Grass Valley 8981FS - Manual (Page 34)

28 8981FS Instruction Manual
8981FS Digital Frame Synchronizer Module
Service
The 8981FS modules make extensive use of surface-mount technology and
programmed parts to achieve compact size and adherence to demanding
technical specifications. For other than fuse replacement, circuit modules
should not be serviced in the field. The 8981FS module has one fuse on the
+12 V input. This fuse is installed in a socket so it can be easily replaced.
If your module is not operating correctly, proceed as follows:
■ Check frame and module power and signal present LEDs.
■ Check for presence and quality of input signals.
■ Verify that source equipment is operating correctly.
■ Check cable connections.
Refer to Figure 4 for the location of PWR LED.
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.