"Service Mode" or "Service Menu" is a hidden menu that most TVs have available to provide some advanced adjustment options. This menu was meant to be used by professionals, and not by end users, so be careful when changing any parameter.
Some common adjustments that you can make in Service Mode are:
- Advanced color calibration
- Geometry adjustments
- Factory reset
- Region change
- ...and more, depending on your TV Model
⚠️ Before changing any value, take photos of the existing values so that you can go back to previous configuration in case you break something.
⚠️ Inappropriate changes can cause malfunction or damage to the equipment.
How to enter Service Mode
Service mode is commonly accessed using a combination of keys presses on the TV remote controller. Different TV brands and models have different key combinations for entering, and also different menu options.
- On many Sony Trinitron PAL TVs, any value change made in the Service Mode will be saved only when displaying 50Hz image.