Toshiba MV13K1R Service Manual

Contents

ELECTRICAL ADJUSTMENTS2-3: RF AGC1.2.3.4.Receive a 70dB monoscope pattern.Connect the digital voltmeter between the pin 5 ofCP351 and the pin 1 (GND) of CP351.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (02) on the remote control toselect "RF AGC".Press the VOL. UP/DOWN button on the remote controluntil the digital voltmeter is 2.7 ± 0.05V.(TV SECTION)2-4: CONSTANT VOLTAGE1.2.3.4.Connect the digital voltmeter to the R520.Set condition is AV MODE without signal.Using the remote control, set the brightness and contrastto normal position.Adjust the VR502 until the digital voltmeter is 135 ± 0.5V.2-8: HORIZONTAL PHASE1.2.3.4.Receive the monoscope pattern.Using the remote control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (05) on the remote control toselect "H PHASE".Press the VOL. UP/DOWN button on the remotecontrol until the SHIFT quantity of the OVER SCAN onright and left becomes minimum.1.2.3.4.5.6.Adjust the unit to the following settings.R BIAS=128, G BIAS=128, B BIAS=128,BRIGHTNESS=128, CONTRAST=100Place the set with Aging Test for more than 15 minutes.Set condition is AV MODE without signal.Using the remote control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (01) on the remote control toselect "CUT OFF".Adjust the Screen Volume until a dim raster is obtained.2-5: CUT OFF2-6: WHITE BALANCENOTE: Adjust after performing CUT OFF adjustment.1.2.3.4.5.6.7.8.Place the set with Aging Test for more than 15 minutes.Receive the color bar pattern.Using the remote control, set the brightness and contrastto normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (10) on the remote control toselect "R.BIAS".Using the VOL. UP/DOWN button on the remote control,adjust the R.BIAS.Press the CH. UP/DOWN button on the remote control toselect the "R.DRIVE", "B.DRIVE", "G.BIAS" or "B.BIAS".Using the VOL. UP/DOWN button on the remote control,adjust the R.DRIVE, B.DRIVE, G.BIAS or B.BIAS.Perform the above adjustments 6 and 7 until the whitecolor is looked like a white.2-7: FOCUS1.2.3.4.Receive the monoscope pattern.Using the remote control, set the brightness andcontrast to normal position.Turn the Focus Volume fully counterclockwise once.Adjust the Focus Volume until picture is distinct.2-9: VERTICAL SHIFT1.2.3.4.Receive the monoscope pattern.Using the remote control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (07) on the remote control toselect "V SHIFT".Press the VOL. UP/DOWN button on the remotecontrol until the horizontal line becomes fit to the notchof the shadow mask.2-10: VERTICAL SIZE1.2.3.4.Receive the monoscope pattern.Using the remote control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (06) on the remote control toselect "V SIZE".Press the VOL. UP/DOWN button on the remotecontrol until the SHIFT quantity of the OVER SCAN onupside and downside becomes minimum.2-11: SUB BRIGHTNESS1.2.3.4.5.6.Receive the black pattern*. (RF Input)Using the remote control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (13) on the remote control toselect "BRIGHTNESS".Press the VOL. UP/DOWN button on the remotecontrol to adjust the screen brightness from bright todim. Then set to the completely dim point.Receive the black pattern*. (Audio Video Input)Press the TV GAME button on the remote control to setto the AV mode. Then perform the above adjustments2~4.*2-12: SUB CONTRAST1.2.3.4.5.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (14) on the remote control toselect "CONTRAST".Press the VOL. UP/DOWN button on the remotecontrol until the contrast step No. becomes "85"Press the TV GAME button on the remote control to setto the AV mode.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (14) on the remote control.Press the VOL. UP/DOWN button on the remotecontrol until the contrast step No. becomes "82"The Black Pattern means the whole black raster signal.Select the "RASTER" of the pattern generator, set tothe OFF position for each R, G and B.