Advertisement
(12). Output C Gain Adjustment
Test Point:
Video Out Composite Connector
Adjust:
R444 (COMP C)
8
Connect the Vectorscope to the Video Out Y/C Connector.
8
Adjust R444 so that the Chrominance Gain and Phase are
adjusted to proper position (± 3%, 3%) as shown in Fig. 3-
8.
g
dø
20%
Y
L
dG
10°
0°
10°
yl
20%
dG
G
(13). Output SC-H Adjustment
Test Point:
Video Out Composite Connector
Adjust:
R445 (SC-H)
8
Connect the Vectorscope to the Video Out Y/C Connector.
8
Adjust R445 so that the SC-H Phase becomes 0 ± 5°.
(14). ADV. REF. SC-H Adjustment
Test Point:
ADV. REF. Out Connector
Adjust:
R446 (ADV.REF.)
8
Connect the Vectorscope to the ADV. REF. Output
Connector.
8
Adjust R446 so that the SC-H Phase becomes 0 ± 5°.
(15). Gen/Lock Colour Phase Adjustment
Test Point:
Video Out Composite Connector
Adjust:
R438 (C-PHASE)
8
Supply the Video signal to the Gen/Lock Input Connector.
8
Adjust the Colour Phase roughly 0° by Switch SW201.
8
Adjust R438 so that the Colour Phase becomes 0 ± 10 °.
(16). Gen/Lock Horizontal Phase Adjustment
Test Point:
Video Out Composite Connector
Adjust:
R436 (H-PHASE)
8
Supply the Video signal to the Gen/Lock Input Connector.
8
Adjust the Horizontal Phase roughly 0° by Switch SW203.
8
Adjust the Horizontal Phase 0° by Switch SW202.
Rear Panel
Mixer Board
cy
R
M
G
V
75%
100%
b
U
B
C
Y
mg
r
Fig. 3-8
Rear Panel
Mixer Board
Rear Panel
Mixer Board
Rear Panel
Mixer Board
Rear Panel
Mixer Board
8
Adjust R436 so that the Horizontal Phase becomes 0 ± 70
nS.
Input Board
Before start to adjust the Input Board, executes the
executes Manual Digitizer, set the Record mode.
(17). FVCXO1 Frequency Adjustment
Test Point:
TP202 (FVCXO1)
Adjust:
C601 (FVCXO1)
8
Disconnect all input from the AY-NE2000E.
8
Connect the Frequency Counter to TP202.
8
Adjust C601 to obtain 4.433624 MHz ± 5 Hz.
(18). FVCXO2 Frequency Adjustment
Test Point:
TP206 (FVCXO2)
Adjust:
C602 (FVCXO2)
8
Disconnect all input from the AY-NE2000E.
8
Connect the Frequency Counter to TP206.
8
Adjust C602 to obtain 4.433624 MHz ± 5 Hz.
(19). Component Carrier Balance Adjustment
Test Point:
Video Out Y/C Connector
Adjust:
R805 (COMP CAR BAL-1)
R806 (COMP CAR BAL-2)
8
Select the CH1-Component Input by the Device setting,
and supply the Colour Bar signal to the Component Input
Connector of CH1.
8
Connect the Vectorscope to the Video Out Y/C Connector.
8
Set the Gain Control of the Vectorscope to the maximum.
8
Adjust R805 and R806 so that the vector positions at the
center of the Vectorscope as shown in Fig. 3-9.
dø
20%
dG
10°
0°
10°
20%
dG
8
Set the Gain Control of the Vectorscope to the normal.
9
Positions at center.
cy
g
R
M
G
V
75%
Y
L
100%
b
U
B
yl
C
G
Y
mg
r
Fig. 3-9
Input Board
Input Board
Input Board
Input Board
Rear Panel
Input Board
Input Board
Advertisement
