Sony UP-21MD Service Manual page 16

Section 1-4-1.)
5. Disconnect one harness from the connector (CN204)
on the MEC-15 board.
7. Remove the two screws (M 2.5 x 8), then remove the
head assembly.
To switching
regulator
iss To SY-299
~~) board
Ribbon panel assembly
Thermal
Connector
'CN204)
Harness
8. Attach head assembly in the reverse order of steps 1 to
7.
When attaching the head assembly, set the assembly in
the direction indicated by the arrow, then tighten the
two screws.