JVC TM-H150CG/E Service Manual page 35

Measuring
Item
instrument
V. POSITION Signal
generator
V. LINEARITY / Signal
V. S-CORRECTION generator
Top extension
Vertical extension
Test points Adjustment part
[DEFLECTION BLOCK]
D03 : V. POSITION
[DEFLECTION BLOCK]
D04 : V.SIZE
D05 : V.LIN
D06 : V. S-COR
Correct adjustment
<V. LINEARITY>
Correct adjustment
<V. S-CORRECTION>
Adjustment procedure
(1) Input the PAL circle pattern signal.
(2) Adjust < D03 >(V. POSITION) to agree with CRT
center and signal center of vertical direction.
(1) Input the PAL circle pattern signal.
(2) Confirm < D04 >(V. SIZE) about 100% for linearity
adjustment.
(3) Adjust < D05 >(V. LIN) to become correctly about
vertical size and vertical linearity.
(4) Adjust < D06 >(V. S-COR) that circle pattern
becomes the true circle at top and bottom of the
screen.
Bottom extension
Horizontal extension
(No.YA068)1-35