Key facts
Start here

Kolin TVB-20 User Manual
This manual covers safety precautions, installation steps, and wiring guidelines for the Kolin TVB-20. It explains how to mount the unit, connect power and signal cables, and secure the device to prevent damage.
The guide also describes the front‑panel controls, viewing‑angle adjustment, function settings, auto‑memory features, and troubleshooting tips. Service contact information is provided for warranty and repair support. This manual is written in Chinese.
All Kolin TVB-20 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How do I replace the remote‑control battery?
Replace the battery with a new one and insert it with the correct polarity as indicated on the remote.
What should I do if the device behaves abnormally?
Unplug the power plug immediately.
