JVC 330 Service Manual page 69

Chapter 2—Functional Description
General I/O
This section provides a comprehensive description of the inputs to and outputs
from the VAB. The I/O description are arranged by the source/destination of the
signal and so the assemblies communicated with are used as the primary heading
of each group of signals and then are further subdivided into inputs and outputs. In
each case, the signal's direction is noted, with input referring to an input to the
VAB, and output to an output from the VAB (e.g.: under Video Processor Board;
'Input'; CLAMP refers to the signal CLAMP that is an input to the VAB from the
Video Processor Board). When test points are provided for the I/O they are noted.
Model 330, 340SC and 370SC Service Manual 2-57