natus neoBLUE, Руководство по обслуживанию

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Symptom Probable cause Corrective Action Reference
Multiple LED
strings go out;
cannot attain
appropriate
intensity Damaged LED light
panel Replace LED light panel Section 4.2 on
page 28
3.2 Troubleshooting the LED light current assembly
Note: The tests in this section are intended as a guide to trouble shooting a neoBlue that has the
appearance of not operating at optimum level. Successfully passing the tests of this section is not
intended to indicate an acceptable operational level of the neoBLUE.
•
All cables of the neoBLUE must be connected in order to make the following measurements (leave the
neoBLUE power switch in the OFF position).
•
Attach the AC power cord to the neoBLUE and plug it into an appropriate AC power source.
•
Verify that the neoBLUE is getting the correct mains voltage at the power supply module input.
Ac voltage into the power supply should be 100VAC to 240VAC (depending on the available
AC power source).
•
Failure of this check indicates a possible problem with:
1. The AC power source
2. The AC power cord
3. The AC power input fuse(s)
4. The AC power input module.
5. The AC power cable between the AC power input module and the power supply.
•
Verify 26-26.5VDC at the Constant Current PCBA input (power supply output).
•
This measurement should be made between J2.1(+) and J2.4(-).
•
Note: “Jx.y(+)” means the measurement is to be taken with the positive test lead on pin y of Jx and
“Jx.y(-+)” means the measurement is to be taken with the negative test lead on pin y of Jx.
Measure
AC input
here. Pins
3 & 5
neoBLUE
®
LED Phototherapy System Service Manual
23
PN 001320 Rev K