Toshiba 20A43 Service Manual page 15

2-14: SUB TINT/SUB COLOR
1. Receive the color bar pattern.
2. Connect the oscilloscope to TP024.
3. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (22) on the remote control to
select "TINT".
4. Press the VOL. UP/DOWN button on the remote control
until the section "A" becomes as straight line
(Refer to Fig. 2-2)
5. Connect the oscilloscope to TP022.
6. Activate the adjustment mode display of Fig. 1-1 and
press the channel button (19) on the remote control to
select "COL.CENT".
7. Adjust the VOLTS RANGE VARIABLE knob of the
oscilloscope until the range between white 100% and
0% is set to 4 scales
8. Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 110% of the white
level. (Refer to Fig. 2-3)
9. Receive the color bar pattern. (Audio Video Input)
10. Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~8.
"A"
Red 110%
White 100%
ELECTRICAL ADJUSTMENTS
"A"
Fig. 2-2
Fig. 2-3
2-18: Confirmation of Fixed Value (Step No.)
Please check if the fixed values of the each adjustment
items are set correctly referring below. (RF/AV/CS)
NO. FUNCTION
04 H VCO
14 BRIGHT MAX
15 BRIGHT MIN
16 CONT CENT
18 CONT MIN
20 COLOR MAX
21 COLOR MIN
23 SHARPNESS
24 FM LEVEL
28 TEST MONO
29 TEST STERIO
D-3
STEP NO.
04
170
60
40
20
80
00
40
01
00
00