Questions tagged [trs]

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0 answers
74 views

Use TRS jack as Mono + 5V power input

I'm trying to change this guitar wireless transmitter so that the audio input jack also becomes a charging/power source. The charger will be a separate box with "stereo" input socket. ...
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0 votes
1 answer
63 views

TRS to USB microphone wiring

I am trying to use a microphone pulled out from an old video recorder. I can use a TRS connector and plug it into the AV - mic in jack. I am curious if there is a way to use USB - A interface. In ...
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  • 3
1 vote
1 answer
70 views

Outputting a 1/4 inch TRS male plug from a PCB

I am designing a small PCB that I need to plug into a 1/4" TRS receptacle. The overall setup can either be something like a small dongle (i.e. attaching a male TRS directly to the PCB somehow,) ...
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0 votes
0 answers
61 views

Telephone headset adaptor weak microphone and speaker sound

I have made a simple adaptor for a telephone P4C4 -- RJ9 -- separate headset output (The wiring diagram of a telephone handset can be viewed in this wikipedia article) to two TRS jack for an ordinary ...
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0 votes
2 answers
131 views

Stereo Headphone Cabling (TRS) - Why 4 pads on L loudspeaker and 4 cables?

The R(ight) loudspeaker on my AKG-K99 headphones stopped working. I bought a replacement (x2) 'mini' loudspeaker. After soldered the replacement the sound was "weird". No problem. I ...
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  • 29
0 votes
3 answers
100 views

Is it possible to use a Smartphone audio jack as MIDI output?

Is it possible to use a Smartphone audio jack as MIDI output? My plan is to use a standard TRS to MIDI cable, like the one Arturias Beatstep uses, to connect a Smartphone/Tablet to a MIDI device. I ...
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  • 3
0 votes
0 answers
63 views

Connection of TRRS microphone not TRRS headset

I know for headset T- Left R- Right R- mic S- Ground But for only microphone T - unknown ? R - unknown ? R - mic S - Ground What are those unknown? I want to plug it to my computer which has separate ...
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0 votes
1 answer
59 views

How do I wire a trs jack to a dual channel amplifier?

So I have a bluetooth audio amp circuit board. I believe it is dual channel it has two chips (one for left, one for right) The outputs are R+ R- L+ L-, but I want to wire them to a trs jack, which has ...
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9 votes
3 answers
2k views

Can an electrolytic capacitor withstand 0.1 V reverse polarity?

Let’s start the question with a brief description of my application. I am trying to attach a headphone jack with a detect pin to a RDA5807 IC based FM radio project. I am using a separate ...
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  • 173
1 vote
1 answer
600 views

Connecting cell phone and computer audio through TRS and TRRS 3.5 mm audio jacks

I am trying to connect the computer audio output to the cell phone audio input and vice versa. There are two connection designs because I need to be able to connect both to a desktop and a laptop ...
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2 votes
0 answers
3k views

How to connect 5 colored wire headphone to 3.5 TRS jack?

I have a somictone headphone and I want to repair its headphone jack, It contains five colored wires. Here are the wire and TRS jack. Please give me a feedback Can you please tell me how to wire this?...
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1 vote
2 answers
93 views

How to detect if a TRS cable is connected to a MP3 player output?

Imagine I have a MP3 player and one male-to-male TRS cable that could be connected or not to ...
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0 votes
0 answers
82 views

Audio Jack Sleeve Switch Schematic Connections

I'm trying to understand the switch mechanism on sleeve of this jack - I can't work out what it is. Specifically: 3 is sleeve, 4 is sleeve switch But what is operation? Is the sleeve switch N/O ...
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5 votes
2 answers
470 views

±12V protection for MIDI input

TLDR; how to make a MIDI input withstand shorting to \$\pm12V\$? This is a counterpart to this question, I'm asking this as I was inspired by the great answer I got there. I'm designing a MIDI input ...
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  • 1,117
8 votes
3 answers
575 views

±12V protection for MIDI output

TLDR; how to make a MIDI output withstand shorting it to \$\pm12\$V? I'm designing a MIDI output in a eurorack modular synth module on a TRS jack (this is a semi-standard non-standard way to save ...
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  • 1,117
0 votes
0 answers
50 views

Thread pitch on locking 1/8" audio connectors?

I feel silly that I can't find this on Google... what is the thread size on locking 1/8" audio connectors like these? There seems to be a de-facto standard, but I can't find any numbers and it's hard ...
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  • 341
2 votes
0 answers
107 views

Why is 3.5 mm audio jack so long (about 19 mm)? [closed]

The designers of 3.5 mm audio jack made the decision to keep it's length long (about 19 mm). They could have easily gone shorter lengths. Does longer length provide some noticeable improvements? From ...
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1 vote
1 answer
85 views

Why do faulty headphones make MP3s sound low bitrate when I touch the wire? [closed]

I have a pair of headphones which came with my phone. They're the standard type that comes with a mobile phone - TRSS 3.5mm jack with an inline microphone. I was listening to Spotify on my phone. I ...
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  • 654
2 votes
2 answers
900 views

Why would credit card reader over audio jack not work on some devices?

This isn't a troubleshooting question, it's purely to satisfy my curiosity... MagTek makes a product called the uDynamo credit card reader that uses the audio channel on android devices as a ...
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2 votes
3 answers
3k views

TRS female jack symbol in Kicad

There is a device which is powered and also outputs signal by its TRS connector as shown below: This TRS connector needs a female correspondent for my circuit. I made a small board and need to add ...
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  • 11.3k