User's Manual

Innovator CHV400BTD ATSC Transmitter System Set Up Procedure
Technical Manual, Rev. 0 65
System Set Up Procedure
This system was aligned at the factory and should not require additional adjustments
to achieve normal operation.
This Innovator CX Series system is of a tray design with multiple boards inside the
tray. If a board fails, that board needs to be changed out with a replacement board.
The failed board can then be sent back to Axcera for repair. NOTE: Contact Axcera
Customer Service Department at 1-724-873-8100 or fax to 1-724-873-8105, before
sending in any board or module.
Figure 14: (A4) Digital Upconverter Board (1309695)
Set Up of the LO1 and LO2 Samples on Upconverter Board
The following procedure should only be attempted if the Internal 10 MHz Reference is
used and the output carrier frequency is off. On the (A4) Digital Upconverter Board
(1309695), there are two Sample Jacks, J1 for LO1, 1GHz sample, and J9 for LO2,
the variable LO sample. Monitor the LO1 sample with a frequency counter and
adjust R119 to 1 GHz. The output carrier frequency should now be correct.
J1 (LO1) J9 (LO2)
R119
FREQ ADJ