Zenith C32V23 - 32" Flat-Screen Integrated HDTV, Service Manual

Page: 34 / 81

PV154 - 923-03497
3-12
AB - SERVICING
SERVICING
Fig 12
Figure 11: This image shows the result of increasing the
register value up to 15. You can notice that top half and
bottom half of picture are shrinking, while center is
expanding.
Figure 12: This image show the result of decreasing the
register value down to 0. You can notice that top half
and bottom half are expanding to the center.
REGISTER # 131 / NAME UP-VLIN
The “UP-VLIN”. This correction affected top half of picture,
shrink or expand it. The register can take values from 0
up to 15. If you decrease the register value down to 0
you’ll see the fig 13. If you increase the register value up
to 15 you’ll see fig. 14.
Fig 13
Fig 14
Figure 13: This image shows the result of decreasing the
register down to 0. You con notice that top half of picture
is fully open and the bottom half remains unaffected by
the correction.
Figure 14: This image shows the result of decreasing the
register value down to 0. You can notice that top half of
picture is shrinking and bottom half of picture remains
unaffected.
REGISTER # 132 / NAME LO-VLIN
“LO-VLIN”. This correction affected bottom top of picture,
shrink or expand it. The register can take values from 0
up to 15. If you decrease the register value down to 0
you’ll see the fig 15. If you increase the register value up
to 15 you’ll see fig. 16.
Fig 15
Fig 16
Fig. 15. This image shows the result of decreasing the
register value down to 0. You can notice that bottom half
of picture is slightly more open than top half, due to the
fact that in this picture the nominal value is 1.
Fig. 16. This image shows the result of increasing the
register value up to 15. You can notice that bottom half
of picture is shrinking, while top half remains unaffected.