Diagnostics SubmenuThis submenu lets you perform tests on the Control Panel. Normally,you will not use it, unless you suspect a fault in the Control Panel. Notethat the 8150 "sees" when you press menu and crosspoint buttons whilein this menu, just as it does normally.Hold down the Lamp Test softkey to test the lamps and LEDs on theControl Panel for burn-out. As you hold the softkey, the 8150 lights eachlamp and LED in succession so you can identify burnt out ones. Thelabels in the pushknobs let you verify that the 8150 changes values insingle steps. For example, if you turn the pushknob one click, the valuein the label should only increase or decrease by one unit.The display in the center of the menu lets you test other Control Panelfunctions. Press a button and the "Keys" line indicates the switch numberfor the button. Press more than one button (up to four at a time) to verifymore than one button.The "Joy" line is a read-out of the current joystick position. When you letgo of the joystick, the X, Y, and Z values should be 0, which means thatthe joystick has recentered itself. Note that a small amount of "drift" inthe joystick is normal.The "TBar" line lets you test the fader bar’s range. The top of its range is8000, the bottom is 0000. Intermediate settings give correspondingread-outs, in hexadecimal form.KeypadEngineering MenuFigure 5-8 The Diags SubmenuEngineering Menu 8150 Technical Guide5-26 Engineering Setup 9100-0212-04 - May 2000
