No VL and VH-band search process, internal control data are likely to be memory errors. The CPU is MN152810, single-chip IC AN5195. Entering the State of repair method is as follows: turn off the main power, while pressing the host volume +/volume-button on the Panel, then open the TV set, "ADJUST MENU" characters appear on the screen when the machine entering debug state. Use the volume +/volume-button on the remote control for adjustment under the Debug menu, analysis of adjustment in the menu item, it is safe and fault-free, whether there is a second-level menu? Still out. Finally managed to manufacturer repair purchased directly to write standard data storage, troubleshooting.