4-5
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
1. Pedestal level Adjustment
(1) Connect as connection 2.
n
When the board suffix No.is -11, it is required to extend the DEC-65 board with the extension board.
Wait for 30 seconds after turning off the power, then perform the extension.
(2) Input the lamp signal from the signal generator.
(3) Observe the burst signal portion of VIDEO OUTPUT COMPOSITE 2 output with the waveform
monitor or oscilloscope.
Setting of measurement equipment
.
Waveform monitor
SWEEP:
1 H, MAG
GAIN:
x
5
UNCAL:
MAX
.
Oscilloscope
CH-1:
DC 0.5 mV/DIV, 2
u
s/DIV
Band-width limit: ON
(4) Adjust that the waveform of the pedestal portion satisfies the specification.
Board suffix No. is -12 and higher:
Adjust
1
RV300 on the DEC-65 board.
Board suffix No. is -11:
Adjust
1
RV2 on the DUS-722 board.
After adjustment
Before adjustment
VIDEO OUTPUT COMPOSITE 2
Specification: Check that the difference of the pedestal
portion is not recognized.
A
DEC-65E
A
B
C
D
E
F
G
1
2
3
4
5
6
7
A
B
C
D
F
G
1-648-542-12-
MADE IN JAPAN
1
2
3
4
5
6
7
DECORDER
ANALOG INPUT
EVR
DIGITAL FILTER
CLOCK GEN
R V 3 0 0
Suffix No. -12 and higher
A
DEC-65E
A
B
C
D
E
F
G
1
2
3
4
5
6
7
A
B
C
D
F
G
1-648-542-11
MADE IN JAPAN
1
2
3
4
5
6
7
DECORDER
ANALOG INPUT
EVR
DIGITAL FILTER
CLOCK GEN
R V 2
DUS-722
I C 2 0 3
Suffix No. -11
4-1. DEC-65 Board (BKDW-505/506)