JVC AV-56WP30 Service Manual page 35

CONVERGENCE & DEFLECTION ADJUSTMENT
"
The adjustment using the remote control unit is made on the basis of the initial setting values.
" The setting values which adjust the scr een to the optimum condition can be different from the initial setting values.
"
At first the adjustment in FULL mode should be done, then the data for the other ASPECT mode is corrected in the respective
value at the same time.
FLOWCHART OF ADJUSTMENT
All adjustments of the DEFLECTION circuit for this model should be carried out under the status without c onvergence operation.
To enter the status without convergence operation turn the power on while pressing the s ervic e switch S801 on the CONVERGENCE PWB.
As a result, you c an get the screen as shown in Fig.1. Adjust the DEFLECTION circuit in order of the s teps indic ated by the downward
arrows.
No te: When every adju stment of the DEFLECTION circuit has completed, star t the adjustment of convergence.
Adjustment
location
sequence
Overall position & size
Center
Center perimeter
(If center deviated, readjust)
Perimeter
(If center deviated, readjust)
Center (Final adjust)
※ R and B o nly
Crosshatch Completed
(F rom a collection of squares)
CAUTION
PREPARATION
Without
convergence
operation
SCREEN
TILT
RASTER
CENTERING
&
H.POSITION
/ SIZE
(coarse)
DEFLECTION
V.PISITION
/ SIZE
/ LINEARITY
H.POSITION
No. 52007
AV-56WP30
H.SIZ E
SIDE PIN
TRAPEZIUM
CO NVERGENCE
CONVERGENCE
PHASE
OVERALL
CONVERGENCE
35