Fisher & Paykel MR700 Product Change History, Date Change First Serial Number Comments Affected

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41

9.0PRODUCT CHANGE HISTORY ___________________________________

This change history details changes which may have significance for servicing. It does not include changes that are insignificant to users or service technicians. Refer also to change panel on circuit diagrams.

DATE

CHANGE

FIRST SERIAL

 

 

 

NUMBER

NUMBER

 

COMMENTS

 

 

AFFECTED

 

 

29/06/92

1056

92XXAAA02786

Introduction of Version 2.0 Software.

 

 

 

Changes from Version 1.0 are:

 

 

 

Delay on chamber temperature display.

 

 

 

Sensitivity of control knobs increased.

 

 

 

Auto standby mode for MR720.

 

 

 

(Note: this change not introduced on AF- and AG- models

 

 

 

until serial number 93XXAAA01818, excluding AGM models).

03/08/92

1019

92XXAAA05495

Enhanced 41 °C calibration - with introduction of Rev F PCB.

 

 

 

Note: this change not introduced on AF- and AG- models until serial

 

 

 

number 93XXAAA01818).

22/01/93

1363

93XXAAA01818

Introduction of Version 2.0 Software on AF- and AG- models.

 

 

 

Note: this change not introduced on AGM models.

25/01/93

1100

93XXAAA02582

C7 added, R57 changed to 390E from 1k2.

7/06/94

1992

9473JES08020 (1)

Version 3.0 software started.(All countries except Japan and German)

 

 

 

Changes from version 2.0 are:

 

 

 

Standby mode times out after 30 minutes (was 20).

 

 

 

Low temperature alarm in warm up mode activated sooner.

 

 

 

Set low indicator alarm changed.

 

 

 

Display during A to D calibration improved.

12/10/94

2088

9473AGU17549

AGU AND AGT Models to version 3 software.

22/08/94

2079

9473AGM14257

MR730AGM to version 3 software.

15/12/94

2161

9473GES22496

MR730GES to version 3 software .

17/02/95

2313

9573GEU03084

MR730GEU to version 3 software.

3/07/95

2469

9541JHB10757

Electroless nickel plating on heaterplate started.

9/08/95

2433

9573JHB12155

Changed recommended settings on front fascia panel to 39, -2.

1/10/95

2443

9573AEA15923

Introduction of Rev H PCB on MR700/720/730. Change Molex

 

 

 

connectors style on power PCB.

01/4/97

3212

9773XXX08041

Introduction of Revision J PCB on MR700/720/730.

23/5/97

3303

9748XXX10692

MR480: Introduce Revision J PCB. Transformer secondary wiring

 

 

 

changed (earth wire removed). Earth wire added to PCB.

30/5/97

3308

9773XXX19731

Heaterplate standoff style changed to shoulder bolts.

01/01/98

3934

9973XXX00001

Heaterplate surface changed to Anodised

01/01/99

4371

2000-73XXX00001

Reflector added to underside of heaterplate

For software and hardware compatability see § 7.3.

Ref. 185040646 MR730/720/700/480 Technical Manual ¯ Revision F ¯ Issued March 2001

Image 47
Contents Auckland, New Zealand D E L S MR730 MR720 MR700 MR480National Office Revision F changes Section Description of ChangeContents Performance Check MR480 Dual Probe Temperature Test10.1 Power PCB Harness Connection DiagramMaintenance Schedule B1.1 Maintenance Schedule ChecklistAppendix D Models MR730/720/700 MR700 Series General SpecificationsRSD EOHSET TOPMR700 Series Humidifiers with Version 1.0 Software Operating Controls and ModesStandby Button MR700/720/730 only 1 MR700/MR730 ALL Software VERSIONS, MR720 Version 1.0 only 2 MR720 Version 2.0, 3.0 SoftwareAlarms and Indicators Version 3.0 Software Version 1.0 and Version 2.0 SoftwareAudio Alarm Circuit Operation Power Line Interrupt Revisions D/F Pcbs Revision H and J Pcbs For models with Revision D PCB and earlier CalibrationPage Performance Check Alarms Check MR700/720/730 Dual Probe Temperature Test Servicing Information Replacing revision F or earlier power PCB MR700/720/730Replacing revision F or earlier power PCB MR480 Fault Location SCHEMATICS, Part Lists and Mechanical Drawings Power Board Control Board Component Layout Revision F PCB Page This page Left Blank Circuit Diagrams Revision H and J PCB Control PCB Circuit Diagrams Revision H and J PCB Power PCB Circuit Diagrams Revision F PCB Control PCB Circuit Diagrams Revision F PCB Power PCB LED6,LED7 LED8,LED9,LED10 DSP1, DSP2, DSP3LED1, LED3 LED2,LED4, LED5,LED11VR4 SW5SPK1 VR1Fuse fast acting 2 a 20 × 5 mm for 230 999830009 MR480AGM Exploded Diagrams MR480 10.3 MR730/720/700 Mechanical Parts MR720ASU Exploded Diagrams MR730/720/700 Heaterplate Assembly Parts MR730/720/700/480 Page PCB Identification Diagram Power PCB Harness Connection Diagram Date Change First Serial Number Comments Affected Product Change HistoryYear Model Code Serial Number AAA XxxxxOFF Appendix aA2.3 Integral Display Error MessagesEP4 EP1EP2 EP3Third Byte First ByteSecond Byte A5.4 Serial Data Interface Connector Appendix B B1 Maintenance ScheduleElectrical Safety Checks as required Photocopy and File in Maintenance RecordsPossible cause Action to take Appendix CHigh Temperature C1.6 C1.5LED on Check Voltage Rating Of Unit Appendix D Cleaning instructionsAppendix E Setup NotesDynamic Test Sequence MR730/720/700 Dynamic Test Procedure MR480