Mindray WATO EX-55Pro, Service Manual

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8-1
8
Troubleshooting
8.1 Troubleshooting Guide
8.1.1 Fault Determination
Problems that are hard to detect may exist in some fault symptoms due to existence of multiple
potential faults. If related faults exist, the following troubleshooting can help you identify faults (if
any).
8.1.2 Avoiding Short Circuit of Component Leads
During the repairing process, a serial of quick measurement must be conducted. Ensure that you
shut down the power supply before connecting or disconnecting the testing leads or probes. Short
circuit of leads may cause damage to components. In addition to the security risks, short circuit of
leads may also cause secondary faults.
8.1.3 Using Appropriate Tools
The following tools may be required for repairing:
 Metric hex wrench set (2.5, 3, 4, 5, and 8 mm)
 Philips screwdriver (#1 and #2)
 Diagonal pliers
 Screwdriver
 Metric M3 and M4 socket screwdriver
 Adjustable wrench
 Tweezers
 Krytox lubricant (P/N: 0510-00-0020)
Use the specified tools to ensure that all the test procedures and results are correct.