Haier HL26R1 Service Manual page 45

Factory Scan: According to ANTENNA-ANALOG---〉ANTENNA-DIGITAL---〉CABLE-
ANALOG---〉CABLE- DIGITAL to search channels, used only in project debugging.
Tuner Diagnostic: Project debugging setting, used to inspect the audio function.
8-2-5Gamma
Gamma:
Bright：GAMMA0.8 Middle：default settings in the program Dark：GAMMA1.2
40