Toshiba MV19L3C Service Manual page 27

2-3: RF AGC
1. Receive the VHF HIGH (63dB).
2. Connect the digital voltmeter between the pin 5 of
CP351 and the pin 1 (GND) of CP351.
3. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (02) on the remote control to
select "RF DELAY".
4. Press the VOL. UP/DOWN button on the remote control
until the digital voltmeter is 2.9V.
(TV SECTION)
2-4: CONSTANT VOLTAGE
1. Connect the digital voltmeter to the TP601.
2. Set condition is AV MODE without signal.
3. Using the remote control, set the brightness and contrast
to normal position.
Adjust the VR502 until the digital voltmeter is 135 ± 0.5V.
4.
2-5: CUT OFF
1. Adjust the unit to the following settings.
R BIAS=128, G BIAS=128, B BIAS=128,
BRIGHTNESS=128, CONTRAST=100
2. Place the set with Aging Test for more than 15 minutes.
3. Set condition is AV MODE without signal.
4. Using the remote control, set the brightness and
contrast to normal position.
5. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (01) on the remote control to
select "CUT OFF".
6. Adjust the Screen Volume until a dim raster is obtained.
2-6: WHITE BALANCE
NOTE: Adjust after performing CUT OFF adjustment.
1. Place the set with Aging Test for more than 15 minutes.
2. Receive the color bar pattern.
3. Using the remote control, set the brightness and contrast
to normal position.
4. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (10) on the remote control to
select "R.BIAS".
5. Using the VOL. UP/DOWN button on the remote control,
adjust the R.BIAS.
6. Press the CH. UP/DOWN button on the remote control to
select the "R.DRIVE", "B.DRIVE", "G.BIAS" or "B.BIAS".
7. Using the VOL. UP/DOWN button on the remote control,
adjust the R.DRIVE, B.DRIVE, G.BIAS or B.BIAS.
8. Perform the above adjustments 6 and 7 until the white
color is looked like a white.
2-7: FOCUS
1. Receive the monoscope pattern.
2. Using the remote control, set the brightness and
contrast to normal position.
3. Turn the Focus Volume fully counterclockwise once.
4. Adjust the Focus Volume until picture is distinct.
ELECTRICAL ADJUSTMENTS
2-8: HORIZONTAL PHASE
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 (05) on the remote control to
select "H PHASE".
4. Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on right
and left becomes minimum.
2-9: VERTICAL SHIFT
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 (07) on the remote control to
select "V SHIFT".
4. Press the VOL. UP/DOWN button on the remote control
until the horizontal line becomes fit to the notch of the
shadow mask.
2-10: VERTICAL SIZE
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 "V SIZE".
4. Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on upside
and downside becomes minimum.
2-11: SUB BRIGHTNESS
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 (13) on the remote control to
select "BRIGHTNESS".
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 INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~4.
2-12: SUB CONTRAST
1. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (14) on the remote control to
select "CONTRAST".
2. Press the VOL. UP/DOWN button on the remote
control until the contrast step No. becomes "100"
3. Press the INPUT SELECT button on the remote control
to set to the AV mode.
4. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (14) on the remote control to
select "CONTRAST".
5. Press the VOL. UP/DOWN button on the remote
control until the contrast step No. becomes "100"