GRUNDIG LCD TV-schematic-Berlin, Vision-7 and Vision 9- How to enter the service mode, service mode adjustments method [Full circuit diagram]

 

Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.

It makes sense to avoid exposure to electrical shock.  While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.

Calling up the Service Mode
– Press button " i " (Menu: PICTURE).
– Enter the code number "8500".

Functions of the buttons

“i”  > call up the dialog center or exit the service mode.

O [OK]  > call up the menus.

Up of Dn  > call up the dialogue line [point of menu]

+ or -   > call up the menus and chamging the settings.

O (blue)  > leave the submenu.

Exit the Service Mode
– Press button " i ".

Berlin

32-8970 T	GBH5132
37-8970 T	GBH5137
37-9980 T	GBI0837
42-9980 T	GBI0842

Vision 7

37-7965 T	GBH4137
37-7970 T	GBH5037
42-7970 T	GBH5042
47-7970 T	GBH5047
47-7971 T	GBH5247

Vision 9

37-9970 T USB	GBH3737
37-9980 T USB	GBH3837
42-9970 T USB	GBH3742
42-9980 T USB	GBH3842
47-9970 T USB	GBH3747
47-9980 T USB	GBH3847

Schematic Diagram