Trace Rotation Check; R9057: Readout Operating Point - Hameg CombiScope HM1508-2 Service Manual

M A N U A L A D J U S T M E N T P R O C E D U R E H M 1 5 0 8 - 2
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Trace Rotation Check

– Select "Trace Rot.".
– Set baseline with POSITION 1 to the horizontal centre line of the graticule.
– Turn INTENS knob to adjust baseline exactly parallel to the horizontal centre line of the graticule.
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R9057
Readout Operating Point
– Locate and identify R9057 on YF-Board.
– Connect a 25 mV , 10 Hz square wave signal via 50 cable and 50 through terminator to input CH 1.
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– Set input attenuator CH 1 to 1 mV/div.
– Set input coupling CH 1 to AC.
– Set time base to 2 ms/div.
– Adjust R9057 for minimal fl ickering readout display.
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Subject to change without notice
C9001 C9037
R9034 R9126
R9114 C9045 R9118
R9057
C9009 R9149