23 inch Broadcast Technology Monitor

The Zunzheng BM230 is a lightweight 23" Multi-Format broadcast monitor with 3G/Dual-Link/HD/SD-SDI, Component, Composite, & DVI-I Inputs. Like all BM series monitors this unit features full 12-bit video processing and a native 1920x1080 resolution 8-bit panel capable of reproducing over 16.7 million colors on screen. The BM230 offers support for virtually any signal format from NTSC/PAL to HD and 2K, including advanced 12-bit, 4:4:4, and XYZ signal formats.


Color space management is handled by our CFE2 Color Fidelity Engine. This advanced second-generation 64x64x64 Matrix 3D LUT processor ensures a high degree of accuracy in any color space mode. Select between Rec 790, EBU, SMPTE-C, DCI-P3, Native Wide Gamut, and Custom User Generated color spaces. CFE2 supports custom calibration LUTs as well as DIT LUTs that do not require profiling of the panel with a probe before import (e.g. BlackMagic Design Film Mode to Rec 709 LUT, LogC to Rec 709 LUT, etc.)


The BM230 is equipped with 3Gbps SDI (SMPTE 425M-AB) & Dual-Link SDI (SMPTE 372M) inputs, which provide support for advanced formats including 4:4:4 RGB, 4:4:4 YCbCr, and 4:4:4 XYZ signals. With support of both Level A and Level B 3Gbps SDI the CM172 is compatible with virtually all 3Gbps SDI sources and provides many advanced viewing modes for multiplexed (2x SMPTE 292M) Level B signals as explained here.


All Zunzheng monitors come standard with 13 Mode On-Screen Scopes. Up to two types of Scopes can be displayed simultaneously and can be toggled on/off instantly with a single button press. Scope Windows can be displayed in any of 6 onscreen locations and the two scope windows can be stacked on top of each other or sit side by side for maximum flexibility. Zunzheng is also one of the few companies to provide this scope functionality across all inputs, even DVI. This means that full scope functionality is possible while using many of today’s most popular HD-DSLR cameras that only offer HDMI output.



Built-in audio disembedder and internal speakers allow you to listen to any single channel or stereo pair of embedded audio channels pulled from HD/SD-SDI video on the internal speakers or via the monitor’s audio line out. This disembedded audio is always delayed by the exact amount of video processing and pixel response time to ensure perfect lip sync for audio critical applications. Meter all 16 channels of embedded audio on screen either in a horizontal layout (VU with dB readout) or next to one of the Scope Mode Windows displayed in a vertical layout (PPM).




· Native 1920×1080 Resolution HD LCD Panel

· 12 Bit Video Processing, 8 Bit LCD Panel (16.7 Million Colors)

· CFE2 Color Management, supports both look LUTs and calibration LUTs

· Simultaneous Viewing of Two Inputs, mixed formats supported

· Instantly Selectable Rec 709, EBU, SMPTE C, Native Wide Gamut, & Custom User Created Color Spaces

· Standard 3Gbps SDI Inputs Included for Support of Advanced SMPTE 425M-AB Signals

· 4:4:4 YCbCr, RGB, & XYZ Signal Support

· Timecode Display ( VITC 1, VITC 2, LTC )

· Automatic On-Screen Indication of Source Frame-rate & Resolution ( toggle on,off, or 5 second display)

· DSLR Zoom for Full Screen Scaling of DSLR Sources

· On-Screen Alarms ( IRE Threshold, RGB Alarms, Loss of Signal, Audio Mute, and more )

· Adjustable Focus Assist ( Focus Meter and Focus Highlight in Red )

· Wide Variety of Standard Markers & Safety Areas

· User Adjustable Custom Marker Feature

· Pixel Zoom Feature – Adjustable Artifact – Free Zoom On Any Portion of HD Signal 

· CX Scale ( video example ): Full Screen and centered scaling of Codex ARRIRAW Recorder output

· Active Video Boundary Marker

· H/V Delay 

· Blue Only Mode

· Monochrome Mode

· HD Anamorphic De-Squeeze ( 1.3x, 2.0x, 2.0xMag )

· AFD Reader

· Overscan/ 1:1 scan

· Freeze Frame Picture by Picture ( Sub Window )

· 13 Quickly Selectable Scopes ( Display Up to 2 at the Same Time )

· Luminance Waveform with Adjustable Intensity

· Vector Scope with Adjustable Intensity and Gain Expansion

· Hue Vector Scope with Adjustable Reference Vector

· Color Coded RGB Parade with Adjustable Intensity

· Color Coded GBR Parade with Adjustbale Intensity

· RGB Overlay with Adjustable Intensity

· Column Scope Showing Min/ Max YRGB Range

· Histogram, Color Histogram, & RGB Histogram Scopes

· YCbCr Scope with Adjustable Intensity

· YCbCr Overlay Scope with Adjustable Intensity

· Audio Phase Meter ( Select Any Stereo Pair of Embedded Audio Channels )

· Audio Disembedding to Built – In Speakers or Audio Output

· 16 Channel Audio Level Meters

· Color Temperature Selection

· Gamma Selection ( 1.0~ 2.8 ) as well as C-Log / S-Log / S-Log2 / BMD-Log monitoring modes

· SD Aspect Ratio Selection ( Anamorphic / 4:3 )

· Advanced Pixel Level Measurement Feature

· Exposure Level Indication with LUM Coloring feature

· Remotely Controlled Tally Lights ( Red / Green / Amber )

· Camear Record Status Indication triggered by Camera SDI Flag

· Durable Diecast Aluminum Frame

· Compatible with ZUNZHENG’s Direct Connect Automatic Alignment as well as LightIllusion’s LightSpace CMS









Basic Desktop Stand for BM230


The standard BM230 come with this basic desktop stand.




Rack Mount Kit

(VESA Compatible)


This VESA Rack Mount Kit allows you to mount the CM171 in/on a standard 19" Rack. This Rack Mount Kit provides adjustable depth and tilting capabilities and is an easy to use mounting alternative for larger monitors that would otherwise not fit in/on a rack.



  V-Mount Power Plate

This standalone battery plate fits easily inside the accessory pockets of the Carrying Bag with Integrated Hood for the monitors.



AB Power Plate


This standalone battery plate fits easily inside the accessory pockets of the Carrying Bag with Integrated Hood for themonitors.



File size 1.4MB(Test edition)


File size 1.4MB(Release)

Zunzheng Warranty Provisions

File size 19K, English version.

Upgrade instructions

File size 1.4MB, English version.

Color Calibration

File size 14K, English version.