21DVD-3930/3930CI(3) Setting the modeWith the mode selected, press the PLAY button to set that mode.In the FL tube lighting mode, the FL tube display turns all on and all off. (When "T0" is displayed, the display switches betweenall on, all off and "T0" repeatedly each time the PLAY button is pressed.)( : Off)In the tray open/close mode, tray opening and closing is executed and the number of times the tray has opened and closed isdisplayed.( : Off, n : No. times [DEC])In the laser on/off (CD/DVD) mode, laser on/off control is executed. Press the SKIP REV or SKIP FWD button to display the lasercurrent (T21, T22, T21..).For the CD laser( : Off, CD laser, Stored data: mm.mm [mA], Current value: nn.nn [mA])For the DVD laser( : Off, DVD laser, Stored data: mm.mm [mA], Current value: nn.nn [mA])In the servo adjustment value display mode(XXX : Selection mode, n : Adjustment value (HEX))In the servo properties measurement mode(Y : 1:Focus, 2:Tracking)In the trace mode (error rate display), select the trace of the innermost circumference of 1 layer.(F : When address and error rate not set, F is displayed.)