Hi,
I repaired black screen on MSX fenner spc-800 after replaced the Z80 CPU. Now there is a keyboard issue, the space bar didn't work.
I disassembled the keyboard and i found the broken tracks with tester. Attached image with red arrows.
How I can repair the broken tracks? conductive tape?
what kind of material i can use?
thanks 
I bought a conductive pen from china and i repaired the line. I have used multiple applications and now the keyboard work correctly. 
I bought a conductive pen from china and i repaired the line. I have used multiple applications and now the keyboard work correctly.
Please provide the link to the pen you've bought, thanks.
