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Mitsubishi Electric QX524C / BN634A636G51 PCB Board

$599.99 USD

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✓ 30-day returns on every item — return policy

ConditionSurplus - Untested MPNQX524C / BN634A636G51 Stock #0226-00365

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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Mitsubishi Electric MELDAS PCB board, model QX524C, part number BN634A636G51. This is the CRTC graphic display and video communication board for the Mitsubishi MELDAS M-Plus and T-Plus CNC control series, also used on Mazak MAZATROL M-Plus and T-Plus controls. Per manufacturer specifications, the QX524C manages video output and display functions for the 14-inch color monitor on MELDAS M-Plus and T-Plus equipped machine tools. The board designation 3DTN500 QX524 is visible on the orange identification label on the reverse side. A Mitsubishi Electric barcode sticker is affixed. The board is populated with a Mitsubishi MELDA-S MAC202 BH5C custom ASIC (5D4, Made in Japan), a 45.000 MHz crystal oscillator (CU oscillator, 1347, 45.0000, 541JPN), HD64180 series processor or equivalent, and supporting logic ICs including HD6548 series and HD625604 memory devices visible in photo 2. PBUS and SBUS connectors are present on the board edge. The QX524C is confirmed by multiple US industrial CNC suppliers as a current spare and replacement part. Per field documentation, the board includes four status LEDs; the top two indicate data transfer between operation boards and the lower two (FBAL1 and FBAL2) indicate balance fault status. Compatible with Mitsubishi MELDAS M-Plus, T-Plus, and equivalent Mazak MAZATROL M-Plus and T-Plus CNC machine tool controls. UL recognized component marking visible (SMB1A, 94V-0).

Stock # 0226-365

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Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.