Goodmans GTV371VCR Service Manual page 24

2-6: CUT OFF
1. Place the set with Aging Test for more than 15 minutes.
2. Set condition is AV MODE without signal.
3. Using the remote control, set the brightness and
contrast to normal position.
4. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (5) on the remote control.
The Fig. 2-2 appears on the display.
5. Press the channel button (5) on the remote control to
select "CUT OFF".
6. Adjust the Screen Volume until a dim raster is obtained.
2-7: FOCUS
1. Receive the monoscope pattern.
2. Using the remote control, set the brightness and
contrast to normal position.
3. Turn the Focus Volume fully counterclockwise once.
4. Adjust the Focus Volume until picture is distinct.
2-8: WHITE BALANCE
NOTE: Adjust after performing CUT OFF adjustments.
1. Place the set with Aging Test for more than 15 minutes.
2. Receive the white 100% signal from the Pattern
Generator.
3. Using the remote control, set the brightness and contrast
to normal position.
4. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (2) on the remote control to
select "AKB". The Fig. 2-3 appears on the display.
5. Press the channel button (2) on the remote control to
select the "R.BIAS".
6. Using the SET +/- keys on the remote control, adjust the
R.BIAS.
7. Press the CH. UP/DOWN button on the remote control to
select the "G.BIAS", "B.BIAS", "R.DRIVE" or "B.DRIVE".
8. Using the SET +/- keys on the remote control, adjust the
G.BIAS, B.BIAS, R.DRIVE or B.DRIVE.
9.
Perform the above adjustment 7 and 8 until the white
color is looked like a white.
1. AKB AUTO
2. R. BIAS
3. G. BIAS
4. B. BIAS
5. R. DRIVE
6. G. DRIVE
7. B. DRIVE
8. AGC AUTO
ELECTRICAL ADJUSTMENTS
0. RETURN
Fig. 2-3
2-9: SUB BRIGHTNESS
1. Receive the monoscope 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.
The Fig. 2-4 appears on the display.
4. Press the channel button (1) on the remote control to
select "BRIGHT".
5. Press the VOL. UP/DOWN button on the remote control
until the white 25% is starting to be visible.
6. Receive the monoscope 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.
1. BRIGHT
2. CONTRAST
3. COLOR
4. TINT
5. SHARPNESS
6. OSD CONT
7.
8.
2-10: SUB COLOR
1. Receive the color bar pattern. (RF Input)
2. Connect the synchro scope to TP801.
3. Using the remote control, set the brightness, contrast
and color to normal position.
4. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (4) on the remote control.
The Fig. 2-4 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 VOL. UP/DOWN button on the remote control
until the red level is set to the 4 divisions.
(Refer to Fig. 2-5)
8. Receive the rainbow pattern. (Audio Video Input)
9. Press the AV button on the remote control to set to the
AV mode. Then perform the above adjustments 2~7.
D2-2
0. RETURN
0%
100%
100%
Fig. 2-4
Fig. 2-5