Panasonic C1381 - Page 19

14.
15.
16.
V-Center Adjustment
(See B-2 of Page 31)
a) Turn R444 (V. CENT.) to center position.
b) Apply a VGA signal with full white pattern to
the unit. And turn R3116 (BRIGHT) and R3115
(CONTRAST) controls fully clockwise.
c) Adjust R4060 (V. CENT. PRE.) to set the vertical
image position to center.
V-Size Adjustment
(See B-3 of Page 31)
a) Apply a VGA signal to the unit.
b) Turn R445 (V. SIZE) control to set click position.
c) Turn R3116 (BRIGHT) fully clockwise.
d) Adjust R408 (SUB. V. SIZE) to set the vertical width
of the image is 7.2 in. (183 mm).
Raster Center Adjustment
(See E-5 of Page 31)
ATTENTION: This adjustment is not necessary for
ordinary servicing.
Do this adjustment, when you find
that the Raster center position is not
in normal position,
a) Apply a VGA signal with full black pattern to the
unit,
b) Turn R3116 (BRIGHT) fully clockwise.
c) Adjust using optional couplers to set the Raster
center position.
CRT
Figure 33
e A-— B= —047 in. ~ — 0.31 in.
(—12mm ~ —8mm)
use coupler PAXAJT6C1391
e A -— B= —0.31 in. ~ — 0.2 in.
(-_8mm ~—5mm)
use coupler PAXAJT7C1391
17.
18.
— 19 —
C1381
e A-— B= —-0.2in. ~—0.08 in.
(~5 mm ~ — 2mm)
use coupler PAXAJT8C1391
e A — B = — 0.08 in. ~ + 0.08 in.
(-_2 mm ~ + 2mm)
no use
e A — B = +0.08 in. ~ + 0.16 in.
(+2mm~+4mm)
use coupler PAXAJT9C1391
H-Center Adjustment
(See B-2 of Page 31)
a) Apply a VGA signal with full white pattern.
b) Turn R3116 (BRIGHT) and R3115 (CONTRAST)
controls fully clockwise,
c) Turn R447 (H. CENT.} to click position.
d) Adjust R5015 (H. CENT. PRE.) to set the horizontal
image position to center.
H- Size Adjustment
(See B-2 of Page 31)
a) Apply a VGA signal with full white pattern.
b) Turn R514 (H. SIZE) control to set click position.
c) Adjust R512 (H. SIZE PRE) to set the horizontal
width of the image is 9.65 in. (245 mm),