10
Model No: 21HAP1BE
Version 1.0
MENU9 CRT cut-off and white balance and sub-brightness adjustment.
Receive gray and white 2 steps signal.
1. CRT cut off adjustment.
a. Push [P+][P-] key to select “SC”, push [V+][V-] key then automatically vertical scan
will be stopped.
b. Adjust SCREEN control on Flyback transformer to get the darkest single horizontal
line (red, green, or blue, sometimes shows more yellow more purple or more white).
c. Push [V+][V-] key again, vertical scan work repeat.
2. White balance adjustment.
a. Select RD/BD menu.
b. Adjustment RD/BD to get color temperature as x=282, y=292.
3. Sub-brightness adjustment (use stair case signal)
a. Select SB MENU.
b. Adjust SB to get the darkest step being out off.
RF. AGC adjustment
Item
AKPH01 chassis
Measuring
Equipment
SG and digital multi meter
service remote controller
Preparation
Before Adj.
Connect a digital multi meter to AGC point on the chassis
Adjustment procedure
1. Receive the color bar signal that is 87.5% modulation and 60dBu level
2. Press AGC-TOP on service remote controller to select AGC-TOP adjustment, press + or
– key to adjust the voltage of AGC-TOP to 6.2±0.05V that is read on the digital multi
meter.
Vertical height, linearity and Hor. position adjustment
Item
AKPH01 chassis
Measuring
Equipment
SG
service remote controllers
Preparation
Before Adj.
Brightness, contrast and color should be set in standard
MENU8 Geometrical adjustment
.
Receive standard Crosshatch pattern signal for PAL system.
1. Adjust VSLOPE value to the horizontal line just appear from half bottom shadow.
2. Adjust VSHIFT value the center horizontal line correspond to CRT vertical center.
3. Adjust Vamp value to get 90% of vertical picture contents would be displayed on CRT.
4. Adjust HSHIFT value to get the picture horizontal center correspond to CRT horizontal
center.
5. Receive standard Crosshatch pattern signal for NTSC system, and again adjust.
