Aph Board Replacement - Hitachi IJ RX2 Service Manual

5.7 APH board replacement

１ Remove the head base rear cover
２ Remove the APH board
fastening screw.
３ Slide approximately 4 mm.
４ Pull out.
５ Remove the connectors
(2 locations).
６ Remove the APH sensor
 When returning to the original state,
remove the gutter base, fasten the
APH board, and then re-attach the
gutter base (in order to enhance
O-ring assembly reliability of the
APH sensor).
７ Perform the automatic phase gain adjustment
Fastening
Connector
5-10
APH board
Connector
APH sensor
Gutter base
O-ring 2.2