User manual GRUNDIG CUC 2021 SERVICE MANUAL

[. . . ] Disassembly of the chassis Before disconnecting the chassis connecting leads observe the way they are routed to the individual assemblies like the mains switch panel, keyboard control panel, picture tube panel, deflection unit or loudspeaker. On completion of the repairs the leads must be laid out as originally fitted at the factory to avoid later failures or disturbances. Mains cable The TV receiver must only be operated with an original mains connecting cable with an interference suppressor choke integrated in the mains plug. This mains cable prevents interference from the mains supply and is part of the product approval. [. . . ] The analog values for contrast, picture sharpness and tint are stored automatically when leaving the menu. With button " " select the dialog line "MANUAL TUNING" via the "DIALOG CENTER". After this setting only those programme positions can be selected with the or buttons in Programme Mode which are lower than the "00" position. When setting the reversing point to a programme position 10, only single-digit selection of the programmes will be possible. 2 AFC Control The two used programme positions before the reversing point are provided with an AFC control (video recorder via RF). 99 By pressing button " " call up the dialog line "Decoder (P1-99)" via "DIALOG CENTER" ­> "OK" ­> "SERVICE" ­> "OK". 4 Forced Chroma Switching Call up the dialog line "Color" via "DIALOG CENTER" ­> "OK" ­> "SERVICE" ­> "OK" with button " ". Under poor reception conditions it is possible with the or button to force the automatic chroma standard switching function into the chroma standard on a perprogramme basis. 5 Switching off the Blue Screen Background Call up the dialog line "Blue Screen" via "DIALOG CENTER" ­> "OK" ­> "SERVICE" ­> "OK" ­> with button " ". When this function is set to "off" the blue background is switched off (e. 6 Black Screen when Changing the Programme Call up the dialog line "Black Screen" via "DIALOG CENTER" ­> "OK" ­> "SERVICE" ­> "OK" with button " ". When this function is set to "on" the screen is blanked when changing the programme. 7 IDP2 (Dealer Programmer) Call up the dialog line "IDP2 HP" via "DIALOG CENTER" ­> "OK" ­> "SERVICE" ­> "OK" with button " ". The channels to be received can be programmed with the IDP2 Programmer. 8 Display of the Station Name On or Off The station ident is read out from the VT (teletext) or the VPS signal (is not transmitted from all stations). Call up the dialog line "Station name" via "DIALOG CENTER" ­> "OK" ­> "SERVICE" ­> "OK" with button " ". With this function set to "off" it is possible to avoid the station name being displayed on the screen for a short time when changing the programme. Having entered the code number "8500" the dealer can change the following settings following the menu: - GEOMETRIE - WHITE ADJUSTMENT - AGC - OSD horizontal - OSD vertical - Hotel - Tube - Cut-off align - Overscan - NTSC 3. 2 OSD Position Call up the dialog line "OSD" with button " " via "DIALOG CENTER" ­> "OK" ­> "SERVICE" ­> "OK" ­> Service Code "8500". Or button it is possible to shift the on screen display in With the the horizontal or vertical direction and to store this position in dialog line "End" selecting "with mem. 1 Activating the Hotel Mode Call up the dialog line "Hotel" with button " " via "DIALOG CENTER" ­> "OK" ­> "SERVICE" ­> "OK" ­> Service Code "8500". With activated "Hotel Mode": - it is no longer possible to call up the "DIALOG CENTER" menu with button " ". [. . . ] Call up the dialog line "Tube" via " " (DIALOG CENTER) ­> "OK" ­> SERVICE ­> "OK" ­> Service Code "8500". Call up the dialog line "Overscan" via " " (DIALOG CENTER) ­> "OK" ­> SERVICE ­> "OK" ­> Service Code "8500". With button or select "on " for models with NTSC or "off" for models without NTSC. Go back to the "SERVICE" menu with " " and terminate the dialog line "End" "with mem. [. . . ]