ELECTRICAL ADJUSTMENTS
D2-2
(TV SECTION)
2-4: CONSTANT VOLTAGE
1.
2.
3.
4.
Connect the digital voltmeter to TP501.
Set condition is AV MODE without signal.
Using the remote control, set the brightness and contrast
to normal position.
Adjust the VR502 until the digital voltmeter is 135
±
0.5V.
2-5: FOCUS
1.
2.
3.
Receive the monoscope pattern.
Turn the Focus Volume fully counterclockwise once.
Adjust the Focus Volume until picture is distinct.
2-6: HORIZONTAL POSITION
1.
2.
3.
4.
5.
6.
Receive the center cross signal from the Pattern
Generator.
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 right and left screen size of the vertical line
becomes the same.
Receive the cross hatch signal of NTSC. (Audio Video
Input)
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 2~4.
NOTE: Adjust after performing adjustments in section 2-8.
2-9: VERTICAL SIZE
Receive the cross hatch signal from the Pattern
Generator.
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 rectangle on the center of the screen becomes
square.
Receive a broadcast and check if the picture is normal.
Receive the cross hatch signal of NTSC. (Audio Video
Input)
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 2~4.
1.
2.
3.
4.
5.
6.
7.
2-10: OSD HORIZONTAL
1.
2.
3.
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 (31) on the remote control to
select "H POS OSD".
Press the VOL. UP/DOWN button on the remote control
until the difference of A and B becomes minimum.
(Refer to Fig. 2-2)
H POS OSD 35
A
B
Fig. 2-2
( PAL)
TV
2-3: RF AGC
1.
2.
3.
4.
5.
Place the set with Aging Test for more than 15 minutes.
Receive the UHF (63dB).
Connect the digital voltmeter between the pin 5 of
CP603 and the pin 1 (GND) of CP603.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (01) on the remote control to
select "RF AGC".
Press the VOL. UP/DOWN button on the remote control
until the digital voltmeter is 2.4
±
0.1V.
2-7: VERITCAL POSITION
NOTE: Adjust after performing adjustments in section 2-6.
Receive the cross hatch signal from the Pattern
Generator.
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 (50) is "5".
Adjust the VR402 until the horizontal line becomes fit to
notch of the shadow mask.
Receive the cross hatch signal of NTSC. (Audio Video
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 (09) on the remote control to
select "V POSI (60)".
Check if the step No. V.POSI (60) is "15".
1.
2.
3.
4.
5.
6.
7.
8.
9.
2-8: VERTICAL LINEARITY
NOTE: Adjust after performing adjustments in section 2-7.
1.
2.
3.
Receive the cross hatch signal from the Pattern
Generator.
Using the remote control, set the brightness and
contrast to normal position.
Adjust the VR401 until the SHIFT quantity of the OVER
SCAN on upside and downside becomes minimum.
2-11: CUT OFF
1.
2.
3.
4.
5.
Set condition is AV MODE without signal.
Using the remote control, set the brightness and
contrast to normal position.
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 (00) on the remote control to
select "CUT OFF".
Adjust the Screen Volume until a dim raster is obtained.
Содержание SL0014KO
Страница 65: ...M5A5 22N SPEC NO O R NO U1Y5502 ...
