Screen (G2) - Sony TRINITRON KV-21FA315 Service Manual

2-4. SCREEN (G2)

1. Input a dot pattern.
2. Set the PICTURE and BRIGHTNESS controls at minimum and
COLOR control at normal.
3. Adjust SBRT, GCUT, BCUT in service mode with an oscilloscope as
shown below so that voltages on the red, green, and blue cathodes
are 172 ± 2VDC.
172 – 2VDC
Ground
4. Observe the screen and adjust SCREEN (G2) VR in FBT to obtain
the faintly visible background of dot signal.
KV-21FA315/21FA515/29FA315/29FA515
± Pedestal
KV-21FA315/21FA515/29FA315/29FA515
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