JVC AV-56WP74 Service Manual page 48

AV-48WP74
AV-56WP74
3.8.4 DEFLECTION & CONVERGENCE ADJUSTMENT
• The adjustment using the remote control unit is made on the basis of the initial setting values.
• The setting values which adjust the screen 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.
3.8.4.1 FLOWCHART OF ADJUSTMENT
CAUTION:
All adjustments of the DEFLECTION circuit for this model should be carried out under the status without convergence operation.
To enter the mode without convergence operation, select 1.PICTURE/SOUND and change the data in the setting item F62 from 0
to 1. (For details, please refer to the adjustment of DEFLECTION.)
As a result, you can get the screen as shown in bellow figure. Adjust the DEFLECTION circuit in order of the steps indicated by the
downward arrows.
NOTE: When every adjustment of the DEFLECTION circuit has completed, start 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 only
Crosshatch Completed
(From a collection of squares)
1-48 (No.52105)
PREPARATION
Without
convergence
operation
SCREEN TILT
PASTER
CENTERING
& H.POSITION /SIZE
(coarse)
DEFLECTION
V.POSITION / SIZE /
LINEARITY
H.POSITION
H.SIZE
SIDE PIN
TRAPEZIU
CONVERGENCE
CONVERGENCE
PHASE
OVERALL
CONVERGENCE