Then turn on the power supply is 50mA current for a second and then back to zero, the test of normal 13MHz, C157, C159 voltage is normal, when measured by C154 at boot. But each boot to use in C154 pen point, install screen button found "3, 9, #" invalid, see drawing know Row4 line to the V360 -- R374 to the power button is not sustain voltage, measured out "3, 6, 9, #", but "6" resistance of normal, fly line 3-6-9-#, all the normal boot.aKeservice manual download site