Sony BVW-55 Maintenance Manual page 346

5-1. General Information on Tape Path Adjustment
5. Cassette tape using the tape path adjustment
The tape path adjustment should be performed under the state that the cassette compartment is removed.
Then, it is necessary to make a following modification (1) or (2) to the cassette tape and alignment tape
that are used for the tape path adjustment.
(1) Cassette tape without lid
Cassette lid
Spring
Lock link
Screws
Screws
(1) Cassette tape without lid
Disassemble the cassette tape, and take off the cassette lid, springs and lock links shown in the figure.
(2) Cassette tape with holding lid
Open the cassette lid (2) while pushing the lock knob (1), and fix the cassette lid using an adhe-
sive tape (3).
When putting the cassette tape or alignment tape on the VTR, put it on the cassette posts on the mechani-
cal deck. And then, put a weight on the cassette tape so that it does not rise up. The weight abut 1000 g is
suitable.
6. Cleaning
Clean the following tape running surfaces before performing the tape path adjustment.
. Tape running surface of the upper drum and video heads
. Tape running surfaces of the lower drum and lead
. Stationary heads and tape cleaner
. Tape guides
How to clean these portions, refer to the maintenance manual Part 1, Section 4-2.
5-4
(2) Cassette tape with holding lid
Upper case
Spring
Lock links
1
Lock knob
Cassette lid
2
3
BVW-55 P2