Service Instructions
Multimobil 5C
Siemens Ltd. Med India
Version 5.0
Page 33 of 73
Copyright
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SIEMENS LTD. All rights reserved. For internal use only
LIH function
When the LIH ON (X-ray OFF) signal is input, writing of the video signal into frame
memory is halted and the signal in the memory is played back continuously until the
LIH OFF (X-ray ON) arrives to obtain static images. It is possible to switch between
frame read-out and field read-out. When the LIH is OFF, the memory image is
updated and the LIH image is cleared.
Frame storage function
Frame memory in addition to memory for LIH is used for this function. This function
allows one frame of the video signal to be recorded at any timing and then to be
played back continually to obtain a static image. Unlike the LIH, images in this
memory can be accessed as many times as required (images are output to VIDEO
OUT 1 or 2 by the output switch).
Recursive filter
This reduces X-ray quantum noise in the video signal and performs summed
averaging of video signals along the time axis. The reduction coefficient can be
switched among four steps, including OFF, using CONT BOARD switch S2 (INT VAL)
and by remote control. The motion detection function is not provided.