Sony Betacam SX DNW-A100 Maintenance Manual page 365
Digital video hybrid recorder
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Also See for Betacam SX DNW-A100:
- Maintenance manual (506 pages) ,
- Operation manual (134 pages) ,
- Brochure & specs (14 pages)
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(10) Connect and set the oscilloscope as follows:
Display: ALT mode
CH-1:
DC 2 V/DIV (Connected SG1's FRAME REF output)
CH-2:
TP502/VPR-17 (F-3), DC 2 V/DIV, GND: E501/VPR-17 (G-1)
TIME: 10 ms/DIV for DNW-A100/A50/A45
20 ms/DIV for DNW-A100P/A50P/A45P
Trigger: CH-1
(11) Turn the signal generator SG2's SC PHASE control knob clockwise (2) slowly until the waveform
of the oscilloscope's CH-2 (TP502) changes from a to b.
(12) Measure the BURST phase (angle A) on the vector when just inverted the phase of CH-2 (TP502)
on the oscilloscope.
(13) To return the position of the BURST signal to be displayed on the vector, turn SG2's SC PHASE
control knob counterclockwise (3).
(14) Turn the signal generator SG2's SC PHASE control knob counterclockwise (3) slowly until the
waveform of the oscilloscope's CH-2 (TP502) changes from a to b.
(15) Measure the BURST phase (angle B) on the vector when just inverted the phase of CH-2 (TP502)
on the oscilloscope.
(16) To return the position of the BURST signal to be displayed on the vector, turn SG2's SC PHASE
control knob clockwise (2).
(17) Confirm that the difference between the angles A and B is within specification.
If the specification is not satisfied, perform the steps (18) through (21).
Specification: A _ B = 0 ± 10d
Vector
A
Turn SC PHASE control knob (SG2)
clockwise slowly until the signal
phase of CH-2 (TP502) on oscillo-
scope is inverted. (a b)
Turn SC PHASE control knob (SG2)
counterclockwise slowly until the
signal phase of CH-2 (TP502) on
oscilloscope is inverted. (a b)
B
DNW-A100/A50/A45
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
http://getMANUAL.com
A
B
DNW-A100P/A50P/A45P
Oscilloscope
CH-1
(FRAME REF)
a
CH-2
(TP502)
b
A
B
C
D
E
F
G
E501
TP501
TP502
E500
TP700
TP701
TP500
VPR-17 Board (Side A)
6-9. VPR-17 Board Replacement
H
J
K
L
M
A N
E100
E101
6-127
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