Tetris (Bootleg) repair by Womble
From Arcade Otaku Wiki
Took pity on an old Tetris bootleg board that I acquired; think it was listed as having corrupt graphics.
Fired it up and that was pretty accurate!
Had already spotted the likely candidate though; a big scratch on the otherwise mint solder-side of the board.
As usual the tracks that looked the worst were actually OK and the ones that looked like they had survived were totally cut through, only 3 in fact. So I soldered in short lengths of hookup wire to bridge the cut tracks, also resoldered a very dry joint on one of the main smoothing capacitors, the solder had never wetted the leg of the cap and it was totally loose on that leg.
Plugged it all back in and fired it up...
..fixed :)
Another nice easy one.
