Tektronix PSC1125, Instruction Manual

Page: 42 / 92

Performance Verification
4-10
PSC 1125 Digital Television Parallel-to-Serial Converter Instruction Manual
Figure 4-3: Example of eye pattern for an acceptable output signal
4. Exchange the cable connection on the oscilloscope:
a. Disconnect the coaxial cable from the OUT1 connector on the sampling
head of the oscilloscope.
b. Disconnect the coaxial cable from the TRIGGER DIRECT INPUT
connector on the oscilloscope, and then connect it to the CH1 connector
on the sampling head of the oscilloscope, through the 75-to-50
W
attenuator.
c. Connect the coaxial cable disconnected in step 4.a. to the TRIGGER
DIRECT INPUT connector on the oscilloscope, through the 75-to-50
W
attenuator.