Panasonic PV-M1348 Service Manual page 33

Main Cam Gear and Drive Rack Arm
Disassembly Procedure
1. Remove the Main Cam Push Nut. (Refer to Note.)
2. Pull up on the Main Cam Gear.
3. Turn the Drive Rack Arm fully counterclockwise as shown.
4. Pull up on the Drive Rack Arm.
7 Main Cam
Gear
Main Cam Push Nut
Fig. J5-1
Note:
When removing the Main Cam Push Nut, press the Main
Cam Gear to make space between the Main Cam Push Nut
and Bottom of Chassis. Then, remove the Main Cam Push
Nut using a screwdriver etc.
Bottom of Chassis
Press
Fig. J5-2
Reassembly Notes
1. Alignment of Main Cam Gear, Drive Rack Arm, and
Main Lever Drive Arm
1) Confirm that the hole (C) on the Main Lever Drive Arm
is aligned with the hole on chassis (Through hole (C)) as
shown.
2) Install the Drive Rack Arm so that the hole (A) is aligned
with the hole on chassis (Through hole (A)) as shown.
3) Install the Main Cam Gear so that the 2 holes (B)
marked "E" are aligned with the hole on chassis (Through
hole (B)) as shown. ("E" indicates the EJECT position.)
8 Drive Rack
Arm
Turn
See
"Reassembly
Notes."
Shaft of Main Cam Gear
Main Cam Push Nut
Screwdriver
Main Cam Gear
2-10
Chassis Hole
Chassis Hole
E
Main Cam
Gear
Pin
Main Lever
Drive Arm
Through Hole (C)
Fig. J5-3
2 . Holes on Main Cam Gear
1) The holes on Main Cam Gear should be aligned with
the hole on chassis in each mode (Through hole) as
shown.
Chassis Hole
FF/REW mode Hole
Brake mode Hole
PLAY/CUE
/SLOW/STILL
mode Hole
REV mode Hole
Fig. J5-4
3. Installation of Main Cam Gear and Main Cam Push Nut
1) Position the chassis upside down and place a Support
under the Main Cam Gear.
Install the Main Cam Push Nut with Needlenose Pliers
etc. so that it is flush with the chassis.
There may be some slight scratches on the Shaft of
Main Cam Gear, when removing the Main Cam Gear.
In case that the Main Cam Gear can be installed
securely without tottering, it is fine to use the one. If any
tottering, replace a new one.
Chassis Hole
FF/REW mode Hole
Brake mode Hole
PLAY/CUE
/SLOW/STILL
mode Hole
REV mode Hole
Fig. J5-5
4. The Main Cam Push Nut is not reusable. Install a new one.
5. Make sure to hook Spring (A) of the Cassette Up Ass'y to
the Drive Rack Arm. Refer to "Cassette Up Ass'y" in
"Disassembly/Assembly Procedures of Cabinet."
mark
E
Chassis
Through Holes (B)
Pin
Drive Rack Arm
Through Hole (A)
EJECT mode
E Hole
EJECT mode
E Hole