Tektronix LTA7P Series, Service Manual

Page: 145 / 172

Troubleshooting
TLA7Nx, TLA7Px, & TLA7Qx Logic Analyzer Module Service Manual
6- 37
Table 6- 7: Diagnostic tests (Cont.)
Circuit board Extended Power on Group & test
Acquisition board Trigger
Address/Data Bus
n n
Internal RAM
n n
Data Events
n
Clock Events
n
Log_G Signal
n n
Trigger Crossbar
n n
Signal/Trigger Lines
n n
Acquisition RAM
RAM Selection
n n
Acq/Clk/TS RAM
n
DAC
n n
Acquisition Address Decode
n n
At-speed Threshold Acquire
1
n
At-speed Async Acquire
n
At-speed Sync Acquire
n
Daughter board Miscellaneous
(TLA 7N3, TLA 7N4, TLA 7P3, and TLA 7P4
only)
At-speed Threshold Acquire
1,2
n
1 Ensure probes are disconnected before running this test.
2 Replace the daughter board if this test fails and both the DAC and the At-speed Async Acquire test pass.