Toshiba 19A25 Service Manual - Page 15
Browse online or download pdf Service Manual for TV Toshiba 19A25. Toshiba 19A25 33 pages. Toshiba color television owner's manual 19a25
Also for Toshiba 19A25: Owner's Manual (15 pages)
Print Page
2-6: VERTICAL SIZE
1.
Receive the monoscope pattern.
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 (06) on the remote control to
select "V. SIZE".
4.
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on upside and
downside becomes 10 ± 2%.
2-7: 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 (13) on the remote control to
select "BRI.CENT".
4.
Press the VOL. UP/DOWN button on the remote control
until the white 10% is starting to be visible
5.
Receive the monoscope pattern. (Audio Video Input)
6.
Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~4.
2-8: SUB TINT/SUB COLOR
1.
Receive the color bar pattern.
2.
Connect the oscilloscope to TP023.
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. 2-1)
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.
Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 120 ± 5% of the
white level. (Refer to Fig. 2-2)
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
ELECTRICAL ADJUSTMENTS
"A"
Fig. 2-1
D-2
white 100% red 120%
2-9: SUB CONTRAST
1.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (17) on the remote control to
select "CONT. MAX".
2.
Press the VOL. UP/DOWN button on the remote control
until the contrast step No. becomes "60".
3.
Receive a broadcast and check if the picture is normal.
4.
Press the TV/VIDEO button on the remote control to set to
the AV mode. Then perform the above adjustments 1~3.
2-10: OSD HORIZONTAL
1.
Activate the adjustment mode display of Fig. 1-1.
2.
Press the VOL. UP/DOWN button on the remote control
until the difference of A and B becomes minimum.
(Refer to Fig. 2-3)
00 OSD
A
2-11: Confirmation of Fixed Value (Step No.)
Please check if the fixed values of the each adjustment
items are set correctly referring below. (RF/AV)
NO.
FUNCTION
04
H. VCO
14
BRIGHT MAX
15
BRIGHT MIN
16
CONTRAST CENT
18
CONTRAST MIN
20
COLOR MAX
21
COLOR MIN
23
SHARPNESS
24
FM LEVEL
25
LEVEL
26
SEPARATION1
27
SEPARATION2
TV
28
B
STEP NO.
04
183
60
30
17
74
00
45
00
00
00
00
Fig. 2-2
Fig. 2-3