Orion MD17 Service Manual page 32

2-17: SUB CONTRAST (PAL)
1. Receive the PAL color bar pattern. (RF Input)
2. Using the remote control, set the brightness and
contrast to normal position.
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.
4. Press the channel button (2) on the remote control to
select "CONTRAST".
5. Press the PLAY or STOP button on the remote control
until the bar step is set to "89".
6. Receive the PAL color bar pattern. (Audio Video Input)
7. Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 2~5.
2-18: SUB CONTRAST (SECAM)
1. Receive the SECAM color bar pattern. (RF Input)
2. Using the remote control, set the brightness and
contrast to normal position.
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.
4. Press the channel button (2) on the remote control to
select "CONTRAST".
5. Press the PLAY or STOP button on the remote control
until the bar step is set to "89".
6. Receive the SECAM color bar pattern. (Audio Video
Input)
7. Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 2~5.
2-19: SUB COLOR (PAL)
1. Receive the PAL color bar pattern. (RF Input)
2. Connect the synchro scope to TP801.
3. Using the remote control, set the brightness, contrast,
color and tint to normal position.
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.
5. Press the channel button (3) on the remote control to
select "COLOR".
6. Adjust the VOLTS RANGE VARIABLE knob of the
oscilloscope until the range between white 100% and 0%
is set to 4 divisions on the screen of the oscilloscope.
7. Press the PLAY or STOP button on the remote control
until the red level is set to the 3.8 (90%) divisions.
(Refer to Fig. 2-7)
8. Receive the PAL color bar pattern. (Audio Video Input)
9. Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 3~7.
ELECTRICAL ADJUSTMENTS
0%
90%
100%
Fig. 2-7
2-20: SUB COLOR (SECAM)
1. Receive the SECAM color bar pattern. (RF Input)
Connect the synchro scope to TP801.
2.
Using the remote control, set the brightness, contrast,
3.
color and tint to normal position.
Activate the adjustment mode display of Fig. 1-1 and
4.
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
5.
select "COLOR".
Adjust the VOLTS RANGE VARIABLE knob of the
6.
oscilloscope until the range between white 100% and 0%
is set to 4 divisions on the screen of the oscilloscope.
Press the PLAY or STOP button on the remote control
7.
until the red level is set to the 3.8 (90%) divisions.
(Refer to Fig. 2-7)
Receive the SECAM color bar pattern. (Audio Video
8.
Input)
9. Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 3~7.
2-21: SECAM DET
Place the set with Aging Test for more than 15 minutes.
1.
2. Receive the SECAM philips pattern.
3. Using the remote control, set the contrast and color to
normal position.
4. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (3) on the remote control to
select "SECAM". The Fig. 2-8 appears on the display.
5. Press the channel button (1) on the remote control to
select "R/B-Y DC LEVEL".
Using the ENTER button on the remote control, set to "R/
6.
B-Y DC LEVEL (S)" mode. And then adjust the PLAY or
STOP button on the remote control so that the Gray
scale color is the same as the "R/B-Y DC LEVEL (P)"
mode.
1. R/B-Y DC LEVEL
2.
3.
4.
5.
6.
7.
8.
D2-4
0. RETURN
Fig. 2-8