Hitachi CP-SX635W Service Manual page 22

CP-SX635(ED3SX40N)
(4) Unscrew PWB assembly MAIN to make it free and disconnect the LCD panel flexible cables.
Flexible cables of LCD panel
Remove these 6 screws
Remove these screws
(5) Press and hold the switch S941 using an insulator during maintenance.
(6) Keep the unscrewed wires away from all of electric parts.
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