JVC TM-H1950CG - Page 36

No. 51961
TM-H1950CG
36
[Adjustm ent using the 60Hz signal input]
Item Test equipment Test points
Ad ju st men t
locations
Ad justment procedure
4:3
Hor izo nt a l
ce nter
Hor izo nt a l
siz e
Side
pincushion
Ad ju st men t
Signal generator DA01
(
H. CENTER
)
DA02 (H. SIZE)
DA07
(E-W PAR ABO LA)
DA08
(E-W CORNER)
[SERVICE MENU]
36 . Switch the asp ect ratio t o t he 4: 3 mode.
37. Input the 60Hz NTSC crossh atch signal.
38 . Ad just DA01 to align the picture cent er with t he
CRT cent er .
39. Adjust DA02 to s et horizont al size to 95% .
40 . Rep eat ab ove ste p 3 8 and 39 to adjust c orrec tly.
41 . Conf irm t he sid e pinc ushio n of the f our corners in
th e scre en. I f not op tim um, ad just DA 07 an d DA 08
to bec om e c orrec tly.
4:3
Ve rti cal
ce nter
Ve rti cal
linearity
Ad ju st men t
Signal generator DA03
(
V. CENTER
)
DA04 (V. SIZE)
DA05 (V. LIN)
DA06 (V. S. COR)
[SERVICE MENU]
42 . Input the circ le p att ern sign al.
43 . Adjust DA 03 t o a gree with CRT cent er and signa l
center of vertical direction.
44. Adjust DA04 to s et th e vertical size is 100%.
45 . Ad ju st DA 05 t o t he ve rtical line arit y b ecome
correctly.
46. Adjust DA06 to the circle patt ern becomes true
circle at t he top a nd bo tto m of t he scr een.
47. Adjust the DA04 to set the vertical size is 95%.
16 :9
Ve rti cal
ce nter
Ve rti cal
linearity
Ad ju st men t
Signal generator DC04 (V. SIZ E)
DC 0 7
(E-W PAR ABO LA)
DC 0 8
(E-W CORNER)
[SERVICE MENU]
48. Set the aspect rat io to 16:9.
49 . Adjust t he vertic al size by DC04 .
50 . Conf irm t he sid e pinc ushio n of the f our corners in
th e scre en. I f not optim um, adjust DC0 7 a nd DC0 8
to bec om e c orrec tly.
4:3
Under scan
Hor izo nt a l
ce nter
Hor izo nt a l
siz e
Side
pincushion
Ad ju st men t
Signal generator DE01
(
H. CENTER
)
DE 02 ( H. SIZ E)
DE 07
(E-W PAR ABO LA)
DE 08
(E-W CORNER)
[SERVICE MENU]
51 . Switch the asp ect ratio t o t he 4: 3 mode.
52 . Se t th e scre en t o t he under sc an mode .
53 . Ad just DE01 to align the picture cent er with t he
CRT cent er .
54. Adjust DE02 to s et horizont al size to 95% .
55 . Conf irm t he sid e pinc ushio n of the f our corners in
th e scre en. I f not op tim um, ad just DE 07 an d DE 08
to bec om e c orrec tly.
16 :9
Under scan
Side
pincushion
Ad ju st men t
Signal generator DG07
(E-W PAR ABO LA)
DG 08
(E-W CORNER)
[SERVICE MENU]
56. Set the aspect rat io to 16:9.
57 . Se t th e scre en t o t he under sc an mode .
58 . Conf irm t he sid e pinc ushio n of the f our corners in
th e scre en. If not op tim um, adju st DG0 7 an d DG0 8
to bec om e c orrec tly.