Casio Lighted Keyboard LK90STADMC "light turned" Questions

"Check"light wont turn off on "Check"light wont turn off on my Boss Metal Core (ML-2) pedal. From the user's manual: The Check light lights when the effect is on. It ALSO is a battery ...

When I turn on my Kurzweil SP2X piano all the lights flash and then all turn off exceof 3 red lights in the bottom of the LCD screen. I cannot access any of the sounds. I switched power outlets ...

blinking standby light no power I was playing and noticed my standby light started to flash and shortly after the amp died and wont turn back on. Hi, When you turn the amp on, does all the tubes light

Is he tuner supposed to light up green when the string is correctly tuned? Before turning the unit on, press and hold down the calib/batt switch to check the condition of the battery on the battery ...

The DDT light on one channel stays on. The DDT light on one channel stays on,but I can't find a reason why? What can I do? Disconnect the speaker wiring and speaker on the bad channel. Turn the level ...

...powers up but no sound Peavey Forum Tube Amp Troubleshooting 101 Amp turns on no sound tubes wont light up Peavey 6505 Amp turns on no sound power tubes don ...

LIGHTS UP THEN TURNES OFF STRIGHT AWAY Lights up then turnes off stright away It is probablly going into a protect mode. Continued trials MAY cause further damage to the electronics.

...light lights up when the AC adaptor is attached and turned on. Batteries are connected at the same time. The adapter has a problem... likely a poor connection of input power that briefly contacts ...

...light started flickering on my piano and i would get no sound when i would play the keys. I turned it off and when i went to turn it back on the piano made a low sound and the lights dimmed and still ...

My Mackie 1400i thumps when I turn it on Do the protect lights light up when you turn it on? There is a soft start circuit that should delay for about 3 seconds when powering it up, it sounds as if ...