Changes
/* Pictures */
Image:Cartridge-PT-NO-Z90903-MS0201A-Installed.jpg|Components installed
Image:Cartridge-PT-NO-Z90903-MS0201A-Bottom.jpg|Solder Side
</gallery>
<gallery caption="PT-NO-Z90903-MC0121A (with custom LKs)">
Image:Inside GX4000 cart 1.jpg|Components installed
Image:Inside GX4000 cart 2.jpg|Solder Side
</gallery>
<gallery caption="2700-023P-1 (with hardwired LK1 and LK6)">