55 SYSTEM DEBUGGING FLOWCHART

TLF10385 – 23

Note 1

If the crystal oscillator is chosen as the input reference source then the XTL OUT pin should be checked for the correct frequency of oscillation If the

present)

56 AC TEST CIRCUITS

TLF10385 – 24

FIGURE 5-11 Switching Test Circuit

for All TTL Output Signals

TLF10385 – 26

FIGURE 5-12 Switching Test Circuit

for All ECL Output Signals

18