Panasonic PV-M2738 Operating, Service Manual

Page: 16 / 151

1-14
slide
Slot
Screw (A)
Drive Rack
Unit
Main Cam Gear
Guide Tab
pull
Spring (A)
Rear Side View
Opener
Piece
Pinch Arm
Unit
Main Cam Gear
Locking
Tabs (A)
Pin of Pinch Arm Unit
Main Cam Gear
Pinch
Roller
Shaft of Capstan
Rotor Unit
Pinch
Arm Unit
Groove
Opener Piece
Pull Up
Pinch Roller is up
against Capstan Rotor
Unit shaft
Method 3
Method 1 Method 2
No
No
Yes
Yes
Main Cam Gear can
be rotated
HOW TO REMOVE A JAMMED TAPE
Manual Method
When a tape jam is encountered, check the tape loading
condition and use the following procedure to remove a tape
jam.
Fig. 5-1
Method -1:
1. While releasing 2 Locking Tabs (A) of Opener Piece, pull
the Opener Piece up as far as you can.
2. Move the pin of Pinch Arm Unit out of the groove of the Main
Cam Gear so that the Pinch Roller is separated from the
shaft of the Capstan Rotor Unit.
Fig. 5-2
3. Remove the tape from the tape path.
4. Rewind the tape into the cassette by rotating the Center
Clutch Unit counterclockwise.
5. Unhook Spring (A) of the Drive Rack Unit.
6. Remove Screw (A).
7. Lift the Drive Rack Unit up so that the slot clears the guide
tab. While pulling the Drive Rack Unit out far enough so that
it clears the Drive Rack Arm, slide the Drive Rack Unit as
indicated by the arrow to remove the cassette tape from the
Cassette Up Ass'y.
8. Check the cause of mechanical trouble and repair.
Fig. 5-3
Method -2:
1. Rotate Main Cam Gear clockwise with needlenose pliers,
etc. so that the Pinch Roller is separated from the shaft of
the Capstan Rotor Unit.
2. Perform Step 3 through Step 8 of Method -1.
Method -3:
1. Perform Step 3 through Step 8 of Method -1.
Note:
After repairing mechanical trouble, make sure that all gear
alignments are correct, especially the Wiper Arm Unit and
Drive Rack Unit of Cassette Up Ass'y. (Refer to "
EJECT
Position confirmation" in Disassembly/Assembly Proce-
dures of Mechanism.)