Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > General Electronics Technical Discussion
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 09-12-2018, 04:14 AM   #1
capullaco
Member
 
Join Date: Aug 2010
Posts: 40
Default Problem with mechanical keyboard

I have a James Dlonkey 619 keyboard, which lately has been having problems with the "2" and "A" keys, so I opened the keyboard to change the "Pause" and "Scroll Lock" switches for the "2" and "A" ones.
One of the problems, is the mini usb PCB connector, was badly soldered, and it had some glue to make the connectors stand still (I already removed the glue in the pics):

https://imgur.com/l7hKrpT

https://imgur.com/T90CeYi

So I used a logitech mouse cable instead, since it has the same connector, but the keyboard doesnt work. It lights for a second, blinks 3 times, then turn off. Could it be because it needs that small PCB? the other side of the USB is just plain, doesnt have any component besides the USB connectors.

I also thought it could be because one of the leds (they are on the top of the switch, you can see them on the second pic, those 2 small solders on top of every swtich, with a + sign) fell, and I soldered without checking if they were placed correctly (the + sign), since I dont know it makes a difference or not, so I desoldered this led, but still the same problem.

What could it be?
capullaco is offline   Reply With Quote
Old 09-12-2018, 08:16 AM   #2
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 19,115
Default Re: Problem with mechanical keyboard

you wired it wrong,
that lifted track goes to a pin you need.
search usb pinouts and you will find what you need
stj is offline   Reply With Quote
Old 09-12-2018, 01:20 PM   #3
capullaco
Member
 
Join Date: Aug 2010
Posts: 40
Default Re: Problem with mechanical keyboard

Thanks, I bought a USB mini breakout board, will see if that fixes the problem.
capullaco is offline   Reply With Quote
Old 09-12-2018, 02:41 PM   #4
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 19,115
Default Re: Problem with mechanical keyboard

yea, you can buy small pcb's with mini or micro usb sockets on them for breadboarding - i have some.
get them in 10's for a $ or 2 on ali-express.
stj is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2018
Powered by vBulletin ®
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 02:19 PM.

Did you find this forum helpful?