GRASS VALLEY 8960ENC -, Инструкция по эксплуатации

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8960ENC Instruction Manual 45
Service
Service
The 8960ENC 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 power and signal present LEDs.
• Check module voltage testpoints and fuse ( Figure 24 ).
• Check for presence and quality of input signals.
• Verify that source equipment is operating correctly.
• Check cable connections.
Refer to Figure 5 for the location of PWR LED and Table 2 on page 13 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 24. Module Voltage Testpoints and Fuse
GRASS VALLEY GROUP 8 9 6 0 E N C C O M P O S I T E E N C O D E R 6 7 1 - 4 6 9 8 -
GND
JP3
0642_09
JP3
Voltage
Test Points
1 +5V
+3.3V
-5V
F1
F2A 125V FAST
Fuse