Revision:1.0(2023-01-12)
384
2. If indicators 1/4 are off, you can check whether the main unit and trolley magnetic connections
are normal. If the connections are normal, it is probably that the spring cable is abnormal.
3. Replace the Main Board Assembly or On/off Button Board. For details, refer to 7.13.2
Disassembly and Assembly or 7.21.2 Disassembly and Assembly.
88..33..11..33 The AC indicator is on, and the power indicator blinks green after
the power key is pressed
Fault Description
The AC indicator is on, and the power indicator blinks green after the power key is pressed
Involved FRU
Main Board Assembly and PC module assembly
Severity
Suspension
Handling Level
Contact the device provider for onsite handling.
Possible Cause
1. EC on the main board does not detect S3/S4 raise signals.
2. The PC module does not send S3/S4 signals.
Resolve Path
1. Check whether indicators S3/S4 (8/9) on the rear of the main unit box are on. If they are on, EC
on the main board does not detect S3/S4 signals sent y the PC and the main board is faulty.
2. If they are off, the PC module does not send S3/S4 signals and the PC module is faulty.
Solution
1. Replace the Main Board Assembly. For details, refer to 7.13.2 Disassembly and Assembly.
2. Replace the PC module assembly. For details, refer to 7.11.2
Disassembly and Assembly.
88..33..11..44 The AC indicator is on, and the power indicator flickers orange after
the power key is pressed.
Fault Description
The AC indicator is on, and the power indicator flickers orange after the power key is pressed.
Diagnostic Ultrasound System
Service Manual
8 Troubleshooting
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