Sony DNW-A100 Maintenance Manual page 76

3-7. Video System Alignmnet (VPR-17 Board)
3-7-5. Component Video Output (Betacam) Adjustment (525/60 System)
Output Level Adjustment
1. To enter the maintenance mode, press S1101(G-1) on
the SS-63 board.
2. In C21 : VIDEO TEST SG of the maintenance mode,
select the test signal "75% Color Bars".
3. To exit the C2 : AUDIO/VIDEO CHECK, press the
MENU button two times.
4. Enter A20 : VPR VR of the maintenance mode.
Check (Adjustment)
5. Set the oscilloscope as follows:
Band width limit: ON
CH-1: DC 100 mV/DIV
TIME: 10 µs/DIV
TRIG: CH-1
6. Connect the oscilloscope's CH-1 input to VIDEO
OUTPUT COMPONENT R-Y connector, then check
the output level.
If the specification is not satisfied, perform the
adjustment.
Adj. point: A20 : VPR VR : R-Y OUTPUT LEVEL
Specification: A = 757 ± 7 mV p-p
7. Connect the oscilloscope's CH-1 input to VIDEO
OUTPUT COMPONENT B-Y connector, then check
the output level.
If the specification is not satisfied, perform the
adjustment.
Adj. point: A20 : VPR VR : B-Y OUTPUT LEVEL
Specification: B = 757 ± 7 mV p-p
COMPONENT R-Y
A
8. To exit A20 : VPR VR, press the MENU button once.
3-40
COMPONENT B-Y
B
Data save (Store the adjusted data)
When the adjustment was not performed in both step 6 and
step 7, skip over to step 11.
9. 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".
10. To exit A2F : NV-RAM CONTROL, press the MENU
button once.
11. To exit the maintenance mode, press the MENU
button three times.
DNW-A100/A50/A45
DNW-A100P/A50P/A45P