Read Sharp AR-M620 (serv.man27) Service Manual online
AR-M550/M620 INSTALLATION MANUAL (AR-PN4) 5 - 4
2) Open the front cabinet, and open the power cover.
3) Turn ON the main power switch, close the power cover, and close
the front cabinet.
4) Turn ON the power switch on the right side of the main unit.
Click on the first or last page to see other AR-M620 (serv.man27) service manuals if exist.