Panasonic NV-HV61GN, Service Manual

Page: 132 / 159

27
Aim for P2, P3 Posts Adjustment
Fig.M8
5-2-(2). ADJUSTMENT OF P4 POST
(1) Install A/C Head on the Mechanism Chassis by one
screw.
(2) Playback the Alignment Tape.
(3) Rotate the screw (A) or (B) until the wrinkle appears on
the lower edge of tape at P4 Post.
(4) Rotate the screw (A) or (B) until the wrinkle just
disappears on the lower edge of tape at P4 Post.
(5) Connect the oscilloscope to audio output terminal.
(6) Rotate the screw (C) until audio signal is maximized.
NOTE:
1. The relation between the rotation direction of screws (A)
and (B) and the condition of wrinkle on the lower edge at
P4 Post as shown in Fig.M9.
2. Make sure that there is not the inclined wrinkle between
P4 Post and Pinch Roller.
Fig.M9
P2 Post
P2 Post
P3 Post
P3 Post
P2/P3 Posts
Envelope
Post Name Adjustment Method
Turn P2 Post counter-clockwise
(Approx. 1/2 revolutions)
Turn P2 Post clockwise
(Approx. 1/4 revolitions)
Turn P3 Post clockwise
Turn P3 Post counter-clockwise
(Approx. 1/2 revolutions)
(Approx. 1/4 revolutions)
Turn P2 Post clockwise
(Less than 1 revolution)
Turn P3 Post counter-clockwise
(Less than 1 revolution)