Service manual

CONTENT
1. GENERAL INFORMATION OF THIS DOCUMENT...................................... 5
1.1 GETTING START ................................................................................................................. 5
1.2 CONVENTIONS.................................................................................................................... 5
1.3 IMPORTANT SAFETY INSTRUCTIONS ................................................................................. 6
2. CHARACTERISTIC OF THE PRODUCT........................................................... 8
3. CONSTRUCTION OF THE PRODUCT............................................................... 9
3.1 OPEN THE OUTSIDE COVER ............................................................................................. 9
3.2.1 1K................................................................................................................................10
3.2.2 1KS Super Charger......................................................................................................11
3.2.3 2K.................................................................................................................................11
3.2.4 3K................................................................................................................................12
3.2.5 2/3KS super charger ................................................................................................... 13
4.COMPONENTS LOCATION .................................................................................... 14
5. PRINCIPLE OF OPERATION ................................................................................ 16
5.1 FUNCTIONAL BLOCK OF THE PRODUCT......................................................................... 16
5.2 OPERATING PRINCIPLE OF THE MAJOR FUNCTIONAL BLOCK..................................... 18
5.2.1 AC/DC converter (PFC)............................................................................................... 18
5.2.2 DC/DC converter (Battery Booster)............................................................................. 19
5.2.3 Inverter........................................................................................................................ 20
5.2.4 Global Controller ......................................................................................................... 21
5.2.5 Standard Charger and Super Charger......................................................................... 22
5.2.6 Auxiliary Power Supply (SPS) ..................................................................................... 23
5.2.7 User Interface.............................................................................................................. 24
5.2.8 Ventilation and Chassis............................................................................................... 25
5.3 PCB
S OF THE UPS.............................................................................................................. 26
5.4 I
NTERCONNECTION OF THE PCBS........................................................................................ 27
6. TROUBLE SHOOTING ............................................................................................. 28
6.1 LCD PANEL DISPLAY DEFINITION .................................................................................. 28
6. 2 TROUBLE SHOOTING PROCEDURES.............................................................................. 31
6.2.1 How To Start................................................................................................................ 31
6.2.2 Find Out The Problem Quickly .................................................................................... 32
6.3 FAILURE DIAGNOSIS........................................................................................................ 32
3