Panasonic PT-D3500U

4.3. Functions in Serviceman Mode
4.3.1. EXT OPTION
"EXT OPTION" is added to the MENU.
1. CUT OFF
Sets the display ON/OFF for each color (R, G, B).
2. SELF CHECK
Displays SELF CHECK.
There are 2 pages, and it is switched with
and buttons.
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PT-D3500U / PT-D3500E