Lonore,
I hear your good at this. I would apreciate your opinion.
My wife has a 1999 Rx300. The LCD display started blinking out, but she said a good smack on the dash would bring it back. By the time I got to look at it, it was very intermittent. It took the radio with it(and the power antenna), but the hvac stayed on and controllable, but no display. The back lights for all the controls under the LCD also stay on.
It is now "off" permantly.
I have the console dismantled and have checked the connections. They look good. I suspect the most likely culprit is the ribbon cable and/or the pc board control infront of the radio.
What ever powers the LCD also powers the radio. The cd player will power up but won't play because the radio isn't powered. I found one pin on the back of the radio connector that has 12 volts. I've found two pins on the connector going to the LCD/"radio station" button with 12 volts.
I haven't found where radioand LCD get their common power from.
Any help, Please!
Marc