JVC TM-H1950CG - Page 33

No. 51961
TM-H1950CG
33
Item Test equipment Test points
Ad ju st men t
locations
Ad justment procedure
4:3
V. Center
Ad ju st men t
Signal generator
(Circle pattern)
D03 (V. CENTER)
[SERVICE MENU]
9. Input the PA L circle p att ern sig na l.
10 . Ad just D03 to ag ree with CRT ce nte r a nd sign al
center of vertical direction.
4:3
V. Lin
Ad ju st men t
Signal generator
(Circle pattern)
D04 (V. S IZE)
D05 (V. LIN)
D06 (V.S. COR)
[SERVICE MENU]
11. Input the PAL circle p att ern signal.
12 . Select t he D04 to ad just the ve rt ic al size bec ome
10 0%.
13 . Se lect t he D0 5 and ref erenc e to t he belo w figu re,
ad just it to bec ome correctly ab ou t vertical size an d
vertical linearity.
14 . Se le ct D06 an d ad just it to th e circle p att ern
b ecomes th e tr ue circ le at top and bo ttom of th e
screen.
Top extension
Correct adjustment
Bo ttom extension
Horizontal extension
Correct adjustment
Ve rti cal ex tension