Sharp CD-MPX870, Service Manual

Page: 46 / 112

CD-MPX870
3 – 5
2. CD MECHANISM SECTION
Perform steps 1, 2, 9, 10, 11 and 12 of the disassem-
bly method to remove the CD mechanism.
2.1. Remove the pickup. (See Fig. 1)
1. Remove the stop washer (A1) x 1 pc., to remove the
gear (A2) x 1 pc.
2. Remove the screws (A3) x 2 pcs., to remove the
shaft (A4) x 1 pc.
3. Remove the pickup.
Note
After removing the connector for the optical pickup
from the connector wrap the conductive aluminium foil
around the front end of connector so as to protect the
optical pickup from electrostatic damage.
Figure 1
3. CHANGER MECHANISM SECTION
Perform steps 1, 2, 9 and 10 of the disassembly
method to remove the CD changer mechanism.
3.1. How to remove CD Disc (See Fig. 2~5)
1. When CD is at play position (Figure 2), rotate reduc-
tion gear C clock-wise as shown in Figure 3 Until
disc tray is at stock position, then rotate further to
eject the disc tray so that CD can be removed from
the tray.
Figure 2
Figure 3
2. In another case, if CD mechanism is at tray No.1
play position and to remove CD located in tray No.3,
the procedure is as follows:
If the gear up down board is located at tray No.1
position, then rotate gear clock-wise until it at stock
position. Rotate reduction gear D clockwise (Figure
4) to move the CD mechanism to tray No.3 posi-
tion.This is confirmed by checking the gear up down
board position by the marking as indicated on the
main chassis as shown in Figure 5.
Figure 4
Figure 5
Pickup Unit
(A3)x2
φ
2.6x6mm
CD Mechanism
Shaft
(A4)x1
Gear
(A2)x1
Stop Washer
(A1)x1
CD at play position.
CD Disc
Disc Tray
Guide Tray
CD Disc
CD at stalk position.
Reduction gear C
Front Rear
Reduction gear D
Up Down
Mark 1
(DISC 1)
(DISC 2)
(DISC 3)
(DISC 4)
(DISC 5)
Mark 3
Mark 5
Mark 2
Mark 4
Gear up down board