SJ/T 11991-2025 Electronic Projector Test Methods
Function measurement methods for electronic projectors
Standard Details
SJ/T 11991-2025 (English Version)
- English translated version
- Sent to your email in 24h
SJ/T 11991-2025 (Chinese Version)
- Chinese original version
- Sent to your email in 12h
Standard Introduction
Behind every projector on the market is a stack of tests that verify it can handle heat, switch signals without freezing, and keep the image in focus.
This standard, published in May 2025 and effective August 2025, codifies those tests into 65 specific method clauses.
It was drafted by a working group that included CESI, BenQ, Epson China, and several national testing institutes, so the procedures reflect real factory floor and lab experience rather than ivory-tower theory.
Standard Catalog
The standard consists of the following main sections:
1 Scope 1
2 Normative References 1
3 Terms and Definitions 1
4 Abbreviations 3
5 Basic Requirements 3
5.1 Test Conditions 3
5.2 Video Test Signals 3
5.3 Standard Working State Adjustment 4
5.4 Test Equipment 4
6 Test Methods 4
6.1 Audio/Video Input Interface 4
6.2 Upgrade Function 5
6.3 Audio Output 5
6.4 Remote Control 5
6.5 Remote Control Pairing 5
6.6 Control Panel 6
6.7 Language Selection 6
6.8 Address Setting 6
6.9 Projection Direction Setting 6
6.10 Network Connection 7
6.11 Wireless Hotspot 7
6.12 Multimedia Support 7
6.13 Picture Customization 8
6.14 Screenshot 8
6.15 Startup Wizard 8
6.16 Power-on Startup 8
6.17 Default Signal Channel Setting 9
6.18 Menu Position Adjustment 9
6.19 Menu Rotation 9
6.20 Menu Transparency 10
6.21 Button Lock 10
6.22 Signal Source Auto Search 10
6.23 Focus 10
6.24 Image Mode 11
6.25 Sharpness Adjustment 11
6.26 Color Adjustment 11
6.27 Splicing and Blending 12
6.28 3D Function 12
6.29 Built-in Test Pattern 12
6.30 Aspect Ratio Selection 12
6.31 Local Zoom 13
6.32 Auto Keystone Correction 13
6.33 Image Geometric Correction 13
6.34 Signal Source Switching 14
6.35 Total Cumulative Operating Time 14
6.36 Auto Picture Flip 14
6.37 Contrast Adjustment 15
6.38 Brightness Adjustment 15
6.39 Color Temperature Adjustment 15
6.40 Auto Standby 16
6.41 Custom Device Name 16
6.42 Multi-screen Interaction 16
6.43 Sound Return 16
6.44 Preview Window 17
6.45 Sound Output 17
6.46 Volume Adjustment 17
6.47 Mute 18
6.48 High Altitude Adaptation 18
6.49 Eye Protection 18
6.50 Factory Reset 18
6.51 Add Application Function 19
6.52 Overheat Protection 19
6.53 System Control (Splicing Display Unit) 19
6.54 Software Version Information Display 19
6.55 Remote Control 20
6.56 Sound Effects Mode 20
6.57 Chinese Menu 20
6.58 Bluetooth Function 21
6.59 Lens Shift 21
6.60 Intelligent Voice 21
6.61 Intelligent Operating System 21
6.62 Online Video 21
6.63 Built-in Teaching Software 22
6.64 Electronic Whiteboard Support 22
6.65 Lens Auto Centering 22
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