80-0056-00-SM-RevD 2017-12-13 SunTech Tango M2 Service Manual | 10
For monitors that are outside the warranty period the enclosure may be removed and the circuit boards
separated if it is required to inspect the unit for mechanical damage (e.g. for liquid ingress after spillage or if
the unit has been dropped).
7.1 General Internal Inspection
Note: THE WARRANTY FOR THE TANGO M2 MONITOR WILL BE VOIDED IF THE WARRANTY SEAL IS
BROKEN. The Tango M2 monitor should only be serviced by a SunTech Medical trained and certified
technician.
WARNING – Prior to servicing any internal components, disconnect device from power. Failure to
remove power may result in a shock hazard and/or severe injury.
To avoid the risk of electric shock, this equipment must only be connected to a supply mains with protective
earth.
7.1.1 Open the enclosure by removing the four Philips head screws located on the four corners of the
rear enclosure (one covered by warranty seal).
7.1.2 See section 6 for disassembly instructions.
7.1.3 Inspect assembly for damage or contamination. Should any damage or liquid contamination be
evident, the Tango M2 should be re-assembled and returned to SunTech for board replacement
and full re-test. Any dry contamination (e.g. dust or small objects that may have fallen through the
grill) may be removed, using a brush or gentle compressed air.
7.1.4 See section 6 for reassembly instructions.
7.1.5 Perform a Leak Rate test and a Timeout Test (as described in Section 4) to verify that the
pneumatic system is functioning correctly. If either fails, open the monitor back up and check for
damage and kinks in the pneumatic tubing.
8.0 Disassembly and Reassembly
Note: There are three variants of monitors used for the 99 level: The variant with the original LCD is part
number 97-0144-00. Variant 97-0191-00 has a different LCD within the monitor. A different LCD is contained
within variant 97-0227-00. The LCDs are not interchangeable between monitors. Disassembly is virtually the
same, however the variants 97-0191-00 and 97-0227-00’s LCD are mounted differently in that they also have
a mounting tray and do not have the same connections. They are connected solely by a ribbon cable and no
other connectors. The difference between variants 97-0191-00 and 97-0227-00 is that the newest variant has
an LCD overlay attached to the LCD itself around the border of the LCD. Pictures of all three variants are
provided in this document. If the LCD requires replacement in the 97-0227-00 variant, see 97-0227-XX-PP, as
there are additional instructions for mounting this LCD to the UI board.
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