I have 667 more than a year now, I inserted the plug in 220v while the AVR voltage switch was on 110v...(by mistake I forgot to switch to 220)
tried to switch on but it stayed in sleep (standby)
once I realized my mistake I cut off power, checked the protective fuse and it was fine, so I switched the voltage to 220, re-inserted the plug and tried to switch it on but nothing happened, it stays in sleep mode,
so I tried going into self diag so pressed Main zone + tune control+ info and this fixed it, and I could switch it on and it functions normally EXCEPT for the front panel display,
nothing at all is visible (like it is still in standby mode) completely blank despite that the unit is working fine with OSD visible on the TV and sounds in speakers.
did I fry the front panel display? or there are some steps I can do to re-enable the display?