Composite Y Signal Level Adjustment; Composite Y Signal Offset Level Adjustment - Panasonic DVCPRO50 Service Manual

5-13. Composite Y signal Level
Adjustment
BOARD V IN (F2A)
TP Component Y OUT
ADJ. C01: SITE Y GAIN (Service Menu)
TAPE -----
INPUT Analog Composite Signal
(75% Color Bar with 7.5% Setup
MODE EE
M. EQ Analog WFM
SPEC. Y signal (A)(100%!"7.5%) : 661 ± 3mV
(This adjustment performs without extender board.)
1. Open the SERVICE MENU. (Refer to SEC1
Service Information.)
2. Select the C00: VIN ADJUST and press the
"SET" button to open the V IN ADJUST MENU.
3. Select C-2 CMPST ADJUST and press the "SET"
button to open the CMPST ADJUST menu.
4. Adjust the C01 SITE Y GAIN so that the level "A"
is in the specification. (Level "A" is between
100% portion and 7.5% portion.)
5. Close the menu.
100% Level
Y OUT
Note:
When open the "C-1: CMPNT ADJUST" page of the
Service Menu, the Video Input Select is changed to
"Y PB PR" (Component Input) automatically.
And also, when open the "C-2: CMPST ADJUST"
page of the Service Menu, the Video Input Select is
changed to "CMPST" (Composite Input) automatically.
However, the indicator of video input on the front
panel is not changed.
A
7.5% Level
5-14. Composite Y Signal Offset
level Adjustment
BOARD V IN (F2A)
TP Component Y OUT
ADJ. C02: SITE Y OFS (Service Menu)
TAPE -----
INPUT Analog Composite Signal
(0% Flat Field)
MODE EE
M. EQ Analog WFM
SPEC.
(This adjustment performs without extender board.)
1. Open the SERVICE MENU. (Refer to SEC1
Service Information.)
2. Select the C00: V IN ADJUST and press the
"SET" button to open the V IN ADJUST MENU.
3. Select C-2 CMPST ADJUST and press the "SET"
button to open the CMPST ADJUST menu.
4. Adjust the C02 SITE Y OFS so that the level "A"
is in the specification. (Level "A" is
between the pedestal level and offset level of Y
.)
signal
5. Close the menu.
Expand
Y OUT
ELE-38
The difference between the Pedestal
level and the offset level of Y signal (A) :
0 ± 3mV
Offset level of Y signal
A
Pedestal Level
the difference