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2–2
1780R-Series Service Manual
In addition to the standard accessories in Table 2–1 there are a number of
optional accessories that can be purchased, such as a portable case, maintenance
kits, etc., to complement the 1780R-Series Video Measurement Set. For more
information contact a Tektronix Inc. field office or distributor.
Table 2–2 is a partial list of optional accessories that are available for the
1780R-Series instruments.
Table 2–2: Partial List of Optional Accessories Available for the
1780R-Series
Item Description
Cabinet 1780F02 Portable Carrying Case with front and rear panel
covers
Circuit Bd. Extender Kit Used to service Oscillator and Z-Axis etched circuit boards
Viewing Hood Tektronix Catalog Accessory
Manual Service Manual
Rear Panel Connectors
Figure 2–1 shows the rear panel of the 1780R-Series. The following connectors
are on the rear panel
.
CH A. High impedance bridging loop-through input for composite video signal.
Shield can be grounded or floating depending on the position of the grounding
screw (located between the BNC connectors).
CH B1. High impedance bridging loop-through input for composite video signal.
Shield can be grounded or floating depending on the position of the grounding
screw (located between the BNC connectors).
CH B2. High impedance bridging loop-through input for composite video signal.
Shield can be grounded or floating depending on the position of the grounding
screw (located between the BNC connectors).
CH B3. High impedance bridging loop-through input for composite video signal.
Shield can be grounded or floating depending on the position of the grounding
screw (located between the BNC connectors).
EXT HORIZ. High impedance input through BNC connector. Positive-going
signal deflects the sweep from left to right. Requires a 0 to +5 V signal for full
scale deflection.