Circuit Adjustments; Bk Board Adjustments - Sony TRINITRON BVM-A14F5M Service Manual

4-1. BK Board Adjustments

This section describes the adjustments which are required
when performing the maintenance and parts replacement of
the BK board.
1. Bright center adjustment
2. 100 IRE adjustment
3. MATRIX adjustment (1)
4. MATRIX adjustment (2)
5. DRIVE Level adjustment
6. BIAS Level adjustment
BVM-A14
Section 4

Circuit Adjustments

Control settings
. Set as follows at the INPUT CONFIGURATION menu
of the SETUP menu.
For the analog RGB signal:
FORMAT ....................... RGB
For the SDI signal:
FORMAT ....................... HD-SDI/D1 AUTO
. Select and execute SLOT 5 VIDEO in the FILE MAN-
AGEMENT menu → DATA MAINTENANCE → RE-
LOAD FACTORY DATA.
. Configure the following settings in the SYSTEM
CONFIGURATION menu → MAINTENANCE →
VIDEO (2/5).
CONTRAST ................... 256
SUB CONTRAST .......... 400
BRIGHT ......................... 256
CHROMA ...................... 256
4-1