Sony FD TRINITRON KV-21FX30E User Manual
Page 20
20
Sub Colour Adjustment
1.
Receive a PAL colour bar signal.
2.
Connect an oscilloscope to Pin 5 of CN003 [A Board].
3.
Enter into the ‘Service’ service menu.
4.
Adjust the ‘Sub Colour’ data so that the Cyan, Magenta and
Blue colour bars are of equal levels as indicated below.
Same Level
B-Out Waveform
Tuner AGC Adjustment
Note:
There should be no need to adjust the AGC as this is pre-
adjusted during manufacture of the FRONTEND. If the AGC
does need adjustment then follow steps 1. to 4. below.
1.
Receive a signal of 62dBuV / 75 ohm terminated via the tuner
antenna socket.
2.
Connect a voltmeter to pin1 of TU101 [print side of A Board]
or to the AGC pin of CN001 [mount side of A Board].
3.
Confirm that the AGC voltage is 3.5volts +/- 0.3volts.
4.
If adjustment is required, then re-adjust the AGC variable
resistor (located at the top rear of the FRONTEND) to obtain
a voltage of 3.5V +/- 0.3V.
1.
Enter into the ‘Geometry’ service menu.
2.
Select and adjust each item in order to obtain the optimum image.
[ Print side of A board ]
Deflection System Adjustment
V SIZE
V LIN
S CORRECTION
V CENTRE
H CENTRE
H SIZE
PIN AMP
PIN PHASE
CORNER PIN
V ANGLE
Y
R
T
E
M
O
E
G
y
t
i
r
a
e
n
i
L
-
V
ll
o
r
c
S
-
V
k
l
B
H
-
t
f
e
L
k
l
B
H
-
t
h
g
i
R
e
l
g
n
A
-
V
w
o
B
-
V
e
r
t
n
e
C
-
H
e
z
i
S
-
H
p
m
A
-
n
i
P
n
i
P
-
r
e
n
r
o
C
-
U
n
i
P
-
r
e
n
r
o
C
-
L
e
s
a
h
P
n
i
P
e
p
o
l
S
-
V
e
z
i
S
-
V
n
o
i
t
c
e
r
r
o
C
-
S
e
r
t
n
e
C
-
V
m
o
o
Z
-
V
a
t
n
e
g
a
M
)
3
6
,
0
(
)
3
6
,
0
(
)
5
1
,
0
(
)
5
1
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
)
3
6
,
0
(
j
d
A
2
3
8
6
j
d
A
j
d
A
j
d
A
j
d
A
j
d
A
j
d
A
j
d
A
j
d
A
5
3
j
d
A
j
d
A
j
d
A
3
2
0
4