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Maintenance
7–16
VX1410 IntelliFrame Instruction Manual
Troubleshooting Procedures
The troubleshooting procedures are designed to isolate problems to a module
level. No component-level procedures are provided.
The following test equipment is recommended for troubleshooting procedures.
H
Digital Voltmeter (Tektronix DM250 series digital voltmeter)
H
Oscilloscope, 20 MHz BW, with 10x Probe with < 1-inch ground lead,
(Tektronix TDS400A or TDS500A series oscilloscope)
The standard VX1410 IntelliFrame does not include diagnostics. The functional-
ity of the mainframe can be verified by following the performance verification
procedures as described in Performance Verification beginning on page 5–1.
The mainframe has two fuses for normal operation, the line fuse and a 5 V fuse
on the backplane. The line fuse can be one of three different kinds depending on
the operating voltage of the mainframe. Table 7–1 summarizes the different fuses
in the mainframe.
Table 7–1: Fuses
Voltage
Rating
Tektronix Replacement
Part Number
90 V to 132 V operation
20 A, Slow Blow, 250 V
159-0379-XX
103 V to 250 V operation
15 A, Fast Blow, 250 V
159-0256-XX
207 V to 250 V operation
6.3 A, Fast Blow, 250 V
159-0381-XX
5 V Backplane
4 A, Fast Blow, 250 V
159-0320-XX
The main focus of the troubleshooting procedures is to isolate problems to one of
the major modules within the mainframe. You may find it helpful to refer to the
functional block diagram in Figure 7–12 on page 7–19 to isolate problems to one
of the modules within the mainframe.
Equipment List
Diagnostic Information
Fuses
Fault Isolation
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