Panasonic DMR-EZ45VEB Service Manual page 42

DMR-EZ45VEB
Alignment Tape
Test Point of Playback Envelope
LINEARITY ADJUSTMENT
1. After turning off the Auto tracking, playback the alignment Tape and press [VHS CH UP] and [VHS CH DOWN] keys
simultaneously to adjust the tracking to FIX value.
2. Adjust the LINEARITY so that the envelope is flat when moving tracking to (+) and (-) directions.
Alignment Tape
Test Point of Playback Envelope
Main symptoms and Adjustment point
Envelope
VFM8125H3F
TW3001 (or TW4502)
VFM8125H3F
TW3001 (or TW4502)
Post Name
P2 Post
P2 Post
P3 Post
P3 Post
P2 Post P3 Post
42
Adjustment Method
Turn P2 Post counter-clockwise
(Approx. 1/2 revolution)
Turn P2 Post clockwise
(Approx. 1/4 revolution)
Turn P3 Post clockwise
(Approx. 1/2 revolution)
Turn P3 Post counter-clockwise
(Approx. 1/4 revolution)
Turn P2 Post clockwise
(Less than 1 revolution)
Turn P3 Post counter-clockwise
(Less than 1revolution)