Grass Valley 8964ENC v.1.2.2 - Manual (Page 66)

66 8964ENC/-FS — Instruction Manual
Service
Service
The 8964ENC 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 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 32 ) 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 7 for the location of PWR LED and Table 2 on page 19 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 on page 4 at the front of this document
for the Grass Valley Customer Service Information number.
Figure 32. 8964ENC Fuse and Voltage Testpoint Locations
8209_09
r2
Voltage Testpoints
J1
+5V
–5V
+3.3V
+1.5V
Fuse: 2 A 125 V
F2