Electrical adjustments – Pacific Digital PTV3606 User Manual
Page 15
Receive the monoscope pattern.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (08) on the remote control to
select "H POSI(50)".
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on right
and left becomes minimum.
Receive the monoscope pattern of NTSC.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (39) on the remote control to
select "H POSI(60)".
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: HORIZONTAL POSITION
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8.
ELECTRICAL ADJUSTMENTS
D-2
Place the set with Aging Test for more than 15 minutes.
Receive the monoscope pattern. (RF Input)
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select "BRIGHT CENT".
Press the VOL. UP/DOWN button on the remote control
until the white 25% is starting to be visible.
Receive the monoscope pattern. (Audio Video Input)
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 3~5.
2-9: BRIGHT CENT
1.
2.
3.
4.
5.
6.
7.
Place the set with Aging Test for more than 15 minutes.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
select "CONT CENT".
Press the VOL. UP/DOWN button on the remote control
until the contrast step No. becomes "30".
Press the AV button on the remote control to set the AV
mode. Then perform the above adjustments 1, 2.
2-10: CONT CENT
1.
2.
3.
4.
5.
Receive the color bar pattern. (RF Input)
Connect the oscilloscope to TP023.
Using the remote control, set the brightness, contrast
and color to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (25) on the remote control to
select "COLOR CENT".
Adjust the VOLTS RANGE VARIABLE knob of the
oscilloscope until the range between white 100% and
0% is set to 5 scales on the screen of the oscilloscope.
Press the VOL. UP/DOWN button on the remote
control until the red color level is adjusted to 85
±
10%
for the white level. (Refer to Fig. 2-2)
Receive the color bar pattern. (Audio Video Input)
Press the AV button on the remote control to set the AV
mode. Then perform the above adjustments 2~6.
2-11: COLOR CENT
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7.
8.
2-8: VERTICAL SIZE
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8.
Receive the monoscope pattern.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (11) on the remote control to
select "V SIZE(50)".
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on upside
and downside becomes 8
±
3%.
Receive the monoscope pattern of NTSC.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (12) on the remote control to
select "V SIZE(60)".
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on upside
and downside becomes 8
±
3%.
2-12: VCO COASE/VCO FINE
100%
85%
Fig. 2-2
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2.
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4.
5.
Connect the oscillator (39.5MHz) to between the TP003
and the (GND) of TU001.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (13) on the remote control to
select "VCO COASE".
Press the VOL. UP/DOWN button on the remote control
until the "+" appear on the screen.
Press the CH UP button once to set to "VCO FINE"
mode.
Press the VOL. UP/DOWN button on the remote control
to select the 4 step down point from the upper limit on
the "+".
(Example: In case of the "+" point 30~41, select 37.)
Receive the monoscope pattern.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (09) on the remote control to
select "V POSI(50)".
Check if the step No. V. POSI is "08".
Adjust the VR401 until the horizontal line becomes fit
to notch of the shadow mask.
2-13: VERTICAL POSITION
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