ELECTRICAL ADJUSTMENTS
D3-3
1.
2.
3.
2-11: SUB CONTRAST
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (14) on the remote control to
select "CONTRAST".
Press the VOL. UP/DOWN button on the remote control
until the contrast step No. becomes "96".
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 1~2.
Receive the color bar pattern. (RF Input)
Connect the oscilloscope to TP801.
Using the remote control, set the brightness, contranst,
color and tint to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (15) on the remote control to
select "COLOR".
Adjust the VOLTS RANGE VARIABLE knob of the
oscilloscope until the range between white 100% and
0% is set to 4 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 120
±
10% of the
white level. (Refer to Fig. 2-3)
Receive the color bar pattern. (Audio Video Input)
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~6.
2-10: SUB COLOR
1.
2.
3.
4.
5.
6.
7.
8.
Fig. 2-3
0%
120%
100%
2-12: HORIZONTAL PHASE
1.
2.
3.
Receive the monoscope pattern.
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 SHIFT quantity of the OVER SCAN on right
and left becomes minimum.
2-13: VERTICAL SHIFT
1.
2.
3.
4.
Receive the monoscope pattern.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (07) on the remote control to
select "V SHIFT".
Check if the step No. V. SHIFT is "1".
Adjust the VR402 until the horizontal line becomes fit to
notch of the shadow mask.
2-14: VERTICAL SIZE
1.
2.
3.
4.
Receive the monoscope pattern.
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 SHIFT quantity of the OVER SCAN on upside
and downside becomes minimum.
Receive a broadcast and check if the pictrue is mormal.
1.
2.
2-15: OSD HORIZONTAL
1.
2.
Activate the adjustment mode display of Fig. 1-1.
Press the VOL. UP/DOWN button on the remote control
until the difference of A and B becomes minimum.
(Refer to Fig. 2-4)
Fig. 2-4
A
B
TV
00 OSD 15
2-16: SUB SHARPNESS
1.
2.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select "SHARPNESS".
Check if the step No. of SHARPNESS is "40".
Press the INPUT SELECT button on the remote control
to set to theAV mode. Then perform the above
adjustments 1~2.
2-17: H VCO
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (04) on the remote control to
select "H VCO".
Check if the step No. of H VCO is "4".
