Grass Valley 8964FS - Manual (Page 47)

8964FS Instruction Manual 47
Service
Service
The 8964FS 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 serviced in the field
unless directed otherwise by Customer Service.
If your module is not operating correctly, proceed as follows:
• Check frame and module power and signal present LEDs.
• Verify power at the voltage testpoints (see Figure 26 ) and check fuse if
no voltage is detected.
• Check for presence and quality of input signals.
• Verify that source equipment is operating correctly.
• Check cable connections.
• Check output connections for correct I/O mapping (correct input con-
nector is used for the corresponding channel output).
Refer to Figure 4 on page 11 for the location of PWR LED and Table 2 on
page 12 for proper LED indications.
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 at the front of this document for the
Grass Valley Customer Service Information number.
Figure 26. 8964FS Fuse and Voltage Testpoint Locations
8301–05
Voltage Testpoints
J2
+5V
–5V
+3.3V
+1.5V
Fuse: 2 A Fast
125 V
F2