ELECTRICAL ADJUSTMENTS
2-6: VIF VCO2-11: OSD HORIZONTAL
1. Place the set with Aging Test for more than 10 minutes.1.Activate the adjustment mode display of Fig. 1-1.
2. Receive the monoscope pattern.2.Press the VOL. UP/DOWN button on the remote
3. Connect the digital voltmeter between the pin 5 ofcontrol until the difference of A and B becomes
CP601 and the GND .minimum. (Refer to Fig. 2-1)
4. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (03) on the remote control to
select "V.VCO".TV
5. Press the VOL. UP/DOWN button on the remote control
until the digital voltmeter is 2.5V.
2-7: HORIZONTAL PHASE
1.Receive the monoscope pattern.
2.Using the remote control, set the brightness and contrast00 OSD 15
to normal position.
3.Activate the adjustment mode display of Fig. 1-1 andAB
press the channel button (05) on the remote control toFig. 2-1
select "H.PHAS".
4.Press the VOL. UP/DOWN button on the remote control
2-12: BRIGHT CENT
until the SHIFT quantity of the OVER SCAN on right and
left becomes minimum.1.Receive the black pattern*. (RF Input)
2.Using the remote control, set the brightness and
2-8: VERTICAL SHIFTcontrast to normal position.
3.Activate the adjustment mode display of Fig. 1-1 and
1.Receive the monoscope pattern.
2.Using the remote control, set the brightness and contrastpress the channel button (13) on the remote control to
select "BRI.CENT".
to normal position.4.Press the VOL. UP/DOWN button on the remote control
3.Check if the step No. V. SHIFT is "00".until the screen begin to shine.
4.Adjust the VR401 until the horizontal line becomes fit to
the notch of the shadow mask.5.Receive the black 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
2-9: VERTICAL SIZE2~4.
1.Receive the monoscope pattern.*The Black Pattern means the whole black raster signal.
2.Using the remote control, set the brightness andSelect the "RASTER" of the pattern generator, set to
contrast to normal position.
3.Activate the adjustment mode display of Fig. 1-1 andthe OFF position for each R, G and B.
press the channel button (06) on the remote control to2-13: SUB TINT/SUB COLOR
select "V.SIZE".
4.Press the VOL. UP/DOWN button on the remote control1.Receive the color bar pattern. (RF Input)
until the SHIFT quantity of the OVER SCAN on upside and2.Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
downside becomes 10 ? 2%.
5.Receive a broadcast and check if the picture is normal.select "TINT".
3.Connect the oscilloscope to TP024.
2-10: VERTICAL LINEARITY4.Press the VOL. UP/DOWN button on the remote control
until the section "A" becomes as straight line.
NOTE: Adjust after performing adjustments in section 2-9.
After the adjustment of Vertical Linearity, reconfirm(Refer to Fig. 2-2)
5.Press the channel button (19) on the remote control to
the Vertical Position and Vertical Size adjustments.select "COL. CENT".
1. Receive the monoscope pattern.6.Connect the oscilloscope to TP022.
2. Using the remote control, set the brightness and contrast7.Adjust the VOLTS RANGE VARIABLE knob of the
to normal position.oscilloscope until the range between white 100% and
3. Adjust the VR402 until the SHIFT quantity of the OVER0% is set to 4 scales on the screen of the oscilloscope.
SCAN on upside and downside becomes minimum.8.Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 120 ? 10% of the
white level. (Refer to Fig. 2-3)
9.Receive the color bar pattern. (Audio Video Input)
10.Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~8. |
ACEC
