ELECTRICAL ADJUSTMENTS
2-9: OSD HORIZONTAL 1. Activate the adjustment mode display of Fig. 1-1. 2. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3)
TV "A" Fig. 2-1 00 OSD A 2-10: VIF VCO 120% 1. Place the set with Aging Test for more than 10 minutes. 2. Receive an 80dB monoscope pattern. 3. Connect the digital voltmeter between the pin 5 of CP601 and the GND. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "VIF VCO". 5. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V. 2-11: SUB CONTRAST MANUAL 1. Receive a 70dB the color bar pattern. (RF Input) 2. Activate the adjustment mode display of Fig. 1-1 press the channel button (14) on the remote control to select "CONTRAST". 3. Press the VOL. UP/DOWN button on the remote control until the contrast step No. becomes "100". 4. Receive a 70db the color bar pattern. (Audio Video Input) 5. Press the TV/VIDEO button on the remote control to set to the AV mode. Then perform the above adjustments 2~3. 2-12: BRIGHTNESS 1. Activate the adjustment mode display of Fig. 1-1 and press the channel button (13) on the remote control to select "BRIGHTNESS". 2. Press the VOL. UP/DOWN button on the remote control until the brightness step No. becomes "136". 3. Press the TV/VIDEO button on the remote control to set to the AV mode. Then perform the above adjustments 1~2. 4. Press the TV/VIDEO button on the remote control to set to the CS mode. Then perform the above adjustments 1~2. 15 B Fig. 2-3
0%
100% Fig. 2-2 2-6: HORIZONTAL PHASE 1. Receive the center cross signal from the Pattern Generator. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (05) on the remote control to select "H PHASE". 3. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 2-7: VERTICAL SIZE NOTE: Adjust after performing adjustments in section 2-6. 1. Receive the crosshatch signal from the Pattern Generator. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (06) on the remote control to select "V SIZE". 3. Press the VOL. UP/DOWN button on the remote control until the rectangle on the center of the screen becomes square. 4. Receive a broadcast and check if the picture is normal. 2-8: VERTICAL SHIFT NOTE: Adjust after performing adjustments in section 2-7. 1. Receive the crosshatch signal from the Pattern Generator. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V SHIFT". 3. Press the VOL. UP/DOWN button on the remote control until the horizontal line becomes fit to the notch of the shadow mask.
