Sony KDS-R50XBR1 Training Manual page 111

Electrical H/V Center Adjustment
H/V center adjustment may be necessary if the optical

block is replaced. Unlike previous GW models H/V
center is adjusted by the Rook ICs on the C board.
Since the adjustment takes place at the end of the video

processing chain there is no need to adjust H/V center for
multiple Wide modes.
Use the below Service Items to adjust:

1 TG (Device)


*If "VST_POS" is changed greater than these limits then there could be issues with
Gamma.

17 FMD (Device)


TVP-21
VST_POS (for V center) Initial Data = 12
Adjust [1~25] Primary item for V center adjustment

First, try to adjust with VST_POS if you must change more than +13/-11 then start

to change with FMDVPOS
HST_POS (for H center) Initial Data = 261
FMDVPOS (Secondary Method for V center) Initial Data = 8
Adjust [1~17] Additional item for V center adj

Appendix
108