TOSHIBA 20AF45
Manual de Servicio

ELECTRICAL ADJUSTMENTS
2-12: OSD POSITION 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. 2-2) 120% TV white 100% 2-15: TINT 00 OSD A 2-13: BRIGHT CENT 1. Receive the monoscope pattern. (RF Input) 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "BRI CENT". 4. Press the VOL. UP/DOWN button on the remote control until the white 10% is starting to be visible. 5. Receive the monoscope pattern. (Audio Video Input) 6. Press the TV/VIDEO button on the remote control to set to the AV mode. Then perform the above adjustments 2~4. 7. Press the TV/VIDEO button on the remote control to set to the CS mode. 8. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "BRI CENT". 9. Press the VOL. UP/DOWN button on the remote control until the brightness step No. becomes "80". 2-14: COLOR CENT 1. Receive the color bar pattern. (RF Input) 2. Using the remote control, set the brightness, contrast, color and tint to normal position. 3. Connect the oscilloscope to TP022. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (22) on the remote control to select "COLOR CENT". 5. Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope. 6. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 120 ± 5% of the white level. (Refer to Fig. 2-3) 7. Receive the video color bar pattern. (Audio Video Input) 8. Place the set in AV mode. Then perform the above adjustments 2~6. 9. Press the TV/VIDEO button on the remote control to set to the CS mode. Then perform the above adjustments 2~4. 10.Press the VOL. UP/DOWN button on the remote control until the color step No. becomes "66". D-3 29 B Fig. 2-2 1. Receive the color bar pattern. (RF Input) 2. Using the remote control, set the brightness, contrast, color and tint to normal position. 3. Connect the oscilloscope to TP024. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (24) on the remote control to select "TINT". 5. Press the VOL. UP/DOWN button on the remote control until the section "A" becomes as straight line. (Refer to Fig. 2-4) 6. Receive the video color bar pattern. (Audio Video Input) 7. Place the set in AV mode. Then perform the above adjustments 2~5. 8. Press the TV/VIDEO button on the remote control to set to the CS mode. Then perform the above adjustments 2~4. 9. Press the VOL. UP/DOWN button on the remote control until the tint step No. becomes "52". Fig. 2-3

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Fig. 2-4

20AF45/20AF45C