PTX2-A3
Service Manual Rev.2
Page 7 of total 19 August 2007
3. Troubleshooting
3.4 Inverter Analysis
6/10kVA-Inverter-Right side
6/10kVA-Inverter-Middle side
6/10kVA-Inverter-Left side
Step
Checked components
Instrument
function
Reference
Value
Failure Mode
(E,C)
100k
Short
1
Q201,Q202,
Q203,Q204
(G,E)
47.6k
Short or Open
2
D201,D202,D203,D204
Diode 0.36V
0V
3
D210,D211,D212,D213
Diode
46 Open
4
R201,R202,R208,R209
10
Open
5
R203,R204,R210,R211
36
Open
Action ltem:
Make sure the DC fuses with same rating as original ones for replacement. Otherwise,
unpredictable danger might happen.
