JVC HV-53PRO/K Service Manual page 26

HV-53PRO
■ DEFLECTION & CONVERGENCE ADJUSTMENT
DEFLECTION ADJUSTMENT
There are 2 frequency modes (① ① ① ① 100Hz i , ② ② ② ② 60Hz p) of the adjustment, depending upon the kind of signals (V. freq. 100Hz i
/ 60Hz p).
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 100Hz REGULAR mode should be done, then the data for the other ZOOM mode is corrected in the
respective value at the same time.
And confirm the deflection adjustment initial setting value in 60Hz (NTSC EXT mode) REGULAR mode.
If the adjustment in 100Hz REGULAR mode has been done and stored, the data for the other ZOOM modes is corrected in the
same value at the same time.
Only the data for the other ZOOM mode in 60Hz is corrected for it self.
FLOWCHART OF ADJUSTMENT
All adjustments of the DEF circuit for this model should be carried out under the status without convergence operation.
To enter the status without convergence operation turn the power on while pressing the service switch S801 on the
convergence PWB. As a result, you can get the screen as shown in Fig.1. Adjust the DEF circuit in order of the steps indicated
by the downward arrows.
Note: When every adjustment of the DEF circuit has completed, start the adjustment of convergence.
Preparation
DEFLECTION
26
Fig.1
H-CENTER
adjustment
V-SHIFT
adjustment
V-SIZE
adjustment
SIDE-PIN
adjustment
TRAPEZIUM
adjustment
CAUTION
SCREEN
TILT
No. 51984
CORNER
adjustment
ANGLE
adjustment
BOW
adjustment
CONVERGENCE
CONVERGENCE
PHASE
OVERALL
CONVERGENCE