ELECTRICAL ADJUSTMENTS
2-3: RF AGC
1.
2.
3.
4.
Receive a 70dB monoscope pattern.
Connect the digital voltmeter between the pin 5 of
CP602 and the pin 1 (GND) of CP602.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (02) on the remote control to
select "RF DELAY".
Press the VOL. UP/DOWN button on the remote control
until the digital voltmeter is 2.45
±
0.05V.
(TV SECTION)
2-4: CONSTANT VOLTAGE
2-8: HORIZONTAL PHASE
1.
2.
3.
Receive the center cross signal from the Pattern
Generator.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (05) on the remote control to
select "H PHASE".
Press the VOL. UP/DOWN button on the remote
control until the right and left screen size of the vertical
line becomes the same.
2-9: VERTICAL SHIFT
1.
2.
3.
Receive the center cross signal from the Pattern
Generator.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (07) on the remote control to
select "V SHIFT".
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.
2.
3.
4.
Receive the cross hatch signal from the Pattern
Generator.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (06) on the remote control to
select "V SIZE".
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.
2-11: SUB BRIGHTNESS
1.
2.
3.
4.
5.
6.
Input DC12V to DC Jack and turn the Power ON.
Connect the digital voltmeter to the TP401.
Set condition is AV MODE without signal.
Adjust the VR501 until the DC voltage is 134
±
0.5V.
Input AC120V to AC cord and remove the DC Jack
cord. Check if the Power is ON before doing the above
procedure.
Adjust the VR502 until the DC voltage is 135
±
0.5V.
1.
2.
3.
4.
5.
Adjust the unit to the following settings.
R CUT OFF=128, G CUT OFF=128, B CUT OFF=128,
R DRIVE=64, B DRIVE=64, BRIGHTNESS=128,
CONTRAST=96
Place the set with Aging Test for more than 15 minutes.
Set condition is AV MODE without signal.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (01) on the remote control to
select "CUT OFF".
Adjust the Screen Volume until a dim raster is obtained.
2-5: CUT OFF
2-6: WHITE BALANCE
NOTE: 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 contrast
to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (10) on the remote control to
select "R CUT OFF".
Using the VOL. UP/DOWN button on the remote control,
adjust the R CUT OFF.
Press the CH. UP/DOWN button on the remote control to
select the "R DRIVE", "B DRIVE", "G CUT OFF" or "B
CUT OFF".
Using the VOL. UP/DOWN button on the remote control,
adjust the R DRIVE, B DRIVE, G CUT OFF or B CUT
OFF.
Perform the above adjustments 6 and 7 until the white
color is looked like a white.
2-7: FOCUS
1.
2.
3.
Receive the monoscope pattern.
Turn the Focus Volume fully counterclockwise once.
Adjust the Focus Volume until picture is distinct.
1.
2.
3.
4.
5.
6.
7.
8.
9.
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 (13) on the remote control to
select "BRIGHTNESS".
Press the VOL. UP/DOWN button on the remote
control until the white 10% is starting to be visible
Receive the monoscope pattern. (Audio Video Input)
Press the TV GAME button on the remote control to set
to the AV mode.
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 (13) on the remote control to
select "BRIGHTNESS".
Press the VOL. UP/DOWN button on the remote
control until the white 5% is starting to be visible
2-12: SUB TINT
1.
2.
3.
4.
5.
6.
Receive the color bar pattern. (RF Input)
Connect the synchro scope to TP803.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "TINT".
Press the VOL. UP/DOWN button on the remote control
until the waveform becomes as shown in Fig. 2-2.
Receive the color bar pattern. (Audio Video Input)
Press the TV GAME button on the remote control to set
to the AV mode. Then perform the above adjustments
2~4.
