Siemens Uroskop ACCESS, Troubleshooting Manual, Page: 14 / 26

Uroskop ACCESS SPL5-330.840.01 Page 2 of 12 Siemens AG
Endoscopy Option Rev. 01 03.03 CS SD 24 Medical Solutions
5 - 2 Error Correction
•
Check the videosignal with an oscilloscope.
•
Check the entire image. If necessary adjust according ""Checking/Setting the TFT
Monitor", see page 5-4.
Skipping
5
Skipping may occur during fast horizontal movement. It only occurs during a few medical
applications.
•
The problem cannot be corrected by adjusting the monitor.
Blooming
5
Blooming can have different causes.
5
Do not disconnect the plug when testing the video signal at the endoscopy interface input,
otherwise the 75 Ohm termination will fail.
Example of video signal at the oscilloscope with a pair of chrome-plated pliers.
The video signal truncates / reaches saturation at 700 mVolt; refer to the arrow in Fig. 1.
1. Camera:
5
Intensifying the camera signal may result in truncation (limitation) of the image signal
when there are significant signal changes.
•
Reduce camera amplification.
Fig. 1