[Guide] Audio-/Headphone Jack Information Thread

Various user-contributed guides for hardware-related things
User avatar
alien0matic
Posts: 102
Joined: Wed Jun 08, 2016 7:20 am
Has thanked: 15 times
Been thanked: 23 times

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by alien0matic » Tue Aug 09, 2016 4:45 am

Fleder wrote:
alien0matic wrote: Right out (pin 4) is always "supplied" with audio, but if there are no headphones connected, no one cares.
This is where I think you are wrong. I bet, if you remove the cable going to right out, your speaker wont work anymore.

User avatar
RetroGamingNow
Posts: 137
Joined: Fri Jul 15, 2016 7:55 pm
Has thanked: 9 times
Been thanked: 24 times

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by RetroGamingNow » Tue Aug 09, 2016 4:47 pm

Radioshack Headphone Jack Diagram can be found here in the guides section http://www.sudomod.com/forum/viewtopic.php?f=22&t=1209

BigEternalEnd
Posts: 2
Joined: Mon Aug 15, 2016 8:31 pm

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by BigEternalEnd » Mon Aug 15, 2016 8:57 pm

Hi,

I've been lurking in these forums for a while as I build my gameboy zero. I'm getting ready to work on sound. My DMG headphone jack seems to behave as alien0matic describes it. Perhaps there are indeed two different versions of the DMG jack. There are subtle differences between the tops (non-pin side) of the jacks in the first post and mine. Namely, there is no "3-1" imprint and there are two smaller windows exposing metal on the side opposite of the jack, instead of one bigger window. I have two gameboys, and both the headphone jacks look like this.

See the photo.
Attachments
IMG_5093.jpg
DMG headphone port
IMG_5093.jpg (2.97 MiB) Viewed 4792 times

User avatar
Fleder
Posts: 848
Joined: Thu May 05, 2016 9:04 am
Location: Germany
Has thanked: 182 times
Been thanked: 257 times

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by Fleder » Wed Aug 24, 2016 6:29 am

BigEternalEnd wrote:Hi,

I've been lurking in these forums for a while as I build my gameboy zero. I'm getting ready to work on sound. My DMG headphone jack seems to behave as alien0matic describes it. Perhaps there are indeed two different versions of the DMG jack. There are subtle differences between the tops (non-pin side) of the jacks in the first post and mine. Namely, there is no "3-1" imprint and there are two smaller windows exposing metal on the side opposite of the jack, instead of one bigger window. I have two gameboys, and both the headphone jacks look like this.

See the photo.
This looks like a 4 pin jack, as far as i can tell by that blurry picture.

User avatar
Mischief
Posts: 225
Joined: Sat May 21, 2016 7:50 am
Location: Wolverhampton, UK
Has thanked: 29 times
Been thanked: 68 times

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by Mischief » Fri Sep 09, 2016 6:59 am

After having issues with bad audio from my GBZ I thought I would look into if I was wiring the headphone jack wrong. I am now having the same issues with the DMG audio jack as above, I have the wires from the amp to Left out from the amp = pin 2, Right out from the amp = pin 5 Ground from amp = pin 1 and I get audio from my headphones (without any more audio issues YAY!), But then I hooked the speaker positive to pin 3 and ground from speaker to pin 1 and I get no sound from the speaker no matter if I have headphones plugged in or not.

Any help would be appreciated.

Cheers
John

valfar
Posts: 14
Joined: Fri Sep 02, 2016 4:36 pm
Has thanked: 10 times
Been thanked: 3 times

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by valfar » Fri Sep 09, 2016 7:03 am

Hi guys

I ordered before I found this guide these audio jack socket:

Image
http://www.ebay.co.uk/itm/182134092359? ... EBIDX%3AIT

Can you please advise me as to involve this type?

User avatar
Perifferal
Posts: 6
Joined: Fri Sep 09, 2016 5:24 pm
Location: Netherlands
Has thanked: 3 times
Contact:

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by Perifferal » Sat Sep 10, 2016 5:55 pm

valfar wrote:Hi guys

I ordered before I found this guide these audio jack socket:

Image
http://www.ebay.co.uk/itm/182134092359? ... EBIDX%3AIT

Can you please advise me as to involve this type?
My best guess would be to use a multimeter and just see which ones connect (both with headphones plugged and without). You can then just draw your own diagram. It's a shame the retailer did not include it on the page. It might also be that there is no 'switch' value (LR out might be connected to ground as such), which would mean that you can't use it to switch between speaker and mic.

zerogeek
Posts: 9
Joined: Mon Aug 01, 2016 8:55 am
Has thanked: 3 times
Been thanked: 5 times

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by zerogeek » Sat Sep 10, 2016 8:34 pm

BigEternalEnd wrote:Hi,

I've been lurking in these forums for a while as I build my gameboy zero. I'm getting ready to work on sound. My DMG headphone jack seems to behave as alien0matic describes it. Perhaps there are indeed two different versions of the DMG jack. There are subtle differences between the tops (non-pin side) of the jacks in the first post and mine. Namely, there is no "3-1" imprint and there are two smaller windows exposing metal on the side opposite of the jack, instead of one bigger window. I have two gameboys, and both the headphone jacks look like this.

See the photo.
I have the same DMG jack (actually 2) as BigEternalEnd - no "3-1" on the top side. If you flip it over with pins up and jack facing you (these are desoldered from the board) and use the numbering scheme from the diagram on p1 of this thread you get the following with a DMM:

NOTHING PLUGGED IN
Pins 3 & 4 have continuity, nothing else

JACK PLUGGED IN
Pin 1 = Sleeve (Ground)
Pin 5 = Ring (Right)
Pin 2 = Tip (Left)

I'm not sure, but based on these findings, I don't understand how this jack will pass audio to the speaker with nothing plugged in. However, it DOES appear that the 1, 2, 5 pinout for using headphones would be right.

I would be VERY excited for anyone to correct me. If not, I'll make a stop at Radio Shack in the morning and pick up Catalog #2740246.


THANKS IN ADVANCE!

User avatar
Oxodao
Posts: 131
Joined: Wed Jun 01, 2016 11:35 am
Location: 127.0.0.1
Has thanked: 4 times
Been thanked: 30 times
Contact:

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by Oxodao » Sat Nov 19, 2016 4:49 am

Insane :o

If you want to save space for some reason you can use Nexus 5's headphone jack, they are tiny though I don't think they can differenciate when the speaker is plugged or not...
http://www.ebay.com/itm/BRAND-NEW-HEADP ... Sw7hRWQvxr
Arduino sketch for the gamepad (Teensy replacement): http://github.com/oxodao/GBZGamepad

larsen2011
Posts: 35
Joined: Sun Jul 17, 2016 11:37 am
Has thanked: 16 times
Been thanked: 4 times

Re: [Guide] Audio-/Headphone Jack Information Thread

Post by larsen2011 » Sun Dec 04, 2016 10:44 am

alien0matic wrote:I did use a DMM, I inserted a headphone into the jack and I measured continuity on all pins. There are NO output pins.
The pins you labeled with 1, 2 and 5 are correct to be ground, left in and right in. But there is NO continuity betweent pin 3 and pins 1,2 or 5. Same goes for pin 4.
But there IS a connection between 3 and 4. The connection is cut when the headphone is inserted.
Have a look into this thread: http://www.sudomod.com/forum/viewtopic.php?f=22&t=197
He connected the input pins (2 and 5) to pin 4 and pin 3 to the speaker. I did something similar, I have stereo sound connected to the jack and forward right to Pin 3.

I only have this image, everything else is blurry. Green is left, yellow is right, black is ground. White goes to the speaker. The jack is in the same orientation as in your image. This way everything works as expected.
[spoiler="wiring image"]IMG_20160807_130332.jpg[/spoiler]
I second that. After wiring per the general wiring diagram and per the shown wiring for the original GB jack, I had no sound. After checking the resistance on my jack and reading through this thread, I found my jack to also be different to the one shown in the first thread. The wiring from @alien0matic works perfectly.

@Fleder here are some pictures of my jack, which are not as blurry as the ones yet in here, in case you want to update the first post, showing that there might be different wiring solutions.
IMG_7507.JPG
IMG_7507.JPG (144.66 KiB) Viewed 4407 times
IMG_7508.JPG
IMG_7508.JPG (142.38 KiB) Viewed 4407 times

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest