Grass Valley 2000T3 - Manual (Page 46)

46 Kameleon Frames Instruction Manual
Section 5 — Service
Figure 24. Power Supply Voltage Testpoints
3. Check Control Settings.
If there is any question about the correct function or operation of any
control, refer to the appropriate module manual. If proper control
settings do not help, go on to the next check.
4. Module Exchange.
If spare modules are available, module exchange is the most efficient
method of localizing a problem. This is especially true if you are not
familiar with the internal operation of the 2000 Series or its modules.
5. Visual Checks.
Visually check modules in which the trouble appears to be located.
Many problems can be located by visible indication, such as connectors
not seated or loose cables.
6. Check Voltages.
Begin by looking at the block diagrams located in each module manual.
This will provide a quick understanding of the module. Use an
oscilloscope or voltmeter to check that the voltages are correct.
Power Supply
8039-08
PS 1 Green OK LED
PS 2 Voltage test pad
Redundant
Supply
PS 1 Voltage test pad
PS 2 Green OK LED