Observe normal switch storehouse, the screen shows "OOM OOS", every other function failure, can't read. Shutdown the multimeter R servo x 10 file test piece KA9528 (26, 27), laser head coil no action. f4Tservice manual download site
 f4Tservice manual download site
Results from KA9528 (26, 27) feet to the laser corresponding to the foot of circuits are open circuit phenomenon, attachment or board, etc.f4Tservice manual download site