Changing Pick Base; Optical Pickup; Pick Base - Denon LA-3500 Service Manual

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LA-3500 . . .
7 Changing Pick Base [Exploded View (4)]
• Optical Pickup
After changing the Optical Pickup, be sure to adjust servo circuit.
The Optical Pickup is fragile : Use enough care to handle it. Never
touch Focus Lens, Tilt Sensor and photo detector with a finger.
Disassembly
CD
Pick Base
1. Remove flexible P.W.B. FP 25011.
2. Slowly
move
the Pick Base so that set screw of belt clamper
appears in the hole of traverse, and remove a belt clamper
screw.
Pick Base
Slowly move Pick Base so
that Belt Clamper appears
in the hole of Traverse.
Traverse Motor
[Traverse Right Side]
0
Figure 1
3. Remove a shaft holder screw, hold pick base, pull Pick
Base up clearing Guide Shaft (A).
Caution: Use care, do not lose Belt
Clamper.
Pull upward
Shaft Holder
~
Screw
(Caution)
Do not remove the Shaft
Holder (B) adjustment
screw of Switch Base (1 ).
Figure 2
@
Optical Pickup
1.
G)
Remove Flexible P.W.B. from FP25011. Use care, do
not damage the Flexible P.W.B ..
2.
®
Unsolder height base. (To change the Flexible P.W.B.,
unsolder Tilt Base
@
also.)
3. Remove 3 screws (a) .
4. Disconnect Optical Pickup.
5. Remove Height Base@ (Refer to "Height base change") .
6. Remove height wire springs (A)@ , (B)@) of height base,
(Optical Pickup Shaft (E) side) and tilt pull spring@
(Optical Pickup side) .
7. Remove height link plate@ and slowly pull Optical Pickup
upward.
Caution: One end of Optical Pickup Shaft (F) has a washer
@ .
Be sure to use the washer when changing the
Optical Pickup.
Spare Optical Pickup does not have the Washer.
31