a02b-0120-c051
FANUC CRT MDI Unit A02B-0120-C051
A02B-0120-C051 is listed by the seller's shop as a MAR CRT MDI operator interface — a combined CRT screen and keypad unit from the CRT era of FANUC controls.
What A02B-0120-C051 is
A02B-0120-C051 is an operator interface unit of the CRT generation: screen and MDI keypad — the manual data input keys — combined in one panel unit, listed by the seller's shop under the MAR CRT MDI description. It belongs to the displays family, in the CRT form that family still publishes because so many machines in service still wear one.
Combined units concentrate the operator station in a single replaceable part. When one fails, the machine loses its screen and its keys together, which is why CRT MDI units are ordered with more urgency and less deliberation than almost anything else in the catalogue — and why this page front-loads the identity checks.
Where A02B-0120-C051 works
The unit fronts a control of its era: everything the operator sees and presses passes through it. Its CRT is its mortality — tubes age, dim and fail — while its keypad side ages mechanically. A fault can therefore be optical, electrical or key-mechanical, and the three have different remedies, from this shelf unit to a board behind the panel in the PCBs family.
The A02B table lists this number among the displays, beside the A02B-0303-C084; buyers who read a number off a dark panel should confirm the role there before ordering, because the same prefix range also carries the control units themselves.
Condition options for A02B-0120-C051
CRT-era units live in the used and new-surplus end of the catalogue by nature; the listing does not pin a permanent condition word, and the answer on inquiry states the condition of the unit held. For a CRT unit, condition is mostly a statement about the tube — brightness and burn — and the desk's condition answer addresses the picture the unit actually shows.
The used FANUC parts page carries the framework: stated condition, a lit test before dispatch, the seller's warranty, and a test video on request — the single most useful artefact for a screen, since the buyer can judge the picture with their own eyes before paying.
Testing A02B-0120-C051 before dispatch
The unit is lit and run on the test bench before dispatch, keys exercised and picture observed through warm-up. CRT faults are warm-up artists — a tube that lights brightly cold and sags in twenty minutes is a failed tube for ordering purposes — so the bench run for this number is deliberately not a short one.
A buyer's own CRT MDI unit with a sound tube but dead keys, or sound keys and a dying tube, is a repair conversation: the assessment separates the halves, and the shelf unit stands as the alternative if the repair does not price out.
Ordering A02B-0120-C051
Quote A02B-0120-C051 in full from the rear label, and name the control the unit fronts. Describe the fitted unit's state in one line — dark, dim, distorted, keys dead — because on a two-function unit the description tells the desk which half the conversation is about. State the condition you will accept, and ask for the test video by name if the picture matters, which on this unit it always does.
Related pages
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Send the part numbers you need, or the number of a unit you want assessed, with the machine each belongs to. One desk answers for the shelves and the bench.
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