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6 timing / genlock alignment – Grass Valley XtenDD DD User Manual

Page 169

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7. Initial Installation

7 - 39

Planning and Installation - Rev. 3 / 04.2005

7.6

TIMING / GENLOCK ALIGNMENT

When source signals are fed into the switcher, it must be ensured that the time dif-

ference between the sources is not outside the operating range of the internal swit-

cher autophasers. The output signals of the sources must correspond to the timing

customary in operation. For instance, no EE picture in a VTR, PB-Ref on CCVS etc.

The switcher’s Genlock Phase can be adjusted to the fed reference signal in the

range of - 12 lines to + 12 lines.

Autophasing

M/E2

> 0.5 line

Min delay

Aux outputs

Timing reference diagram SH-2-BM and SH-2S-BM

M/E3

M/E1

PP / ME3 outputs, PVW

< 0.5 line

Total timing position with respect to the reference blackburst

approx minus 12 lines

approx plus 12 lines

P/P

ME1 outputs, PVW

range input

approx. 3.1 us

approx. 3.1 us