Panasonic CT-13R18B, Service Manual

Page: 16 / 33

ELECTRICAL ADJUSTMENTS
D-2
2-6: VERTICAL SHIFT (RF)
2-7: OSD HORIZONTAL (RF)
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. 2-1)
B A
TV
00 OSD 15
Fig. 2-1
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (13) on the remote control to
select "BRI.CENT".
Press the VOL. UP/DOWN button on the remote control
until the brightness step No. becomes "120".
Receive a broadcast and check if the picture is normal.
Press the TV/VIDEO button on the remote to set to the
AV mode. Then perform the above adjustment 2~3. 1.
2.
3.
4.
2-8: BRIGHTNESS MANUAL (RF, AV)
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select "CONT.MAX".
Press the VOL. UP/DOWN button on the remote control
until the contrast step No. becomes "45".
Receive a broadcast and check if the picture is normal.
Press the TV/VIDEO button on the remote to set to the
AV mode. Then perform the above adjustment 2~3. 1.
2.
3.
4.
2-10: SUB CONTRAST (RF, AV)
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.SFT".
Press the VOL. UP/DOWN button on the remote
control until the horizontal line becomes fit to the notch
of the shadow mask.
2-9: SUB TINT/SUB COLOR (RF, AV)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Receive the color bar pattern. (RF Input)
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
select "TINT".
Connect the oscilloscope to TP023.
Press the VOL. UP/DOWN button on the remote control
until the section "A" becomes as straight line.
(Refer to Fig. 2-2)
Press the channel button (19) on the remote control to
select "COL. CENT".
Connect the oscilloscope to TP022.
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 110% of the white
level. (Refer to Fig. 2-3)
Receive the color bar pattern. (Audio Video Input)
Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~8.
Fig. 2-3
Fig. 2-2
"A"
Red 110% White 100%
100%