12.4 Troubleshooting
WARNING
: Disassembly of the N-20P can expose service personnel to potentially hazardous voltages.
For protection of service personnel and patients, the procedures must be performed as described in this
section. Repair and testing must only be performed by qualified service personnel. Improper repair and/or
adjustment may compromise patient safety or the accuracy of the instrument.
Required Equipment/Tools
• Screwdriver, Phillips
• Pliers, long nose
• Screwdriver, small flathead
• Soldering iron, low-power
N-20P Disassembly Procedure
Whenever repair or disassembly is required, always wear a ground strap connected to active ground. Before
any disassembly or service procedure, switch instrument power off.
Figure 12.8 Sensor Lock, and Printer, Paper, and Battery Access Doors
1. Remove the battery door (19) and batteries.
2. Remove the sensor lock (34) by lightly pressing in on its ears and pulling out from the sensor shroud.
3. Remove the paper door (20) and paper roll, and the printer door (21).
12-28
21
19
20
34