8-26 
 
8.11.2 Extending the Rhythm Lead Waveform Area 
You can extend the height of rhythm lead waveform area. To do so,   
1. In the [ECG Setup] menu, select [Others>>] to enter the [Others Setup Menu]. 
2. Set [ECG Display Area] to [Extended]. 
 
 
8.12 Troubleshooting   
This section lists the problems that might occur. If you encounter the problems when using 
the equipment or accessories, check the table below before requesting for services. If the 
problem persists, contact your service personnel. 
 
 CAUTION 
z  Never try to disassemble the equipment or supplied accessories. There are no 
internal user-serviceable parts. 
 
Symptoms Possible Cause  Correction Action 
Noisy ECG traces 
 
Loose or dry electrodes  Apply fresh and moist electrodes. 
Defective electrode wires  Replace wires if necessary. 
Patient cable or leads are 
routed too close to other 
electrical devices 
Move the patient cable or leads away 
from the electrical device.
Excessive 
Electro-surgical 
Interference 
Wrong ECG cable used  Use ESU-proof ECG cables. For 
details, refer to 26.1 ECG Accessories.
Muscle Noise 
 
Inadequate skin preparation 
prior to application of 
electrode, tremors, tense 
subject, and/or poor 
electrode placement 
Repeat skin preparation as described in 
8.3.1 Preparing the Patient and 
Placing the Electrodes and re-place 
the electrodes. 
Apply fresh, moist electrodes.   
Avoid muscular areas. 
Intermittent Signal  Connections not tight and/or 
properly secured 
Check that the cables are properly 
connected. 
Electrodes dry or loose  Repeat skin preparation as described in 
8.3.1 Preparing the Patient and 
Placing the Electrodes and apply 
fresh and moist electrodes.