Toshiba 20AF41C Service Manual page 11

2-16: SEPARATION 1, 2
1. Receive the stereo signal (L=2KHz, R=400Hz).
2. Connect the AC voltmeter to AUDIO OUT JACK though
stereo filter (L=400Hz, R=2KHz).
3. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (31) on the remote control to
select "SEP1".
4. Press the VOL. UP/DOWN button on the remote control
until the output of L-CH and R-CH become minimum.
5. Press the CH UP button once the set to "SEP2" mode.
6. Press the VOL. UP/DOWN button on the remote control
until the output of L-CH and R-CH become minimum.
7. Press the CH DOWN button once the set to "SEP1"
mode.
8. Repeat step 4 to step 7 several times.
The output difference of the between with Filter and
without Filter should be more than 25db for both L and R.
2-17: BRIGHTNESS
1. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "BRI".
2. Press the VOL. UP/DOWN button on the remote control
until the brightness step No. becomes "68"
3. Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
1~2.
4. Press the TV/VIDEO button on the remote control to set
to the CS mode. Then perform the above adjustments
1~2.
2-18: UNI-COLOR
1. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (18) on the remote control to
select "UNI COL".
2. Press the VOL. UP/DOWN button on the remote control
until the contrast step No. becomes "8"
3. Press the TV/VIDEO button on the remote control to set
to the AV mode.
4. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (18) on the remote control to
select "UNI COL".
5. Press the VOL. UP/DOWN button on the remote control
until the contrast step No. becomes "4"
6. Press the TV/VIDEO button on the remote control to set
to the CS mode. Then perform the above adjustments
4~5.
ELECTRICAL ADJUSTMENTS
2-19: SUB TINT/SUB COLOR
1. Receive the color bar pattern. (RF Input)
2. Connect the synchro scope to TP806.
3. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (20) 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. 2-2.
5. Connect the synchro scope to TP804.
6. Press the CH DOWN button 3 times to set to
"SUBCONT" mode.
7. Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 115% of the white
level. (Refer to Fig. 2-3)
8. Receive the color bar pattern. (Audio Video Input)
9. Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~7.
10. Receive the color bar pattern. (Audio Video Input)
11. Press the TV/VIDEO button on the remote control to set
to the CS mode. Then perform the above adjustments
2~6.
12. Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 140% of the white
level. (Refer to Fig. 2-4)
White 100%
White 100%
Fig. 2-2
RED Level
Fig. 2-3
RED Level
Fig. 2-4