ALGO® 5 Newborn Hearing Screener Service Manual
P/N 000976 Rev.A
3
Table of Contents
List of Figures and Tables ..............................................................................................................................3
1.
Introduction ............................................................................................................................................5
1.1.
About this manual..........................................................................................................................5
1.1.1.
Overview...............................................................................................................................5
1.1.2.
Intended users ......................................................................................................................5
1.1.3.
Manual conventions..............................................................................................................5
1.2.
Product description........................................................................................................................6
1.3.
Pictorial introduction to the ALGO 5..............................................................................................7
1.4.
Before you start ...........................................................................................................................11
1.5.
Contacting your Natus Technical Service ...................................................................................11
2.
Routine Maintenance Procedure .........................................................................................................12
2.1.
Inspecting Accessory Parts .........................................................................................................12
2.2.
Cleaning the ALGO 5 ..................................................................................................................12
2.2.1.
Cleaning the Screener........................................................................................................12
2.2.2.
Cleaning the cart ................................................................................................................13
2.3.
Safety testing...............................................................................................................................13
2.3.1.
Ground Integrity ..................................................................................................................13
2.3.2.
Earth leakage current .........................................................................................................14
2.3.3.
Enclosure leakage current..................................................................................................14
2.4.
Performance verification .............................................................................................................15
2.4.1.
Equipment Check for the ALGO 5 screener.......................................................................15
2.4.2.
Component tests ................................................................................................................20
2.4.2.1.
General ...............................................................................................................................20
2.4.2.2.
ATA 5 Cable calibration due Warnings ..............................................................................21
3.
Troubleshooting Guide.........................................................................................................................22
3.1.
Troubleshooting the ALGO 5 ......................................................................................................23
3.2.
Troubleshooting the Panel PC ....................................................................................................25
3.2.1.
Replacing the battery for the RTC (Real Time Clock) on the Panel PC.............................25
3.3.
Troubleshooting the Isolation Transformer .................................................................................28
3.4.
Troubleshooting the ATA 5 .........................................................................................................30
3.5.
Troubleshooting the Preamp 5....................................................................................................31
3.6.
Troubleshooting the PCA 5 .........................................................................................................33
4.
Technical Troubleshooting Guide ........................................................................................................34
4.1.
High Impedance ..........................................................................................................................34
4.2.
High Myogenic.............................................................................................................................35
4.3.
High Refer Rate...........................................................................................................................36
4.4.
High Ambient...............................................................................................................................37
5.
Parts and Specifications ......................................................................................................................38
5.1.
How to order parts.......................................................................................................................38
5.2.
Parts list.......................................................................................................................................38
5.3.
Specifications ..............................................................................................................................40
6.
Index ....................................................................................................................................................41
List of Figures and Tables
FIGURE 1: ALGO 5 — front view ...................................................................................................................7
FIGURE 2: ALGO 5 — rear view (cover removed) ........................................................................................8
FIGURE 3: DSP Box.......................................................................................................................................9
FIGURE 4: Preamplifier 5 (Preamp 5)............................................................................................................9
FIGURE 5: Acoustic Transducer Assembly (ATA 5) ....................................................................................10
FIGURE 6: Patient Cable Assembly (PCA 5) ...............................................................................................10
FIGURE 7: Main Window .............................................................................................................................15
FIGURE 8: ALGO Check Kit.........................................................................................................................15
