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Hitachi CM751 SuperScan 751

A 19-inch flat-faced SuperScan multiscan shadow-mask monitor with a high-bandwidth analog input.

Original local schematic for Hitachi CM751 SuperScan 751; not a product photograph
MODEL-SPECIFIC LOCAL SCHEMATIC // NOT TO SCALE

IDENTIFICATION: Match the complete model and regional suffix on the rear label. Published CRT timing limits do not guarantee a particular used unit's condition; verify the tested host, cable and displayed mode.

Specifications

Catalog subcategoryCRT displays
Exact product / familyHitachi CM751 SuperScan 751
Tube diagonal & image geometry19-inch nominal tube with about 18-inch visible diagonal; flat shadow-mask screen, 0.26 mm dot pitch and 4:3 geometry. OSD supports raster sizing, positioning and geometric correction.
Resolution & refreshMaximum 1600 × 1200; a typical high-resolution timing is 1600 × 1200 at 75 Hz. Horizontal scan range 31–93 kHz, vertical range 50–160 Hz.
Video inputsOne 15-pin D-sub analog RGB/VGA input; VESA DDC/DPMS support. No BNC or digital input is listed for the base CM751.
PowerApproximately 130 W nominal; below 30 W in power-save and below 5 W when off. Confirm voltage and current on the rear nameplate for the regional unit.
Host compatibilityConnect to PC or workstation analog VGA within the listed scan range. To connect HDMI/DisplayPort-only systems, use an active converter capable of the desired pixel clock and analog timing.

Identification and compatibility notes

The manual groups CM751 and related ET variants in places. This record uses the base CM751's 19-inch-class image and timing details; suffix-specific cabinets or controls may differ.

Record the rear-label model, regional voltage rating, video connector used, source timing, adapter chain, visible image area and geometry/convergence condition. CRTs contain hazardous high-voltage circuits and heavy components; internal service belongs to qualified technicians.

Manufacturer documentation and sources

  1. Hitachi — CM751 SuperScan 751 user manualModel manual for setup, display timing and controls.
  2. Hitachi — CM-751 service manual archiveArchived service manual with model-specific technical and electrical data.