RF4 CX71R 6.5-65X Trinocular Stereo Microscope

Trinocular Stereo Microscope for Phone Repair Benches

This trinocular stereo microscope for phone repair helps you find the fault faster. You can check a motherboard at low power, then zoom in on a single pad or joint without changing the head. The CX71R suits technicians who handle dead phone boards, charging faults, and display connector repairs every day. It also fits PCB repair work where precise inspection matters as much as the repair itself.

Optical Head and Zoom Range

The head uses a 30° tilt and 360° rotation, so you can set the eyepiece angle that feels natural for your neck and shoulders. The PL10X/23mm eyepiece pairs with a 0.65X–6.5X objective, and the 1:10 zoom ratio gives you smooth control across the full range. At the low end you see a wide field of view of about 34 mm, which helps when you scan a board for burnt components or lifted pads. At the high end the field narrows to about 4 mm, enough to examine a single solder ball or a hairline trace. The bilateral diopter adjustment covers ±5 diopters, so each eye can focus independently. The manufacturer also states that the optical path and lens were redesigned for clearer imaging.

Working Distance and Mounting Fit

The CX71R offers a 105 mm working distance. That gap gives you room for tweezers, a soldering iron, and a hot air nozzle without hitting the lens. The focusing bracket has a 76 mm inner diameter, and the column aperture is 32 mm. Measure your existing stand before you order, because the column size decides whether the head mounts directly. The base measures 380 × 260 mm, which gives the stand a stable footprint on a crowded bench. Pupil distance adjusts from 54 mm to 76 mm, so you can match the eyepieces to your own eyes.

Lighting, Camera, and Monitor Output

The OK-9 144 LED lamp provides the main illumination for board-level work. Lighting that stays even across the field reduces eye strain when you inspect reflective solder joints. The head includes HDMI and USB interfaces, so you can connect a monitor or computer for high-quality video output. A digital HD camera can be installed on the head to film each step of the process. The transparent lens inside the adapter ring allows the microscope view and a second display to zoom in sync. This setup works well for team training at a repair shop or for showing a customer exactly what failed. Confirm the package contents before buying, because the camera is an addition you install.

Where It Fits in Your Repair Workflow

Most board-level jobs start with a visual check. Use the low magnification to look for corrosion, cracked components, and bridged pins before you power the board. Then move up in zoom to examine IC pads and joints before a jumper lagana or IC change karna procedure. After a reballing or reflow job, the same head helps you judge ball placement and solder quality on the BGA. The CX71R connects naturally to your other repair tools. Pair it with a Hot Air Station or Soldering Station for rework, a Reballing Kit for BGA work, and a PCB Holder to keep the board steady under the lens. If you later need a higher-zoom model, the RF4 range offers other trinocular heads in the same family.