We use an analog oscilloscope to view DVD RF signals, but when we want to view other signals simultaneously with the RF signals we use the DL7100 SignalExplorer. DL7100 has long memory and capability to measure 4 analog channels and 16 bit logic signals simultaneously. In addition, the history search function enables us to search for abnormal waveforms within that history memory automatically.

We also use the trigger function together with the above-mentioned functions since it's easy to enter conditions.

We have installed 30 of the TA320 Time Interval Analyzers on our DVD player mass production lines. On the line we're only concerned with jitter values and GO/NO-GO determinations. When we use instruments to analyze failures occurring there we go with the TA520, and analyze the jitter at each nT pulse width. We used to record the jitter value at each nT pulse width, but with the TA520 we can display the data in a histogram and as statistical values, so it's very convenient. Whenever we had difficulty operating the measuring instrument we called the customer service center, and the service staff would clearly and politely give us the explanations we needed; we are also very satisfied with YOKOGAWA's support system.