JVC TM-H1700G/E Service Manual page 32

TM-H1700G
Item Test equipment
V. Center Signal generator
Adjustment (Circle pattern)
Only for PAL
signal
adjustment
V. Lin Signal generator
(Circle pattern)
Adjustment
Only for PAL
signal
adjustment
Top extension
Vertical extension
32
Adjustment
Test points
locations
D03 (V. CENTER)
[SERVICE MENU]
D04 (V. SIZE)
D05 (V. LIN)
D06 (V. S. COR)
[SERVICE MENU]
Correct adjustment
Correct adjustment
No. 51922
Adjustment procedure
9. Input the PAL circle pattern signal.
10. Adjust D03 to agree with CRT center and signal
center of vertical direction.
11. Input the PAL circle pattern signal.
12. Select the D04 to adjust the vertical size become
100%.
13. Select the D05 and reference to the below figure,
adjust it to become correctly about vertical size and
vertical linearity.
Bottom extension
Horizontal extension
14. Select D06 and adjust it to the circle pattern
becomes the true circle at top and bottom of the
screen.