GRASS VALLEY KAM-DEC-4ADC-MUX, Инструкция по эксплуатации

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78 KAM-DEC-4ADC-MUX Instruction Manual
Service
Service
The Kameleon 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 except to check and replace fuses.
Troubleshooting
If your module is not operating correctly, proceed as follows:
• Check frame and module power at the front edge testpoints ( Figure 46 ).
• If power is not present, check the fuse on the +24 V input ( Figure 46 ).
• Check for presence and quality of input signals.
• Verify that source equipment is operating correctly.
• Check cable connections.
Figure 46. Location of Module Fuse and Voltage Testpoints
Refer to Figure 9 on page 15 for the location of PWR LED and Table 2 on
page 16 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 Support Information number.
J12
J12
Voltage
Test Points
+15V
+5V
+3.3V
-5V
-15V
+1.5V
8343_09
Fuse F1, 2A 125 V