Grass Valley 2042EDA - Manual (Page 18)

12 2042EDA Instruction Manual
2042EDA Dual Wideband Equalizing Distribution Amplifier
Service
The 2042EDA 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 unless otherwise directed by Customer Service.
Power-up Diagnostics Failure
If the module has not passed self-diagnostics, do not attempt to trouble-
shoot. Return the unit to Grass Valley (see
Module Repair ).
Troubleshooting
If your module is not operating correctly, proceed as follows:
■ Check frame and module power. If power is not present, check the fuse
on the +24V input to the module as illustrated in
Figure 10 .
■ Check for presence and quality of input signals.
■ Verify that source equipment is operating correctly.
■ Check cable connections.
Figure 10. Location of Module Fuse
Module Repair
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 Contacting Grass Valley Group at the front of this document for the
Grass Valley Customer Service Information number.
8066_05
SIG 2 PRES
SIG 1 PRES
F1
Fuse: 2 A FAST, 125 V