Readjusting The Convergence - Sharp LC-R60HDU Service Manual

LC-R60HDU

READJUSTING THE CONVERGENCE

» Choose a dust-free workshop to readjust the convergence.
» Turn on the power with the LCD rubber bushing off.
Keep the projection lens focus intact in its initial condition.
» Feed the crosshatch pattern signal and get the green and other to-be-adjusted color
only displayed.
(1) Loosen the convergence lock screws "d".
(2) Adjust the B-LCD in the X and θZ directions with respect to the screen center of G-LCD.
(3) Now tighten up the convergence lock screws "d".
(4) Adjust the R-LCD in the X and θZ directions with respect to the screen center of G-LCD.
(5) Finally tighten up the convergence lock screws "d".
Note: An eccentric cam is used for adjusting the convergence (X direction). This means that the turning direction
and the linear movement are not consistent.
Top view
(Use an eccentric driver.)
Front
Lock screw c
B-LCD
Lock screws "b"
Lock screw "c"
Groove/hole "c"
(Use an eccentric driver.)
θY
Z
X
(Use an eccentric driver.)
Side view (inner)
Adjusting plate
Groove/hole "c"
Z
Groove/hole "b"
θY
Lock plate
LCD
Groove/hole "c"
Lock screws "a"
(Use an eccentric driver.)
R-LCD
Groove/hole "c"
(Use an eccentric driver.)
G-LCD
X
Groove/hole "a"
(Use an eccentric driver.)
Lock screws "d"
(convergence adjustment)
LCD mounting screws
20
Adjusting screw (Use a hex wrench.)
(θZ direction)
Eccentric cam
(Use an eccentric cam adjusting wrench.)
(X direction)
Adjusting screw (Use a hex wrench.)
(θZ direction)