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4-4. TM-40 Board Adjustment
n
Allow 30 minutes or more of warm up of MAV-555 and
measurement equipment before starting adjustments.
4-4-1. SCH DET Adjustment (525/60 mode)
Preparation
. Connect the black-burst signal "SCH : 0 degree" to the
REFERENCE IN connector on the rear panel.
. Set the setup menu "010-525/625" to "525/60".
n
Refer to the MAV-555 Installation Manual for the
operating procedures.
. Turn off the main power once then back on.
n
To restart quickly, execute the setup menu item [027-
FAST REBOOT].
Connection
SG1 : TSG-130
(TSG-131)
FRAME REF
SG2 : 1410
(1411)
GEN LOCK
CH-2
CH-1
Oscilloscope
A
B
C D
E
TP203
1
1
RV102
2
3
4
5
6
7
8
9
MAV-555
COMPOSITE
A
Vector
B
Monitor
J1
TP1212
REF
MAV-555
F
G H
J
K
L
1
1
RV101
RV1501
DPR-127 board (A side)
Adjustment Procedure
1. Set up the measurement equipment as follows:
. Vectormonitor :
SCH mode, INPUT : CH-B, EXT REF
. Signal generator SG2 (1410)
Synchronization : GEN LOCK
2. Adjust the PHASE knob of a vectormonitor to adjust
the sync phase to 0d.
3. Change the vectormonitor setting as follows.
INPUT : CH-A
4. Adjust the HORIZ DELAY knob of a signal generator
SG2 to adjust the sync phase to 0d.
5. Set up an oscilloscope as follows:
CH-1 : TP1212 (C-1)/TM-40 board, DC 2 V/DIV
CH-2 : FRAME REF/SG1 (TSG-130), DC 5 V/DIV
TIME : 20 ms/DIV
TRIG : CH-2 (_slope)
6. Turn the RV1202 (B-1)/TM-40 board fully counter-
clockwise (3).
7. Turn the RV1202 slowly clockwise (2) until the
oscilloscope CH-1 waveform appears in the field 1.
2-Frame
FRAME REF
TP1212
(Field 1)
(Field 3)
A
B
C
TP1212
1
1
RV1202
2
3
4
5
6
4-4. TM-40 Board Adjustment
D
E
F
G
H
TM-40 board (A side)
4-7 (E)
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