Grass Valley 8980TLS - Manual (Page 14)

8 8980TLS Instruction Manual
8980TLS NTSC to HDTV Tri-level Sync Converter
adjustable over a range of more than one frame. If the switch settings reach
00000 when adjusting the timing earlier, the desired output timing can be
adjusted later by one frame to reach the same point. The same will be true
if the timing is being adjusted later and the setting reaches FFFFF. In this
case the timing can be adjusted earlier by one frame to reach the same
point.
Service
The 8980TLS modules make extensive use of surface-mount technology
and programmed parts to achieve compact size and adherence to
demanding technical specifications. Circuit modules should not be ser-
viced in the field.
If your module is not operating correctly, proceed as follows:
■ Check frame and module power and signal present LED
■ Check input signals
■ Check cables and connections
■ Verify that source equipment is operating correctly
■ Check output connections
Refer to Figure 7 for supply voltage test points that are located on the
8980TLS module.
Figure 7. Voltage Test Point Locations
If the module is still not operating correctly, replace it with a known good
spare and return the faulty module to a designated Grass Valley repair
depot. Call your Grass Valley representative for depot location.
Refer to the Contacting Grass Valley Group at the front of this document for
the Grass Valley Customer Service Information number.
8980
720P 1080I
0515_06
Ground
+5V