HU-D21 Service Mode (Modo de Serviço)

Hyundai

CTV

Service Mode

Go to the function set menu (there are two ways;) Press VOL+ key and VOL- key on the control board at the same time and switch on power switch, then go to the function set menu. After TV is on, press "factory" key (See Note 1) twin,then go to the function set menu. Press 'PM' key and 'SM' key on the control board at the same time until the "INITIAL PART OK " appears, this means the memory having been partially initialized. Operate repeatedly if the picture has no change. All of the TV set EEPROM must be partially initialized before exfactory or after change of the Chroma IC NN5198 / NN5199 or fully EEPROM initialized after change of the EEPROM 24C04(OR 24C08,24C16,Note 4).