Lock Unit [Dz-Gx20A/Mv780A/Mv730A]; Adjustment Cover , L Case, And Lcd Unit [Dz-Gx20A/Mv780A/Mv730A] - Hitachi DZ-GX20A Service Manual

Disassembly and Reassembly > Disassembly
(21) Lock Unit
[DZ-GX20A/MV780A/MV730A]
1) With the disc insertion block closed, remove the screw [F].
2) Move the lock slider (b) in the direction of the arrow to open the disc insertion block.
3) Remove the four screws [B].
Caution during disassembly and reassembly:
Be sure to close the disc insertion block before tightening the screw on the switch of lock unit (c),
and make sure that the switch is attached as shown in the figure: Screwing the switch with the disc
insertion block open could damage it.
3) [B]
(22) Adjustment Cover, L Case and LCD Unit
1) Insert a fine-tipped flat-bladed screwdriver
(e) into the groove in adjustment cover (a),
and remove the cover from L case (b) in the
direction of the arrow: Be very careful not to
scratch the cover or L case with screwdriver.
2) Remove the two screws [J], taking care not
to lose the LCD ground plate (d), which will
be detached at this time.
Note:
Take great care when handling the LCD unit.
The LCD unit has an LCD panel that is a
precision component: Subjecting it to any
impact could result in a fault.
(c)
3) [B]
1) [F]
(b)
2)
(a)
Fig. 5-3-21
[B] M1.7×2.5
(Block)
[F] M1.7×4 (Block)
(c)
1) [F]
[DZ-GX20A/MV780A/MV730A]
(b)
(d)
(a) Adjustment cover
(b) L case
(c) LCD Unit
(d) LCD ground plate
(e) Flat-bladed screwdriver
5 - 17
(a) Lock unit
(b) Lock slider
(c) Switch of lock unit
3) [B]
Right side
(a)
(e)
2)
[J] M2×5 (Silver)
1) [J]
Fig. 5-3-22
(c)