TOSHIBA 14AF41C
Service Manual

ELECTRICAL ADJUSTMENTS
2-7: HORIZONTAL SIZE NOTE: Adjust after performing adjustments in section 2-6. 1. Receive the monoscope pattern. 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 (06) on the remote control to select "H. SIZE". 4. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes 10 ± 2%. 2-8: VERTICAL POSITION NOTE: Adjust after performing adjustments in section 2-7. 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 "V. POSI". 3. Press the VOL. UP/DOWN button on the remote control until the horizontal line becomes fit to the notch of the shadow mask. 2-9: VERTICAL SIZE NOTE: Adjust after performing adjustments in section 2-8. 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. 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. 2-10: PARABOLA 1. Receive the crosshatch signal from the Pattern Generator. 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 (23) on the remote control to select "PARABOLA". 4. Press the VOL. UP/DOWN button on the remote control until the right and left vertical lines are straight. 2-11: TRAPEZIUM 1. Receive the crosshatch signal from the Pattern Generator. 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 (24) on the remote control to select "TRAPEZIU". 4. Press the VOL. UP/DOWN button on the remote control until the both vertical lines of the screen become parallel. 2-15: LEVEL 1. Receive a 70dB monoscope pattern. 2. Connect the AC voltmeter to TP901. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (30) on the remote control to select "LEVEL". 4. Press the VOL. UP/DOWN button on the remote control until the AC voltmeter is 75 ± 2mV. 00 OSD A 15 B Fig. 2-1 2-12: CORNER CORR TOP 1. Receive the crosshatch signal from the Pattern Generator. 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 (25) on the remote control to select "COR TOP". 4. Press the VOL. UP/DOWN button on the remote control until the upper section of the both ends vertical lines are straight. 2-13: CORNER CORR BOTTOM 1. Receive the crosshatch signal from the Pattern Generator. 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 (26) on the remote control to select "COR BTM". 4. Press the VOL. UP/DOWN button on the remote control until the bottom section of the both ends vertical lines are straight. 2-14: 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. 2-1)

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