JVC TH-M303 Service Manual page 17

3.3.7 Removing the DVD pickup
(See Figs.12 to 14)
• Prior to performing the following procedures, remove the tray
assemblies and DVD traverse mechanism assembly.
(1) From the topside of the DVD traverse mechanism assem-
bly, solder the short-circuit points i on the DVD pick up.
(See Fig.12)
Caution:
Solder the short-circuit points i on the DVD pickup before
disconnecting the flexible wire extending from the DVD
pickup. If you do not follow this instruction, the DVD pick-
up may be damaged.
(2) Disconnect the flexible wire from the connector on the DVD
pickup. (See Fig.12)
(3) Turn the screw shaft gear in the direction of the arrow 1 to
move the DVD pickup in the direction of the arrow 2. (See
Fig.12)
(4) Remove the screw G attaching the gear holder. (See
Fig.12)
(5) Remove the screw H attaching the SS adj. spring. (See
Fig.12)
(6) Move the DVD pickup in the direction of the arrow and re-
move the screw shaft from the section j on the screw shaft
holder. (See Fig.13)
(7) Remove the section k of the DVD pickup from the guide
shaft. (See Fig.13)
(8) Remove the two screws J attaching the rack arm to the
DVD pickup. (See Fig.14)
(9) Pull the screw shaft from the DVD pickup in the direction of
the arrow. (See Fig.14)
3.3.8 Attaching the DVD pickup
(See Figs.12 to 14)
(1) Attach the screw shaft to the DVD pickup and attach the
rack arm with the screws J. (See Fig.14)
Reference:
After attaching the screw shaft to the DVD pickup, attach
the screw shaft collar to the screw shaft. (See Fig.14)
(2) Attach the section k of the DVD pickup to the guide shaft
first and attach the screw shaft to the section j on the screw
shaft holder. (See Fig.14)
(3) Attach the SS adj. spring and gear holder with the screws
G and H. (See Fig.12)
(4) Turn the screw shaft gear to move the DVD pickup toward
the left. (See Fig.12)
(5) Connect the flexible wire to the connector on the DVD pick-
up. (See Fig.12)
Caution:
Unsolder the solders from the short-circuit points i after con-
necting the flexible wire.
Short circuit points i
DVD traverse
mechanism assembly
Connector
Screw shaft
gear
1
G
Gear holder DVD pickup
Fig.12
DVD pickup
Section k
Screw shaft Screw shaft holder
Fig.13
DVD pickup
Rack arm
J Screw shaft
Fig.14
Flexible wire
2
SS adj. spring
H
Guide shaft
Section j
Screw shaft collar
(No.MB184)1-17