No, all 12 LED not lit up when power on at the first time and after. Are they supposed light up during normal condition? input selector is set on RCA. power switch is set on position, standby switch is set on operate. I tried to adjust the right channel bias level slowly started from 0 counterclockwise to about half, noticed that all 6 kt88 were lit up for short while and hear low level distortion sound and then all LED is off. I turned off the unit, wait for while before turning back on, nothing happened. LED not lit up no matter how precisely turn the bias level. all 16 tubes lit up though. hope this will get you more understanding its current working condition. thanks for helping.
