ELECTRICAL ADJUSTMENTS
D2-4
1. BRIGHT
2. CONTRAST
3. COLOR
4. TINT
5. SHARPNESS
6. TEXT CONTRAST
7. TEXT BRIGHT
8. 0. RETURN
"The adjustment items 4 and 7 is not used for this
model."
Fig. 2-6
Fig. 2-7
No brilliance on the left end scale.
The next scale have a slight brilliance.
2-14: SUB COLOR
1.
2.
3.
4.
5.
6.
7.
8.
9.
Receive the color bar pattern. (RF Input)
Using the remote control, set the brightness, contrast
and color to normal position.
Connect the synchro scope to TP801.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (4) on the remote control to
select "PICTURE". The Fig. 2-6 appears on the display.
Press the channel button (3) 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 5 scales on the screen of the oscilloscope.
Press the PLAY or STOP button on the remote control
until the red color level is adjusted to 100% of the white
level. (Refer to Fig. 2-8)
Receive the color bar pattern. (Audio Video Input)
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 2~7.
White 0%
0%
Red Level
White 100%
Fig. 2-8
2-15: SUB CONTRAST
1.
2.
3.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (4) on the remote control to
select "PICTURE". The Fig. 2-6 appears on the display.
Press the channel button (2) on the remote control to
select "CONTRAST".
Press the PLAY or STOP button on the remote control
until the contrast step No. becomes "100"
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 1~3.
2-16: SUB SHARPNESS
1.
2.
3.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (4) on the remote control to
select "PICTURE". The Fig. 2-6 appears on the display.
Press the channel button (5) on the remote control to
select "SHARPNESS".
Check if the step No. of SHARPNESS is "32".
Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 1~3.
2-17: TEXT CONTRAST
1.
2.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (4) on the remote control to
select "PICTURE". The Fig. 2-6 appears on the display.
Press the channel button (6) on the remote control to
select "TEXT CONTRAST".
Press the PLAY or STOP button on the remote control
until the bar step is set to "90".
2-18: V. S-CORRECTION (V. SC)
1.
2.
3.
4.
5.
6.
Receive the color bar pattern.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (1) on the remote control to
select "H/V". The Fig. 2-4 appears on the display.
Press the channel button (6) on the remote control to
select "V. SC 50/60".
Check if the step No. of V. SC is "22".
Receive the color bar pattern 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.
2-19: 21 PIN AUDIO OUT
1.
2.
3.
4.
5.
Receive the color bar pattern.
Connect the AC voltmeter to pin3 of J4501.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (5) on the remote control to
select "OTHERS". The Fig. 2-2 appears on the display.
Press the channel button (3) on the remote control to
select "FM LEVEL".
Press the PLAY or STOP button on the remote control
until the AC voltmeter is 550
±
2.5dbm.
2-20: 21 PIN VIDEO OUT
1.
2.
3.
4.
5.
Receive the color bar pattern.
Connect the synchro scope to TP4501.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (5) on the remote control to
select "OTHERS". The Fig. 2-2 appears on the display.
Press the channel button (2) on the remote control to
select "VIDEO LEVEL".
Press the PLAY or STOP button on the remote control
until the synchro scope is 1.0
±
0.15V.
100%
