3.6.1 RF-interference on the IR-cell, or on the electronic units
If the generator's high frequency disrupts the electronic units or the infrared cell, then the base
line on the PC monitor appears jerky.
: Draft high frequency generator (1-4-4 + 1-4-5S)
The causes
– The screws (1) are not tightened properly, or not all 22 of them are
screwed in.
– The cap nuts (2) are not tightened properly or not all 14 are in place.
– The cover (3) does not seal properly with the plates (4) and (5) or with the contract
straps behind it, on the front panel (6)
– One or both filters (7) are not OK
– The filter (11) can also be damaged in this way.
– When the ground strip (12) is not connected after removal or replacement of the oscillator
the filters (7) will defect. In this case the drift appears after the generator is started. In
order to find out whether is high frequency interference, carefully disconnect a primary
wire of the high voltage transformer. If the drift remains the same after starting analysis
cycle, then high frequency interference is excluded.
– The capacitor (9) is out of order
– The capacitor (10) is out of order. This is however less likely.
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