ec and keyboard mistake msi GL63

[tikanot]

hello i have change the ec of motherboard msi gl63 because lot of key of keyboard not work, i have put a new keyboard too , i have test the keyboard and it's ok, after the change of the ec i have key a ,r and d not working. all other work great. I have take the ec from a donor motherboard and i have program the ec. i have check 3 time the ec solder and the pad of keyboard in the ec and one time after doing solder and all assembling key a work but it's does a and z key too and zz do key a too . I have recheck the solder and after reassembled key a ,r and d not work too. I don't know where too search if it's the motherboard connector of keyboard dead, i have azerty keyboard.i have see with the tester a,d and r is in same line

[ktmmotocross]

Re: ec and keyboard mistake msi GL63

u nned to check what line/lines is not working
this line/lines have bad connection from EC.

[mcplslg123]

Re: ec and keyboard mistake msi GL63

If on pressing a single key, two gets typed then there can be 2 reasons:
01.KBD is bad
02.EC pins are joined with each other by solder. So check carefully under microscope. I had the same symptoms on HP R33 mb and was resolved by removing the solder blob on 2 adjacent pins(it was worked upon by some technician).

[tikanot]

Re: ec and keyboard mistake msi GL63

i have dissassemle the keyboard connector and i find a bent pin inside

[tikanot]

Re: ec and keyboard mistake msi GL63

i have receive the new connector and done again the ec solder and with 3 keyboard a, r, and d key is not working. I wait to receive new ec i check i diode mode the keyboard connector and i have 0,8 at all the pin only one pin 1,1v

[tikanot]

Re: ec and keyboard mistake msi GL63

i resolve the mistake i check the connector with sasio cable with diode mode , and after i do again all the solder of the keyboard ec and check all the pin , and now all the key work.