Sony DNW-A100 Maintenance Manual page 174

4-3. AD-105 Board (BKNW-104)
2. Component Video Betacam Output Level Check (In 525/60 system)
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This check can be performed only in 525/60 system.
When the check is performed in 625/50 system, go to "3. Component Video Output Phase Check".
Refer to 4-1 page for the operation method of the maintenance mode when checking.
(1) Connect as connection 1.
(2) Select SUB-ITEM 1: OUT PUT CAV LEVEL of ITEM-709 CAV LEVEL FORMAT, and set to "B-
CAM".
(3) Select C21: VIDEO TEST SG of C2: AUDIO/VIDEO CHECK of the maintenance mode.
(4) Set TEST SG output to "75% Color Bars".
(5) Check using a waveform monitor that the levels of Y, R-Y and B-Y satisfy the specifications.
When the specifications are satisfied, perform "3. Component Video Output Phase Check".
If the specifications are not satisfied, perform "3. Component Video Output (BETACAM) Level
Adjustment" of Section 6-9-2 of the maintenance manual part 1. (Electrical adjustment after replace-
ment of the VPR-17 board.)
COMPONENT Y
A
Specification : A = 714 ±7 mV
4-20
COMPONENT R-Y
B
Specification : B = 757 ±7 mV p-p
COMPONENT B-Y
C
Specification : C = 757 ±7 mV p-p
DNW-A100/A50/A45
DNW-A100P/A50P/A45P