Xtreme Power Conversion M90, Service Manual

Page: 23 / 25

Xtreme Power Conversion Corporation
M90 & M90L Service Manual
Page 23
Uninterruptible Power Supply
R400,R399,R398,R404,R401,R403,R40
8,R405,R407
Resistance 49.9kΩ±0.1% Value change
R323,R319,R321,R318,R344,R315 Resistance 402kΩ±0.1% Value change
R389,R402,R406 Resistance 200KΩ±0.1% Value change
R331,R332,R333,R355,R334,R293,R33
5,R296,R328,R329,R330,R354,R346,R3
06,R347,R308,R325,R326,R327,R353,R
342,R343,R356,R357
Resistance 750KΩ±0.1% Value change
R24,R23,R33,R45,R18,R16, R40,R39,R1
7,R15,R28,R42,R8,R9,R32,R31,R54,R5
3,R57,R65,R48,R49,R60,R61
Resistance 47Ω±1% Value change
R19,R20,R27,R41,R11,R13, R36,R34,R1
2,R10,R26,R35,R6,R7,R29,R30,R50,R5
1,R56,R62,R46,R47,R58,R59
Resistance 510Ω±1% Value change
Q35,Q31 (D,S) Diode
Voltage Droop
•0.24V Short or open
(G,S) Resistance >50kΩ Short or open
D36,D7,D9,D35,D11,D32,D13,D25,D2,
D1,D3,D4,D5,D6,D8,D10,D12
Diode
Voltage Droop
•0.38V Short or open
D14,D16,D22,D21 Diode
Voltage Droop
•0.24V Short or open
F10,F11,F12,F13,F15,F14,F22,F23,F24,
F19,F20, F21,F16,F17,F18
Diode Voltage
Droop
•0V open
Note: If MOSFET/SCR is OK, but the parameter is not close to the reference value, it is very possible that the cor -
responding driver is damaged, so please try to change the IGBT driver component.
Major parameters of PFC Board section
The most likely problems occur on PFC board section including: broken IGBT, broken Diode, and broken IGBT
driver resistor.
PFC Board
Checked components Instrument function Reference Failed
R66,R84,R127,R62,R123,R82,
R64,R80,R125
Resistance 30Ω±1% Value change
R 7 3 , R 8 9 , R 1 4 8 , R 5 8 , R 7 6 , R 1 0 6 ,
R70,R146,R88,R57,R74,R105,
R72,R87,R147,R56,R104,R75
Resistance 10Ω±1% Value change
R54,R71,R92,R55,R69,R91,
R53, R90, R68
Resistance 2.2Ω±1% Value change
R 6 7 , R 8 5 , R 1 2 8 , R 6 0 , R 7 9 , R 1 1 5 ,
R 6 3 , R 1 2 4 , R 8 3 , R 5 9 , R 7 7 , R 1 1 4 ,
R65,R81,R126,R61,R113,R78
Resistance 49.9kΩ±1% Value change
Q 4 , Q 1 0 , Q 1 7 , Q 1 , Q 7 , Q 1 4 , Q 5 ,
Q16,Q12,Q2,Q8,Q15,Q6,Q11,
Q18,Q3Q13,Q9
(C,E) Diode Voltage
Droop
•2.0V Short or open
(G,E) Resistance >25kΩ Short or open