Installation manual

6. Initial Installation Diamond digital

6.10.4 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

switcher autophasers (DD5/DD10 = 52 µs, DD20/DD30 = 32 µs). The output sig-

nals 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 –1 line to + 2 lines.

Note: During Genlock Phase adjustment Key Memory should be disabled

to avoid a change-over of the key mode in the selection of the sources.

For the Genlock Phase adjustment proceed as follows:

1. DD5/DD10: Switch Keyer1 (or Keyer2) to Luminance Key.

Select key bus for key fill and key source.

DD20/DD30: Switch Keyer1 or Keyer2 of ME1 to Luminance Key.

Select key bus for key fill and key source.

2. Select first source on key bus.

3. Select menu option Genlock Phase in the SETUP menu.

4. Set Genlock Phase of the switcher to ”0” in the Setup and then increase until the

red/green signal (asynchronous) of the selected key bus stops flashing. Main-

tain and observe the adjusted status for a short time to make sure that no run-

ning-in occurs.

Then increase the value slightly to provide for a safe margin to the critical thresh-

old.

5. Switch through all applied sources on the key bus in the same way and verify.

Determine the highest value of the Genlock Phase adjustment and maintain this

value as final setup setting.