Xtreme Power Conversion P91 - Table of Contents

Xtreme Power Conversion Corporaon
P91, TX91, TX91L, TXVR Service Manual
Page 2
Uninterrupble Power Supply
Table of Contents
1 General Informaon..................................................................................3
1.1 Geng Started...........................................................................................................................3
1.2 Important Safey Instrucons....................................................................................................3
2 Specicaons............................................................................................4
3 Funconal Block........................................................................................7
4 Working Principle of the Major Funconal Block...........................................8
4.1 Switch Power Supply..................................................................................................................8
4.2 PFC/Booster...............................................................................................................................9
4.3 Inverter.......................................................................................................................................9
4.4 Charger......................................................................................................................................10
4.5 EMI Board.................................................................................................................................10
5 Funcon explanaons for each PCB.........................................................11
5.1 SPS-Charger Board...................................................................................................................11
5.2 Control Board...........................................................................................................................12
5.3 Communicaon Board.............................................................................................................12
5.4 EMI Board................................................................................................................................12
5.5 Main Power Board...................................................................................................................13
5.6 Para Board...............................................................................................................................14
5.7 O/P Relay Board.......................................................................................................................15
6 Interface..................................................................................................15
6.1 LED Display...............................................................................................................................15
6.2 LCD Display...............................................................................................................................16
6.3 LCD Display Icon......................................................................................................................16
7 Troubleshoong......................................................................................18
7.1 LCD Panel Display Paern Denion.......................................................................................18
7.2 Repair.......................................................................................................................................23
7.2 Repair.......................................................................................................................................23
8 Test Step.................................................................................................28
9 Appendix.................................................................................................29