Description
Mitsubishi LOP display board LHH-200AG21 Brief introduction
| Mitsubishi LOP display board | |
| Brand | Original |
| Model | LHH-200AG21
LHH200A/200B/200C/200D/G11/G14/G21/G24 |
| Goods No. | PE2401 |
| MOQ | 1 |
| Warranty Time | 1 year |
| Certificates | ISO9001 |
| Brand | Mitsubishi |
Mitsubishi LOP Display Board LHH-200AG21 – Installation, Calibration & Replacement Guide
Nanjing Zhuye Elevator Parts – OEM stock, global shipping, 24/7 support
Nanjing Zhuye Elevator Parts – OEM stock, global shipping, 24/7 support
The LHH-200AG21 is the slim-line, high-brightness Landing Operating Panel display board that sits behind every Mitsubishi LEGY, NEXIEZ and ELEPAQ landing fixture delivered since 2015. Driving a 3-digit 7-segment floor indicator, directional arrows and up to 24 illuminated buttons, this 24 Vdc PCB communicates via RS-485 differential pairs and updates the display every 50 ms. A single faded segment or a cracked RS-485 transceiver will throw a “71” fault and blank every landing button overnight. Nanjing Zhuye Elevator Parts keeps thousands of factory-tested LHH-200AG21 boards in Rotterdam and Nanjing so you can restore perfect indication the same day. Below is an 800-word field manual that explains correct usage, on-site calibration and the replacement cycle that keeps your elevators accurate, bright and code-compliant.
1. What the LHH-200AG21 does
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3-digit 7-segment red LED display, 180 cd/m² @ 24 Vdc, 170° viewing angle
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24 button inputs with diode-matrix ghosting protection
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RS-485 differential interface, 19.2 kbit/s, CRC16 error check
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On-board 5 Vdc buck, 2 A, short-circuit and thermal protected
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IP40 ABS housing, 18 mm depth, key-hole slots for 30-second swap
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UL/CE recognised to EN 81-20/50 and CSA B44.1 for 10-year design life
2. Tools to carry
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LHH-200AG21 display board (Nanjing Zhuye part #MB-LOP-LHH200AG21-LED) in anti-static bag
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2 mm & 3 mm flat screwdrivers, TX10 Torx
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Mitsubishi ELEPAQ Service Tool (EEST) laptop with LOP plug-in licence
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RJ-45 to M12 adapter cable (2 m, shielded)
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IPA wipes and lint-free cloth
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Feeler gauges 0.05–0.2 mm
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Lock-out / tag-out kit
3. Installation – 10 minutes if you label the wires
Safety: place the car on inspection, open the main disconnect and verify 0 V on the 24 Vdc rail.
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Photograph every J-connector – note J1 (24 V), J2 (RS-485), J3 (buttons), J4 (display).
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Depress the bezel latches and hinge the LOP mask forward; store screws in magnetic tray.
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Slide the old board upward; it unhooks from the plastic dovetail.
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Clean the bezel and gasket with IPA; remove any glue residue.
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Fit the new LHH-200AG21: hook top edge first, press until latch clicks.
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Re-connect all plugs; tug-test each one.
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Apply power – STATUS LED blinks green 3 times then solid; display shows current floor.
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Press each button; confirm call registers and halo extinguishes after door close.
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Record serial number, date and button map in CMMS.
4. Functional test – prove it to the controller
a) Button actuation force: 1.5 N ±0.3 N at plunger centre.
b) Display brightness: 180 cd/m² measured with lux meter.
c) RS-485 differential voltage: 2.0 V ±0.2 V under 120 Ω termination.
d) Floor accuracy: display must change within 50 mm of car level.
e) Export EEST report and attach PDF to site file.
b) Display brightness: 180 cd/m² measured with lux meter.
c) RS-485 differential voltage: 2.0 V ±0.2 V under 120 Ω termination.
d) Floor accuracy: display must change within 50 mm of car level.
e) Export EEST report and attach PDF to site file.
5. Preventive maintenance schedule
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Monthly – visual sweep for cracked lenses or dark segments.
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Quarterly – measure 24 Vdc ripple (<100 mV) and RS-485 termination (120 Ω).
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Annually – clean button mat with IPA; inspect for carbon tracks from arcing.
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Every two years – replace the anti-scratch lens film – keeps display crystal-clear.
6. Replacement cycle – traffic and environment decide
Mitsubishi specification: 10 years. Nanjing Zhuye analytics refine this:
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Light duty (<150 starts/day, clean office): 12 years
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Standard duty (150–400 starts, residential): 10 years
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Heavy duty (>400 starts, hospital, mall): 8 years
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High humidity (>80 % RH, coastal): 6 years – edge connectors corrode.
Replace immediately if:
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Display digits missing or segments flickering – driver IC blown
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RS-485 error rate >1 % – transceiver cracked by vibration
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Button halo <50 % brightness – LED chain degradation
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Housing cracks exposing live parts – safety violation
7. Eco-disposal & warranty
Return the old board in the recycling envelope; Nanjing Zhuye recovers gold, copper and ABS and issues a €5 recycling credit. Every LHH-200AG21 ships with a 24-month replacement warranty, extendable to 60 months when you join our annual lens-replacement program.
8. Why buy from Nanjing Zhuye Elevator Parts
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3,800 units in stock, Rotterdam & Nanjing, ready for same-day courier
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Factory-sealed Mitsubishi packaging with hologram – no grey-market clones
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QR code on bag links to 90-second install video and button-map template
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24/7 technical hotline staffed by ex-Mitsubishi field engineers
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Bundle pricing: buy 10 boards and get a free lens-polishing kit plus freight credit
9. Bottom line
A dark or flickering LOP is the fastest way to passenger complaints. Keep genuine LHH-200AG21 boards in every service kit, swap them in 10 minutes, and your landings will stay bright, accurate and code-compliant for the full 10-year design cycle. Order today from Nanjing Zhuye Elevator Parts – the fastest route from “dead display” to “perfect indication.”
