View Single Post
  #1   Report Post  
Posted to sci.electronics.repair
werty werty is offline
external usenet poster
 
Posts: 26
Default grind off solder mask to get down to copper


Whats the chemical to take off the

solder mask , so i can solder to tiny

PCB traces ? I guess some acid that

wont harm copper .

Im Hacking the connector on a

game box "GP2X" .

I want my own , more robust connector

where all the USB lines are heading off

board in same direction .

mail is

x-x-x-x-WERTY-x-x-x-AT-x-x-x-x-x-
x-x-x-x-S_W_I_S_S_I_N_F_O-x-x-x-x-
x-x-x-x-ORG-x-x-x-x-

BTW im also doin ARM 7 mcu's .
Ill hook up a $44 ARM7 with USB
as a "peripheral" to control KB
and LCD , and pass on important
stuff to a central ARM7 . I test
code on the first ARM 7 , so
the central 7 , can't crash .
Central ARM 7 can boot the other
in milliseconds .
I will use low cost LCD ,BW , $10
from BG Micro .
This project is unique , because it
will never use text . There will be
icons and images on the LCD to
show you what is happening .