Sony DNW-A100 Maintenance Manual page 82

3-7. Video System Alignmnet (VPR-17 Board)
3-7-9. Composite Video Output Adjustment (Another System)
Check (Adjustment)
5. Set the oscilloscope as follows:
CH-1: DC 200 mV/DIV, 10 µs/DIV
TRIG: CH-1, _ slope, coupling: LINE
6. With the oscilloscope's CH-1 input connected to each
VIDEO OUTPUT COMPOSITE connector, check the
white peak level.
If the specification is not satisfied, perform the
adjustment.
m
. The outputs of VIDEO OUTPUT COMPOSITE 1
and 2 connectors cannot adjust separately.
. When checking/adjusting the output of VIDEO
OUTPUT COMPOSITE 3 (SUPER) connector,
change the connection of the video monitor as
Connection 2 on the opposite page.
. The menu picture of the maintenance mode is
superimposed in the output of VIDEO OUTPUT
COMPOSITE 3 (SUPER) connector. If the super-
imposed picture obstructs, set the CHARACTER
switch on the sub control panel to OFF. (Be sure to
return it to ON after checking/adjusting.)
Output channel [Connection]
COMPOSITE 1 [Connection 1]
COMPOSITE 2 [Connection 1]
COMPOSITE 3 [Connection 2]
B
DNW-A100/A50/A45
3-46
Adjustment point Specification for
(A20 : VPR VR) DNW-A100/A50/A45
B = 700 ± 7 mV
VIDEO 1/2 LEVEL
VIDEO 1/2 LEVEL
VIDEO 3 LEVEL
7. To exit A20 : VPR VR, press the MENU button once.
Data save (Store the adjusted data)
When the adjustment in step 6 was not performed, skip
over to step 10.
8. Enter A2F : NV-RAM CONTROL, then execute
"SAVE ALL ADJUST DATA".
. Message "Save Complete" is displayed on the video
monitor when this data save is completed normally.
n
When loading the previous data without save the
current adjusted data, execute "ALL DATA PREVI-
OUS".
9. To exit A2F : NV-RAM CONTROL, press the MENU
button once.
10. To exit the maintenance mode, press the MENU
button three times.
Specification for
DNW-A100P/A50P/A45P
A = 714 ± 7 mV
(A = 100 ±1 IRE)
A
DNW-A100P/A50P/A45P
DNW-A100/A50/A45
DNW-A100P/A50P/A45P