Ma-1/Ma-2 Mounted Board Replacement; Optical Device Replacement; Tension Spring Removal - Sony CDU31A Series Service Manual

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4-4 MA·1/MA·2 MOUNTED BOARD
REPLACEMENT
4-4-1 Removal
a.
Remove the bottom plate ass'y. (Refer to 4-2)
b.
O~n
the tray by inserting the clip to opening of front
panel ass'y. (Refer to Fig. 4-3 (a))
c.
Remove the front panel ass'y (No need to remove the
ornamental tray plate). (Refer to 4-3)
d.
Remove two wave screws (PTP2.6x8) securing
MA-l/MA-2 Mounted Board. (Refer to Fig. 4-4 (a))
MA·1/MA·2 Mounted Board
Fig. 4-4 (a) MA-1/MA-2 Mounted Board
Replacement
e.
LA>ck ass'y removal
e-1. While lifting up the MA-l/MA-2 Mounted Board
as shown in Fig. 4-4 (b), disconnect the CN204
connector and take out the lock ass'y from the
drive.
f.
Unlock the CNJlOl connector and disconnect the flat
flexible cable of optical device.
LockAss'y
Fig. 4-4 (b)
4-3
4-4-2 Installation
a.
Insert the flat flexible cable to CNJlOI connector and
lock it with the retainer cover.
b.
Connect the plunger cable to CNJ204 connector and
place the lock ass'y in the drive.
Note:
If the Lock Release Lever and the Lock Lever arc
locked, shift the Lock Lever with clip to unlock the
Lock Ass'y as shown in Fig. 4-4 (c).
c.
Place the MA-l/MA-2 Mounted Board and secure it
with two wave screws (PTP2.6x8) with torque force of
58.8 N •cm (6kgf•cm).
d.
Perfonn the electrical adjustment. (Refer to 5-1)
e.
Install the bottom plate ass 'y. (Refer to 4-2)
Lock Ass'y
Lock Ass'y
Lock Lever
Lock Lever
Lever
Clip
Lock
Unlock
Fig. 4-4 (c)
4-5 OPTICAL DEVICE REPLACEMENT
4-S-l Removal
a.
Remove the bottom plate. (Refer to 4-2)
b.
Remove the front panel ass 'y. (Refer to 4-3)
c.
Remove the MA-l/MA-2 mounted board. (Refer to
4-4)
d.
Remove the end of Tension Springs on both of the
guides. (Refer to Fig. 4-5 (a))
Fig. 4-5 (a) Tension Spring Removal

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