Speaker wiring

If you're making a portable you probably need something to watch it on. (Unless you want to guess what's happening in the game, but I wouldn't advise that) Anyway, this forum is your "Hacking a pocket TV/screen" one-stop solution. Share your experiences and knowledge here.

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G-force
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Speaker wiring

Post by G-force »

I am really getting tired of this screen from my friend......

The problem is he ripped off and lost the wires that go to the speakers.
I know where the leads for the speakers are and I have some thin wire soldered on, but I dont know which lead is positive and which is ground. :?
Could dome one PLEASE post a pic of the speakers plugged into the lcd? Thats all I really need. PLEASEEEE!!!
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Post by gannon »

You could use a multimeter to check for continuety between the speaker lines and ground, the one with 0 resistance is ground :)
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Post by JackFrost22 »

wait it matters oh crap op wonder i fried it :oops:
G-force
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Post by G-force »

I tried that first thing and all I got was a bunch of weird numbers, it never reached 0.

Oh yeah, it migh help to say what kind of screen it is. :lol: I'm tired.... Its a Sony PSone screen.
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Post by Gamelver »

for some reason, neither of the speaker outputs aren't connected to ground :?.....(at least, last time I checked each pin neither was connected to ground....)
to solve your problem G-force: just hook up a wire to each speaker output pin, then hook up one wire to the positive speaker lead, and the other to the negative speaker lead. turn on the screen and input some sound...if it works, great :), but if not, then simply reverse the wires and try again :). if all of this still doesn't work, then perhaps you're inputting the wrong audio (like right instead of left...) also, you may have to jump some resistors, as I had to for the psone screen in my GCp......
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Post by A.J. Franzman »

If you get the wires reversed to a speaker it will still make sound but will have the wrong phasing. If you have one speaker of a stereo pair that is out of phase, good stereo recordings with sounds coming from different positions between the speakers will instead seem indistinct, like the sounds come from everywhere at once. If both are out of phase, the stereo image will be OK but sounds with a sharp attack, like hand claps or cymbal hits, will move the speaker cone inward instead of outward at the start of the sound, so the sound will seem a little less crisp and powerful.
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G-force
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Post by G-force »

Yep, thats pretty much what my dad said. Thanks, A.J.

I really need a pic of the speaker wires plugged into the LCD board. Then I can finish this screen. It is really cool looking. So heres some incentive: If some one puts up a pic, I will send a pic of my new portable NES I'm working on, with the screen attached! :D Trust me, it's worth it, it looks friggin cool!
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Post by G-force »

Please! Somebody post a pic of the speakers plugged in! It's all I need to finish my modded screen :( Please......
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Post by HK-47 »

This help?
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G-force
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Post by G-force »

Yessss! Thank you! Thank you! Thank you! Thats what I needed :D
I know I've seen that pic before I just don't know where....probably the 8-bit forum...How did you find it?

Well, looking at the pic it looks like the top pin on the right is positive, and on the left the bottom pin is positive. That makes sense because then you could plug either speaker in either plug and it would work :D

Wooho! I'll post pics of the screen when I'm done, hopefully tonight.
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Post by A.J. Franzman »

G-force wrote:Well, looking at the pic it looks like the top pin on the right is positive, and on the left the bottom pin is positive. That makes sense because then you could plug either speaker in either plug and it would work :D
Wait! Strike that. Reverse it.

Red is positive; bottom wire on the right & top on the left.
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Post by HK-47 »

G-force
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Post by G-force »

Wait! Strike that. Reverse it.

Red is positive; bottom wire on the right & top on the left.
Aigh! When I was typing I screwed it up :oops: I knew what it was, I just typed it wong.
I looked there first place and I must have missed it. I probably didn't wait long enough for the pic to load :roll: . Thanx for posting it :D
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