AV-21PM
No. 56055
19
Measuring
Item
Test point
Adjustment part
instrument
Adjustment
●
Signal
TP-47G
6. TINT
of
generator
TP-E (
"
"
"
"
"
)
SUB TINT-
II
[CRT
●
Oscillo-
SOCKET
NTSC 3.58 TINT
scope
PWB]
●
Remote
control
unit
Adjustment
Remote
of BLACK
control unit
OFFSET
(SECAM)
7. SECAM BL
ADJUST
Description
[Method of adjustment using measuring instrument]
(NTSC 3.58 TINT)
1.
Receive a NTSC 3.58 colour bar signal (full field colour bar
75% white).
2.
Select 2. V/C from the SERVICE MENU.
3.
Select 6. TINT with the MENU a key.
4.
Set the initial setting value of NTSC 3.58 with the MENU - or
+ key.
5.
Connect the oscilloscope between TP-47G and TP-E.
6.
Adjust NTSC 3.58 TINT to set the value (B) in the figure to
+5V (W & Cy).
7.
Press the DISPLAY key twice to return to the normal screen.
(NTSC 4.43 TINT)
When adjustment is done for NTSC 3.58 TINT, appropriate val-
ues are automatically set for NTSC 4.43 TINT.
[Method of adjustment without measuring instrument]
1.
Receive a SECAM HALF COLOUR BAR signal (210.25MHz).
2.
Select 2. V/C from the SERVICE MENU.
3.
Select 7. SECAM BL ADJUST with the MENU a key.
4.
Set the initial setting value the MENU - or + key.
5.
While alternately pressing keys 1 (Black & White ON) and 2
(Black & White OFF), make sure that there is no colour on the
black & white screen.
6.
If the black & white screen is not the best with the initial set-
ting value, make fine adjustment until you get the best black
& white screen.
7.
Press the DISPLAY key twice to return to the normal screen.
Mg
B
(
−
)
0V
(
+
)
R
Cy
Y
W
(B)
G
REMOTE CONTROL UNIT
BLACK &
WHITE ON
BLACK &
WHITE OFF
1
2
3
4
7
8
9
5
6
