DNS part numbers EEMP-0021X3 and EEMP-0013 are LCD monitors that can be used in either the 60A, 60B, 80A, or 80B tracks, depending on the track configuration.

Monitor installed in DNS 80B

Monitor installed in DNS 80B, telescoped out

These can fail or malfunction if installed in a tool not configured for that exact part number.  EEMP-0021X3 is a full color display, whereas EEMP-0013 is a monochrome display.

DNS EEMP-0013 Monochrome LCD monitor installed in 80B

DNS EEMP-0021X3 Color LCD monitor installed in 80B

A known symptom of color vs. monochrome incompatibility is loss of directional sync on the monitor.  The screen image will continuously and uncontrollably “roll” like the images in a slot machine.  Another failure symptom is no image at all, but this is less likely a compatibility issue as opposed to general circuit failure.  In either case, GetSpares.com maintains a fully operational DNS 80B track and parts, as well as the capability to repair and test parts.  If your DNS LCD monitor is failing, contact GetSpares for quality repair/replacement solutions.