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2-5: SUB CONTRAST
1.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (14) on the remote control to
select "CONTRAST".
2.
Press the VOL. UP/DOWN button on the remote
control until the contrast step No. becomes "78"
3.
Press the TV/AV button on the remote control to set to
the AV mode. Then perform the above adjustments
1~2.
2-6: SUB TINT/SUB COLOR
1.
Receive the color bar pattern.
2.
Connect the synchro scope to TP023.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "TINT".
4.
Press the VOL. UP/DOWN button on the remote control
until the waveform becomes as shown in Fig. 2-1.
5.
Connect the synchro scope to TP022.
6.
Press the CH DOWN button once to set to "COLOR"
mode.
7.
Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 100% of the white
level. (Refer to Fig. 2-2)
8.
Receive the black pattern*. (Audio Video Input)
9.
Press the TV/AV button on the remote control to set to
the AV mode. Then perform the above adjustments 2~7.
White 100%
2-7: FOCUS
1.
Receive a Crosshatch pattern.
2.
Turn the Focus Volume fully counterclockwise once.
3.
Adjust the Focus Volume until picture is distinct.
CM153
ELECTRICAL ADJUSTMENTS
Fig. 2-1
White 0%
0%
100%
Red Level
Fig. 2-2
2-8: HORIZONTAL PHASE
1.
Receive a Crosshatch pattern.
2.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (05) on the remote control to
select "H. PHASE".
3.
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
right and left becomes minimum.
2-9: VERTICAL SIZE
1.
Receive a Crosshatch pattern.
2.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (06) on the remote control to
select "V. SIZE".
3.
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
right and left becomes 10 ± 2%.
2-10: VERTICAL SHIFT
1.
Receive a Crosshatch pattern.
2.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (07) on the remote control to
select "V. SHIFT".
3.
Press the VOL. UP/DOWN button on the remote
control until the horizontal line of the color bar comes to
approximate center of the CRT.
2-11: OSD HORIZONTAL
1.
Activate the adjustment mode display of Fig. 1-1.
2.
Press the VOL. UP/DOWN button on the remote
control until the difference of A and B becomes
minimum. (Refer to Fig. 2-3)
00 OSD
A
2-12: VIF VCO
1.
Place the set with Aging Test for more than 10 minutes.
2.
Receive an 80dB monoscope pattern.
3.
Connect the digital voltmeter between the pin 5 of
CP601 and the GND.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (03) on the remote control to
select "V. VCO".
5.
Press the VOL. UP/DOWN button on the remote control
until the digital voltmeter is 2.5V.
2-13: CONSTANT VOLTAGE
1.
Connect the digital voltmeter to TP401.
2.
Set condition is AV MODE without signal.
Adjust the VR501 until the DC voltage is 135 ± 1V.
3.
2-5
TV
15
B
Fig. 2-3
MX474C - SERVICING
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