3-59
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
3. METAL C Adjustment
1.
Short-circuit TP6/DM-89(D-1) and E702/DM-89(D-1)
with a shorting clip.
2.
Connect the network analyzer’s output to TP303/DM-
89(B-5). GND: E301/DM-89(B-7)
n
The alignment tape (CR5-1B or CR5-1B PS) is still in the
VTR. (STANDBY OFF mode)
Group delay adjustment / METAL C
3.
Connect the oscilloscope’s CH-2 input to TP304/DM-
89(B-5). GND: E302/DM-89(B-5)
4.
Adjust the group delay time in 3 MHz through 9 MHz.
Adj. points:
1
RV301/DM-89(A-5) and
1
RV302/DM-89(A-5)
Specification: 0
±
20 ns
Main adjustment / METAL C
5.
Enter A33 : DM VR 2.
6.
Connect the oscilloscope’s CH-2 input to TP7/DM-89
(C-1). GND: E702/DM-89(D-1)
7.
Adjust the level at 8 MHz using 2 MHz as the refer-
ence.
Adj. point:
A33 : DM VR 2 : MAIN METAL-C-A
Specification: B =
+
0.5
±
0.5 dB
8.
Set the data of “MAIN METAL-C-B” in A33 : DM
VR 2 to the identical data value as “MAIN METAL-
C-A”.
9.
To exit A33 : DM VR 2, press the MENU button once.
NTSC model
PAL model
[ns]
+
20
3
9
[MHz]
_
20
0
[ns]
+
20
3
9
[MHz]
_
20
0
[dB]
A
2
8
[MHz]
0
A(
*
)MAG: 1 dB
[dB]
A
2
8
[MHz]
0
A(
*
)MAG: 1 dB
NTSC model
PAL model
3-8. Analog Betacam PB System Alignment
3-8-5. Cosine Equalizer Adjustment
