Set the vertical system EN 6 Set the vertical system The TO1254D provides four input channels, CH1-CH4, each with an independent vertical control system. The control system of the four channels is the same. This chapter describes how to set CH1. Please read this section carefully to understand the settings, functions and operations of the vertical system. Figure 6.1 Channel vertical menu 6.1 Open or close the analog channel Tap the channel icon to switch the function: open channel, open channel vertical menu, close channel. If the channel label is in yellow as shown below, it indicates that the channel is open. If the channel label is gray, it indicates that the channel is closed.
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