Add AUX-input to the head unit Nexia Clarion
It took one of my friends to screw this input to the radio. The car was not old, in 2011, the time of prosperity of flash drives and portable players, but the head unit did not have not only a USB port, but even an AUX input. Apparently the manufacturer put everything that was lying around in warehouses. There was a choice - to listen to pop music on the radio (and even then it catches not everywhere) or to carry along a bunch of disks (and the music on the disk switches with a pause of five seconds). To change the radio tape recorder to a more modern one is also not an option. The size of the standard 2-DIN, non-standard box. Need to buy a pocket or stub. Yes, that's not the point. The head unit has a very convenient volume control and track switching buttons. And the rest is not so important (sound is acceptable).
Resolved - we open the radio. And we see that the manufacturer left a place under the AUX. Inside the panel and on the panel board.
')
But on the board of the radio itself - no. Apparently, not the modification.
The method of scientific tyke, it was found that you can connect in front of the preamplifier. At the entrance of a CD or Radio. It makes no sense to connect in front of the end-point; there will be no control of timbre, balance and volume from the standard controller.
Connecting to a CD also makes no sense. If the disc is not playing, the preamplifier and the tip are found in MUTE mode. And if the terminal can still turn on the turn-on signal, then the NJW1192 pre-amp chip is idle turned off programmatically.
Some, however, have bypassed this by recording silence on the disc. And include it in parallel with the external player. Mse knows a lot, yes .
Another friend plugged the connector directly into the radio output . It turned out to be an interesting effect: as soon as the player turns on in the connector, the sound of the radio disappears and the output signal goes from the player. I checked it myself.
True, if you press a pause on the player, you can hear a very quiet sound of the radio. I suppose that the point is the different output impedances of the final amplifier of the player and the preamp of the radio module. The first simply suppresses the second. This option is also dismissed. If you do not mind the radio, then no one guarantees in this mode the safety of the player. And this is not gut. Players and phones (in music playback mode) are now expensive.
So - cut. Cut lines from the radio to the preamp (R-LO and R-RO) and solder the switch to the section. There are very conveniently located points 1 and 2, so you do not need to clean anything. The main thing is to cut the tracks between these points and soldering the radio module (3 and 4).
The second line to the switch, respectively, from connector 3.5. Capacitors for insurance. Capacity is from 1 to 100 microfarad. You can do without them, if not sorry to risk the player.
Check, collect:
Set back. Everything is working. The “Radio” mode - “AUX” is switched by a toggle switch.
Resolved - we open the radio. And we see that the manufacturer left a place under the AUX. Inside the panel and on the panel board.
')
But on the board of the radio itself - no. Apparently, not the modification.
The method of scientific tyke, it was found that you can connect in front of the preamplifier. At the entrance of a CD or Radio. It makes no sense to connect in front of the end-point; there will be no control of timbre, balance and volume from the standard controller.
Connecting to a CD also makes no sense. If the disc is not playing, the preamplifier and the tip are found in MUTE mode. And if the terminal can still turn on the turn-on signal, then the NJW1192 pre-amp chip is idle turned off programmatically.
Some, however, have bypassed this by recording silence on the disc. And include it in parallel with the external player. Mse knows a lot, yes .
Another friend plugged the connector directly into the radio output . It turned out to be an interesting effect: as soon as the player turns on in the connector, the sound of the radio disappears and the output signal goes from the player. I checked it myself.
True, if you press a pause on the player, you can hear a very quiet sound of the radio. I suppose that the point is the different output impedances of the final amplifier of the player and the preamp of the radio module. The first simply suppresses the second. This option is also dismissed. If you do not mind the radio, then no one guarantees in this mode the safety of the player. And this is not gut. Players and phones (in music playback mode) are now expensive.
So - cut. Cut lines from the radio to the preamp (R-LO and R-RO) and solder the switch to the section. There are very conveniently located points 1 and 2, so you do not need to clean anything. The main thing is to cut the tracks between these points and soldering the radio module (3 and 4).
The second line to the switch, respectively, from connector 3.5. Capacitors for insurance. Capacity is from 1 to 100 microfarad. You can do without them, if not sorry to risk the player.
Check, collect:
Set back. Everything is working. The “Radio” mode - “AUX” is switched by a toggle switch.
Source: https://habr.com/ru/post/376263/
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