, and balance front/rear. When balance is in the middle there is sound from the rear speakers, but if I drag it aft, everything goes silent.
Haven't found any setting that gets the subwoofer going.
Bought the unit second hand here and according to the previous owner he figured out that there is a subwoofer amplifier that is supposed to communicate through CAN, but he didn't have the time to do any research. I bought it knowing this of course, and it's not the end of the world if I don't get the sub running but it would be kind of nice.
I have tried to find a pin-diagram of the pinouts of the original stereo to try to trace where the SUB audio output is but haven't found any, so that is also one thing that could be helpful if someone out there has any wiring diagram. I'm thinking if there could be a pin missing in any of the wire harnesses or something like that. (hoping for an easy fix, yes I know.. )
I'm a complete noob in this area so maybe I have missed something obvious.
Hi Guys,
A while back, I purchased the T10 unit from Srnubi. It worked perfectly for day 1. All speakers working, subwoofer was loud, everything was great. I came back to the car the next day and there was 0 subwoofer! Nothing was changed, everything normal so I started trouble shooting and I testing turning the bass up on the DSP to max, only then I could very faintly hear the Sub working. I figured I would try to reset the unit in hopes that it would work but now I have a factory android head unit with no running software (except the android auto and carplay software) and still next to no subwoofer output. This lead me to believe that the subwoofer out RCA is not working. I tested all RCA's and they're all very faint (I'm running the speakers from an amp which is connected to the head units speaker wire as the chanels). Has anyone had this issue before and is there a way I can fix the RCA Output without opening up the headunit and looking for faults on the board? And how do I install the firmware that Srnubi has sent through? They've completely stopped replying to me and didn't provide any instruction, worst part is they waited until my 15 days was over to stop replying and now I can't raise a dispute on AliExpress.
Any help would be much appreciated!
Cheers!
rorschach_96 said:
Hi Guys,
A while back, I purchased the T10 unit from Srnubi. It worked perfectly for day 1. All speakers working, subwoofer was loud, everything was great. I came back to the car the next day and there was 0 subwoofer! Nothing was changed, everything normal so I started trouble shooting and I testing turning the bass up on the DSP to max, only then I could very faintly hear the Sub working. I figured I would try to reset the unit in hopes that it would work but now I have a factory android head unit with no running software (except the android auto and carplay software) and still next to no subwoofer output. This lead me to believe that the subwoofer out RCA is not working. I tested all RCA's and they're all very faint (I'm running the speakers from an amp which is connected to the head units speaker wire as the chanels). Has anyone had this issue before and is there a way I can fix the RCA Output without opening up the headunit and looking for faults on the board? And how do I install the firmware that Srnubi has sent through? They've completely stopped replying to me and didn't provide any instruction, worst part is they waited until my 15 days was over to stop replying and now I can't raise a dispute on AliExpress.
Any help would be much appreciated!
Cheers!
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DSP output to subwoofer has probably burned (regulator voltage chip inside on board), must be replaced.